ets-labs/python-dependency-injector
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Merge branch 'develop' of github.com:ets-labs/python-dependency-injector into python-3.10

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This commit is contained in:
Roman Mogylatov 2021-10-18 16:28:09 -04:00
commit a631ca213f
200 changed files with 11586 additions and 11358 deletions
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2
.github/workflows/tests-and-linters.yml vendored
View File

@ -9,7 +9,7 @@ jobs:
runs-on: ubuntu-18.04
strategy:
matrix:
python-version: [2.7, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, "3.10", pypy2, pypy3]
python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9, "3.10", pypy2, pypy3]
steps:
- uses: actions/checkout@v2
- uses: actions/setup-python@v2

3
.gitignore vendored
View File

@ -36,6 +36,7 @@ reports/
.cache
nosetests.xml
coverage.xml
.hypothesis/
# Translations
*.mo
@ -54,7 +55,7 @@ target/
.idea/
# Virtualenv
venv/
venv*/
# SQLite
*.db

11
Makefile
View File

@ -45,17 +45,10 @@ install: uninstall clean cythonize
uninstall:
- pip uninstall -y -q dependency-injector 2> /dev/null
test-py2: build
test:
# Unit tests with coverage report
coverage erase
coverage run --rcfile=./.coveragerc -m unittest discover -s tests/unit/ -p test_*_py2_py3.py
coverage report --rcfile=./.coveragerc
coverage html --rcfile=./.coveragerc
test: build
# Unit tests with coverage report
coverage erase
coverage run --rcfile=./.coveragerc -m unittest discover -s tests/unit/ -p test_*py3*.py
coverage run --rcfile=./.coveragerc -m pytest -c tests/.configs/pytest.ini
coverage report --rcfile=./.coveragerc
coverage html --rcfile=./.coveragerc

4
docs/main/changelog.rst
View File

@ -13,7 +13,11 @@ Develop
``container.wire(modules=["yourapp.module1"])``.
- Add container wiring configuration ``wiring_config = containers.WiringConfiguration()``.
- Add support of ``with`` statement for ``container.override_providers()`` method.
- Drop support of Python 3.4. There are no immediate breaking changes, but Dependency Injector
will no longer be tested on Python 3.4 and any bugs will not be fixed.
- Fix ``Dependency.is_defined`` attribute to always return boolean value.
- Update documentation and fix typos.
- Migrate tests to ``pytest``.
4.36.2
------

2
requirements-dev.txt
View File

@ -1,4 +1,6 @@
cython==0.29.22
pytest
pytest-asyncio
tox
coverage
flake8

1
setup.py
View File

@ -96,7 +96,6 @@ setup(name="dependency-injector",
"Programming Language :: Python :: 2",
"Programming Language :: Python :: 2.7",
"Programming Language :: Python :: 3",
"Programming Language :: Python :: 3.4",
"Programming Language :: Python :: 3.5",
"Programming Language :: Python :: 3.6",
"Programming Language :: Python :: 3.7",

10
src/dependency_injector/containers.pyi
View File

@ -49,7 +49,7 @@ class Container:
def __delattr__(self, name: str) -> None: ...
def set_providers(self, **providers: Provider): ...
def set_provider(self, name: str, provider: Provider) -> None: ...
def override(self, overriding: C_Base) -> None: ...
def override(self, overriding: Union[Container, Type[Container]]) -> None: ...
def override_providers(self, **overriding_providers: Union[Provider, Any]) -> ProvidersOverridingContext[C_Base]: ...
def reset_last_overriding(self) -> None: ...
def reset_override(self) -> None: ...
@ -88,6 +88,14 @@ class DeclarativeContainer(Container):
cls_providers: ClassVar[Dict[str, Provider]]
inherited_providers: ClassVar[Dict[str, Provider]]
def __init__(self, **overriding_providers: Union[Provider, Any]) -> None: ...
@classmethod
def override(cls, overriding: Union[Container, Type[Container]]) -> None: ...
@classmethod
def override_providers(cls, **overriding_providers: Union[Provider, Any]) -> ProvidersOverridingContext[C_Base]: ...
@classmethod
def reset_last_overriding(cls) -> None: ...
@classmethod
def reset_override(cls) -> None: ...
class ProvidersOverridingContext(Generic[T]):

343
src/dependency_injector/providers.c
View File

@ -17675,7 +17675,7 @@ static PyObject *__pyx_pf_19dependency_injector_9providers_10Dependency_14set_de
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* try:
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/* "(tree fragment)":1

17
src/dependency_injector/providers.pyx
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@ -771,7 +771,7 @@ cdef class Dependency(Provider):
@property
def is_defined(self):
"""Return True if dependency is defined."""
return self.__last_overriding or self.__default
return self.__last_overriding is not None or self.__default is not None
def provided_by(self, provider):
"""Set external dependency provider.
@ -4743,10 +4743,7 @@ def traverse(*providers, types=None):
def isawaitable(obj):
"""Check if object is a coroutine function.
Return False for any object in Python 3.4 or below.
"""
"""Check if object is a coroutine function."""
try:
return inspect.isawaitable(obj)
except AttributeError:
@ -4754,10 +4751,7 @@ def isawaitable(obj):
def iscoroutinefunction(obj):
"""Check if object is a coroutine function.
Return False for any object in Python 3.4 or below.
"""
"""Check if object is a coroutine function."""
try:
return inspect.iscoroutinefunction(obj)
except AttributeError:
@ -4765,10 +4759,7 @@ def iscoroutinefunction(obj):
def isasyncgenfunction(obj):
"""Check if object is an asynchronous generator function.
Return False for any object in Python 3.4 or below.
"""
"""Check if object is an asynchronous generator function."""
try:
return inspect.isasyncgenfunction(obj)
except AttributeError:

6
tests/.configs/pytest-py27.ini Normal file
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@ -0,0 +1,6 @@
[pytest]
testpaths = tests/unit
python_files = test_*_py2_py3.py
filterwarnings =
ignore:Module \"dependency_injector.ext.aiohttp\" is deprecated since version 4\.0\.0:DeprecationWarning
ignore:Module \"dependency_injector.ext.flask\" is deprecated since version 4\.0\.0:DeprecationWarning

6
tests/.configs/pytest-py35.ini Normal file
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@ -0,0 +1,6 @@
[pytest]
testpaths = tests/unit
python_files = test_*_py3.py
filterwarnings =
ignore:Module \"dependency_injector.ext.aiohttp\" is deprecated since version 4\.0\.0:DeprecationWarning
ignore:Module \"dependency_injector.ext.flask\" is deprecated since version 4\.0\.0:DeprecationWarning

6
tests/.configs/pytest.ini Normal file
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@ -0,0 +1,6 @@
[pytest]
testpaths = tests/unit/
python_files = test_*_py3*.py
filterwarnings =
ignore:Module \"dependency_injector.ext.aiohttp\" is deprecated since version 4\.0\.0:DeprecationWarning
ignore:Module \"dependency_injector.ext.flask\" is deprecated since version 4\.0\.0:DeprecationWarning

2
tests/unit/__init__.py
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@ -1 +1 @@
"""Dependency injector unit tests."""
"""Tests package."""

52
tests/unit/asyncutils.py
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@ -1,52 +0,0 @@
"""Test utils."""
import asyncio
import contextlib
import sys
import gc
import unittest
def setup_test_loop(
loop_factory=asyncio.new_event_loop
) -> asyncio.AbstractEventLoop:
loop = loop_factory()
try:
module = loop.__class__.__module__
skip_watcher = "uvloop" in module
except AttributeError: # pragma: no cover
# Just in case
skip_watcher = True
asyncio.set_event_loop(loop)
if sys.platform != "win32" and not skip_watcher:
policy = asyncio.get_event_loop_policy()
watcher = asyncio.SafeChildWatcher() # type: ignore
watcher.attach_loop(loop)
with contextlib.suppress(NotImplementedError):
policy.set_child_watcher(watcher)
return loop
def teardown_test_loop(loop: asyncio.AbstractEventLoop, fast: bool = False) -> None:
closed = loop.is_closed()
if not closed:
loop.call_soon(loop.stop)
loop.run_forever()
loop.close()
if not fast:
gc.collect()
asyncio.set_event_loop(None)
class AsyncTestCase(unittest.TestCase):
def setUp(self):
self.loop = setup_test_loop()
def tearDown(self):
teardown_test_loop(self.loop)
def _run(self, f):
return self.loop.run_until_complete(f)

8
tests/unit/conftest.py Normal file
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@ -0,0 +1,8 @@
"""Fixtures module."""
import sys
import os.path
# Add current package to import samples/ dir
sys.path.append(os.path.dirname(__file__))

2
tests/unit/containers/__init__.py
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@ -1 +1 @@
"""Dependency injector container unit tests."""
"""Container tests."""

1
tests/unit/containers/cls/__init__.py Normal file
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@ -0,0 +1 @@
"""Container class tests."""

36
tests/unit/containers/cls/test_custom_strings_py2_py3.py Normal file
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@ -0,0 +1,36 @@
"""Tests for container cls with custom string classes as attribute names.
See: https://github.com/ets-labs/python-dependency-injector/issues/479
"""
from dependency_injector import containers, providers
from pytest import fixture, raises
class CustomString(str):
pass
class CustomClass:
thing = None
class Container(containers.DeclarativeContainer):
pass
@fixture
def provider():
return providers.Provider()
def test_setattr(provider):
setattr(Container, CustomString("test_attr"), provider)
assert Container.test_attr is provider
def test_delattr():
setattr(Container, CustomString("test_attr"), provider)
delattr(Container, CustomString("test_attr"))
with raises(AttributeError):
Container.test_attr

498
tests/unit/containers/cls/test_main_py2_py3.py Normal file
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@ -0,0 +1,498 @@
"""Main container class tests."""
import collections
from dependency_injector import containers, providers, errors
from pytest import raises
class ContainerA(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
class ContainerB(ContainerA):
p21 = providers.Provider()
p22 = providers.Provider()
class ContainerC(ContainerB):
p31 = providers.Provider()
p32 = providers.Provider()
def test_providers_attribute():
assert ContainerA.providers == dict(p11=ContainerA.p11, p12=ContainerA.p12)
assert ContainerB.providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
)
assert ContainerC.providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
p31=ContainerC.p31,
p32=ContainerC.p32,
)
def test_providers_attribute_with_redefinition():
p1 = providers.Provider()
p2 = providers.Provider()
class ContainerA2(ContainerA):
p11 = p1
p12 = p2
assert ContainerA.providers == {
"p11": ContainerA.p11,
"p12": ContainerA.p12,
}
assert ContainerA2.providers == {
"p11": p1,
"p12": p2,
}
def test_cls_providers_attribute():
assert ContainerA.cls_providers == dict(p11=ContainerA.p11, p12=ContainerA.p12)
assert ContainerB.cls_providers == dict(p21=ContainerB.p21, p22=ContainerB.p22)
assert ContainerC.cls_providers == dict(p31=ContainerC.p31, p32=ContainerC.p32)
def test_inherited_providers_attribute():
assert ContainerA.inherited_providers == dict()
assert ContainerB.inherited_providers == dict(p11=ContainerA.p11, p12=ContainerA.p12)
assert ContainerC.inherited_providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
)
def test_dependencies_attribute():
class ContainerD(ContainerC):
p41 = providers.Dependency()
p42 = providers.DependenciesContainer()
class ContainerE(ContainerD):
p51 = providers.Dependency()
p52 = providers.DependenciesContainer()
assert ContainerD.dependencies == {
"p41": ContainerD.p41,
"p42": ContainerD.p42,
}
assert ContainerE.dependencies == {
"p41": ContainerD.p41,
"p42": ContainerD.p42,
"p51": ContainerE.p51,
"p52": ContainerE.p52,
}
def test_set_get_del_providers():
a_p13 = providers.Provider()
b_p23 = providers.Provider()
ContainerA.p13 = a_p13
ContainerB.p23 = b_p23
assert ContainerA.providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p13=a_p13,
)
assert ContainerB.providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
p23=b_p23,
)
assert ContainerA.cls_providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p13=a_p13,
)
assert ContainerB.cls_providers == dict(
p21=ContainerB.p21,
p22=ContainerB.p22,
p23=b_p23,
)
del ContainerA.p13
del ContainerB.p23
assert ContainerA.providers == dict(p11=ContainerA.p11, p12=ContainerA.p12)
assert ContainerB.providers == dict(
p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
)
assert ContainerA.cls_providers == dict(p11=ContainerA.p11, p12=ContainerA.p12)
assert ContainerB.cls_providers == dict(p21=ContainerB.p21, p22=ContainerB.p22)
def test_declare_with_valid_provider_type():
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
px = providers.Object(object())
assert isinstance(_Container.px, providers.Object)
def test_declare_with_invalid_provider_type():
with raises(errors.Error):
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
px = providers.Provider()
def test_seth_valid_provider_type():
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
_Container.px = providers.Object(object())
assert isinstance(_Container.px, providers.Object)
def test_set_invalid_provider_type():
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
with raises(errors.Error):
_Container.px = providers.Provider()
def test_override():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
assert _Container.overridden == (_OverridingContainer1, _OverridingContainer2)
assert _Container.p11.overridden == (_OverridingContainer1.p11, _OverridingContainer2.p11)
def test_override_with_it():
with raises(errors.Error):
ContainerA.override(ContainerA)
def test_override_with_parent():
with raises(errors.Error):
ContainerB.override(ContainerA)
def test_override_decorator():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
@containers.override(_Container)
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
@containers.override(_Container)
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
assert _Container.overridden == (_OverridingContainer1, _OverridingContainer2)
assert _Container.p11.overridden == (_OverridingContainer1.p11, _OverridingContainer2.p11)
def test_reset_last_overriding():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
_Container.reset_last_overriding()
assert _Container.overridden == (_OverridingContainer1,)
assert _Container.p11.overridden == (_OverridingContainer1.p11,)
def test_reset_last_overriding_when_not_overridden():
with raises(errors.Error):
ContainerA.reset_last_overriding()
def test_reset_override():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
_Container.reset_override()
assert _Container.overridden == tuple()
assert _Container.p11.overridden == tuple()
def test_copy():
@containers.copy(ContainerA)
class _Container1(ContainerA):
pass
@containers.copy(ContainerA)
class _Container2(ContainerA):
pass
assert ContainerA.p11 is not _Container1.p11
assert ContainerA.p12 is not _Container1.p12
assert ContainerA.p11 is not _Container2.p11
assert ContainerA.p12 is not _Container2.p12
assert _Container1.p11 is not _Container2.p11
assert _Container1.p12 is not _Container2.p12
def test_copy_with_replacing():
class _Container(containers.DeclarativeContainer):
p11 = providers.Object(0)
p12 = providers.Factory(dict, p11=p11)
@containers.copy(_Container)
class _Container1(_Container):
p11 = providers.Object(1)
p13 = providers.Object(11)
@containers.copy(_Container)
class _Container2(_Container):
p11 = providers.Object(2)
p13 = providers.Object(22)
assert _Container.p11 is not _Container1.p11
assert _Container.p12 is not _Container1.p12
assert _Container.p11 is not _Container2.p11
assert _Container.p12 is not _Container2.p12
assert _Container1.p11 is not _Container2.p11
assert _Container1.p12 is not _Container2.p12
assert _Container.p12() == {"p11": 0}
assert _Container1.p12() == {"p11": 1}
assert _Container2.p12() == {"p11": 2}
assert _Container1.p13() == 11
assert _Container2.p13() == 22
def test_copy_with_parent_dependency():
# See: https://github.com/ets-labs/python-dependency-injector/issues/477
class Base(containers.DeclarativeContainer):
p11 = providers.Object(0)
p12 = providers.Factory(dict, p11=p11)
@containers.copy(Base)
class New(Base):
p13 = providers.Factory(dict, p12=Base.p12)
new1 = New()
new2 = New(p11=1)
new3 = New(p11=2)
assert new1.p13() == {"p12": {"p11": 0}}
assert new2.p13() == {"p12": {"p11": 1}}
assert new3.p13() == {"p12": {"p11": 2}}
def test_copy_with_replacing_subcontainer_providers():
# See: https://github.com/ets-labs/python-dependency-injector/issues/374
class X(containers.DeclarativeContainer):
foo = providers.Dependency(instance_of=str)
def build_x():
return X(foo="1")
class A(containers.DeclarativeContainer):
x = providers.DependenciesContainer(**X.providers)
y = x.foo
@containers.copy(A)
class B1(A):
x = providers.Container(build_x)
b1 = B1()
assert b1.y() == "1"
def test_containers_attribute():
class Container(containers.DeclarativeContainer):
class Container1(containers.DeclarativeContainer):
pass
class Container2(containers.DeclarativeContainer):
pass
Container3 = containers.DynamicContainer()
assert Container.containers == dict(
Container1=Container.Container1,
Container2=Container.Container2,
Container3=Container.Container3,
)
def test_init_with_overriding_providers():
p1 = providers.Provider()
p2 = providers.Provider()
container = ContainerA(p11=p1, p12=p2)
assert container.p11.last_overriding is p1
assert container.p12.last_overriding is p2
def test_init_with_overridden_dependency():
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/198
class _Container(containers.DeclarativeContainer):
p1 = providers.Dependency(instance_of=int)
p2 = providers.Dependency(object)
p2.override(providers.Factory(dict, p1=p1))
container = _Container(p1=1)
assert container.p2() == {"p1": 1}
assert container.p2.last_overriding.kwargs["p1"] is container.p1
assert container.p2.last_overriding.kwargs["p1"] is not _Container.p1
assert _Container.p2.last_overriding.kwargs["p1"] is _Container.p1
def test_init_with_chained_dependency():
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/200
class _Container(containers.DeclarativeContainer):
p1 = providers.Dependency(instance_of=int)
p2 = providers.Factory(p1)
container = _Container(p1=1)
assert container.p2() == 1
assert container.p2.cls is container.p1
assert _Container.p2.cls is _Container.p1
assert container.p2.cls is not _Container.p1
def test_init_with_dependency_delegation():
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/235
A = collections.namedtuple("A", [])
B = collections.namedtuple("B", ["fa"])
C = collections.namedtuple("B", ["a"])
class Services(containers.DeclarativeContainer):
a = providers.Dependency()
c = providers.Factory(C, a=a)
b = providers.Factory(B, fa=a.provider)
a = providers.Factory(A)
assert isinstance(Services(a=a).c().a, A) # OK
Services(a=a).b().fa()
def test_init_with_grand_child_provider():
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/350
provider = providers.Provider()
container = ContainerC(p11=provider)
assert isinstance(container.p11, providers.Provider)
assert isinstance(container.p12, providers.Provider)
assert isinstance(container.p21, providers.Provider)
assert isinstance(container.p22, providers.Provider)
assert isinstance(container.p31, providers.Provider)
assert isinstance(container.p32, providers.Provider)
assert container.p11.last_overriding is provider
def test_parent_set_in__new__():
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
dependencies_container = providers.DependenciesContainer()
container = providers.Container(ContainerA)
assert Container.dependency.parent is Container
assert Container.dependencies_container.parent is Container
assert Container.container.parent is Container
def test_parent_set_in__setattr__():
class Container(containers.DeclarativeContainer):
pass
Container.dependency = providers.Dependency()
Container.dependencies_container = providers.DependenciesContainer()
Container.container = providers.Container(ContainerA)
assert Container.dependency.parent is Container
assert Container.dependencies_container.parent is Container
assert Container.container.parent is Container
def test_resolve_provider_name():
assert ContainerA.resolve_provider_name(ContainerA.p11) == "p11"
def test_resolve_provider_name_no_provider():
with raises(errors.Error):
ContainerA.resolve_provider_name(providers.Provider())
def test_child_dependency_parent_name():
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
with raises(errors.Error, match="Dependency \"Container.dependency\" is not defined"):
Container.dependency()
def test_child_dependencies_container_parent_name():
class Container(containers.DeclarativeContainer):
dependencies_container = providers.DependenciesContainer()
with raises(errors.Error, match="Dependency \"Container.dependencies_container.dependency\" is not defined"):
Container.dependencies_container.dependency()
def test_child_container_parent_name():
class ChildContainer(containers.DeclarativeContainer):
dependency = providers.Dependency()
class Container(containers.DeclarativeContainer):
child_container = providers.Container(ChildContainer)
with raises(errors.Error, match="Dependency \"Container.child_container.dependency\" is not defined"):
Container.child_container.dependency()

1
tests/unit/containers/instance/__init__.py Normal file
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@ -0,0 +1 @@
"""Container instance tests."""

147
tests/unit/containers/instance/test_async_resources_py36.py Normal file
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@ -0,0 +1,147 @@
"""Tests for container async resources."""
import asyncio
from dependency_injector import containers, providers
from pytest import mark, raises
@mark.asyncio
async def test_init_and_shutdown_ordering():
"""Test init and shutdown resources.
Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
Initialization should first initialize resources without dependencies and then provide
these resources to other resources. Resources shutdown should follow the same rule: first
shutdown resources without initialized dependencies and then continue correspondingly
until all resources are shutdown.
"""
initialized_resources = []
shutdown_resources = []
async def _resource(name, delay, **_):
await asyncio.sleep(delay)
initialized_resources.append(name)
yield name
await asyncio.sleep(delay)
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
delay=0.03,
)
resource2 = providers.Resource(
_resource,
name="r2",
delay=0.02,
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
delay=0.01,
r2=resource2,
)
container = Container()
await container.init_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == []
await container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
await container.init_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
await container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1", "r3", "r2", "r1"]
@mark.asyncio
async def test_shutdown_circular_dependencies_breaker():
async def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
await container.init_resources()
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with raises(RuntimeError, match="Unable to resolve resources shutdown order"):
await container.shutdown_resources()
@mark.asyncio
async def test_shutdown_sync_and_async_ordering():
initialized_resources = []
shutdown_resources = []
def _sync_resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
async def _async_resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_sync_resource,
name="r1",
)
resource2 = providers.Resource(
_sync_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_async_resource,
name="r3",
r2=resource2,
)
container = Container()
await container.init_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == []
await container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
await container.init_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
await container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1", "r3", "r2", "r1"]

47
tests/unit/containers/instance/test_custom_strings_py2_py3.py Normal file
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@ -0,0 +1,47 @@
"""Tests for container with custom string classes as attribute names.
See: https://github.com/ets-labs/python-dependency-injector/issues/479
"""
from dependency_injector import containers, providers
from pytest import fixture, raises
class CustomString(str):
pass
class CustomClass:
thing = None
@fixture
def container():
return containers.DynamicContainer()
@fixture
def provider():
return providers.Provider()
def test_setattr(container, provider):
setattr(container, CustomString("test_attr"), provider)
assert container.test_attr is provider
def test_delattr(container, provider):
setattr(container, CustomString("test_attr"), provider)
delattr(container, CustomString("test_attr"))
with raises(AttributeError):
container.test_attr
def test_set_provider(container, provider):
container.set_provider(CustomString("test_attr"), provider)
assert container.test_attr is provider
def test_set_providers(container, provider):
container.set_providers(**{CustomString("test_attr"): provider})
assert container.test_attr is provider

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"""Main container instance tests."""
from dependency_injector import containers, providers, errors
from pytest import raises
class Container(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
def test_providers_attribute():
container_1 = Container()
container_2 = Container()
assert container_1.p11 is not container_2.p11
assert container_1.p12 is not container_2.p12
assert container_1.providers != container_2.providers
def test_dependencies_attribute():
container = Container()
container.a1 = providers.Dependency()
container.a2 = providers.DependenciesContainer()
assert container.dependencies == {"a1": container.a1, "a2": container.a2}
def test_set_get_del_providers():
p13 = providers.Provider()
container_1 = Container()
container_2 = Container()
container_1.p13 = p13
container_2.p13 = p13
assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
assert Container.cls_providers, dict(p11=Container.p11, p12=Container.p12)
assert container_1.providers == dict(p11=container_1.p11, p12=container_1.p12, p13=p13)
assert container_2.providers == dict(p11=container_2.p11, p12=container_2.p12, p13=p13)
del container_1.p13
assert container_1.providers == dict(p11=container_1.p11, p12=container_1.p12)
del container_2.p13
assert container_2.providers == dict(p11=container_2.p11, p12=container_2.p12)
del container_1.p11
del container_1.p12
assert container_1.providers == dict()
assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
del container_2.p11
del container_2.p12
assert container_2.providers == dict()
assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
def test_set_invalid_provider_type():
container = Container()
container.provider_type = providers.Object
with raises(errors.Error):
container.px = providers.Provider()
assert Container.provider_type is containers.DeclarativeContainer.provider_type
def test_set_providers():
p13 = providers.Provider()
p14 = providers.Provider()
container = Container()
container.set_providers(p13=p13, p14=p14)
assert container.p13 is p13
assert container.p14 is p14
def test_override():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
assert container.overridden == (overriding_container1, overriding_container2)
assert container.p11.overridden == (overriding_container1.p11, overriding_container2.p11)
assert _Container.overridden == tuple()
assert _Container.p11.overridden == tuple()
def test_override_with_it():
container = Container()
with raises(errors.Error):
container.override(container)
def test_override_providers():
p1 = providers.Provider()
p2 = providers.Provider()
container = Container()
container.override_providers(p11=p1, p12=p2)
assert container.p11.last_overriding is p1
assert container.p12.last_overriding is p2
def test_override_providers_context_manager():
p1 = providers.Provider()
p2 = providers.Provider()
container = Container()
with container.override_providers(p11=p1, p12=p2) as context_container:
assert container is context_container
assert container.p11.last_overriding is p1
assert container.p12.last_overriding is p2
assert container.p11.last_overriding is None
assert container.p12.last_overriding is None
def test_override_providers_with_unknown_provider():
container = Container()
with raises(AttributeError):
container.override_providers(unknown=providers.Provider())
def test_reset_last_overriding():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
container.reset_last_overriding()
assert container.overridden == (overriding_container1,)
assert container.p11.overridden, (overriding_container1.p11,)
def test_reset_last_overriding_when_not_overridden():
container = Container()
with raises(errors.Error):
container.reset_last_overriding()
def test_reset_override():
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
container.reset_override()
assert container.overridden == tuple()
assert container.p11.overridden == tuple()
def test_init_and_shutdown_resources_ordering():
"""Test init and shutdown resources.
Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
Initialization should first initialize resources without dependencies and then provide
these resources to other resources. Resources shutdown should follow the same rule: first
shutdown resources without initialized dependencies and then continue correspondingly
until all resources are shutdown.
"""
initialized_resources = []
shutdown_resources = []
def _resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
container.init_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == []
container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
container.init_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1"]
container.shutdown_resources()
assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
assert shutdown_resources == ["r3", "r2", "r1", "r3", "r2", "r1"]
def test_shutdown_resources_circular_dependencies_breaker():
def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
container.init_resources()
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with raises(RuntimeError, match="Unable to resolve resources shutdown order"):
container.shutdown_resources()
def test_init_shutdown_nested_resources():
def _init1():
_init1.init_counter += 1
yield
_init1.shutdown_counter += 1
_init1.init_counter = 0
_init1.shutdown_counter = 0
def _init2():
_init2.init_counter += 1
yield
_init2.shutdown_counter += 1
_init2.init_counter = 0
_init2.shutdown_counter = 0
class Container(containers.DeclarativeContainer):
service = providers.Factory(
dict,
resource1=providers.Resource(_init1),
resource2=providers.Resource(_init2),
)
container = Container()
assert _init1.init_counter == 0
assert _init1.shutdown_counter == 0
assert _init2.init_counter == 0
assert _init2.shutdown_counter == 0
container.init_resources()
assert _init1.init_counter == 1
assert _init1.shutdown_counter == 0
assert _init2.init_counter == 1
assert _init2.shutdown_counter == 0
container.shutdown_resources()
assert _init1.init_counter == 1
assert _init1.shutdown_counter == 1
assert _init2.init_counter == 1
assert _init2.shutdown_counter == 1
container.init_resources()
container.shutdown_resources()
assert _init1.init_counter == 2
assert _init1.shutdown_counter == 2
assert _init2.init_counter == 2
assert _init2.shutdown_counter == 2
def test_reset_singletons():
class SubSubContainer(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
class SubContainer(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
sub_sub_container = providers.Container(SubSubContainer)
class Container(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
sub_container = providers.Container(SubContainer)
container = Container()
obj11 = container.singleton()
obj12 = container.sub_container().singleton()
obj13 = container.sub_container().sub_sub_container().singleton()
obj21 = container.singleton()
obj22 = container.sub_container().singleton()
obj23 = container.sub_container().sub_sub_container().singleton()
assert obj11 is obj21
assert obj12 is obj22
assert obj13 is obj23
container.reset_singletons()
obj31 = container.singleton()
obj32 = container.sub_container().singleton()
obj33 = container.sub_container().sub_sub_container().singleton()
obj41 = container.singleton()
obj42 = container.sub_container().singleton()
obj43 = container.sub_container().sub_sub_container().singleton()
assert obj11 is not obj31
assert obj12 is not obj32
assert obj13 is not obj33
assert obj21 is not obj31
assert obj22 is not obj32
assert obj23 is not obj33
assert obj31 is obj41
assert obj32 is obj42
assert obj33 is obj43
def test_reset_singletons_context_manager():
class Item:
def __init__(self, dependency):
self.dependency = dependency
class Container(containers.DeclarativeContainer):
dependent = providers.Singleton(object)
singleton = providers.Singleton(Item, dependency=dependent)
container = Container()
instance1 = container.singleton()
with container.reset_singletons():
instance2 = container.singleton()
instance3 = container.singleton()
assert len({instance1, instance2, instance3}) == 3
assert len({instance1.dependency, instance2.dependency, instance3.dependency}) == 3
def test_reset_singletons_context_manager_as_attribute():
container = containers.DeclarativeContainer()
with container.reset_singletons() as alias:
pass
assert container is alias
def test_check_dependencies():
class SubContainer(containers.DeclarativeContainer):
dependency = providers.Dependency()
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
dependencies_container = providers.DependenciesContainer()
provider = providers.List(dependencies_container.dependency)
sub_container = providers.Container(SubContainer)
container = Container()
with raises(errors.Error) as exception_info:
container.check_dependencies()
assert "Container \"Container\" has undefined dependencies:" in str(exception_info.value)
assert "\"Container.dependency\"" in str(exception_info.value)
assert "\"Container.dependencies_container.dependency\"" in str(exception_info.value)
assert "\"Container.sub_container.dependency\"" in str(exception_info.value)
def test_check_dependencies_all_defined():
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
container = Container(dependency="provided")
result = container.check_dependencies()
assert result is None
def test_assign_parent():
parent = providers.DependenciesContainer()
container = Container()
container.assign_parent(parent)
assert container.parent is parent
def test_parent_name_declarative_parent():
container = Container()
assert container.parent_name == "Container"
def test_parent_name():
container = Container()
assert container.parent_name == "Container"
def test_parent_name_with_deep_parenting():
class Container2(containers.DeclarativeContainer):
name = providers.Container(Container)
class Container1(containers.DeclarativeContainer):
container = providers.Container(Container2)
container = Container1()
assert container.container().name.parent_name == "Container1.container.name"
def test_parent_name_is_none():
container = containers.DynamicContainer()
assert container.parent_name is None
def test_parent_deepcopy():
class ParentContainer(containers.DeclarativeContainer):
child = providers.Container(Container)
container = ParentContainer()
copied = providers.deepcopy(container)
assert container.child.parent is container
assert copied.child.parent is copied
assert container is not copied
assert container.child is not copied.child
assert container.child.parent is not copied.child.parent
def test_resolve_provider_name():
container = Container()
assert container.resolve_provider_name(container.p11) == "p11"
def test_resolve_provider_name_no_provider():
container = Container()
with raises(errors.Error):
container.resolve_provider_name(providers.Provider())

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"""Tests for container self provier."""
from dependency_injector import containers, providers, errors
from pytest import raises
def test_self():
def call_bar(container):
return container.bar()
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
container = Container()
assert container.foo() is "hello"
def test_self_attribute_implicit():
class Container(containers.DeclarativeContainer):
pass
container = Container()
assert container.__self__() is container
def test_self_attribute_explicit():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container = Container()
assert container.__self__() is container
def test_single_self():
with raises(errors.Error):
class Container(containers.DeclarativeContainer):
self1 = providers.Self()
self2 = providers.Self()
def test_self_attribute_alt_name_implicit():
class Container(containers.DeclarativeContainer):
foo = providers.Self()
container = Container()
assert container.__self__ is container.foo
assert set(container.__self__.alt_names) == {"foo"}
def test_self_attribute_alt_name_explicit_1():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = __self__
container = Container()
assert container.__self__ is container.foo
assert container.__self__ is container.bar
assert set(container.__self__.alt_names) == {"foo", "bar"}
def test_self_attribute_alt_name_explicit_2():
class Container(containers.DeclarativeContainer):
foo = providers.Self()
bar = foo
container = Container()
assert container.__self__ is container.foo
assert container.__self__ is container.bar
assert set(container.__self__.alt_names) == {"foo", "bar"}
def test_providers_attribute_1():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = __self__
container = Container()
assert container.providers == {}
assert Container.providers == {}
def test_providers_attribute_2():
class Container(containers.DeclarativeContainer):
foo = providers.Self()
bar = foo
container = Container()
assert container.providers == {}
assert Container.providers == {}
def test_container_multiple_instances():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container1 = Container()
container2 = Container()
assert container1 is not container2
assert container1.__self__() is container1
assert container2.__self__() is container2
def test_deepcopy():
def call_bar(container):
return container.bar()
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
container1 = Container()
container2 = providers.deepcopy(container1)
container1.bar.override("bye")
assert container1.foo() == "bye"
assert container2.foo() == "hello"
def test_deepcopy_alt_names_1():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = foo
container1 = Container()
container2 = providers.deepcopy(container1)
assert container2.__self__() is container2
assert container2.foo() is container2
assert container2.bar() is container2
def test_deepcopy_alt_names_2():
class Container(containers.DeclarativeContainer):
self = providers.Self()
container1 = Container()
container2 = providers.deepcopy(container1)
assert container2.__self__() is container2
assert container2.self() is container2
def test_deepcopy_no_self_dependencies():
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container1 = Container()
container2 = providers.deepcopy(container1)
assert container1 is not container2
assert container1.__self__ is not container2.__self__
assert container1.__self__() is container1
assert container2.__self__() is container2
def test_with_container_provider():
def call_bar(container):
return container.bar()
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer)
baz = providers.Callable(lambda value: value, sub_container.foo)
container = Container()
assert container.baz() == "hello"
def test_with_container_provider_overriding():
def call_bar(container):
return container.bar()
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer, bar="bye")
baz = providers.Callable(lambda value: value, sub_container.foo)
container = Container()
assert container.baz() == "bye"
def test_with_container_provider_self():
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer)
container = Container()
assert container.__self__() is container
assert container.sub_container().__self__() is container.sub_container()

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tests/unit/containers/test_declarative_py2_py3.py
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@ -1,539 +0,0 @@
"""Dependency injector declarative container unit tests."""
import collections
import unittest
from dependency_injector import (
containers,
providers,
errors,
)
class ContainerA(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
class ContainerB(ContainerA):
p21 = providers.Provider()
p22 = providers.Provider()
class ContainerC(ContainerB):
p31 = providers.Provider()
p32 = providers.Provider()
class DeclarativeContainerTests(unittest.TestCase):
def test_providers_attribute(self):
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22))
self.assertEqual(ContainerC.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
p31=ContainerC.p31,
p32=ContainerC.p32))
def test_providers_attribute_with_redefinition(self):
p1 = providers.Provider()
p2 = providers.Provider()
class ContainerA2(ContainerA):
p11 = p1
p12 = p2
self.assertEqual(
ContainerA.providers,
{
"p11": ContainerA.p11,
"p12": ContainerA.p12,
},
)
self.assertEqual(
ContainerA2.providers,
{
"p11": p1,
"p12": p2,
},
)
def test_cls_providers_attribute(self):
self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
p22=ContainerB.p22))
self.assertEqual(ContainerC.cls_providers, dict(p31=ContainerC.p31,
p32=ContainerC.p32))
def test_inherited_providers_attribute(self):
self.assertEqual(ContainerA.inherited_providers, dict())
self.assertEqual(ContainerB.inherited_providers,
dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerC.inherited_providers,
dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22))
def test_dependencies_attribute(self):
class ContainerD(ContainerC):
p41 = providers.Dependency()
p42 = providers.DependenciesContainer()
class ContainerE(ContainerD):
p51 = providers.Dependency()
p52 = providers.DependenciesContainer()
self.assertEqual(
ContainerD.dependencies,
{
"p41": ContainerD.p41,
"p42": ContainerD.p42,
},
)
self.assertEqual(
ContainerE.dependencies,
{
"p41": ContainerD.p41,
"p42": ContainerD.p42,
"p51": ContainerE.p51,
"p52": ContainerE.p52,
},
)
def test_set_get_del_providers(self):
a_p13 = providers.Provider()
b_p23 = providers.Provider()
ContainerA.p13 = a_p13
ContainerB.p23 = b_p23
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p13=a_p13))
self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22,
p23=b_p23))
self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p13=a_p13))
self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
p22=ContainerB.p22,
p23=b_p23))
del ContainerA.p13
del ContainerB.p23
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12,
p21=ContainerB.p21,
p22=ContainerB.p22))
self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
p22=ContainerB.p22))
def test_declare_with_valid_provider_type(self):
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
px = providers.Object(object())
self.assertIsInstance(_Container.px, providers.Object)
def test_declare_with_invalid_provider_type(self):
with self.assertRaises(errors.Error):
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
px = providers.Provider()
def test_seth_valid_provider_type(self):
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
_Container.px = providers.Object(object())
self.assertIsInstance(_Container.px, providers.Object)
def test_set_invalid_provider_type(self):
class _Container(containers.DeclarativeContainer):
provider_type = providers.Object
with self.assertRaises(errors.Error):
_Container.px = providers.Provider()
def test_override(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
self.assertEqual(_Container.overridden,
(_OverridingContainer1,
_OverridingContainer2))
self.assertEqual(_Container.p11.overridden,
(_OverridingContainer1.p11,
_OverridingContainer2.p11))
def test_override_with_itself(self):
with self.assertRaises(errors.Error):
ContainerA.override(ContainerA)
def test_override_with_parent(self):
with self.assertRaises(errors.Error):
ContainerB.override(ContainerA)
def test_override_decorator(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
@containers.override(_Container)
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
@containers.override(_Container)
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
self.assertEqual(_Container.overridden,
(_OverridingContainer1,
_OverridingContainer2))
self.assertEqual(_Container.p11.overridden,
(_OverridingContainer1.p11,
_OverridingContainer2.p11))
def test_reset_last_overriding(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
_Container.reset_last_overriding()
self.assertEqual(_Container.overridden,
(_OverridingContainer1,))
self.assertEqual(_Container.p11.overridden,
(_OverridingContainer1.p11,))
def test_reset_last_overriding_when_not_overridden(self):
with self.assertRaises(errors.Error):
ContainerA.reset_last_overriding()
def test_reset_override(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
_Container.override(_OverridingContainer1)
_Container.override(_OverridingContainer2)
_Container.reset_override()
self.assertEqual(_Container.overridden, tuple())
self.assertEqual(_Container.p11.overridden, tuple())
def test_copy(self):
@containers.copy(ContainerA)
class _Container1(ContainerA):
pass
@containers.copy(ContainerA)
class _Container2(ContainerA):
pass
self.assertIsNot(ContainerA.p11, _Container1.p11)
self.assertIsNot(ContainerA.p12, _Container1.p12)
self.assertIsNot(ContainerA.p11, _Container2.p11)
self.assertIsNot(ContainerA.p12, _Container2.p12)
self.assertIsNot(_Container1.p11, _Container2.p11)
self.assertIsNot(_Container1.p12, _Container2.p12)
def test_copy_with_replacing(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Object(0)
p12 = providers.Factory(dict, p11=p11)
@containers.copy(_Container)
class _Container1(_Container):
p11 = providers.Object(1)
p13 = providers.Object(11)
@containers.copy(_Container)
class _Container2(_Container):
p11 = providers.Object(2)
p13 = providers.Object(22)
self.assertIsNot(_Container.p11, _Container1.p11)
self.assertIsNot(_Container.p12, _Container1.p12)
self.assertIsNot(_Container.p11, _Container2.p11)
self.assertIsNot(_Container.p12, _Container2.p12)
self.assertIsNot(_Container1.p11, _Container2.p11)
self.assertIsNot(_Container1.p12, _Container2.p12)
self.assertEqual(_Container.p12(), {"p11": 0})
self.assertEqual(_Container1.p12(), {"p11": 1})
self.assertEqual(_Container2.p12(), {"p11": 2})
self.assertEqual(_Container1.p13(), 11)
self.assertEqual(_Container2.p13(), 22)
def test_copy_with_parent_dependency(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/477
class Base(containers.DeclarativeContainer):
p11 = providers.Object(0)
p12 = providers.Factory(dict, p11=p11)
@containers.copy(Base)
class New(Base):
p13 = providers.Factory(dict, p12=Base.p12)
new1 = New()
new2 = New(p11=1)
new3 = New(p11=2)
self.assertEqual(new1.p13(), {"p12": {"p11": 0}})
self.assertEqual(new2.p13(), {"p12": {"p11": 1}})
self.assertEqual(new3.p13(), {"p12": {"p11": 2}})
def test_copy_with_replacing_subcontainer_providers(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/374
class X(containers.DeclarativeContainer):
foo = providers.Dependency(instance_of=str)
def build_x():
return X(foo="1")
class A(containers.DeclarativeContainer):
x = providers.DependenciesContainer(**X.providers)
y = x.foo
@containers.copy(A)
class B1(A):
x = providers.Container(build_x)
b1 = B1()
self.assertEqual(b1.y(), "1")
def test_containers_attribute(self):
class Container(containers.DeclarativeContainer):
class Container1(containers.DeclarativeContainer):
pass
class Container2(containers.DeclarativeContainer):
pass
Container3 = containers.DynamicContainer()
self.assertEqual(Container.containers,
dict(Container1=Container.Container1,
Container2=Container.Container2,
Container3=Container.Container3))
def test_init_with_overriding_providers(self):
p1 = providers.Provider()
p2 = providers.Provider()
container = ContainerA(p11=p1, p12=p2)
self.assertIs(container.p11.last_overriding, p1)
self.assertIs(container.p12.last_overriding, p2)
def test_init_with_overridden_dependency(self):
# Bug:
# https://github.com/ets-labs/python-dependency-injector/issues/198
class _Container(containers.DeclarativeContainer):
p1 = providers.Dependency(instance_of=int)
p2 = providers.Dependency(object)
p2.override(providers.Factory(dict, p1=p1))
container = _Container(p1=1)
self.assertEqual(container.p2(), {"p1": 1})
self.assertIs(
container.p2.last_overriding.kwargs["p1"],
container.p1,
)
self.assertIsNot(
container.p2.last_overriding.kwargs["p1"],
_Container.p1,
)
self.assertIs(
_Container.p2.last_overriding.kwargs["p1"],
_Container.p1,
)
def test_init_with_chained_dependency(self):
# Bug:
# https://github.com/ets-labs/python-dependency-injector/issues/200
class _Container(containers.DeclarativeContainer):
p1 = providers.Dependency(instance_of=int)
p2 = providers.Factory(p1)
container = _Container(p1=1)
self.assertEqual(container.p2(), 1)
self.assertIs(container.p2.cls, container.p1)
self.assertIs(_Container.p2.cls, _Container.p1)
self.assertIsNot(container.p2.cls, _Container.p1)
def test_init_with_dependency_delegation(self):
# Bug:
# https://github.com/ets-labs/python-dependency-injector/issues/235
A = collections.namedtuple("A", [])
B = collections.namedtuple("B", ["fa"])
C = collections.namedtuple("B", ["a"])
class Services(containers.DeclarativeContainer):
a = providers.Dependency()
c = providers.Factory(C, a=a)
b = providers.Factory(B, fa=a.provider)
a = providers.Factory(A)
assert isinstance(Services(a=a).c().a, A) # ok
Services(a=a).b().fa()
def test_init_with_grand_child_provider(self):
# Bug:
# https://github.com/ets-labs/python-dependency-injector/issues/350
provider = providers.Provider()
container = ContainerC(p11=provider)
self.assertIsInstance(container.p11, providers.Provider)
self.assertIsInstance(container.p12, providers.Provider)
self.assertIsInstance(container.p21, providers.Provider)
self.assertIsInstance(container.p22, providers.Provider)
self.assertIsInstance(container.p31, providers.Provider)
self.assertIsInstance(container.p32, providers.Provider)
self.assertIs(container.p11.last_overriding, provider)
def test_parent_set_in__new__(self):
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
dependencies_container = providers.DependenciesContainer()
container = providers.Container(ContainerA)
self.assertIs(Container.dependency.parent, Container)
self.assertIs(Container.dependencies_container.parent, Container)
self.assertIs(Container.container.parent, Container)
def test_parent_set_in__setattr__(self):
class Container(containers.DeclarativeContainer):
pass
Container.dependency = providers.Dependency()
Container.dependencies_container = providers.DependenciesContainer()
Container.container = providers.Container(ContainerA)
self.assertIs(Container.dependency.parent, Container)
self.assertIs(Container.dependencies_container.parent, Container)
self.assertIs(Container.container.parent, Container)
def test_resolve_provider_name(self):
self.assertEqual(ContainerA.resolve_provider_name(ContainerA.p11), "p11")
def test_resolve_provider_name_no_provider(self):
with self.assertRaises(errors.Error):
ContainerA.resolve_provider_name(providers.Provider())
def test_child_dependency_parent_name(self):
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
with self.assertRaises(errors.Error) as context:
Container.dependency()
self.assertEqual(
str(context.exception),
"Dependency \"Container.dependency\" is not defined",
)
def test_child_dependencies_container_parent_name(self):
class Container(containers.DeclarativeContainer):
dependencies_container = providers.DependenciesContainer()
with self.assertRaises(errors.Error) as context:
Container.dependencies_container.dependency()
self.assertEqual(
str(context.exception),
"Dependency \"Container.dependencies_container.dependency\" is not defined",
)
def test_child_container_parent_name(self):
class ChildContainer(containers.DeclarativeContainer):
dependency = providers.Dependency()
class Container(containers.DeclarativeContainer):
child_container = providers.Container(ChildContainer)
with self.assertRaises(errors.Error) as context:
Container.child_container.dependency()
self.assertEqual(
str(context.exception),
"Dependency \"Container.child_container.dependency\" is not defined",
)
class DeclarativeContainerWithCustomStringTests(unittest.TestCase):
# See: https://github.com/ets-labs/python-dependency-injector/issues/479
class CustomString(str):
pass
class CustomClass:
thing = None
class CustomContainer(containers.DeclarativeContainer):
pass
def setUp(self):
self.container = self.CustomContainer
self.provider = providers.Provider()
def test_setattr(self):
setattr(self.container, self.CustomString("test_attr"), self.provider)
self.assertIs(self.container.test_attr, self.provider)
def test_delattr(self):
setattr(self.container, self.CustomString("test_attr"), self.provider)
delattr(self.container, self.CustomString("test_attr"))
with self.assertRaises(AttributeError):
self.container.test_attr

159
tests/unit/containers/test_dynamic_async_resources_py36.py
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@ -1,159 +0,0 @@
"""Dependency injector dynamic container unit tests for async resources."""
import asyncio
# Runtime import to get asyncutils module
import os
_TOP_DIR = os.path.abspath(
os.path.sep.join((
os.path.dirname(__file__),
"../",
)),
)
import sys
sys.path.append(_TOP_DIR)
from asyncutils import AsyncTestCase
from dependency_injector import (
containers,
providers,
)
class AsyncResourcesTest(AsyncTestCase):
def test_init_and_shutdown_ordering(self):
"""Test init and shutdown resources.
Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
Initialization should first initialize resources without dependencies and then provide
these resources to other resources. Resources shutdown should follow the same rule: first
shutdown resources without initialized dependencies and then continue correspondingly
until all resources are shutdown.
"""
initialized_resources = []
shutdown_resources = []
async def _resource(name, delay, **_):
await asyncio.sleep(delay)
initialized_resources.append(name)
yield name
await asyncio.sleep(delay)
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
delay=0.03,
)
resource2 = providers.Resource(
_resource,
name="r2",
delay=0.02,
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
delay=0.01,
r2=resource2,
)
container = Container()
self._run(container.init_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, [])
self._run(container.shutdown_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
self._run(container.init_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
self._run(container.shutdown_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1", "r3", "r2", "r1"])
def test_shutdown_circular_dependencies_breaker(self):
async def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
self._run(container.init_resources())
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with self.assertRaises(RuntimeError) as context:
self._run(container.shutdown_resources())
self.assertEqual(str(context.exception), "Unable to resolve resources shutdown order")
def test_shutdown_sync_and_async_ordering(self):
initialized_resources = []
shutdown_resources = []
def _sync_resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
async def _async_resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_sync_resource,
name="r1",
)
resource2 = providers.Resource(
_sync_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_async_resource,
name="r3",
r2=resource2,
)
container = Container()
self._run(container.init_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, [])
self._run(container.shutdown_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
self._run(container.init_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
self._run(container.shutdown_resources())
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1", "r3", "r2", "r1"])

733
tests/unit/containers/test_dynamic_py2_py3.py
View File

@ -1,733 +0,0 @@
"""Dependency injector dynamic container unit tests."""
import unittest
from dependency_injector import (
containers,
providers,
errors,
)
class ContainerA(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
class DeclarativeContainerInstanceTests(unittest.TestCase):
def test_providers_attribute(self):
container_a1 = ContainerA()
container_a2 = ContainerA()
self.assertIsNot(container_a1.p11, container_a2.p11)
self.assertIsNot(container_a1.p12, container_a2.p12)
self.assertNotEqual(container_a1.providers, container_a2.providers)
def test_dependencies_attribute(self):
container = ContainerA()
container.a1 = providers.Dependency()
container.a2 = providers.DependenciesContainer()
self.assertEqual(container.dependencies, {"a1": container.a1, "a2": container.a2})
def test_set_get_del_providers(self):
p13 = providers.Provider()
container_a1 = ContainerA()
container_a2 = ContainerA()
container_a1.p13 = p13
container_a2.p13 = p13
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
p12=container_a1.p12,
p13=p13))
self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
p12=container_a2.p12,
p13=p13))
del container_a1.p13
self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
p12=container_a1.p12))
del container_a2.p13
self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
p12=container_a2.p12))
del container_a1.p11
del container_a1.p12
self.assertEqual(container_a1.providers, dict())
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
del container_a2.p11
del container_a2.p12
self.assertEqual(container_a2.providers, dict())
self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
p12=ContainerA.p12))
def test_set_invalid_provider_type(self):
container_a = ContainerA()
container_a.provider_type = providers.Object
with self.assertRaises(errors.Error):
container_a.px = providers.Provider()
self.assertIs(ContainerA.provider_type,
containers.DeclarativeContainer.provider_type)
def test_set_providers(self):
p13 = providers.Provider()
p14 = providers.Provider()
container_a = ContainerA()
container_a.set_providers(p13=p13, p14=p14)
self.assertIs(container_a.p13, p13)
self.assertIs(container_a.p14, p14)
def test_override(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
self.assertEqual(container.overridden,
(overriding_container1,
overriding_container2))
self.assertEqual(container.p11.overridden,
(overriding_container1.p11,
overriding_container2.p11))
self.assertEqual(_Container.overridden, tuple())
self.assertEqual(_Container.p11.overridden, tuple())
def test_override_with_itself(self):
container = ContainerA()
with self.assertRaises(errors.Error):
container.override(container)
def test_override_providers(self):
p1 = providers.Provider()
p2 = providers.Provider()
container_a = ContainerA()
container_a.override_providers(p11=p1, p12=p2)
self.assertIs(container_a.p11.last_overriding, p1)
self.assertIs(container_a.p12.last_overriding, p2)
def test_override_providers_context_manager(self):
p1 = providers.Provider()
p2 = providers.Provider()
container_a = ContainerA()
with container_a.override_providers(p11=p1, p12=p2) as container:
self.assertIs(container, container_a)
self.assertIs(container_a.p11.last_overriding, p1)
self.assertIs(container_a.p12.last_overriding, p2)
self.assertIsNone(container_a.p11.last_overriding)
self.assertIsNone(container_a.p12.last_overriding)
def test_override_providers_with_unknown_provider(self):
container_a = ContainerA()
with self.assertRaises(AttributeError):
container_a.override_providers(unknown=providers.Provider())
def test_reset_last_overriding(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
container.reset_last_overriding()
self.assertEqual(container.overridden,
(overriding_container1,))
self.assertEqual(container.p11.overridden,
(overriding_container1.p11,))
def test_reset_last_overriding_when_not_overridden(self):
container = ContainerA()
with self.assertRaises(errors.Error):
container.reset_last_overriding()
def test_reset_override(self):
class _Container(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer1(containers.DeclarativeContainer):
p11 = providers.Provider()
class _OverridingContainer2(containers.DeclarativeContainer):
p11 = providers.Provider()
p12 = providers.Provider()
container = _Container()
overriding_container1 = _OverridingContainer1()
overriding_container2 = _OverridingContainer2()
container.override(overriding_container1)
container.override(overriding_container2)
container.reset_override()
self.assertEqual(container.overridden, tuple())
self.assertEqual(container.p11.overridden, tuple())
def test_init_and_shutdown_resources_ordering(self):
"""Test init and shutdown resources.
Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
Initialization should first initialize resources without dependencies and then provide
these resources to other resources. Resources shutdown should follow the same rule: first
shutdown resources without initialized dependencies and then continue correspondingly
until all resources are shutdown.
"""
initialized_resources = []
shutdown_resources = []
def _resource(name, **_):
initialized_resources.append(name)
yield name
shutdown_resources.append(name)
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
container.init_resources()
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, [])
container.shutdown_resources()
self.assertEqual(initialized_resources, ["r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
container.init_resources()
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1"])
container.shutdown_resources()
self.assertEqual(initialized_resources, ["r1", "r2", "r3", "r1", "r2", "r3"])
self.assertEqual(shutdown_resources, ["r3", "r2", "r1", "r3", "r2", "r1"])
def test_shutdown_resources_circular_dependencies_breaker(self):
def _resource(name, **_):
yield name
class Container(containers.DeclarativeContainer):
resource1 = providers.Resource(
_resource,
name="r1",
)
resource2 = providers.Resource(
_resource,
name="r2",
r1=resource1,
)
resource3 = providers.Resource(
_resource,
name="r3",
r2=resource2,
)
container = Container()
container.init_resources()
# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
container.resource1.add_kwargs(r3=container.resource3)
with self.assertRaises(RuntimeError) as context:
container.shutdown_resources()
self.assertEqual(str(context.exception), "Unable to resolve resources shutdown order")
def test_init_shutdown_nested_resources(self):
def _init1():
_init1.init_counter += 1
yield
_init1.shutdown_counter += 1
_init1.init_counter = 0
_init1.shutdown_counter = 0
def _init2():
_init2.init_counter += 1
yield
_init2.shutdown_counter += 1
_init2.init_counter = 0
_init2.shutdown_counter = 0
class Container(containers.DeclarativeContainer):
service = providers.Factory(
dict,
resource1=providers.Resource(_init1),
resource2=providers.Resource(_init2),
)
container = Container()
self.assertEqual(_init1.init_counter, 0)
self.assertEqual(_init1.shutdown_counter, 0)
self.assertEqual(_init2.init_counter, 0)
self.assertEqual(_init2.shutdown_counter, 0)
container.init_resources()
self.assertEqual(_init1.init_counter, 1)
self.assertEqual(_init1.shutdown_counter, 0)
self.assertEqual(_init2.init_counter, 1)
self.assertEqual(_init2.shutdown_counter, 0)
container.shutdown_resources()
self.assertEqual(_init1.init_counter, 1)
self.assertEqual(_init1.shutdown_counter, 1)
self.assertEqual(_init2.init_counter, 1)
self.assertEqual(_init2.shutdown_counter, 1)
container.init_resources()
container.shutdown_resources()
self.assertEqual(_init1.init_counter, 2)
self.assertEqual(_init1.shutdown_counter, 2)
self.assertEqual(_init2.init_counter, 2)
self.assertEqual(_init2.shutdown_counter, 2)
def test_reset_singletons(self):
class SubSubContainer(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
class SubContainer(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
sub_sub_container = providers.Container(SubSubContainer)
class Container(containers.DeclarativeContainer):
singleton = providers.Singleton(object)
sub_container = providers.Container(SubContainer)
container = Container()
obj11 = container.singleton()
obj12 = container.sub_container().singleton()
obj13 = container.sub_container().sub_sub_container().singleton()
obj21 = container.singleton()
obj22 = container.sub_container().singleton()
obj23 = container.sub_container().sub_sub_container().singleton()
self.assertIs(obj11, obj21)
self.assertIs(obj12, obj22)
self.assertIs(obj13, obj23)
container.reset_singletons()
obj31 = container.singleton()
obj32 = container.sub_container().singleton()
obj33 = container.sub_container().sub_sub_container().singleton()
obj41 = container.singleton()
obj42 = container.sub_container().singleton()
obj43 = container.sub_container().sub_sub_container().singleton()
self.assertIsNot(obj11, obj31)
self.assertIsNot(obj12, obj32)
self.assertIsNot(obj13, obj33)
self.assertIsNot(obj21, obj31)
self.assertIsNot(obj22, obj32)
self.assertIsNot(obj23, obj33)
self.assertIs(obj31, obj41)
self.assertIs(obj32, obj42)
self.assertIs(obj33, obj43)
def test_reset_singletons_context_manager(self):
class Item:
def __init__(self, dependency):
self.dependency = dependency
class Container(containers.DeclarativeContainer):
dependent = providers.Singleton(object)
singleton = providers.Singleton(Item, dependency=dependent)
container = Container()
instance1 = container.singleton()
with container.reset_singletons():
instance2 = container.singleton()
instance3 = container.singleton()
self.assertEqual(len({instance1, instance2, instance3}), 3)
self.assertEqual(
len({instance1.dependency, instance2.dependency, instance3.dependency}),
3,
)
def test_reset_singletons_context_manager_as_attribute(self):
container = containers.DeclarativeContainer()
with container.reset_singletons() as alias:
pass
self.assertIs(container, alias)
def test_check_dependencies(self):
class SubContainer(containers.DeclarativeContainer):
dependency = providers.Dependency()
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
dependencies_container = providers.DependenciesContainer()
provider = providers.List(dependencies_container.dependency)
sub_container = providers.Container(SubContainer)
container = Container()
with self.assertRaises(errors.Error) as context:
container.check_dependencies()
self.assertIn("Container \"Container\" has undefined dependencies:", str(context.exception))
self.assertIn("\"Container.dependency\"", str(context.exception))
self.assertIn("\"Container.dependencies_container.dependency\"", str(context.exception))
self.assertIn("\"Container.sub_container.dependency\"", str(context.exception))
def test_check_dependencies_all_defined(self):
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency()
container = Container(dependency="provided")
result = container.check_dependencies()
self.assertIsNone(result)
def test_assign_parent(self):
parent = providers.DependenciesContainer()
container = ContainerA()
container.assign_parent(parent)
self.assertIs(container.parent, parent)
def test_parent_name_declarative_parent(self):
container = ContainerA()
self.assertEqual(container.parent_name, "ContainerA")
def test_parent_name(self):
container = ContainerA()
self.assertEqual(container.parent_name, "ContainerA")
def test_parent_name_with_deep_parenting(self):
class Container2(containers.DeclarativeContainer):
name = providers.Container(ContainerA)
class Container1(containers.DeclarativeContainer):
container = providers.Container(Container2)
container = Container1()
self.assertEqual(container.container().name.parent_name, "Container1.container.name")
def test_parent_name_is_none(self):
container = containers.DynamicContainer()
self.assertIsNone(container.parent_name)
def test_parent_deepcopy(self):
class Container(containers.DeclarativeContainer):
container = providers.Container(ContainerA)
container = Container()
copied = providers.deepcopy(container)
self.assertIs(container.container.parent, container)
self.assertIs(copied.container.parent, copied)
self.assertIsNot(container, copied)
self.assertIsNot(container.container, copied.container)
self.assertIsNot(container.container.parent, copied.container.parent)
def test_resolve_provider_name(self):
container = ContainerA()
self.assertEqual(container.resolve_provider_name(container.p11), "p11")
def test_resolve_provider_name_no_provider(self):
container = ContainerA()
with self.assertRaises(errors.Error):
container.resolve_provider_name(providers.Provider())
class SelfTests(unittest.TestCase):
def test_self(self):
def call_bar(container):
return container.bar()
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
container = Container()
self.assertIs(container.foo(), "hello")
def test_self_attribute_implicit(self):
class Container(containers.DeclarativeContainer):
pass
container = Container()
self.assertIs(container.__self__(), container)
def test_self_attribute_explicit(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container = Container()
self.assertIs(container.__self__(), container)
def test_single_self(self):
with self.assertRaises(errors.Error):
class Container(containers.DeclarativeContainer):
self1 = providers.Self()
self2 = providers.Self()
def test_self_attribute_alt_name_implicit(self):
class Container(containers.DeclarativeContainer):
foo = providers.Self()
container = Container()
self.assertIs(container.__self__, container.foo)
self.assertEqual(set(container.__self__.alt_names), {"foo"})
def test_self_attribute_alt_name_explicit_1(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = __self__
container = Container()
self.assertIs(container.__self__, container.foo)
self.assertIs(container.__self__, container.bar)
self.assertEqual(set(container.__self__.alt_names), {"foo", "bar"})
def test_self_attribute_alt_name_explicit_2(self):
class Container(containers.DeclarativeContainer):
foo = providers.Self()
bar = foo
container = Container()
self.assertIs(container.__self__, container.foo)
self.assertIs(container.__self__, container.bar)
self.assertEqual(set(container.__self__.alt_names), {"foo", "bar"})
def test_providers_attribute_1(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = __self__
container = Container()
self.assertEqual(container.providers, {})
self.assertEqual(Container.providers, {})
def test_providers_attribute_2(self):
class Container(containers.DeclarativeContainer):
foo = providers.Self()
bar = foo
container = Container()
self.assertEqual(container.providers, {})
self.assertEqual(Container.providers, {})
def test_container_multiple_instances(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container1 = Container()
container2 = Container()
self.assertIsNot(container1, container2)
self.assertIs(container1.__self__(), container1)
self.assertIs(container2.__self__(), container2)
def test_deepcopy(self):
def call_bar(container):
return container.bar()
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
container1 = Container()
container2 = providers.deepcopy(container1)
container1.bar.override("bye")
self.assertIs(container1.foo(), "bye")
self.assertIs(container2.foo(), "hello")
def test_deepcopy_alt_names_1(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = __self__
bar = foo
container1 = Container()
container2 = providers.deepcopy(container1)
self.assertIs(container2.__self__(), container2)
self.assertIs(container2.foo(), container2)
self.assertIs(container2.bar(), container2)
def test_deepcopy_alt_names_2(self):
class Container(containers.DeclarativeContainer):
self = providers.Self()
container1 = Container()
container2 = providers.deepcopy(container1)
self.assertIs(container2.__self__(), container2)
self.assertIs(container2.self(), container2)
def test_deepcopy_no_self_dependencies(self):
class Container(containers.DeclarativeContainer):
__self__ = providers.Self()
container1 = Container()
container2 = providers.deepcopy(container1)
self.assertIsNot(container1, container2)
self.assertIsNot(container1.__self__, container2.__self__)
self.assertIs(container1.__self__(), container1)
self.assertIs(container2.__self__(), container2)
def test_with_container_provider(self):
def call_bar(container):
return container.bar()
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer)
baz = providers.Callable(lambda value: value, sub_container.foo)
container = Container()
self.assertIs(container.baz(), "hello")
def test_with_container_provider_overriding(self):
def call_bar(container):
return container.bar()
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
foo = providers.Callable(call_bar, __self__)
bar = providers.Object("hello")
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer, bar="bye")
baz = providers.Callable(lambda value: value, sub_container.foo)
container = Container()
self.assertIs(container.baz(), "bye")
def test_with_container_provider_self(self):
class SubContainer(containers.DeclarativeContainer):
__self__ = providers.Self()
class Container(containers.DeclarativeContainer):
sub_container = providers.Container(SubContainer)
container = Container()
self.assertIs(container.__self__(), container)
self.assertIs(container.sub_container().__self__(), container.sub_container())
class DynamicContainerWithCustomStringTests(unittest.TestCase):
# See: https://github.com/ets-labs/python-dependency-injector/issues/479
class CustomString(str):
pass
class CustomClass:
thing = None
def setUp(self):
self.container = containers.DynamicContainer()
self.provider = providers.Provider()
def test_setattr(self):
setattr(self.container, self.CustomString("test_attr"), self.provider)
self.assertIs(self.container.test_attr, self.provider)
def test_delattr(self):
setattr(self.container, self.CustomString("test_attr"), self.provider)
delattr(self.container, self.CustomString("test_attr"))
with self.assertRaises(AttributeError):
self.container.test_attr
def test_set_provider(self):
self.container.set_provider(self.CustomString("test_attr"), self.provider)
self.assertIs(self.container.test_attr, self.provider)
def test_set_providers(self):
self.container.set_providers(**{self.CustomString("test_attr"): self.provider})
self.assertIs(self.container.test_attr, self.provider)

82
tests/unit/containers/test_traversal_py3.py
View File

@ -1,12 +1,9 @@
import unittest
"""Container traversing tests."""
from dependency_injector import containers, providers
class TraverseProviderTests(unittest.TestCase):
def test_nested_providers(self):
class Container(containers.DeclarativeContainer):
class Container(containers.DeclarativeContainer):
obj_factory = providers.DelegatedFactory(
dict,
foo=providers.Resource(
@ -19,75 +16,38 @@ class TraverseProviderTests(unittest.TestCase):
)
)
def test_nested_providers():
container = Container()
all_providers = list(container.traverse())
self.assertIn(container.obj_factory, all_providers)
self.assertIn(container.obj_factory.kwargs["foo"], all_providers)
self.assertIn(container.obj_factory.kwargs["bar"], all_providers)
self.assertEqual(len(all_providers), 3)
assert container.obj_factory in all_providers
assert container.obj_factory.kwargs["foo"] in all_providers
assert container.obj_factory.kwargs["bar"] in all_providers
assert len(all_providers) == 3
def test_nested_providers_with_filtering(self):
class Container(containers.DeclarativeContainer):
obj_factory = providers.DelegatedFactory(
dict,
foo=providers.Resource(
dict,
foo="bar"
),
bar=providers.Resource(
dict,
foo="bar"
)
)
def test_nested_providers_with_filtering():
container = Container()
all_providers = list(container.traverse(types=[providers.Resource]))
self.assertIn(container.obj_factory.kwargs["foo"], all_providers)
self.assertIn(container.obj_factory.kwargs["bar"], all_providers)
self.assertEqual(len(all_providers), 2)
assert container.obj_factory.kwargs["foo"] in all_providers
assert container.obj_factory.kwargs["bar"] in all_providers
assert len(all_providers) == 2
class TraverseProviderDeclarativeTests(unittest.TestCase):
def test_nested_providers(self):
class Container(containers.DeclarativeContainer):
obj_factory = providers.DelegatedFactory(
dict,
foo=providers.Resource(
dict,
foo="bar"
),
bar=providers.Resource(
dict,
foo="bar"
)
)
def test_container_cls_nested_providers():
all_providers = list(Container.traverse())
self.assertIn(Container.obj_factory, all_providers)
self.assertIn(Container.obj_factory.kwargs["foo"], all_providers)
self.assertIn(Container.obj_factory.kwargs["bar"], all_providers)
self.assertEqual(len(all_providers), 3)
assert Container.obj_factory in all_providers
assert Container.obj_factory.kwargs["foo"] in all_providers
assert Container.obj_factory.kwargs["bar"] in all_providers
assert len(all_providers) == 3
def test_nested_providers_with_filtering(self):
class Container(containers.DeclarativeContainer):
obj_factory = providers.DelegatedFactory(
dict,
foo=providers.Resource(
dict,
foo="bar"
),
bar=providers.Resource(
dict,
foo="bar"
)
)
def test_container_cls_nested_providers_with_filtering():
all_providers = list(Container.traverse(types=[providers.Resource]))
self.assertIn(Container.obj_factory.kwargs["foo"], all_providers)
self.assertIn(Container.obj_factory.kwargs["bar"], all_providers)
self.assertEqual(len(all_providers), 2)
assert Container.obj_factory.kwargs["foo"] in all_providers
assert Container.obj_factory.kwargs["bar"] in all_providers
assert len(all_providers) == 2

17
tests/unit/containers/test_types_py36.py
View File

@ -1,18 +1,13 @@
import unittest
"""Container typing in runtime tests."""
from dependency_injector import containers
class SomeClass:
...
class TypesTest(unittest.TestCase):
def test_declarative(self):
def test_types_declarative():
container: containers.Container = containers.DeclarativeContainer()
self.assertIsInstance(container, containers.Container)
assert isinstance(container, containers.Container)
def test_dynamic(self):
def test_types_dynamic():
container: containers.Container = containers.DynamicContainer()
self.assertIsInstance(container, containers.Container)
assert isinstance(container, containers.Container)

2
tests/unit/ext/__init__.py
View File

@ -1 +1 @@
"""Dependency injector extension unit tests."""
"""Extension tests."""

63
tests/unit/ext/test_aiohttp_py35.py
View File

@ -1,10 +1,9 @@
"""Dependency injector Aiohttp extension unit tests."""
from aiohttp import web
from aiohttp.test_utils import AioHTTPTestCase, unittest_run_loop
"""Aiohttp extension tests."""
from aiohttp import web, test_utils
from dependency_injector import containers, providers
from dependency_injector.ext import aiohttp
from pytest import fixture, mark
async def index_view(_):
@ -51,12 +50,8 @@ class ApplicationContainer(containers.DeclarativeContainer):
other_class_based_view = aiohttp.ClassBasedView(OtherClassBasedView)
class ApplicationTests(AioHTTPTestCase):
async def get_application(self):
"""
Override the get_app method to return your application.
"""
@fixture
def app():
container = ApplicationContainer()
app = container.app()
app.container = container
@ -67,27 +62,39 @@ class ApplicationTests(AioHTTPTestCase):
])
return app
@unittest_run_loop
async def test_index(self):
response = await self.client.get("/")
self.assertEqual(response.status, 200)
self.assertEqual(await response.text(), "Hello World! wink2 wink1")
@fixture
async def client(app):
async with test_utils.TestClient(test_utils.TestServer(app)) as client:
yield client
@unittest_run_loop
async def test_second(self):
response = await self.client.get("/second")
self.assertEqual(response.status, 200)
self.assertEqual(await response.text(), "Test! wink2 wink1")
@mark.asyncio
@mark.filterwarnings("ignore:The loop argument is deprecated:DeprecationWarning")
async def test_index(client):
response = await client.get("/")
@unittest_run_loop
async def test_class_based(self):
response = await self.client.get("/class-based")
assert response.status == 200
assert await response.text() == "Hello World! wink2 wink1"
self.assertEqual(response.status, 200)
self.assertEqual(await response.text(), "Test class-based! wink2 wink1")
@unittest_run_loop
async def test_endpoints(self):
self.assertEqual(str(self.app.router["second"].url_for()), "/second")
@mark.asyncio
@mark.filterwarnings("ignore:The loop argument is deprecated:DeprecationWarning")
async def test_second(client):
response = await client.get("/second")
assert response.status == 200
assert await response.text() == "Test! wink2 wink1"
@mark.asyncio
@mark.filterwarnings("ignore:The loop argument is deprecated:DeprecationWarning")
async def test_class_based(client):
response = await client.get("/class-based")
assert response.status == 200
assert await response.text() == "Test class-based! wink2 wink1"
def test_endpoints(app):
assert str(app.router["second"].url_for()) == "/second"

61
tests/unit/ext/test_flask_py2_py3.py
View File

@ -1,11 +1,10 @@
"""Dependency injector Flask extension unit tests."""
import unittest
from flask import Flask, url_for
from flask.views import MethodView
"""Flask extension tests."""
from dependency_injector import containers
from dependency_injector.ext import flask
from flask import Flask, url_for
from flask.views import MethodView
from pytest import fixture
def index():
@ -30,47 +29,47 @@ class ApplicationContainer(containers.DeclarativeContainer):
test_class_view = flask.ClassBasedView(Test)
def create_app():
@fixture
def app():
container = ApplicationContainer()
app = container.app()
app.container = container
app.config["SERVER_NAME"] = "test-server.com"
app.add_url_rule("/", view_func=container.index_view.as_view())
app.add_url_rule("/test", "test-test", view_func=container.test_view.as_view())
app.add_url_rule("/test-class", view_func=container.test_class_view.as_view("test-class"))
return app
class ApplicationTests(unittest.TestCase):
@fixture
def client(app):
with app.test_client() as client:
yield client
def setUp(self):
self.app = create_app()
self.app.config["SERVER_NAME"] = "test-server.com"
self.client = self.app.test_client()
self.client.__enter__()
def tearDown(self):
self.client.__exit__(None, None, None)
def test_index(client):
response = client.get("/")
def test_index(self):
response = self.client.get("/")
assert response.status_code == 200
assert response.data == b"Hello World!"
self.assertEqual(response.status_code, 200)
self.assertEqual(response.data, b"Hello World!")
def test_test(self):
response = self.client.get("/test")
def test_test(client):
response = client.get("/test")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.data, b"Test!")
assert response.status_code == 200
assert response.data == b"Test!"
def test_test_class_based(self):
response = self.client.get("/test-class")
self.assertEqual(response.status_code, 200)
self.assertEqual(response.data, b"Test class-based!")
def test_test_class_based(client):
response = client.get("/test-class")
def test_endpoints(self):
with self.app.app_context():
self.assertEqual(url_for("index"), "http://test-server.com/")
self.assertEqual(url_for("test-test"), "http://test-server.com/test")
self.assertEqual(url_for("test-class"), "http://test-server.com/test-class")
assert response.status_code == 200
assert response.data == b"Test class-based!"
def test_endpoints(app):
with app.app_context():
assert url_for("index") == "http://test-server.com/"
assert url_for("test-test") == "http://test-server.com/test"
assert url_for("test-class") == "http://test-server.com/test-class"

2
tests/unit/providers/__init__.py
View File

@ -1 +1 @@
"""Dependency injector providers unit tests."""
"""Providers tests."""

1
tests/unit/providers/async/__init__.py Normal file
View File

@ -0,0 +1 @@
"""Provider asynchronous mode tests."""

45
tests/unit/providers/async/common.py Normal file
View File

@ -0,0 +1,45 @@
"""Common test artifacts."""
import asyncio
import random
from dependency_injector import containers, providers
RESOURCE1 = object()
RESOURCE2 = object()
async def init_resource(resource):
await asyncio.sleep(random.randint(1, 10) / 1000)
yield resource
await asyncio.sleep(random.randint(1, 10) / 1000)
class Client:
def __init__(self, resource1: object, resource2: object) -> None:
self.resource1 = resource1
self.resource2 = resource2
class Service:
def __init__(self, client: Client) -> None:
self.client = client
class BaseContainer(containers.DeclarativeContainer):
resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
resource2 = providers.Resource(init_resource, providers.Object(RESOURCE2))
class Container(BaseContainer):
client = providers.Factory(
Client,
resource1=BaseContainer.resource1,
resource2=BaseContainer.resource2,
)
service = providers.Factory(
Service,
client=client,
)

45
tests/unit/providers/async/test_async_mode_api_py36.py Normal file
View File

@ -0,0 +1,45 @@
"""Tests for provider async mode API."""
from dependency_injector import providers
from pytest import fixture
@fixture
def provider():
return providers.Provider()
def test_default_mode(provider: providers.Provider):
assert provider.is_async_mode_enabled() is False
assert provider.is_async_mode_disabled() is False
assert provider.is_async_mode_undefined() is True
def test_enable(provider: providers.Provider):
provider.enable_async_mode()
assert provider.is_async_mode_enabled() is True
assert provider.is_async_mode_disabled() is False
assert provider.is_async_mode_undefined() is False
def test_disable(provider: providers.Provider):
provider.disable_async_mode()
assert provider.is_async_mode_enabled() is False
assert provider.is_async_mode_disabled() is True
assert provider.is_async_mode_undefined() is False
def test_reset(provider: providers.Provider):
provider.enable_async_mode()
assert provider.is_async_mode_enabled() is True
assert provider.is_async_mode_disabled() is False
assert provider.is_async_mode_undefined() is False
provider.reset_async_mode()
assert provider.is_async_mode_enabled() is False
assert provider.is_async_mode_disabled() is False
assert provider.is_async_mode_undefined() is True

38
tests/unit/providers/async/test_delegated_singleton_py36.py Normal file
View File

@ -0,0 +1,38 @@
"""DelegatedSingleton provider async mode tests."""
import asyncio
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.DelegatedSingleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
return object()
provider = providers.DelegatedSingleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
assert instance1 is instance2

38
tests/unit/providers/async/test_delegated_thread_local_singleton_py36.py Normal file
View File

@ -0,0 +1,38 @@
"""DelegatedThreadLocalSingleton provider async mode tests."""
import asyncio
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.DelegatedThreadLocalSingleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
return object()
provider = providers.DelegatedThreadLocalSingleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
assert instance1 is instance2

38
tests/unit/providers/async/test_delegated_thread_safe_singleton_py36.py Normal file
View File

@ -0,0 +1,38 @@
"""DelegatedThreadSafeSingleton provider async mode tests."""
import asyncio
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.DelegatedThreadSafeSingleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
return object()
provider = providers.DelegatedThreadSafeSingleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
assert instance1 is instance2

88
tests/unit/providers/async/test_dependency_py36.py Normal file
View File

@ -0,0 +1,88 @@
"""Dependency provider async mode tests."""
from dependency_injector import providers, errors
from pytest import mark, raises
@mark.asyncio
async def test_provide_error():
async def get_async():
raise Exception
provider = providers.Dependency()
provider.override(providers.Callable(get_async))
with raises(Exception):
await provider()
@mark.asyncio
async def test_isinstance():
dependency = 1.0
async def get_async():
return dependency
provider = providers.Dependency(instance_of=float)
provider.override(providers.Callable(get_async))
assert provider.is_async_mode_undefined() is True
dependency1 = await provider()
assert provider.is_async_mode_enabled() is True
dependency2 = await provider()
assert dependency1 == dependency
assert dependency2 == dependency
@mark.asyncio
async def test_isinstance_invalid():
async def get_async():
return {}
provider = providers.Dependency(instance_of=float)
provider.override(providers.Callable(get_async))
assert provider.is_async_mode_undefined() is True
with raises(errors.Error):
await provider()
assert provider.is_async_mode_enabled() is True
@mark.asyncio
async def test_async_mode():
dependency = 123
async def get_async():
return dependency
def get_sync():
return dependency
provider = providers.Dependency(instance_of=int)
provider.override(providers.Factory(get_async))
assert provider.is_async_mode_undefined() is True
dependency1 = await provider()
assert provider.is_async_mode_enabled() is True
dependency2 = await provider()
assert dependency1 == dependency
assert dependency2 == dependency
provider.override(providers.Factory(get_sync))
dependency3 = await provider()
assert provider.is_async_mode_enabled() is True
dependency4 = await provider()
assert dependency3 == dependency
assert dependency4 == dependency

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tests/unit/providers/async/test_dict_py36.py Normal file
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"""Dict provider async mode tests."""
from dependency_injector import containers, providers
from pytest import mark
@mark.asyncio
async def test_provide():
async def create_resource(param: str):
return param
class Container(containers.DeclarativeContainer):
resources = providers.Dict(
foo=providers.Resource(create_resource, "foo"),
bar=providers.Resource(create_resource, "bar")
)
container = Container()
resources = await container.resources()
assert resources["foo"] == "foo"
assert resources["bar"] == "bar"

30
tests/unit/providers/async/test_factory_aggregate_py36.py Normal file
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"""FactoryAggregate provider async mode tests."""
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_async_mode():
object1 = object()
object2 = object()
async def _get_object1():
return object1
def _get_object2():
return object2
provider = providers.FactoryAggregate(
object1=providers.Factory(_get_object1),
object2=providers.Factory(_get_object2),
)
assert provider.is_async_mode_undefined() is True
created_object1 = await provider("object1")
assert created_object1 is object1
assert provider.is_async_mode_enabled() is True
created_object2 = await provider("object2")
assert created_object2 is object2

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tests/unit/providers/async/test_factory_py36.py Normal file
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"""Factory provider async mode tests."""
import asyncio
from dependency_injector import containers, providers
from pytest import mark, raises
from .common import RESOURCE1, RESOURCE2, Client, Service, BaseContainer, Container, init_resource
@mark.asyncio
async def test_args_injection():
class ContainerWithArgs(BaseContainer):
client = providers.Factory(
Client,
BaseContainer.resource1,
BaseContainer.resource2,
)
service = providers.Factory(
Service,
client,
)
container = ContainerWithArgs()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client
@mark.asyncio
async def test_kwargs_injection():
class ContainerWithKwArgs(Container):
...
container = ContainerWithKwArgs()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client
@mark.asyncio
async def test_context_kwargs_injection():
resource2_extra = object()
container = Container()
client1 = await container.client(resource2=resource2_extra)
client2 = await container.client(resource2=resource2_extra)
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is resource2_extra
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is resource2_extra
@mark.asyncio
async def test_args_kwargs_injection():
class ContainerWithArgsAndKwArgs(BaseContainer):
client = providers.Factory(
Client,
BaseContainer.resource1,
resource2=BaseContainer.resource2,
)
service = providers.Factory(
Service,
client=client,
)
container = ContainerWithArgsAndKwArgs()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client
@mark.asyncio
async def test_async_provider_with_async_injections():
# See: https://github.com/ets-labs/python-dependency-injector/issues/368
async def async_client_provider():
return {"client": "OK"}
async def async_service(client):
return {"service": "OK", "client": client}
class Container(containers.DeclarativeContainer):
client = providers.Factory(async_client_provider)
service = providers.Factory(async_service, client=client)
container = Container()
service = await container.service()
assert service == {"service": "OK", "client": {"client": "OK"}}
@mark.asyncio
async def test_with_awaitable_injection():
class SomeResource:
def __await__(self):
raise RuntimeError("Should never happen")
async def init_resource():
yield SomeResource()
class Service:
def __init__(self, resource) -> None:
self.resource = resource
class Container(containers.DeclarativeContainer):
resource = providers.Resource(init_resource)
service = providers.Factory(Service, resource=resource)
container = Container()
assert isinstance(container.service(), asyncio.Future)
assert isinstance(container.resource(), asyncio.Future)
resource = await container.resource()
service = await container.service()
assert isinstance(resource, SomeResource)
assert isinstance(service.resource, SomeResource)
assert service.resource is resource
@mark.asyncio
async def test_with_awaitable_injection_and_with_init_resources_call():
class SomeResource:
def __await__(self):
raise RuntimeError("Should never happen")
async def init_resource():
yield SomeResource()
class Service:
def __init__(self, resource) -> None:
self.resource = resource
class Container(containers.DeclarativeContainer):
resource = providers.Resource(init_resource)
service = providers.Factory(Service, resource=resource)
container = Container()
await container.init_resources()
assert isinstance(container.service(), asyncio.Future)
assert isinstance(container.resource(), asyncio.Future)
resource = await container.resource()
service = await container.service()
assert isinstance(resource, SomeResource)
assert isinstance(service.resource, SomeResource)
assert service.resource is resource
@mark.asyncio
async def test_injection_error():
async def init_resource():
raise Exception("Something went wrong")
class Container(containers.DeclarativeContainer):
resource_with_error = providers.Resource(init_resource)
client = providers.Factory(
Client,
resource1=resource_with_error,
resource2=None,
)
container = Container()
with raises(Exception, match="Something went wrong"):
await container.client()
@mark.asyncio
async def test_injection_runtime_error_async_provides():
async def create_client(*args, **kwargs):
raise Exception("Something went wrong")
class Container(BaseContainer):
client = providers.Factory(
create_client,
resource1=BaseContainer.resource1,
resource2=None,
)
container = Container()
with raises(Exception, match="Something went wrong"):
await container.client()
@mark.asyncio
async def test_injection_call_error_async_provides():
async def create_client(): # <-- no args defined
...
class Container(BaseContainer):
client = providers.Factory(
create_client,
resource1=BaseContainer.resource1,
resource2=None,
)
container = Container()
with raises(TypeError) as exception_info:
await container.client()
assert "create_client() got" in str(exception_info.value)
assert "unexpected keyword argument" in str(exception_info.value)
@mark.asyncio
async def test_attributes_injection():
class ContainerWithAttributes(BaseContainer):
client = providers.Factory(
Client,
BaseContainer.resource1,
resource2=None,
)
client.add_attributes(resource2=BaseContainer.resource2)
service = providers.Factory(
Service,
client=None,
)
service.add_attributes(client=client)
container = ContainerWithAttributes()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client
@mark.asyncio
async def test_attributes_injection_attribute_error():
class ClientWithException(Client):
@property
def attribute_set_error(self):
return None
@attribute_set_error.setter
def attribute_set_error(self, value):
raise Exception("Something went wrong")
class Container(BaseContainer):
client = providers.Factory(
ClientWithException,
resource1=BaseContainer.resource1,
resource2=BaseContainer.resource2,
)
client.add_attributes(attribute_set_error=123)
container = Container()
with raises(Exception, match="Something went wrong"):
await container.client()
@mark.asyncio
async def test_attributes_injection_runtime_error():
async def init_resource():
raise Exception("Something went wrong")
class Container(containers.DeclarativeContainer):
resource = providers.Resource(init_resource)
client = providers.Factory(
Client,
resource1=None,
resource2=None,
)
client.add_attributes(resource1=resource)
client.add_attributes(resource2=resource)
container = Container()
with raises(Exception, match="Something went wrong"):
await container.client()
@mark.asyncio
async def test_async_instance_and_sync_attributes_injection():
class ContainerWithAttributes(BaseContainer):
resource1 = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(
Client,
BaseContainer.resource1,
resource2=None,
)
client.add_attributes(resource2=providers.Object(RESOURCE2))
service = providers.Factory(
Service,
client=None,
)
service.add_attributes(client=client)
container = ContainerWithAttributes()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client

24
tests/unit/providers/async/test_list_py36.py Normal file
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"""List provider async mode tests."""
from dependency_injector import containers, providers
from pytest import mark
@mark.asyncio
async def test_provide():
# See issue: https://github.com/ets-labs/python-dependency-injector/issues/450
async def create_resource(param: str):
return param
class Container(containers.DeclarativeContainer):
resources = providers.List(
providers.Resource(create_resource, "foo"),
providers.Resource(create_resource, "bar")
)
container = Container()
resources = await container.resources()
assert resources[0] == "foo"
assert resources[1] == "bar"

127
tests/unit/providers/async/test_override_py36.py Normal file
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"""Tests for provider overriding in async mode."""
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_provider():
dependency = object()
async def _get_dependency_async():
return dependency
def _get_dependency_sync():
return dependency
provider = providers.Provider()
provider.override(providers.Callable(_get_dependency_async))
dependency1 = await provider()
provider.override(providers.Callable(_get_dependency_sync))
dependency2 = await provider()
assert dependency1 is dependency
assert dependency2 is dependency
@mark.asyncio
async def test_callable():
dependency = object()
async def _get_dependency_async():
return dependency
def _get_dependency_sync():
return dependency
provider = providers.Callable(_get_dependency_async)
dependency1 = await provider()
provider.override(providers.Callable(_get_dependency_sync))
dependency2 = await provider()
assert dependency1 is dependency
assert dependency2 is dependency
@mark.asyncio
async def test_factory():
dependency = object()
async def _get_dependency_async():
return dependency
def _get_dependency_sync():
return dependency
provider = providers.Factory(_get_dependency_async)
dependency1 = await provider()
provider.override(providers.Callable(_get_dependency_sync))
dependency2 = await provider()
assert dependency1 is dependency
assert dependency2 is dependency
@mark.asyncio
async def test_async_mode_enabling():
dependency = object()
async def _get_dependency_async():
return dependency
provider = providers.Callable(_get_dependency_async)
assert provider.is_async_mode_undefined() is True
await provider()
assert provider.is_async_mode_enabled() is True
@mark.asyncio
async def test_async_mode_disabling():
dependency = object()
def _get_dependency():
return dependency
provider = providers.Callable(_get_dependency)
assert provider.is_async_mode_undefined() is True
provider()
assert provider.is_async_mode_disabled() is True
@mark.asyncio
async def test_async_mode_enabling_on_overriding():
dependency = object()
async def _get_dependency_async():
return dependency
provider = providers.Provider()
provider.override(providers.Callable(_get_dependency_async))
assert provider.is_async_mode_undefined() is True
await provider()
assert provider.is_async_mode_enabled() is True
def test_async_mode_disabling_on_overriding():
dependency = object()
def _get_dependency():
return dependency
provider = providers.Provider()
provider.override(providers.Callable(_get_dependency))
assert provider.is_async_mode_undefined() is True
provider()
assert provider.is_async_mode_disabled() is True

180
tests/unit/providers/async/test_provided_instance_py36.py Normal file
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"""ProvidedInstance provider async mode tests."""
import asyncio
from dependency_injector import containers, providers
from pytest import mark, raises
from .common import RESOURCE1, init_resource
@mark.asyncio
async def test_provided_attribute():
class TestClient:
def __init__(self, resource):
self.resource = resource
class TestService:
def __init__(self, resource):
self.resource = resource
class TestContainer(containers.DeclarativeContainer):
resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(TestClient, resource=resource)
service = providers.Factory(TestService, resource=client.provided.resource)
container = TestContainer()
instance1, instance2 = await asyncio.gather(
container.service(),
container.service(),
)
assert instance1.resource is RESOURCE1
assert instance2.resource is RESOURCE1
assert instance1.resource is instance2.resource
@mark.asyncio
async def test_provided_attribute_error():
async def raise_exception():
raise RuntimeError()
class TestContainer(containers.DeclarativeContainer):
client = providers.Factory(raise_exception)
container = TestContainer()
with raises(RuntimeError):
await container.client.provided.attr()
@mark.asyncio
async def test_provided_attribute_undefined_attribute():
class TestClient:
def __init__(self, resource):
self.resource = resource
class TestContainer(containers.DeclarativeContainer):
resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(TestClient, resource=resource)
container = TestContainer()
with raises(AttributeError):
await container.client.provided.attr()
@mark.asyncio
async def test_provided_item():
class TestClient:
def __init__(self, resource):
self.resource = resource
def __getitem__(self, item):
return getattr(self, item)
class TestService:
def __init__(self, resource):
self.resource = resource
class TestContainer(containers.DeclarativeContainer):
resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(TestClient, resource=resource)
service = providers.Factory(TestService, resource=client.provided["resource"])
container = TestContainer()
instance1, instance2 = await asyncio.gather(
container.service(),
container.service(),
)
assert instance1.resource is RESOURCE1
assert instance2.resource is RESOURCE1
assert instance1.resource is instance2.resource
@mark.asyncio
async def test_provided_item_error():
async def raise_exception():
raise RuntimeError()
class TestContainer(containers.DeclarativeContainer):
client = providers.Factory(raise_exception)
container = TestContainer()
with raises(RuntimeError):
await container.client.provided["item"]()
@mark.asyncio
async def test_provided_item_undefined_item():
class TestContainer(containers.DeclarativeContainer):
resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(dict, resource=resource)
container = TestContainer()
with raises(KeyError):
await container.client.provided["item"]()
@mark.asyncio
async def test_provided_method_call():
class TestClient:
def __init__(self, resource):
self.resource = resource
def get_resource(self):
return self.resource
class TestService:
def __init__(self, resource):
self.resource = resource
class TestContainer(containers.DeclarativeContainer):
resource = providers.Resource(init_resource, providers.Object(RESOURCE1))
client = providers.Factory(TestClient, resource=resource)
service = providers.Factory(TestService, resource=client.provided.get_resource.call())
container = TestContainer()
instance1, instance2 = await asyncio.gather(
container.service(),
container.service(),
)
assert instance1.resource is RESOURCE1
assert instance2.resource is RESOURCE1
assert instance1.resource is instance2.resource
@mark.asyncio
async def test_provided_method_call_parent_error():
async def raise_exception():
raise RuntimeError()
class TestContainer(containers.DeclarativeContainer):
client = providers.Factory(raise_exception)
container = TestContainer()
with raises(RuntimeError):
await container.client.provided.method.call()()
@mark.asyncio
async def test_provided_method_call_error():
class TestClient:
def method(self):
raise RuntimeError()
class TestContainer(containers.DeclarativeContainer):
client = providers.Factory(TestClient)
container = TestContainer()
with raises(RuntimeError):
await container.client.provided.method.call()()

117
tests/unit/providers/async/test_singleton_py36.py Normal file
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"""Singleton provider async mode tests."""
import asyncio
import random
from dependency_injector import providers
from pytest import mark, raises
from .common import RESOURCE1, RESOURCE2, BaseContainer, Client, Service
@mark.asyncio
async def test_injections():
class ContainerWithSingletons(BaseContainer):
client = providers.Singleton(
Client,
resource1=BaseContainer.resource1,
resource2=BaseContainer.resource2,
)
service = providers.Singleton(
Service,
client=client,
)
container = ContainerWithSingletons()
client1 = await container.client()
client2 = await container.client()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service()
service2 = await container.service()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1 is service2
assert service1.client is service2.client
assert service1.client is client1
assert service2.client is client2
assert client1 is client2
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.Singleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
await asyncio.sleep(random.randint(1, 10) / 1000)
return object()
provider = providers.Singleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
instance3 = await provider()
assert instance1 is instance2 is instance3
@mark.asyncio
async def test_async_init_with_error():
async def create_instance():
create_instance.counter += 1
raise RuntimeError()
create_instance.counter = 0
provider = providers.Singleton(create_instance)
future = provider()
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await future
assert create_instance.counter == 1
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await provider()
assert create_instance.counter == 2
assert provider.is_async_mode_enabled() is True

63
tests/unit/providers/async/test_thread_local_singleton_py36.py Normal file
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"""ThreadLocalSingleton provider async mode tests."""
import asyncio
from dependency_injector import providers
from pytest import mark, raises
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.ThreadLocalSingleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
return object()
provider = providers.ThreadLocalSingleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
assert instance1 is instance2
@mark.asyncio
async def test_async_init_with_error():
async def create_instance():
create_instance.counter += 1
raise RuntimeError()
create_instance.counter = 0
provider = providers.ThreadLocalSingleton(create_instance)
future = provider()
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await future
assert create_instance.counter == 1
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await provider()
assert create_instance.counter == 2
assert provider.is_async_mode_enabled() is True

38
tests/unit/providers/async/test_thread_safe_singleton_py36.py Normal file
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"""ThreadSafeSingleton provider async mode tests."""
import asyncio
from dependency_injector import providers
from pytest import mark
@mark.asyncio
async def test_async_mode():
instance = object()
async def create_instance():
return instance
provider = providers.ThreadSafeSingleton(create_instance)
instance1 = await provider()
instance2 = await provider()
assert instance1 is instance2
assert instance1 is instance
assert instance2 is instance
@mark.asyncio
async def test_concurrent_init():
async def create_instance():
return object()
provider = providers.ThreadSafeSingleton(create_instance)
future_instance1 = provider()
future_instance2 = provider()
instance1, instance2 = await asyncio.gather(future_instance1, future_instance2)
assert instance1 is instance2

36
tests/unit/providers/async/test_typing_stubs_py36.py Normal file
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@ -0,0 +1,36 @@
"""Tests for provide async mode typing stubs."""
from pytest import mark
from .common import Container, Client, Service, RESOURCE1, RESOURCE2
@mark.asyncio
async def test_async_():
container = Container()
client1 = await container.client.async_()
client2 = await container.client.async_()
assert isinstance(client1, Client)
assert client1.resource1 is RESOURCE1
assert client1.resource2 is RESOURCE2
assert isinstance(client2, Client)
assert client2.resource1 is RESOURCE1
assert client2.resource2 is RESOURCE2
service1 = await container.service.async_()
service2 = await container.service.async_()
assert isinstance(service1, Service)
assert isinstance(service1.client, Client)
assert service1.client.resource1 is RESOURCE1
assert service1.client.resource2 is RESOURCE2
assert isinstance(service2, Service)
assert isinstance(service2.client, Client)
assert service2.client.resource1 is RESOURCE1
assert service2.client.resource2 is RESOURCE2
assert service1.client is not service2.client

1
tests/unit/providers/callables/__init__.py Normal file
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@ -0,0 +1 @@
"""Tests for callables."""

5
tests/unit/providers/callables/common.py Normal file
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@ -0,0 +1,5 @@
"""Common test artifacts."""
def example(arg1, arg2, arg3, arg4):
return arg1, arg2, arg3, arg4

56
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"""AbstractCallable provider tests."""
from dependency_injector import providers, errors
from pytest import raises
from .common import example
def test_inheritance():
assert isinstance(providers.AbstractCallable(example), providers.Callable)
def test_call_overridden_by_callable():
def _abstract_example():
pass
provider = providers.AbstractCallable(_abstract_example)
provider.override(providers.Callable(example))
assert provider(1, 2, 3, 4) == (1, 2, 3, 4)
def test_call_overridden_by_delegated_callable():
def _abstract_example():
pass
provider = providers.AbstractCallable(_abstract_example)
provider.override(providers.DelegatedCallable(example))
assert provider(1, 2, 3, 4) == (1, 2, 3, 4)
def test_call_not_overridden():
provider = providers.AbstractCallable(example)
with raises(errors.Error):
provider(1, 2, 3, 4)
def test_override_by_not_callable():
provider = providers.AbstractCallable(example)
with raises(errors.Error):
provider.override(providers.Factory(object))
def test_provide_not_implemented():
provider = providers.AbstractCallable(example)
with raises(NotImplementedError):
provider._provide((1, 2, 3, 4), dict())
def test_repr():
provider = providers.AbstractCallable(example)
assert repr(provider) == (
"<dependency_injector.providers."
"AbstractCallable({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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"""CallableDelegate provider tests."""
from dependency_injector import providers, errors
from pytest import raises
from .common import example
def test_is_delegate():
provider = providers.Callable(example)
delegate = providers.CallableDelegate(provider)
assert isinstance(delegate, providers.Delegate)
def test_init_with_not_callable():
with raises(errors.Error):
providers.CallableDelegate(providers.Object(object()))

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"""Callable provider tests."""
import sys
from dependency_injector import providers, errors
from pytest import raises
from .common import example
def test_is_provider():
assert providers.is_provider(providers.Callable(example)) is True
def test_init_with_not_callable():
with raises(errors.Error):
providers.Callable(123)
def test_init_optional_provides():
provider = providers.Callable()
provider.set_provides(object)
assert provider.provides is object
assert isinstance(provider(), object)
def test_set_provides_returns_():
provider = providers.Callable()
assert provider.set_provides(object) is provider
def test_provided_instance_provider():
provider = providers.Callable(example)
assert isinstance(provider.provided, providers.ProvidedInstance)
def test_call():
provider = providers.Callable(lambda: True)
assert provider() is True
def test_call_with_positional_args():
provider = providers.Callable(example, 1, 2, 3, 4)
assert provider() == (1, 2, 3, 4)
def test_call_with_keyword_args():
provider = providers.Callable(example, arg1=1, arg2=2, arg3=3, arg4=4)
assert provider() == (1, 2, 3, 4)
def test_call_with_positional_and_keyword_args():
provider = providers.Callable(example, 1, 2, arg3=3, arg4=4)
assert provider() == (1, 2, 3, 4)
def test_call_with_context_args():
provider = providers.Callable(example, 1, 2)
assert provider(3, 4) == (1, 2, 3, 4)
def test_call_with_context_kwargs():
provider = providers.Callable(example, arg1=1)
assert provider(arg2=2, arg3=3, arg4=4) == (1, 2, 3, 4)
def test_call_with_context_args_and_kwargs():
provider = providers.Callable(example, 1)
assert provider(2, arg3=3, arg4=4) == (1, 2, 3, 4)
def test_fluent_interface():
provider = providers.Singleton(example) \
.add_args(1, 2) \
.add_kwargs(arg3=3, arg4=4)
assert provider() == (1, 2, 3, 4)
def test_set_args():
provider = providers.Callable(example) \
.add_args(1, 2) \
.set_args(3, 4)
assert provider.args == (3, 4)
def test_set_kwargs():
provider = providers.Callable(example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
assert provider.kwargs == dict(init_arg3=4, init_arg4=5)
def test_clear_args():
provider = providers.Callable(example) \
.add_args(1, 2) \
.clear_args()
assert provider.args == tuple()
def test_clear_kwargs():
provider = providers.Callable(example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
assert provider.kwargs == dict()
def test_call_overridden():
provider = providers.Callable(example)
provider.override(providers.Object((4, 3, 2, 1)))
provider.override(providers.Object((1, 2, 3, 4)))
assert provider() == (1, 2, 3, 4)
def test_deepcopy():
provider = providers.Callable(example)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert provider.provides is provider_copy.provides
assert isinstance(provider, providers.Callable)
def test_deepcopy_from_memo():
provider = providers.Callable(example)
provider_copy_memo = providers.Callable(example)
provider_copy = providers.deepcopy(provider, memo={id(provider): provider_copy_memo})
assert provider_copy is provider_copy_memo
def test_deepcopy_args():
provider = providers.Callable(example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
assert provider.args != provider_copy.args
assert dependent_provider1.provides is dependent_provider_copy1.provides
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.provides is dependent_provider_copy2.provides
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_kwargs():
provider = providers.Callable(example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
assert provider.kwargs != provider_copy.kwargs
assert dependent_provider1.provides is dependent_provider_copy1.provides
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.provides is dependent_provider_copy2.provides
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_overridden():
provider = providers.Callable(example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert provider.provides is provider_copy.provides
assert isinstance(provider, providers.Callable)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams():
provider = providers.Callable(example)
provider.add_args(sys.stdin)
provider.add_kwargs(a2=sys.stdout)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert isinstance(provider_copy, providers.Callable)
assert provider.args[0] is sys.stdin
assert provider.kwargs["a2"] is sys.stdout
def test_repr():
provider = providers.Callable(example)
assert repr(provider) == (
"<dependency_injector.providers."
"Callable({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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"""DelegatedCallable provider tests."""
from dependency_injector import providers
from .common import example
def test_inheritance():
assert isinstance(providers.DelegatedCallable(example), providers.Callable)
def test_is_provider():
assert providers.is_provider(providers.DelegatedCallable(example)) is True
def test_is_delegated_provider():
provider = providers.DelegatedCallable(example)
assert providers.is_delegated(provider) is True
def test_repr():
provider = providers.DelegatedCallable(example)
assert repr(provider) == (
"<dependency_injector.providers."
"DelegatedCallable({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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"""Configuration provider tests."""

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"""Fixtures module."""
from dependency_injector import providers
from pytest import fixture
@fixture
def config_type():
return "default"
@fixture
def config(config_type):
if config_type == "strict":
return providers.Configuration(strict=True)
elif config_type == "default":
return providers.Configuration()
else:
raise ValueError("Undefined config type \"{0}\"".format(config_type))

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"""Tests for configuration provider linking."""
from dependency_injector import containers, providers
class Core(containers.DeclarativeContainer):
config = providers.Configuration("core")
value_getter = providers.Callable(lambda _: _, config.value)
class Services(containers.DeclarativeContainer):
config = providers.Configuration("services")
value_getter = providers.Callable(lambda _: _, config.value)
def test():
root_config = providers.Configuration("main")
core = Core(config=root_config.core)
services = Services(config=root_config.services)
root_config.override(
{
"core": {
"value": "core",
},
"services": {
"value": "services",
},
},
)
assert core.config() == {"value": "core"}
assert core.config.value() == "core"
assert core.value_getter() == "core"
assert services.config() == {"value": "services"}
assert services.config.value() == "services"
assert services.value_getter() == "services"
def test_double_override():
root_config = providers.Configuration("main")
core = Core(config=root_config.core)
services = Services(config=root_config.services)
root_config.override(
{
"core": {
"value": "core1",
},
"services": {
"value": "services1",
},
},
)
root_config.override(
{
"core": {
"value": "core2",
},
"services": {
"value": "services2",
},
},
)
assert core.config() == {"value": "core2"}
assert core.config.value() == "core2"
assert core.value_getter() == "core2"
assert services.config() == {"value": "services2"}
assert services.config.value() == "services2"
assert services.value_getter() == "services2"
def test_reset_overriding_cache():
# See: https://github.com/ets-labs/python-dependency-injector/issues/428
class Core(containers.DeclarativeContainer):
config = providers.Configuration()
greetings = providers.Factory(str, config.greeting)
class Application(containers.DeclarativeContainer):
config = providers.Configuration()
core = providers.Container(
Core,
config=config,
)
greetings = providers.Factory(str, config.greeting)
container = Application()
container.config.set("greeting", "Hello World")
assert container.greetings() == "Hello World"
assert container.core.greetings() == "Hello World"
container.config.set("greeting", "Hello Bob")
assert container.greetings() == "Hello Bob"
assert container.core.greetings() == "Hello Bob"
def test_reset_overriding_cache_for_option():
# See: https://github.com/ets-labs/python-dependency-injector/issues/428
class Core(containers.DeclarativeContainer):
config = providers.Configuration()
greetings = providers.Factory(str, config.greeting)
class Application(containers.DeclarativeContainer):
config = providers.Configuration()
core = providers.Container(
Core,
config=config.option,
)
greetings = providers.Factory(str, config.option.greeting)
container = Application()
container.config.set("option.greeting", "Hello World")
assert container.greetings() == "Hello World"
assert container.core.greetings() == "Hello World"
container.config.set("option.greeting", "Hello Bob")
assert container.greetings() == "Hello Bob"
assert container.core.greetings() == "Hello Bob"

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"""Configuration provider tests."""
import decimal
from dependency_injector import containers, providers, errors
from pytest import mark, raises
def test_init_optional(config):
config.set_name("myconfig")
config.set_default({"foo": "bar"})
config.set_strict(True)
assert config.get_name() == "myconfig"
assert config.get_default() == {"foo": "bar"}
assert config.get_strict() is True
def test_set_name_returns_self(config):
assert config.set_name("myconfig") is config
def test_set_default_returns_self(config):
assert config.set_default({}) is config
def test_set_strict_returns_self(config):
assert config.set_strict(True) is config
def test_default_name(config):
assert config.get_name() == "config"
def test_providers_are_providers(config):
assert providers.is_provider(config.a) is True
assert providers.is_provider(config.a.b) is True
assert providers.is_provider(config.a.b.c) is True
assert providers.is_provider(config.a.b.d) is True
def test_providers_are_not_delegates(config):
assert providers.is_delegated(config.a) is False
assert providers.is_delegated(config.a.b) is False
assert providers.is_delegated(config.a.b.c) is False
assert providers.is_delegated(config.a.b.d) is False
def test_providers_identity(config):
assert config.a is config.a
assert config.a.b is config.a.b
assert config.a.b.c is config.a.b.c
assert config.a.b.d is config.a.b.d
def test_get_name(config):
assert config.a.b.c.get_name() == "config.a.b.c"
def test_providers_value_setting(config):
a = config.a
ab = config.a.b
abc = config.a.b.c
abd = config.a.b.d
config.update({"a": {"b": {"c": 1, "d": 2}}})
assert a() == {"b": {"c": 1, "d": 2}}
assert ab() == {"c": 1, "d": 2}
assert abc() == 1
assert abd() == 2
def test_providers_with_already_set_value(config):
config.update({"a": {"b": {"c": 1, "d": 2}}})
a = config.a
ab = config.a.b
abc = config.a.b.c
abd = config.a.b.d
assert a() == {"b": {"c": 1, "d": 2}}
assert ab() == {"c": 1, "d": 2}
assert abc() == 1
assert abd() == 2
def test_as_int(config):
value_provider = providers.Callable(lambda value: value, config.test.as_int())
config.from_dict({"test": "123"})
value = value_provider()
assert value == 123
def test_as_float(config):
value_provider = providers.Callable(lambda value: value, config.test.as_float())
config.from_dict({"test": "123.123"})
value = value_provider()
assert value == 123.123
def test_as_(config):
value_provider = providers.Callable(
lambda value: value,
config.test.as_(decimal.Decimal),
)
config.from_dict({"test": "123.123"})
value = value_provider()
assert value == decimal.Decimal("123.123")
def test_required(config):
provider = providers.Callable(
lambda value: value,
config.a.required(),
)
with raises(errors.Error, match="Undefined configuration option \"config.a\""):
provider()
def test_required_defined_none(config):
provider = providers.Callable(
lambda value: value,
config.a.required(),
)
config.from_dict({"a": None})
assert provider() is None
def test_required_no_side_effect(config):
_ = providers.Callable(
lambda value: value,
config.a.required(),
)
assert config.a() is None
def test_required_as_(config):
provider = providers.List(
config.int_test.required().as_int(),
config.float_test.required().as_float(),
config._as_test.required().as_(decimal.Decimal),
)
config.from_dict({"int_test": "1", "float_test": "2.0", "_as_test": "3.0"})
assert provider() == [1, 2.0, decimal.Decimal("3.0")]
def test_providers_value_override(config):
a = config.a
ab = config.a.b
abc = config.a.b.c
abd = config.a.b.d
config.override({"a": {"b": {"c": 1, "d": 2}}})
assert a() == {"b": {"c": 1, "d": 2}}
assert ab() == {"c": 1, "d": 2}
assert abc() == 1
assert abd() == 2
def test_configuration_option_override_and_reset_override(config):
# Bug: https://github.com/ets-labs/python-dependency-injector/issues/319
config.from_dict({"a": {"b": {"c": 1}}})
assert config.a.b.c() == 1
with config.set("a.b.c", "xxx"):
assert config.a.b.c() == "xxx"
assert config.a.b.c() == 1
with config.a.b.c.override("yyy"):
assert config.a.b.c() == "yyy"
assert config.a.b.c() == 1
def test_providers_with_already_overridden_value(config):
config.override({"a": {"b": {"c": 1, "d": 2}}})
a = config.a
ab = config.a.b
abc = config.a.b.c
abd = config.a.b.d
assert a() == {"b": {"c": 1, "d": 2}}
assert ab() == {"c": 1, "d": 2}
assert abc() == 1
assert abd() == 2
def test_providers_with_default_value(config):
config.set_default({"a": {"b": {"c": 1, "d": 2}}})
a = config.a
ab = config.a.b
abc = config.a.b.c
abd = config.a.b.d
assert a() == {"b": {"c": 1, "d": 2}}
assert ab() == {"c": 1, "d": 2}
assert abc() == 1
assert abd() == 2
def test_providers_with_default_value_overriding(config):
config.set_default({"a": {"b": {"c": 1, "d": 2}}})
assert config.a() == {"b": {"c": 1, "d": 2}}
assert config.a.b() == {"c": 1, "d": 2}
assert config.a.b.c() == 1
assert config.a.b.d() == 2
config.override({"a": {"b": {"c": 3, "d": 4}}})
assert config.a() == {"b": {"c": 3, "d": 4}}
assert config.a.b() == {"c": 3, "d": 4}
assert config.a.b.c() == 3
assert config.a.b.d() == 4
config.reset_override()
assert config.a() == {"b": {"c": 1, "d": 2}}
assert config.a.b() == {"c": 1, "d": 2}
assert config.a.b.c() == 1
assert config.a.b.d() == 2
def test_value_of_undefined_option(config):
assert config.option() is None
@mark.parametrize("config_type", ["strict"])
def test_value_of_undefined_option_in_strict_mode(config):
with raises(errors.Error, match="Undefined configuration option \"config.option\""):
config.option()
@mark.parametrize("config_type", ["strict"])
def test_value_of_undefined_option_with_root_none_in_strict_mode(config):
config.override(None)
with raises(errors.Error, match="Undefined configuration option \"config.option\""):
config.option()
@mark.parametrize("config_type", ["strict"])
def test_value_of_defined_none_option_in_strict_mode(config):
config.from_dict({"a": None})
assert config.a() is None
def test_getting_of_special_attributes(config):
with raises(AttributeError):
config.__name__
def test_getting_of_special_attributes_from_child(config):
with raises(AttributeError):
config.child.__name__
def test_context_manager_alias():
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
container = Container()
with container.config as config:
config.override({"foo": "foo", "bar": "bar"})
assert container.config() == {"foo": "foo", "bar": "bar"}
assert config() == {"foo": "foo", "bar": "bar"}
assert container.config is config
def test_option_context_manager_alias():
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
container = Container()
with container.config.option as option:
option.override({"foo": "foo", "bar": "bar"})
assert container.config() == {"option": {"foo": "foo", "bar": "bar"}}
assert container.config.option() == {"foo": "foo", "bar": "bar"}
assert option() == {"foo": "foo", "bar": "bar"}
assert container.config.option is option
def test_missing_key(config):
# See: https://github.com/ets-labs/python-dependency-injector/issues/358
config.override(None)
value = config.key()
assert value is None
def test_deepcopy(config):
config_copy = providers.deepcopy(config)
assert isinstance(config_copy, providers.Configuration)
assert config is not config_copy
def test_deepcopy_from_memo(config):
config_copy_memo = providers.Configuration()
provider_copy = providers.deepcopy(config, memo={id(config): config_copy_memo})
assert provider_copy is config_copy_memo
def test_deepcopy_overridden(config):
object_provider = providers.Object(object())
config.override(object_provider)
provider_copy = providers.deepcopy(config)
object_provider_copy = provider_copy.overridden[0]
assert config is not provider_copy
assert isinstance(config, providers.Configuration)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_repr(config):
assert repr(config) == (
"<dependency_injector.providers."
"Configuration({0}) at {1}>".format(repr("config"), hex(id(config)))
)
def test_repr_child(config):
assert repr(config.a.b.c) == (
"<dependency_injector.providers."
"ConfigurationOption({0}) at {1}>".format(repr("config.a.b.c"), hex(id(config.a.b.c)))
)

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"""Configuration.from_dict() tests."""
from pytest import mark, raises
CONFIG_OPTIONS_1 = {
"section1": {
"value1": "1",
},
"section2": {
"value2": "2",
},
}
CONFIG_OPTIONS_2 = {
"section1": {
"value1": "11",
"value11": "11",
},
"section3": {
"value3": "3",
},
}
def test(config):
config.from_dict(CONFIG_OPTIONS_1)
assert config() == {"section1": {"value1": "1"}, "section2": {"value2": "2"}}
assert config.section1() == {"value1": "1"}
assert config.section1.value1() == "1"
assert config.section2() == {"value2": "2"}
assert config.section2.value2() == "2"
def test_merge(config):
config.from_dict(CONFIG_OPTIONS_1)
config.from_dict(CONFIG_OPTIONS_2)
assert config() == {
"section1": {
"value1": "11",
"value11": "11",
},
"section2": {
"value2": "2",
},
"section3": {
"value3": "3",
},
}
assert config.section1() == {"value1": "11", "value11": "11"}
assert config.section1.value1() == "11"
assert config.section1.value11() == "11"
assert config.section2() == {"value2": "2"}
assert config.section2.value2() == "2"
assert config.section3() == {"value3": "3"}
assert config.section3.value3() == "3"
def test_empty_dict(config):
config.from_dict({})
assert config() == {}
def test_option_empty_dict(config):
config.option.from_dict({})
assert config.option() == {}
@mark.parametrize("config_type", ["strict"])
def test_empty_dict_in_strict_mode(config):
with raises(ValueError):
config.from_dict({})
@mark.parametrize("config_type", ["strict"])
def test_option_empty_dict_in_strict_mode(config):
with raises(ValueError):
config.option.from_dict({})
def test_required_empty_dict(config):
with raises(ValueError):
config.from_dict({}, required=True)
def test_required_option_empty_dict(config):
with raises(ValueError):
config.option.from_dict({}, required=True)
@mark.parametrize("config_type", ["strict"])
def test_not_required_empty_dict_strict_mode(config):
config.from_dict({}, required=False)
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_not_required_option_empty_dict_strict_mode(config):
config.option.from_dict({}, required=False)
assert config.option() == {}
assert config() == {"option": {}}

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"""Configuration.from_env() tests."""
import os
from pytest import fixture, mark, raises
@fixture(autouse=True)
def environment_variables():
os.environ["CONFIG_TEST_ENV"] = "test-value"
yield
os.environ.pop("CONFIG_TEST_ENV", None)
def test(config):
config.from_env("CONFIG_TEST_ENV")
assert config() == "test-value"
def test_with_children(config):
config.section1.value1.from_env("CONFIG_TEST_ENV")
assert config() == {"section1": {"value1": "test-value"}}
assert config.section1() == {"value1": "test-value"}
assert config.section1.value1() == "test-value"
def test_default(config):
config.from_env("UNDEFINED_ENV", "default-value")
assert config() == "default-value"
def test_default_none(config):
config.from_env("UNDEFINED_ENV")
assert config() is None
def test_option_default_none(config):
config.option.from_env("UNDEFINED_ENV")
assert config.option() is None
@mark.parametrize("config_type", ["strict"])
def test_undefined_in_strict_mode(config):
with raises(ValueError):
config.from_env("UNDEFINED_ENV")
@mark.parametrize("config_type", ["strict"])
def test_option_undefined_in_strict_mode(config):
with raises(ValueError):
config.option.from_env("UNDEFINED_ENV")
def test_undefined_in_strict_mode_with_default(config):
config.from_env("UNDEFINED_ENV", "default-value")
assert config() == "default-value"
@mark.parametrize("config_type", ["strict"])
def test_option_undefined_in_strict_mode_with_default(config):
config.option.from_env("UNDEFINED_ENV", "default-value")
assert config.option() == "default-value"
def test_required_undefined(config):
with raises(ValueError):
config.from_env("UNDEFINED_ENV", required=True)
def test_required_undefined_with_default(config):
config.from_env("UNDEFINED_ENV", default="default-value", required=True)
assert config() == "default-value"
def test_option_required_undefined(config):
with raises(ValueError):
config.option.from_env("UNDEFINED_ENV", required=True)
def test_option_required_undefined_with_default(config):
config.option.from_env("UNDEFINED_ENV", default="default-value", required=True)
assert config.option() == "default-value"
@mark.parametrize("config_type", ["strict"])
def test_not_required_undefined_in_strict_mode(config):
config.from_env("UNDEFINED_ENV", required=False)
assert config() is None
@mark.parametrize("config_type", ["strict"])
def test_option_not_required_undefined_in_strict_mode(config):
config.option.from_env("UNDEFINED_ENV", required=False)
assert config.option() is None
@mark.parametrize("config_type", ["strict"])
def test_not_required_undefined_with_default_in_strict_mode(config):
config.from_env("UNDEFINED_ENV", default="default-value", required=False)
assert config() == "default-value"
@mark.parametrize("config_type", ["strict"])
def test_option_not_required_undefined_with_default_in_strict_mode(config):
config.option.from_env("UNDEFINED_ENV", default="default-value", required=False)
assert config.option() == "default-value"

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tests/unit/providers/configuration/test_from_ini_py2_py3.py Normal file
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"""Configuration.from_ini() tests."""
from dependency_injector import errors
from pytest import fixture, mark, raises
@fixture
def config_file_1(tmp_path):
config_file = str(tmp_path / "config_1.ini")
with open(config_file, "w") as file:
file.write(
"[section1]\n"
"value1=1\n"
"\n"
"[section2]\n"
"value2=2\n"
)
return config_file
@fixture
def config_file_2(tmp_path):
config_file = str(tmp_path / "config_2.ini")
with open(config_file, "w") as file:
file.write(
"[section1]\n"
"value1=11\n"
"value11=11\n"
"[section3]\n"
"value3=3\n"
)
return config_file
def test(config, config_file_1):
config.from_ini(config_file_1)
assert config() == {"section1": {"value1": "1"}, "section2": {"value2": "2"}}
assert config.section1() == {"value1": "1"}
assert config.section1.value1() == "1"
assert config.section2() == {"value2": "2"}
assert config.section2.value2() == "2"
def test_option(config, config_file_1):
config.option.from_ini(config_file_1)
assert config() == {"option": {"section1": {"value1": "1"}, "section2": {"value2": "2"}}}
assert config.option() == {"section1": {"value1": "1"}, "section2": {"value2": "2"}}
assert config.option.section1() == {"value1": "1"}
assert config.option.section1.value1() == "1"
assert config.option.section2() == {"value2": "2"}
assert config.option.section2.value2() == "2"
def test_merge(config, config_file_1, config_file_2):
config.from_ini(config_file_1)
config.from_ini(config_file_2)
assert config() == {
"section1": {
"value1": "11",
"value11": "11",
},
"section2": {
"value2": "2",
},
"section3": {
"value3": "3",
},
}
assert config.section1() == {"value1": "11", "value11": "11"}
assert config.section1.value1() == "11"
assert config.section1.value11() == "11"
assert config.section2() == {"value2": "2"}
assert config.section2.value2() == "2"
assert config.section3() == {"value3": "3"}
assert config.section3.value3() == "3"
def test_file_does_not_exist(config):
config.from_ini("./does_not_exist.ini")
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_file_does_not_exist_strict_mode(config):
with raises(IOError):
config.from_ini("./does_not_exist.ini")
def test_option_file_does_not_exist(config):
config.option.from_ini("does_not_exist.ini")
assert config.option.undefined() is None
@mark.parametrize("config_type", ["strict"])
def test_option_file_does_not_exist_strict_mode(config):
with raises(IOError):
config.option.from_ini("./does_not_exist.ini")
def test_required_file_does_not_exist(config):
with raises(IOError):
config.from_ini("./does_not_exist.ini", required=True)
def test_required_option_file_does_not_exist(config):
with raises(IOError):
config.option.from_ini("./does_not_exist.ini", required=True)
@mark.parametrize("config_type", ["strict"])
def test_not_required_file_does_not_exist_strict_mode(config):
config.from_ini("./does_not_exist.ini", required=False)
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_not_required_option_file_does_not_exist_strict_mode(config):
config.option.from_ini("./does_not_exist.ini", required=False)
with raises(errors.Error):
config.option()

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tests/unit/providers/configuration/test_from_ini_with_env_py2_py3.py Normal file
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"""Configuration.from_ini() with environment variables interpolation tests."""
import os
from pytest import fixture, mark, raises
@fixture
def config_file(tmp_path):
config_file = str(tmp_path / "config_1.ini")
with open(config_file, "w") as file:
file.write(
"[section1]\n"
"value1=${CONFIG_TEST_ENV}\n"
"value2=${CONFIG_TEST_PATH}/path\n"
)
return config_file
@fixture(autouse=True)
def environment_variables():
os.environ["CONFIG_TEST_ENV"] = "test-value"
os.environ["CONFIG_TEST_PATH"] = "test-path"
os.environ["DEFINED"] = "defined"
yield
os.environ.pop("CONFIG_TEST_ENV", None)
os.environ.pop("CONFIG_TEST_PATH", None)
os.environ.pop("DEFINED", None)
def test_env_variable_interpolation(config, config_file):
config.from_ini(config_file)
assert config() == {
"section1": {
"value1": "test-value",
"value2": "test-path/path",
},
}
assert config.section1() == {
"value1": "test-value",
"value2": "test-path/path",
}
assert config.section1.value1() == "test-value"
assert config.section1.value2() == "test-path/path"
def test_missing_envs_not_required(config, config_file):
del os.environ["CONFIG_TEST_ENV"]
del os.environ["CONFIG_TEST_PATH"]
config.from_ini(config_file)
assert config() == {
"section1": {
"value1": "",
"value2": "/path",
},
}
assert config.section1() == {
"value1": "",
"value2": "/path",
}
assert config.section1.value1() == ""
assert config.section1.value2() == "/path"
def test_missing_envs_required(config, config_file):
with open(config_file, "w") as file:
file.write(
"[section]\n"
"undefined=${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.from_ini(config_file, envs_required=True)
@mark.parametrize("config_type", ["strict"])
def test_missing_envs_strict_mode(config, config_file):
with open(config_file, "w") as file:
file.write(
"[section]\n"
"undefined=${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.from_ini(config_file)
def test_option_missing_envs_not_required(config, config_file):
del os.environ["CONFIG_TEST_ENV"]
del os.environ["CONFIG_TEST_PATH"]
config.option.from_ini(config_file)
assert config.option() == {
"section1": {
"value1": "",
"value2": "/path",
},
}
assert config.option.section1() == {
"value1": "",
"value2": "/path",
}
assert config.option.section1.value1() == ""
assert config.option.section1.value2() == "/path"
def test_option_missing_envs_required(config, config_file):
with open(config_file, "w") as file:
file.write(
"[section]\n"
"undefined=${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.option.from_ini(config_file, envs_required=True)
@mark.parametrize("config_type", ["strict"])
def test_option_missing_envs_strict_mode(config, config_file):
with open(config_file, "w") as file:
file.write(
"[section]\n"
"undefined=${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.option.from_ini(config_file)
def test_default_values(config, config_file):
with open(config_file, "w") as file:
file.write(
"[section]\n"
"defined_with_default=${DEFINED:default}\n"
"undefined_with_default=${UNDEFINED:default}\n"
"complex=${DEFINED}/path/${DEFINED:default}/${UNDEFINED}/${UNDEFINED:default}\n"
)
config.from_ini(config_file)
assert config.section() == {
"defined_with_default": "defined",
"undefined_with_default": "default",
"complex": "defined/path/defined//default",
}

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tests/unit/providers/configuration/test_from_pydantic_py36.py Normal file
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"""Configuration.from_pydantic() tests."""
import pydantic
from dependency_injector import providers, errors
from pytest import fixture, mark, raises
class Section11(pydantic.BaseModel):
value1 = 1
class Section12(pydantic.BaseModel):
value2 = 2
class Settings1(pydantic.BaseSettings):
section1 = Section11()
section2 = Section12()
class Section21(pydantic.BaseModel):
value1 = 11
value11 = 11
class Section3(pydantic.BaseModel):
value3 = 3
class Settings2(pydantic.BaseSettings):
section1 = Section21()
section3 = Section3()
@fixture
def no_pydantic_module_installed():
providers.pydantic = None
yield
providers.pydantic = pydantic
def test(config):
config.from_pydantic(Settings1())
assert config() == {"section1": {"value1": 1}, "section2": {"value2": 2}}
assert config.section1() == {"value1": 1}
assert config.section1.value1() == 1
assert config.section2() == {"value2": 2}
assert config.section2.value2() == 2
def test_kwarg(config):
config.from_pydantic(Settings1(), exclude={"section2"})
assert config() == {"section1": {"value1": 1}}
assert config.section1() == {"value1": 1}
assert config.section1.value1() == 1
def test_merge(config):
config.from_pydantic(Settings1())
config.from_pydantic(Settings2())
assert config() == {
"section1": {
"value1": 11,
"value11": 11,
},
"section2": {
"value2": 2,
},
"section3": {
"value3": 3,
},
}
assert config.section1() == {"value1": 11, "value11": 11}
assert config.section1.value1() == 11
assert config.section1.value11() == 11
assert config.section2() == {"value2": 2}
assert config.section2.value2() == 2
assert config.section3() == {"value3": 3}
assert config.section3.value3() == 3
def test_empty_settings(config):
config.from_pydantic(pydantic.BaseSettings())
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_empty_settings_strict_mode(config):
with raises(ValueError):
config.from_pydantic(pydantic.BaseSettings())
def test_option_empty_settings(config):
config.option.from_pydantic(pydantic.BaseSettings())
assert config.option() == {}
@mark.parametrize("config_type", ["strict"])
def test_option_empty_settings_strict_mode(config):
with raises(ValueError):
config.option.from_pydantic(pydantic.BaseSettings())
def test_required_empty_settings(config):
with raises(ValueError):
config.from_pydantic(pydantic.BaseSettings(), required=True)
def test_required_option_empty_settings(config):
with raises(ValueError):
config.option.from_pydantic(pydantic.BaseSettings(), required=True)
@mark.parametrize("config_type", ["strict"])
def test_not_required_empty_settings_strict_mode(config):
config.from_pydantic(pydantic.BaseSettings(), required=False)
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_not_required_option_empty_settings_strict_mode(config):
config.option.from_pydantic(pydantic.BaseSettings(), required=False)
assert config.option() == {}
assert config() == {"option": {}}
def test_not_instance_of_settings(config):
with raises(errors.Error) as error:
config.from_pydantic({})
assert error.value.args[0] == (
"Unable to recognize settings instance, expect \"pydantic.BaseSettings\", "
"got {0} instead".format({})
)
def test_option_not_instance_of_settings(config):
with raises(errors.Error) as error:
config.option.from_pydantic({})
assert error.value.args[0] == (
"Unable to recognize settings instance, expect \"pydantic.BaseSettings\", "
"got {0} instead".format({})
)
def test_subclass_instead_of_instance(config):
with raises(errors.Error) as error:
config.from_pydantic(Settings1)
assert error.value.args[0] == (
"Got settings class, but expect instance: "
"instead \"Settings1\" use \"Settings1()\""
)
def test_option_subclass_instead_of_instance(config):
with raises(errors.Error) as error:
config.option.from_pydantic(Settings1)
assert error.value.args[0] == (
"Got settings class, but expect instance: "
"instead \"Settings1\" use \"Settings1()\""
)
@mark.usefixtures("no_pydantic_module_installed")
def test_no_pydantic_installed(config):
with raises(errors.Error) as error:
config.from_pydantic(Settings1())
assert error.value.args[0] == (
"Unable to load pydantic configuration - pydantic is not installed. "
"Install pydantic or install Dependency Injector with pydantic extras: "
"\"pip install dependency-injector[pydantic]\""
)
@mark.usefixtures("no_pydantic_module_installed")
def test_option_no_pydantic_installed(config):
with raises(errors.Error) as error:
config.option.from_pydantic(Settings1())
assert error.value.args[0] == (
"Unable to load pydantic configuration - pydantic is not installed. "
"Install pydantic or install Dependency Injector with pydantic extras: "
"\"pip install dependency-injector[pydantic]\""
)

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tests/unit/providers/configuration/test_from_value_py2_py3.py Normal file
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"""Configuration.from_value() tests."""
def test_from_value(config):
test_value = 123321
config.from_value(test_value)
assert config() == test_value
def test_option_from_value(config):
test_value_1 = 123
test_value_2 = 321
config.option1.from_value(test_value_1)
config.option2.from_value(test_value_2)
assert config() == {"option1": test_value_1, "option2": test_value_2}
assert config.option1() == test_value_1
assert config.option2() == test_value_2

142
tests/unit/providers/configuration/test_from_yaml_py2_py3.py Normal file
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"""Configuration.from_yaml() tests."""
from dependency_injector import providers, errors
from pytest import fixture, mark, raises
@fixture
def config_file_1(tmp_path):
config_file = str(tmp_path / "config_1.ini")
with open(config_file, "w") as file:
file.write(
"section1:\n"
" value1: 1\n"
"\n"
"section2:\n"
" value2: 2\n"
)
return config_file
@fixture
def config_file_2(tmp_path):
config_file = str(tmp_path / "config_2.ini")
with open(config_file, "w") as file:
file.write(
"section1:\n"
" value1: 11\n"
" value11: 11\n"
"section3:\n"
" value3: 3\n"
)
return config_file
@fixture
def no_yaml_module_installed():
yaml = providers.yaml
providers.yaml = None
yield
providers.yaml = yaml
def test(config, config_file_1):
config.from_yaml(config_file_1)
assert config() == {"section1": {"value1": 1}, "section2": {"value2": 2}}
assert config.section1() == {"value1": 1}
assert config.section1.value1() == 1
assert config.section2() == {"value2": 2}
assert config.section2.value2() == 2
def test_merge(config, config_file_1, config_file_2):
config.from_yaml(config_file_1)
config.from_yaml(config_file_2)
assert config() == {
"section1": {
"value1": 11,
"value11": 11,
},
"section2": {
"value2": 2,
},
"section3": {
"value3": 3,
},
}
assert config.section1() == {"value1": 11, "value11": 11}
assert config.section1.value1() == 11
assert config.section1.value11() == 11
assert config.section2() == {"value2": 2}
assert config.section2.value2() == 2
assert config.section3() == {"value3": 3}
assert config.section3.value3() == 3
def test_file_does_not_exist(config):
config.from_yaml("./does_not_exist.yml")
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_file_does_not_exist_strict_mode(config):
with raises(IOError):
config.from_yaml("./does_not_exist.yml")
def test_option_file_does_not_exist(config):
config.option.from_yaml("./does_not_exist.yml")
assert config.option() is None
@mark.parametrize("config_type", ["strict"])
def test_option_file_does_not_exist_strict_mode(config):
with raises(IOError):
config.option.from_yaml("./does_not_exist.yml")
def test_required_file_does_not_exist(config):
with raises(IOError):
config.from_yaml("./does_not_exist.yml", required=True)
def test_required_option_file_does_not_exist(config):
with raises(IOError):
config.option.from_yaml("./does_not_exist.yml", required=True)
@mark.parametrize("config_type", ["strict"])
def test_not_required_file_does_not_exist_strict_mode(config):
config.from_yaml("./does_not_exist.yml", required=False)
assert config() == {}
@mark.parametrize("config_type", ["strict"])
def test_not_required_option_file_does_not_exist_strict_mode(config):
config.option.from_yaml("./does_not_exist.yml", required=False)
with raises(errors.Error):
config.option()
@mark.usefixtures("no_yaml_module_installed")
def test_no_yaml_installed(config, config_file_1):
with raises(errors.Error) as error:
config.from_yaml(config_file_1)
assert error.value.args[0] == (
"Unable to load yaml configuration - PyYAML is not installed. "
"Install PyYAML or install Dependency Injector with yaml extras: "
"\"pip install dependency-injector[yaml]\""
)
@mark.usefixtures("no_yaml_module_installed")
def test_option_no_yaml_installed(config, config_file_1):
with raises(errors.Error) as error:
config.option.from_yaml(config_file_1)
assert error.value.args[0] == (
"Unable to load yaml configuration - PyYAML is not installed. "
"Install PyYAML or install Dependency Injector with yaml extras: "
"\"pip install dependency-injector[yaml]\""
)

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tests/unit/providers/configuration/test_from_yaml_with_env_py2_py3.py Normal file
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"""Configuration.from_yaml() with environment variables interpolation tests."""
import os
import yaml
from pytest import fixture, mark, raises
@fixture
def config_file(tmp_path):
config_file = str(tmp_path / "config_1.ini")
with open(config_file, "w") as file:
file.write(
"section1:\n"
" value1: ${CONFIG_TEST_ENV}\n"
" value2: ${CONFIG_TEST_PATH}/path\n"
)
return config_file
@fixture(autouse=True)
def environment_variables():
os.environ["CONFIG_TEST_ENV"] = "test-value"
os.environ["CONFIG_TEST_PATH"] = "test-path"
os.environ["DEFINED"] = "defined"
yield
os.environ.pop("CONFIG_TEST_ENV", None)
os.environ.pop("CONFIG_TEST_PATH", None)
os.environ.pop("DEFINED", None)
def test_env_variable_interpolation(config, config_file):
config.from_yaml(config_file)
assert config() == {
"section1": {
"value1": "test-value",
"value2": "test-path/path",
},
}
assert config.section1() == {
"value1": "test-value",
"value2": "test-path/path",
}
assert config.section1.value1() == "test-value"
assert config.section1.value2() == "test-path/path"
def test_missing_envs_not_required(config, config_file):
del os.environ["CONFIG_TEST_ENV"]
del os.environ["CONFIG_TEST_PATH"]
config.from_yaml(config_file)
assert config() == {
"section1": {
"value1": None,
"value2": "/path",
},
}
assert config.section1() == {
"value1": None,
"value2": "/path",
}
assert config.section1.value1() is None
assert config.section1.value2() == "/path"
def test_missing_envs_required(config, config_file):
with open(config_file, "w") as file:
file.write(
"section:\n"
" undefined: ${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.from_yaml(config_file, envs_required=True)
@mark.parametrize("config_type", ["strict"])
def test_missing_envs_strict_mode(config, config_file):
with open(config_file, "w") as file:
file.write(
"section:\n"
" undefined: ${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.from_yaml(config_file)
def test_option_missing_envs_not_required(config, config_file):
del os.environ["CONFIG_TEST_ENV"]
del os.environ["CONFIG_TEST_PATH"]
config.option.from_yaml(config_file)
assert config.option() == {
"section1": {
"value1": None,
"value2": "/path",
},
}
assert config.option.section1() == {
"value1": None,
"value2": "/path",
}
assert config.option.section1.value1() is None
assert config.option.section1.value2() == "/path"
def test_option_missing_envs_required(config, config_file):
with open(config_file, "w") as file:
file.write(
"section:\n"
" undefined: ${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.option.from_yaml(config_file, envs_required=True)
@mark.parametrize("config_type", ["strict"])
def test_option_missing_envs_strict_mode(config, config_file):
with open(config_file, "w") as file:
file.write(
"section:\n"
" undefined: ${UNDEFINED}\n"
)
with raises(ValueError, match="Missing required environment variable \"UNDEFINED\""):
config.option.from_yaml(config_file)
def test_default_values(config, config_file):
with open(config_file, "w") as file:
file.write(
"section:\n"
" defined_with_default: ${DEFINED:default}\n"
" undefined_with_default: ${UNDEFINED:default}\n"
" complex: ${DEFINED}/path/${DEFINED:default}/${UNDEFINED}/${UNDEFINED:default}\n"
)
config.from_yaml(config_file)
assert config.section() == {
"defined_with_default": "defined",
"undefined_with_default": "default",
"complex": "defined/path/defined//default",
}
def test_option_env_variable_interpolation(config, config_file):
config.option.from_yaml(config_file)
assert config.option() == {
"section1": {
"value1": "test-value",
"value2": "test-path/path",
},
}
assert config.option.section1() == {
"value1": "test-value",
"value2": "test-path/path",
}
assert config.option.section1.value1() == "test-value"
assert config.option.section1.value2() == "test-path/path"
def test_env_variable_interpolation_custom_loader(config, config_file):
config.from_yaml(config_file, loader=yaml.UnsafeLoader)
assert config.section1() == {
"value1": "test-value",
"value2": "test-path/path",
}
assert config.section1.value1() == "test-value"
assert config.section1.value2() == "test-path/path"
def test_option_env_variable_interpolation_custom_loader(config, config_file):
config.option.from_yaml(config_file, loader=yaml.UnsafeLoader)
assert config.option.section1() == {
"value1": "test-value",
"value2": "test-path/path",
}
assert config.option.section1.value1() == "test-value"
assert config.option.section1.value2() == "test-path/path"

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tests/unit/providers/coroutines/__init__.py Normal file
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"""Tests for coroutine providers."""

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"""Common test artifacts."""
async def example(arg1, arg2, arg3, arg4):
return arg1, arg2, arg3, arg4

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"""AbstractCoroutine provider tests."""
import asyncio
from dependency_injector import providers, errors
from pytest import mark, raises
from .common import example
def test_inheritance():
assert isinstance(providers.AbstractCoroutine(example), providers.Coroutine)
@mark.asyncio
@mark.filterwarnings("ignore")
async def test_call_overridden_by_coroutine():
@asyncio.coroutine
def abstract_example():
raise RuntimeError("Should not be raised")
provider = providers.AbstractCoroutine(abstract_example)
provider.override(providers.Coroutine(example))
result = await provider(1, 2, 3, 4)
assert result == (1, 2, 3, 4)
@mark.asyncio
@mark.filterwarnings("ignore")
async def test_call_overridden_by_delegated_coroutine():
@asyncio.coroutine
def abstract_example():
raise RuntimeError("Should not be raised")
provider = providers.AbstractCoroutine(abstract_example)
provider.override(providers.DelegatedCoroutine(example))
result = await provider(1, 2, 3, 4)
assert result == (1, 2, 3, 4)
def test_call_not_overridden():
provider = providers.AbstractCoroutine(example)
with raises(errors.Error):
provider(1, 2, 3, 4)
def test_override_by_not_coroutine():
provider = providers.AbstractCoroutine(example)
with raises(errors.Error):
provider.override(providers.Factory(object))
def test_provide_not_implemented():
provider = providers.AbstractCoroutine(example)
with raises(NotImplementedError):
provider._provide((1, 2, 3, 4), dict())
def test_repr():
provider = providers.AbstractCoroutine(example)
assert repr(provider) == (
"<dependency_injector.providers."
"AbstractCoroutine({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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tests/unit/providers/coroutines/test_coroutine_delegate_py35.py Normal file
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"""CoroutineDelegate provider tests."""
from dependency_injector import providers, errors
from pytest import raises
from .common import example
def test_is_delegate():
provider = providers.Coroutine(example)
delegate = providers.CoroutineDelegate(provider)
assert isinstance(delegate, providers.Delegate)
def test_init_with_not_coroutine():
with raises(errors.Error):
providers.CoroutineDelegate(providers.Object(object()))

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"""Coroutine provider tests."""
from dependency_injector import providers, errors
from pytest import mark, raises
from .common import example
def test_init_with_coroutine():
assert isinstance(providers.Coroutine(example), providers.Coroutine)
def test_init_with_not_coroutine():
with raises(errors.Error):
providers.Coroutine(lambda: None)
@mark.asyncio
async def test_init_optional_provides():
provider = providers.Coroutine()
provider.set_provides(example)
result = await provider(1, 2, 3, 4)
assert result == (1, 2, 3, 4)
assert provider.provides is example
def test_set_provides_returns_self():
provider = providers.Coroutine()
assert provider.set_provides(example) is provider
@mark.asyncio
async def test_call_with_positional_args():
provider = providers.Coroutine(example, 1, 2, 3, 4)
result = await provider()
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_call_with_keyword_args():
provider = providers.Coroutine(example, arg1=1, arg2=2, arg3=3, arg4=4)
result = await provider()
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_call_with_positional_and_keyword_args():
provider = providers.Coroutine(example, 1, 2, arg3=3, arg4=4)
result = await provider()
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_call_with_context_args():
provider = providers.Coroutine(example, 1, 2)
result = await provider(3, 4)
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_call_with_context_kwargs():
provider = providers.Coroutine(example, arg1=1)
result = await provider(arg2=2, arg3=3, arg4=4)
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_call_with_context_args_and_kwargs():
provider = providers.Coroutine(example, 1)
result = await provider(2, arg3=3, arg4=4)
assert result == (1, 2, 3, 4)
@mark.asyncio
async def test_fluent_interface():
provider = providers.Coroutine(example) \
.add_args(1, 2) \
.add_kwargs(arg3=3, arg4=4)
result = await provider()
assert result == (1, 2, 3, 4)
def test_set_args():
provider = providers.Coroutine(example) \
.add_args(1, 2) \
.set_args(3, 4)
assert provider.args == (3, 4)
def test_set_kwargs():
provider = providers.Coroutine(example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
assert provider.kwargs == dict(init_arg3=4, init_arg4=5)
def test_clear_args():
provider = providers.Coroutine(example) \
.add_args(1, 2) \
.clear_args()
assert provider.args == tuple()
def test_clear_kwargs():
provider = providers.Coroutine(example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
assert provider.kwargs == dict()
def test_call_overridden():
provider = providers.Coroutine(example)
provider.override(providers.Object((4, 3, 2, 1)))
provider.override(providers.Object((1, 2, 3, 4)))
assert provider() == (1, 2, 3, 4)
def test_deepcopy():
provider = providers.Coroutine(example)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert provider.provides is provider_copy.provides
assert isinstance(provider, providers.Coroutine)
def test_deepcopy_from_memo():
provider = providers.Coroutine(example)
provider_copy_memo = providers.Coroutine(example)
provider_copy = providers.deepcopy(provider, memo={id(provider): provider_copy_memo})
assert provider_copy is provider_copy_memo
def test_deepcopy_args():
provider = providers.Coroutine(example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
assert dependent_provider1.provides is dependent_provider_copy1.provides
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.provides is dependent_provider_copy2.provides
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_kwargs():
provider = providers.Coroutine(example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
assert dependent_provider1.provides is dependent_provider_copy1.provides
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.provides is dependent_provider_copy2.provides
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_overridden():
provider = providers.Coroutine(example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert provider.provides is provider_copy.provides
assert isinstance(provider, providers.Callable)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_repr():
provider = providers.Coroutine(example)
assert repr(provider) == (
"<dependency_injector.providers."
"Coroutine({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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"""DelegatedCoroutine provider tests."""
from dependency_injector import providers
from .common import example
def test_inheritance():
assert isinstance(providers.DelegatedCoroutine(example), providers.Coroutine)
def test_is_provider():
assert providers.is_provider(providers.DelegatedCoroutine(example)) is True
def test_is_delegated_provider():
provider = providers.DelegatedCoroutine(example)
assert providers.is_delegated(provider) is True
def test_repr():
provider = providers.DelegatedCoroutine(example)
assert repr(provider) == (
"<dependency_injector.providers."
"DelegatedCoroutine({0}) at {1}>".format(repr(example), hex(id(provider)))
)

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"""Tests for factories."""

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tests/unit/providers/factories/common.py Normal file
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"""Common test artifacts."""
class Example:
def __init__(self, init_arg1=None, init_arg2=None, init_arg3=None, init_arg4=None):
self.init_arg1 = init_arg1
self.init_arg2 = init_arg2
self.init_arg3 = init_arg3
self.init_arg4 = init_arg4
self.attribute1 = None
self.attribute2 = None
class ExampleA(Example):
pass
class ExampleB(Example):
pass

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tests/unit/providers/factories/test_abstract_factory_py2_py3.py Normal file
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"""AbstractFactory provider tests."""
from dependency_injector import providers, errors
from pytest import raises
from .common import Example
def test_inheritance():
assert isinstance(providers.AbstractFactory(Example), providers.Factory)
def test_call_overridden_by_factory():
provider = providers.AbstractFactory(object)
provider.override(providers.Factory(Example))
assert isinstance(provider(), Example)
def test_call_overridden_by_delegated_factory():
provider = providers.AbstractFactory(object)
provider.override(providers.DelegatedFactory(Example))
assert isinstance(provider(), Example)
def test_call_not_overridden():
provider = providers.AbstractFactory(object)
with raises(errors.Error):
provider()
def test_override_by_not_factory():
provider = providers.AbstractFactory(object)
with raises(errors.Error):
provider.override(providers.Callable(object))
def test_provide_not_implemented():
provider = providers.AbstractFactory(Example)
with raises(NotImplementedError):
provider._provide(tuple(), dict())
def test_repr():
provider = providers.AbstractFactory(Example)
assert repr(provider) == (
"<dependency_injector.providers."
"AbstractFactory({0}) at {1}>".format(repr(Example), hex(id(provider)))
)

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tests/unit/providers/factories/test_delegated_factory_py2_py3.py Normal file
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"""DelegatedFactory provider tests."""
from dependency_injector import providers
from .common import Example
def test_inheritance():
assert isinstance(providers.DelegatedFactory(object), providers.Factory)
def test_is_provider():
assert providers.is_provider(providers.DelegatedFactory(object)) is True
def test_is_delegated_provider():
assert providers.is_delegated(providers.DelegatedFactory(object)) is True
def test_repr():
provider = providers.DelegatedFactory(Example)
assert repr(provider) == (
"<dependency_injector.providers."
"DelegatedFactory({0}) at {1}>".format(repr(Example), hex(id(provider)))
)

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tests/unit/providers/factories/test_factory_aggregate_py2_py3.py Normal file
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"""FactoryAggregate provider tests."""
from dependency_injector import providers, errors
from pytest import fixture, mark, raises
from .common import ExampleA, ExampleB
@fixture
def factory_a():
return providers.Factory(ExampleA)
@fixture
def factory_b():
return providers.Factory(ExampleB)
@fixture
def factory_type():
return "default"
@fixture
def factory_aggregate(factory_type, factory_a, factory_b):
if factory_type == "empty":
return providers.FactoryAggregate()
elif factory_type == "non-string-keys":
return providers.FactoryAggregate({
ExampleA: factory_a,
ExampleB: factory_b,
})
elif factory_type == "default":
return providers.FactoryAggregate(
example_a=factory_a,
example_b=factory_b,
)
else:
raise ValueError("Unknown factory type \"{0}\"".format(factory_type))
def test_is_provider(factory_aggregate):
assert providers.is_provider(factory_aggregate) is True
def test_is_delegated_provider(factory_aggregate):
assert providers.is_delegated(factory_aggregate) is True
@mark.parametrize("factory_type", ["non-string-keys"])
def test_init_with_non_string_keys(factory_aggregate, factory_a, factory_b):
object_a = factory_aggregate(ExampleA, 1, 2, init_arg3=3, init_arg4=4)
object_b = factory_aggregate(ExampleB, 11, 22, init_arg3=33, init_arg4=44)
assert isinstance(object_a, ExampleA)
assert object_a.init_arg1 == 1
assert object_a.init_arg2 == 2
assert object_a.init_arg3 == 3
assert object_a.init_arg4 == 4
assert isinstance(object_b, ExampleB)
assert object_b.init_arg1 == 11
assert object_b.init_arg2 == 22
assert object_b.init_arg3 == 33
assert object_b.init_arg4 == 44
assert factory_aggregate.factories == {
ExampleA: factory_a,
ExampleB: factory_b,
}
def test_init_with_not_a_factory():
with raises(errors.Error):
providers.FactoryAggregate(
example_a=providers.Factory(ExampleA),
example_b=object(),
)
@mark.parametrize("factory_type", ["empty"])
def test_init_optional_factories(factory_aggregate, factory_a, factory_b):
factory_aggregate.set_factories(
example_a=factory_a,
example_b=factory_b,
)
assert factory_aggregate.factories == {
"example_a": factory_a,
"example_b": factory_b,
}
assert isinstance(factory_aggregate("example_a"), ExampleA)
assert isinstance(factory_aggregate("example_b"), ExampleB)
@mark.parametrize("factory_type", ["non-string-keys"])
def test_set_factories_with_non_string_keys(factory_aggregate, factory_a, factory_b):
factory_aggregate.set_factories({
ExampleA: factory_a,
ExampleB: factory_b,
})
object_a = factory_aggregate(ExampleA, 1, 2, init_arg3=3, init_arg4=4)
object_b = factory_aggregate(ExampleB, 11, 22, init_arg3=33, init_arg4=44)
assert isinstance(object_a, ExampleA)
assert object_a.init_arg1 == 1
assert object_a.init_arg2 == 2
assert object_a.init_arg3 == 3
assert object_a.init_arg4 == 4
assert isinstance(object_b, ExampleB)
assert object_b.init_arg1 == 11
assert object_b.init_arg2 == 22
assert object_b.init_arg3 == 33
assert object_b.init_arg4 == 44
assert factory_aggregate.factories == {
ExampleA: factory_a,
ExampleB: factory_b,
}
def test_set_factories_returns_self(factory_aggregate, factory_a):
assert factory_aggregate.set_factories(example_a=factory_a) is factory_aggregate
def test_call(factory_aggregate):
object_a = factory_aggregate("example_a", 1, 2, init_arg3=3, init_arg4=4)
object_b = factory_aggregate("example_b", 11, 22, init_arg3=33, init_arg4=44)
assert isinstance(object_a, ExampleA)
assert object_a.init_arg1 == 1
assert object_a.init_arg2 == 2
assert object_a.init_arg3 == 3
assert object_a.init_arg4 == 4
assert isinstance(object_b, ExampleB)
assert object_b.init_arg1 == 11
assert object_b.init_arg2 == 22
assert object_b.init_arg3 == 33
assert object_b.init_arg4 == 44
def test_call_factory_name_as_kwarg(factory_aggregate):
object_a = factory_aggregate(
factory_name="example_a",
init_arg1=1,
init_arg2=2,
init_arg3=3,
init_arg4=4,
)
assert isinstance(object_a, ExampleA)
assert object_a.init_arg1 == 1
assert object_a.init_arg2 == 2
assert object_a.init_arg3 == 3
assert object_a.init_arg4 == 4
def test_call_no_factory_name(factory_aggregate):
with raises(TypeError):
factory_aggregate()
def test_call_no_such_provider(factory_aggregate):
with raises(errors.NoSuchProviderError):
factory_aggregate("unknown")
def test_overridden(factory_aggregate):
with raises(errors.Error):
factory_aggregate.override(providers.Object(object()))
def test_getattr(factory_aggregate, factory_a, factory_b):
assert factory_aggregate.example_a is factory_a
assert factory_aggregate.example_b is factory_b
def test_getattr_no_such_provider(factory_aggregate):
with raises(errors.NoSuchProviderError):
factory_aggregate.unknown
def test_factories(factory_aggregate, factory_a, factory_b):
assert factory_aggregate.factories == dict(
example_a=factory_a,
example_b=factory_b,
)
def test_deepcopy(factory_aggregate):
provider_copy = providers.deepcopy(factory_aggregate)
assert factory_aggregate is not provider_copy
assert isinstance(provider_copy, type(factory_aggregate))
assert factory_aggregate.example_a is not provider_copy.example_a
assert isinstance(factory_aggregate.example_a, type(provider_copy.example_a))
assert factory_aggregate.example_a.cls is provider_copy.example_a.cls
assert factory_aggregate.example_b is not provider_copy.example_b
assert isinstance(factory_aggregate.example_b, type(provider_copy.example_b))
assert factory_aggregate.example_b.cls is provider_copy.example_b.cls
@mark.parametrize("factory_type", ["non-string-keys"])
def test_deepcopy_with_non_string_keys(factory_aggregate):
provider_copy = providers.deepcopy(factory_aggregate)
assert factory_aggregate is not provider_copy
assert isinstance(provider_copy, type(factory_aggregate))
assert factory_aggregate.factories[ExampleA] is not provider_copy.factories[ExampleA]
assert isinstance(factory_aggregate.factories[ExampleA], type(provider_copy.factories[ExampleA]))
assert factory_aggregate.factories[ExampleA].cls is provider_copy.factories[ExampleA].cls
assert factory_aggregate.factories[ExampleB] is not provider_copy.factories[ExampleB]
assert isinstance(factory_aggregate.factories[ExampleB], type(provider_copy.factories[ExampleB]))
assert factory_aggregate.factories[ExampleB].cls is provider_copy.factories[ExampleB].cls
def test_repr(factory_aggregate):
assert repr(factory_aggregate) == (
"<dependency_injector.providers."
"FactoryAggregate({0}) at {1}>".format(
repr(factory_aggregate.factories),
hex(id(factory_aggregate)),
)
)

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tests/unit/providers/factories/test_factory_delegate_py2_py3.py Normal file
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"""Factory delegate provider tests."""
from dependency_injector import providers, errors
from pytest import fixture, raises
@fixture
def factory():
return providers.Factory(object)
@fixture
def delegate(factory):
return providers.FactoryDelegate(factory)
def test_is_delegate(delegate):
assert isinstance(delegate, providers.Delegate)
def test_init_with_not_factory():
with raises(errors.Error):
providers.FactoryDelegate(providers.Object(object()))

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tests/unit/providers/factories/test_factory_py2_py3.py Normal file
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"""Factory provider tests."""
import sys
from dependency_injector import providers, errors
from pytest import raises
from .common import Example
def test_is_provider():
assert providers.is_provider(providers.Factory(Example)) is True
def test_init_with_not_callable():
with raises(errors.Error):
providers.Factory(123)
def test_init_optional_provides():
provider = providers.Factory()
provider.set_provides(object)
assert provider.provides is object
assert isinstance(provider(), object)
def test_set_provides_returns_():
provider = providers.Factory()
assert provider.set_provides(object) is provider
def test_init_with_valid_provided_type():
class ExampleProvider(providers.Factory):
provided_type = Example
example_provider = ExampleProvider(Example, 1, 2)
assert isinstance(example_provider(), Example)
def test_init_with_valid_provided_subtype():
class ExampleProvider(providers.Factory):
provided_type = Example
class NewExample(Example):
pass
example_provider = ExampleProvider(NewExample, 1, 2)
assert isinstance(example_provider(), NewExample)
def test_init_with_invalid_provided_type():
class ExampleProvider(providers.Factory):
provided_type = Example
with raises(errors.Error):
ExampleProvider(list)
def test_provided_instance_provider():
provider = providers.Factory(Example)
assert isinstance(provider.provided, providers.ProvidedInstance)
def test_call():
provider = providers.Factory(Example)
instance1 = provider()
instance2 = provider()
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_positional_args():
provider = providers.Factory(Example, "i1", "i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_keyword_args():
provider = providers.Factory(Example, init_arg1="i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_positional_and_keyword_args():
provider = providers.Factory(Example, "i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_attributes():
provider = providers.Factory(Example)
provider.add_attributes(attribute1="a1", attribute2="a2")
instance1 = provider()
instance2 = provider()
assert instance1.attribute1 == "a1"
assert instance1.attribute2 == "a2"
assert instance2.attribute1 == "a1"
assert instance2.attribute2 == "a2"
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_context_args():
provider = providers.Factory(Example, 11, 22)
instance = provider(33, 44)
assert instance.init_arg1 == 11
assert instance.init_arg2 == 22
assert instance.init_arg3 == 33
assert instance.init_arg4 == 44
def test_call_with_context_kwargs():
provider = providers.Factory(Example, init_arg1=1)
instance1 = provider(init_arg2=22)
assert instance1.init_arg1 == 1
assert instance1.init_arg2 == 22
instance2 = provider(init_arg1=11, init_arg2=22)
assert instance2.init_arg1 == 11
assert instance2.init_arg2 == 22
def test_call_with_context_args_and_kwargs():
provider = providers.Factory(Example, 11)
instance = provider(22, init_arg3=33, init_arg4=44)
assert instance.init_arg1 == 11
assert instance.init_arg2 == 22
assert instance.init_arg3 == 33
assert instance.init_arg4 == 44
def test_call_with_deep_context_kwargs():
class Regularizer:
def __init__(self, alpha):
self.alpha = alpha
class Loss:
def __init__(self, regularizer):
self.regularizer = regularizer
class ClassificationTask:
def __init__(self, loss):
self.loss = loss
class Algorithm:
def __init__(self, task):
self.task = task
algorithm_factory = providers.Factory(
Algorithm,
task=providers.Factory(
ClassificationTask,
loss=providers.Factory(
Loss,
regularizer=providers.Factory(
Regularizer,
),
),
),
)
algorithm_1 = algorithm_factory(task__loss__regularizer__alpha=0.5)
algorithm_2 = algorithm_factory(task__loss__regularizer__alpha=0.7)
algorithm_3 = algorithm_factory(task__loss__regularizer=Regularizer(alpha=0.8))
assert algorithm_1.task.loss.regularizer.alpha == 0.5
assert algorithm_2.task.loss.regularizer.alpha == 0.7
assert algorithm_3.task.loss.regularizer.alpha == 0.8
def test_fluent_interface():
provider = providers.Factory(Example) \
.add_args(1, 2) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.add_attributes(attribute1=5, attribute2=6)
instance = provider()
assert instance.init_arg1 == 1
assert instance.init_arg2 == 2
assert instance.init_arg3 == 3
assert instance.init_arg4 == 4
assert instance.attribute1 == 5
assert instance.attribute2 == 6
def test_set_args():
provider = providers.Factory(Example) \
.add_args(1, 2) \
.set_args(3, 4)
assert provider.args == (3, 4)
def test_set_kwargs():
provider = providers.Factory(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
assert provider.kwargs == dict(init_arg3=4, init_arg4=5)
def test_set_attributes():
provider = providers.Factory(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.set_attributes(attribute1=6, attribute2=7)
assert provider.attributes == dict(attribute1=6, attribute2=7)
def test_clear_args():
provider = providers.Factory(Example) \
.add_args(1, 2) \
.clear_args()
assert provider.args == tuple()
def test_clear_kwargs():
provider = providers.Factory(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
assert provider.kwargs == dict()
def test_clear_attributes():
provider = providers.Factory(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.clear_attributes()
assert provider.attributes == dict()
def test_call_overridden():
provider = providers.Factory(Example)
overriding_provider1 = providers.Factory(dict)
overriding_provider2 = providers.Factory(list)
provider.override(overriding_provider1)
provider.override(overriding_provider2)
instance1 = provider()
instance2 = provider()
assert instance1 is not instance2
assert isinstance(instance1, list)
assert isinstance(instance2, list)
def test_deepcopy():
provider = providers.Factory(Example)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert provider.cls is provider_copy.cls
assert isinstance(provider, providers.Factory)
def test_deepcopy_from_memo():
provider = providers.Factory(Example)
provider_copy_memo = providers.Factory(Example)
provider_copy = providers.deepcopy(provider, memo={id(provider): provider_copy_memo})
assert provider_copy is provider_copy_memo
def test_deepcopy_args():
provider = providers.Factory(Example)
dependent_provider1 = providers.Factory(list)
dependent_provider2 = providers.Factory(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
assert provider.args != provider_copy.args
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_kwargs():
provider = providers.Factory(Example)
dependent_provider1 = providers.Factory(list)
dependent_provider2 = providers.Factory(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
assert provider.kwargs != provider_copy.kwargs
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_attributes():
provider = providers.Factory(Example)
dependent_provider1 = providers.Factory(list)
dependent_provider2 = providers.Factory(dict)
provider.add_attributes(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.attributes["a1"]
dependent_provider_copy2 = provider_copy.attributes["a2"]
assert provider.attributes != provider_copy.attributes
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_overridden():
provider = providers.Factory(Example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert provider.cls is provider_copy.cls
assert isinstance(provider, providers.Factory)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams():
provider = providers.Factory(Example)
provider.add_args(sys.stdin)
provider.add_kwargs(a2=sys.stdout)
provider.add_attributes(a3=sys.stderr)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert isinstance(provider_copy, providers.Factory)
assert provider.args[0] is sys.stdin
assert provider.kwargs["a2"] is sys.stdout
assert provider.attributes["a3"] is sys.stderr
def test_repr():
provider = providers.Factory(Example)
assert repr(provider) == (
"<dependency_injector.providers."
"Factory({0}) at {1}>".format(repr(Example), hex(id(provider)))
)

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"""Tests for injection objects."""

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"""Named injection tests."""
from dependency_injector import providers
def test_isinstance():
injection = providers.NamedInjection("name", 1)
assert isinstance(injection, providers.Injection)
def test_get_name():
injection = providers.NamedInjection("name", 123)
assert injection.get_name() == "name"
def test_get_value_with_not_provider():
injection = providers.NamedInjection("name", 123)
assert injection.get_value() == 123
def test_get_value_with_factory():
injection = providers.NamedInjection("name", providers.Factory(object))
obj1 = injection.get_value()
obj2 = injection.get_value()
assert type(obj1) is object
assert type(obj2) is object
assert obj1 is not obj2
def test_get_original_value():
provider = providers.Factory(object)
injection = providers.NamedInjection("name", provider)
assert injection.get_original_value() is provider
def test_deepcopy():
provider = providers.Factory(object)
injection = providers.NamedInjection("name", provider)
injection_copy = providers.deepcopy(injection)
assert injection_copy is not injection
assert injection_copy.get_original_value() is not injection.get_original_value()
def test_deepcopy_memo():
provider = providers.Factory(object)
injection = providers.NamedInjection("name", provider)
injection_copy_orig = providers.NamedInjection("name", provider)
injection_copy = providers.deepcopy(injection, {id(injection): injection_copy_orig})
assert injection_copy is injection_copy_orig
assert injection_copy.get_original_value() is injection.get_original_value()

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"""Positional injection tests."""
from dependency_injector import providers
def test_isinstance():
injection = providers.PositionalInjection(1)
assert isinstance(injection, providers.Injection)
def test_get_value_with_not_provider():
injection = providers.PositionalInjection(123)
assert injection.get_value() == 123
def test_get_value_with_factory():
injection = providers.PositionalInjection(providers.Factory(object))
obj1 = injection.get_value()
obj2 = injection.get_value()
assert type(obj1) is object
assert type(obj2) is object
assert obj1 is not obj2
def test_get_original_value():
provider = providers.Factory(object)
injection = providers.PositionalInjection(provider)
assert injection.get_original_value() is provider
def test_deepcopy():
provider = providers.Factory(object)
injection = providers.PositionalInjection(provider)
injection_copy = providers.deepcopy(injection)
assert injection_copy is not injection
assert injection_copy.get_original_value() is not injection.get_original_value()
def test_deepcopy_memo():
provider = providers.Factory(object)
injection = providers.PositionalInjection(provider)
injection_copy_orig = providers.PositionalInjection(provider)
injection_copy = providers.deepcopy(injection, {id(injection): injection_copy_orig})
assert injection_copy is injection_copy_orig
assert injection_copy.get_original_value() is injection.get_original_value()

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"""Resource provider tests."""

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"""Resource provider async tests."""
import asyncio
import inspect
import sys
from typing import Any
from dependency_injector import containers, providers, resources
from pytest import mark, raises
@mark.asyncio
async def test_init_async_function():
resource = object()
async def _init():
await asyncio.sleep(0.001)
_init.counter += 1
return resource
_init.counter = 0
provider = providers.Resource(_init)
result1 = await provider()
assert result1 is resource
assert _init.counter == 1
result2 = await provider()
assert result2 is resource
assert _init.counter == 1
await provider.shutdown()
@mark.asyncio
@mark.skipif(sys.version_info < (3, 6), reason="requires Python 3.6+")
async def test_init_async_generator():
resource = object()
async def _init():
await asyncio.sleep(0.001)
_init.init_counter += 1
yield resource
await asyncio.sleep(0.001)
_init.shutdown_counter += 1
_init.init_counter = 0
_init.shutdown_counter = 0
provider = providers.Resource(_init)
result1 = await provider()
assert result1 is resource
assert _init.init_counter == 1
assert _init.shutdown_counter == 0
await provider.shutdown()
assert _init.init_counter == 1
assert _init.shutdown_counter == 1
result2 = await provider()
assert result2 is resource
assert _init.init_counter == 2
assert _init.shutdown_counter == 1
await provider.shutdown()
assert _init.init_counter == 2
assert _init.shutdown_counter == 2
@mark.asyncio
async def test_init_async_class():
resource = object()
class TestResource(resources.AsyncResource):
init_counter = 0
shutdown_counter = 0
async def init(self):
await asyncio.sleep(0.001)
self.__class__.init_counter += 1
return resource
async def shutdown(self, resource_):
await asyncio.sleep(0.001)
self.__class__.shutdown_counter += 1
assert resource_ is resource
provider = providers.Resource(TestResource)
result1 = await provider()
assert result1 is resource
assert TestResource.init_counter == 1
assert TestResource.shutdown_counter == 0
await provider.shutdown()
assert TestResource.init_counter == 1
assert TestResource.shutdown_counter == 1
result2 = await provider()
assert result2 is resource
assert TestResource.init_counter == 2
assert TestResource.shutdown_counter == 1
await provider.shutdown()
assert TestResource.init_counter == 2
assert TestResource.shutdown_counter == 2
def test_init_async_class_generic_typing():
# See issue: https://github.com/ets-labs/python-dependency-injector/issues/488
class TestDependency:
...
class TestAsyncResource(resources.AsyncResource[TestDependency]):
async def init(self, *args: Any, **kwargs: Any) -> TestDependency:
return TestDependency()
async def shutdown(self, resource: TestDependency) -> None: ...
assert issubclass(TestAsyncResource, resources.AsyncResource) is True
def test_init_async_class_abc_init_definition_is_required():
class TestAsyncResource(resources.AsyncResource):
...
with raises(TypeError) as context:
TestAsyncResource()
assert "Can't instantiate abstract class TestAsyncResource" in str(context.value)
assert "init" in str(context.value)
def test_init_async_class_abc_shutdown_definition_is_not_required():
class TestAsyncResource(resources.AsyncResource):
async def init(self):
...
assert hasattr(TestAsyncResource(), "shutdown") is True
assert inspect.iscoroutinefunction(TestAsyncResource.shutdown) is True
@mark.asyncio
async def test_init_with_error():
async def _init():
raise RuntimeError()
provider = providers.Resource(_init)
future = provider()
assert provider.initialized is True
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await future
assert provider.initialized is False
assert provider.is_async_mode_enabled() is True
@mark.asyncio
async def test_init_async_gen_with_error():
async def _init():
raise RuntimeError()
yield
provider = providers.Resource(_init)
future = provider()
assert provider.initialized is True
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await future
assert provider.initialized is False
assert provider.is_async_mode_enabled() is True
@mark.asyncio
async def test_init_async_subclass_with_error():
class _Resource(resources.AsyncResource):
async def init(self):
raise RuntimeError()
async def shutdown(self, resource):
pass
provider = providers.Resource(_Resource)
future = provider()
assert provider.initialized is True
assert provider.is_async_mode_enabled() is True
with raises(RuntimeError):
await future
assert provider.initialized is False
assert provider.is_async_mode_enabled() is True
@mark.asyncio
async def test_init_with_dependency_to_other_resource():
# See: https://github.com/ets-labs/python-dependency-injector/issues/361
async def init_db_connection(db_url: str):
await asyncio.sleep(0.001)
yield {"connection": "OK", "url": db_url}
async def init_user_session(db):
await asyncio.sleep(0.001)
yield {"session": "OK", "db": db}
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
db_connection = providers.Resource(
init_db_connection,
db_url=config.db_url,
)
user_session = providers.Resource(
init_user_session,
db=db_connection
)
async def main():
container = Container(config={"db_url": "postgres://..."})
try:
return await container.user_session()
finally:
await container.shutdown_resources()
result = await main()
assert result == {"session": "OK", "db": {"connection": "OK", "url": "postgres://..."}}
@mark.asyncio
async def test_init_and_shutdown_methods():
async def _init():
await asyncio.sleep(0.001)
_init.init_counter += 1
yield
await asyncio.sleep(0.001)
_init.shutdown_counter += 1
_init.init_counter = 0
_init.shutdown_counter = 0
provider = providers.Resource(_init)
await provider.init()
assert _init.init_counter == 1
assert _init.shutdown_counter == 0
await provider.shutdown()
assert _init.init_counter == 1
assert _init.shutdown_counter == 1
await provider.init()
assert _init.init_counter == 2
assert _init.shutdown_counter == 1
await provider.shutdown()
assert _init.init_counter == 2
assert _init.shutdown_counter == 2
@mark.asyncio
async def test_shutdown_of_not_initialized():
async def _init():
yield
provider = providers.Resource(_init)
provider.enable_async_mode()
result = await provider.shutdown()
assert result is None
@mark.asyncio
async def test_concurrent_init():
resource = object()
async def _init():
await asyncio.sleep(0.001)
_init.counter += 1
return resource
_init.counter = 0
provider = providers.Resource(_init)
result1, result2 = await asyncio.gather(
provider(),
provider()
)
assert result1 is resource
assert _init.counter == 1
assert result2 is resource
assert _init.counter == 1

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"""Resource provider tests."""
import sys
from typing import Any
from dependency_injector import containers, providers, resources, errors
from pytest import raises
def init_fn(*args, **kwargs):
return args, kwargs
def test_is_provider():
assert providers.is_provider(providers.Resource(init_fn)) is True
def test_init_optional_provides():
provider = providers.Resource()
provider.set_provides(init_fn)
assert provider.provides is init_fn
assert provider() == (tuple(), dict())
def test_set_provides_returns_():
provider = providers.Resource()
assert provider.set_provides(init_fn) is provider
def test_provided_instance_provider():
provider = providers.Resource(init_fn)
assert isinstance(provider.provided, providers.ProvidedInstance)
def test_injection():
resource = object()
def _init():
_init.counter += 1
return resource
_init.counter = 0
class Container(containers.DeclarativeContainer):
resource = providers.Resource(_init)
dependency1 = providers.List(resource)
dependency2 = providers.List(resource)
container = Container()
list1 = container.dependency1()
list2 = container.dependency2()
assert list1 == [resource]
assert list1[0] is resource
assert list2 == [resource]
assert list2[0] is resource
assert _init.counter == 1
def test_init_function():
def _init():
_init.counter += 1
_init.counter = 0
provider = providers.Resource(_init)
result1 = provider()
assert result1 is None
assert _init.counter == 1
result2 = provider()
assert result2 is None
assert _init.counter == 1
provider.shutdown()
def test_init_generator():
def _init():
_init.init_counter += 1
yield
_init.shutdown_counter += 1
_init.init_counter = 0
_init.shutdown_counter = 0
provider = providers.Resource(_init)
result1 = provider()
assert result1 is None
assert _init.init_counter == 1
assert _init.shutdown_counter == 0
provider.shutdown()
assert _init.init_counter == 1
assert _init.shutdown_counter == 1
result2 = provider()
assert result2 is None
assert _init.init_counter == 2
assert _init.shutdown_counter == 1
provider.shutdown()
assert _init.init_counter == 2
assert _init.shutdown_counter == 2
def test_init_class():
class TestResource(resources.Resource):
init_counter = 0
shutdown_counter = 0
def init(self):
self.__class__.init_counter += 1
def shutdown(self, _):
self.__class__.shutdown_counter += 1
provider = providers.Resource(TestResource)
result1 = provider()
assert result1 is None
assert TestResource.init_counter == 1
assert TestResource.shutdown_counter == 0
provider.shutdown()
assert TestResource.init_counter == 1
assert TestResource.shutdown_counter == 1
result2 = provider()
assert result2 is None
assert TestResource.init_counter == 2
assert TestResource.shutdown_counter == 1
provider.shutdown()
assert TestResource.init_counter == 2
assert TestResource.shutdown_counter == 2
def test_init_class_generic_typing():
# See issue: https://github.com/ets-labs/python-dependency-injector/issues/488
class TestDependency:
...
class TestResource(resources.Resource[TestDependency]):
def init(self, *args: Any, **kwargs: Any) -> TestDependency:
return TestDependency()
def shutdown(self, resource: TestDependency) -> None: ...
assert issubclass(TestResource, resources.Resource) is True
def test_init_class_abc_init_definition_is_required():
class TestResource(resources.Resource):
...
with raises(TypeError) as context:
TestResource()
assert "Can't instantiate abstract class TestResource" in str(context.value)
assert "init" in str(context.value)
def test_init_class_abc_shutdown_definition_is_not_required():
class TestResource(resources.Resource):
def init(self):
...
assert hasattr(TestResource(), "shutdown") is True
def test_init_not_callable():
provider = providers.Resource(1)
with raises(errors.Error):
provider.init()
def test_init_and_shutdown():
def _init():
_init.init_counter += 1
yield
_init.shutdown_counter += 1
_init.init_counter = 0
_init.shutdown_counter = 0
provider = providers.Resource(_init)
result1 = provider.init()
assert result1 is None
assert _init.init_counter == 1
assert _init.shutdown_counter == 0
provider.shutdown()
assert _init.init_counter == 1
assert _init.shutdown_counter == 1
result2 = provider.init()
assert result2 is None
assert _init.init_counter == 2
assert _init.shutdown_counter == 1
provider.shutdown()
assert _init.init_counter == 2
assert _init.shutdown_counter == 2
def test_shutdown_of_not_initialized():
def _init():
yield
provider = providers.Resource(_init)
result = provider.shutdown()
assert result is None
def test_initialized():
provider = providers.Resource(init_fn)
assert provider.initialized is False
provider.init()
assert provider.initialized is True
provider.shutdown()
assert provider.initialized is False
def test_call_with_context_args():
provider = providers.Resource(init_fn, "i1", "i2")
assert provider("i3", i4=4) == (("i1", "i2", "i3"), {"i4": 4})
def test_fluent_interface():
provider = providers.Resource(init_fn) \
.add_args(1, 2) \
.add_kwargs(a3=3, a4=4)
assert provider() == ((1, 2), {"a3": 3, "a4": 4})
def test_set_args():
provider = providers.Resource(init_fn) \
.add_args(1, 2) \
.set_args(3, 4)
assert provider.args == (3, 4)
def test_clear_args():
provider = providers.Resource(init_fn) \
.add_args(1, 2) \
.clear_args()
assert provider.args == tuple()
def test_set_kwargs():
provider = providers.Resource(init_fn) \
.add_kwargs(a1="i1", a2="i2") \
.set_kwargs(a3="i3", a4="i4")
assert provider.kwargs == {"a3": "i3", "a4": "i4"}
def test_clear_kwargs():
provider = providers.Resource(init_fn) \
.add_kwargs(a1="i1", a2="i2") \
.clear_kwargs()
assert provider.kwargs == {}
def test_call_overridden():
provider = providers.Resource(init_fn, 1)
overriding_provider1 = providers.Resource(init_fn, 2)
overriding_provider2 = providers.Resource(init_fn, 3)
provider.override(overriding_provider1)
provider.override(overriding_provider2)
instance1 = provider()
instance2 = provider()
assert instance1 is instance2
assert instance1 == ((3,), {})
assert instance2 == ((3,), {})
def test_deepcopy():
provider = providers.Resource(init_fn, 1, 2, a3=3, a4=4)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert provider.args == provider_copy.args
assert provider.kwargs == provider_copy.kwargs
assert isinstance(provider, providers.Resource)
def test_deepcopy_initialized():
provider = providers.Resource(init_fn)
provider.init()
with raises(errors.Error):
providers.deepcopy(provider)
def test_deepcopy_from_memo():
provider = providers.Resource(init_fn)
provider_copy_memo = providers.Resource(init_fn)
provider_copy = providers.deepcopy(
provider,
memo={id(provider): provider_copy_memo},
)
assert provider_copy is provider_copy_memo
def test_deepcopy_args():
provider = providers.Resource(init_fn)
dependent_provider1 = providers.Factory(list)
dependent_provider2 = providers.Factory(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
assert provider.args != provider_copy.args
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_kwargs():
provider = providers.Resource(init_fn)
dependent_provider1 = providers.Factory(list)
dependent_provider2 = providers.Factory(dict)
provider.add_kwargs(d1=dependent_provider1, d2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["d1"]
dependent_provider_copy2 = provider_copy.kwargs["d2"]
assert provider.kwargs != provider_copy.kwargs
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_overridden():
provider = providers.Resource(init_fn)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert provider.args == provider_copy.args
assert isinstance(provider, providers.Resource)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams():
provider = providers.Resource(init_fn)
provider.add_args(sys.stdin, sys.stdout, sys.stderr)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert isinstance(provider_copy, providers.Resource)
assert provider.args[0] is sys.stdin
assert provider.args[1] is sys.stdout
assert provider.args[2] is sys.stderr
def test_repr():
provider = providers.Resource(init_fn)
assert repr(provider) == (
"<dependency_injector.providers.Resource({0}) at {1}>".format(
repr(init_fn),
hex(id(provider)),
)
)

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tests/unit/providers/singleton/__init__.py Normal file
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"""Singleton provider tests."""

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tests/unit/providers/singleton/common.py Normal file
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"""Common test artifacts."""
class Example:
def __init__(self, init_arg1=None, init_arg2=None, init_arg3=None, init_arg4=None):
self.init_arg1 = init_arg1
self.init_arg2 = init_arg2
self.init_arg3 = init_arg3
self.init_arg4 = init_arg4
self.attribute1 = None
self.attribute2 = None

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tests/unit/providers/singleton/test_abstract_singleton_py2_py3.py Normal file
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"""AbstractSingleton provider tests."""
from dependency_injector import providers, errors
from pytest import raises
from .common import Example
def test_inheritance():
assert isinstance(providers.AbstractSingleton(Example), providers.BaseSingleton)
def test_call_overridden_by_singleton():
provider = providers.AbstractSingleton(object)
provider.override(providers.Singleton(Example))
assert isinstance(provider(), Example)
def test_call_overridden_by_delegated_singleton():
provider = providers.AbstractSingleton(object)
provider.override(providers.DelegatedSingleton(Example))
assert isinstance(provider(), Example)
def test_call_not_overridden():
provider = providers.AbstractSingleton(object)
with raises(errors.Error):
provider()
def test_reset_overridden():
provider = providers.AbstractSingleton(object)
provider.override(providers.Singleton(Example))
instance1 = provider()
provider.reset()
instance2 = provider()
assert instance1 is not instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_reset_not_overridden():
provider = providers.AbstractSingleton(object)
with raises(errors.Error):
provider.reset()
def test_override_by_not_singleton():
provider = providers.AbstractSingleton(object)
with raises(errors.Error):
provider.override(providers.Factory(object))
def test_repr():
provider = providers.AbstractSingleton(Example)
assert repr(provider) == (
"<dependency_injector.providers."
"AbstractSingleton({0}) at {1}>".format(repr(Example), hex(id(provider)))
)

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tests/unit/providers/singleton/test_delegated_singleton_py2_py3.py Normal file
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"""Delegated singleton provider tests."""
from dependency_injector import providers
from pytest import fixture
from .common import Example
PROVIDER_CLASSES = [
providers.DelegatedSingleton,
providers.DelegatedThreadLocalSingleton,
providers.DelegatedThreadSafeSingleton,
]
@fixture(params=PROVIDER_CLASSES)
def singleton_cls(request):
return request.param
@fixture
def provider(singleton_cls):
return singleton_cls(Example)
def test_is_delegated_provider(provider):
assert providers.is_delegated(provider) is True

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tests/unit/providers/singleton/test_singleton_delegate_py2_py3.py Normal file
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"""SingletonDelegate provider tests."""
from dependency_injector import providers, errors
from pytest import fixture, raises
@fixture
def provider():
return providers.Singleton(object)
@fixture
def delegate(provider):
return providers.SingletonDelegate(provider)
def test_is_delegate(delegate):
assert isinstance(delegate, providers.Delegate)
def test_init_with_not_factory():
with raises(errors.Error):
providers.SingletonDelegate(providers.Object(object()))

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tests/unit/providers/singleton/test_singleton_py2_py3.py Normal file
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"""Singleton provider tests."""
import sys
from dependency_injector import providers, errors
from pytest import fixture, raises
from .common import Example
PROVIDER_CLASSES = [
providers.Singleton,
providers.DelegatedSingleton,
providers.ThreadLocalSingleton,
providers.DelegatedThreadLocalSingleton,
providers.ThreadSafeSingleton,
providers.DelegatedThreadSafeSingleton,
]
if sys.version_info >= (3, 5):
PROVIDER_CLASSES.append(providers.ContextLocalSingleton)
@fixture(params=PROVIDER_CLASSES)
def singleton_cls(request):
return request.param
@fixture
def provider(singleton_cls):
return singleton_cls(Example)
def test_is_provider(provider):
assert providers.is_provider(provider) is True
def test_init_with_not_callable(singleton_cls):
with raises(errors.Error):
singleton_cls(123)
def test_init_optional_provides(provider):
provider.set_provides(object)
assert provider.provides is object
assert isinstance(provider(), object)
def test_set_provides_returns_self(provider):
assert provider.set_provides(object) is provider
def test_init_with_valid_provided_type(singleton_cls):
class ExampleProvider(singleton_cls):
provided_type = Example
example_provider = ExampleProvider(Example, 1, 2)
assert isinstance(example_provider(), Example)
def test_init_with_valid_provided_subtype(singleton_cls):
class ExampleProvider(singleton_cls):
provided_type = Example
class NewExample(Example):
pass
example_provider = ExampleProvider(NewExample, 1, 2)
assert isinstance(example_provider(), NewExample)
def test_init_with_invalid_provided_type(singleton_cls):
class ExampleProvider(singleton_cls):
provided_type = Example
with raises(errors.Error):
ExampleProvider(list)
def test_provided_instance_provider(provider):
assert isinstance(provider.provided, providers.ProvidedInstance)
def test_call(provider):
instance1 = provider()
instance2 = provider()
assert instance1 is instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_positional_args(singleton_cls):
provider = singleton_cls(Example, "i1", "i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_keyword_args(singleton_cls):
provider = singleton_cls(Example, init_arg1="i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_init_positional_and_keyword_args(singleton_cls):
provider = singleton_cls(Example, "i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
assert instance1.init_arg1 == "i1"
assert instance1.init_arg2 == "i2"
assert instance2.init_arg1 == "i1"
assert instance2.init_arg2 == "i2"
assert instance1 is instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_attributes(provider):
provider.add_attributes(attribute1="a1", attribute2="a2")
instance1 = provider()
instance2 = provider()
assert instance1.attribute1 == "a1"
assert instance1.attribute2 == "a2"
assert instance2.attribute1 == "a1"
assert instance2.attribute2 == "a2"
assert instance1 is instance2
assert isinstance(instance1, Example)
assert isinstance(instance2, Example)
def test_call_with_context_args(provider):
instance = provider(11, 22)
assert instance.init_arg1 == 11
assert instance.init_arg2 == 22
def test_call_with_context_kwargs(singleton_cls):
provider = singleton_cls(Example, init_arg1=1)
instance1 = provider(init_arg2=22)
assert instance1.init_arg1 == 1
assert instance1.init_arg2 == 22
# Instance is created earlier
instance1 = provider(init_arg1=11, init_arg2=22)
assert instance1.init_arg1 == 1
assert instance1.init_arg2 == 22
def test_call_with_context_args_and_kwargs(singleton_cls):
provider = singleton_cls(Example, 11)
instance = provider(22, init_arg3=33, init_arg4=44)
assert instance.init_arg1 == 11
assert instance.init_arg2 == 22
assert instance.init_arg3 == 33
assert instance.init_arg4 == 44
def test_fluent_interface(singleton_cls):
provider = singleton_cls(Example) \
.add_args(1, 2) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.add_attributes(attribute1=5, attribute2=6)
instance = provider()
assert instance.init_arg1 == 1
assert instance.init_arg2 == 2
assert instance.init_arg3 == 3
assert instance.init_arg4 == 4
assert instance.attribute1 == 5
assert instance.attribute2 == 6
def test_set_args(singleton_cls):
provider = singleton_cls(Example) \
.add_args(1, 2) \
.set_args(3, 4)
assert provider.args == (3, 4)
def test_set_kwargs(singleton_cls):
provider = singleton_cls(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
assert provider.kwargs == dict(init_arg3=4, init_arg4=5)
def test_set_attributes(singleton_cls):
provider = singleton_cls(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.set_attributes(attribute1=6, attribute2=7)
assert provider.attributes == dict(attribute1=6, attribute2=7)
def test_clear_args(singleton_cls):
provider = singleton_cls(Example) \
.add_args(1, 2) \
.clear_args()
assert provider.args == tuple()
def test_clear_kwargs(singleton_cls):
provider = singleton_cls(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
assert provider.kwargs == dict()
def test_clear_attributes(singleton_cls):
provider = singleton_cls(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.clear_attributes()
assert provider.attributes == dict()
def test_call_overridden(singleton_cls):
provider = singleton_cls(Example)
overriding_provider1 = singleton_cls(dict)
overriding_provider2 = singleton_cls(list)
provider.override(overriding_provider1)
provider.override(overriding_provider2)
instance1 = provider()
instance2 = provider()
assert instance1 is instance2
assert isinstance(instance1, list)
assert isinstance(instance2, list)
def test_deepcopy(singleton_cls):
provider = singleton_cls(Example)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert provider.cls is provider_copy.cls
assert isinstance(provider, singleton_cls)
def test_deepcopy_from_memo(singleton_cls):
provider = singleton_cls(Example)
provider_copy_memo = singleton_cls(Example)
provider_copy = providers.deepcopy(provider, memo={id(provider): provider_copy_memo})
assert provider_copy is provider_copy_memo
def test_deepcopy_args(singleton_cls):
provider = singleton_cls(Example)
dependent_provider1 = singleton_cls(list)
dependent_provider2 = singleton_cls(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
assert provider.args != provider_copy.args
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_kwargs(singleton_cls):
provider = singleton_cls(Example)
dependent_provider1 = singleton_cls(list)
dependent_provider2 = singleton_cls(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
assert provider.kwargs != provider_copy.kwargs
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_attributes(singleton_cls):
provider = singleton_cls(Example)
dependent_provider1 = singleton_cls(list)
dependent_provider2 = singleton_cls(dict)
provider.add_attributes(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.attributes["a1"]
dependent_provider_copy2 = provider_copy.attributes["a2"]
assert provider.attributes != provider_copy.attributes
assert dependent_provider1.cls is dependent_provider_copy1.cls
assert dependent_provider1 is not dependent_provider_copy1
assert dependent_provider2.cls is dependent_provider_copy2.cls
assert dependent_provider2 is not dependent_provider_copy2
def test_deepcopy_overridden(singleton_cls):
provider = singleton_cls(Example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert provider.cls is provider_copy.cls
assert isinstance(provider, singleton_cls)
assert object_provider is not object_provider_copy
assert isinstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams(singleton_cls):
provider = singleton_cls(Example)
provider.add_args(sys.stdin)
provider.add_kwargs(a2=sys.stdout)
provider.add_attributes(a3=sys.stderr)
provider_copy = providers.deepcopy(provider)
assert provider is not provider_copy
assert isinstance(provider_copy, singleton_cls)
assert provider.args[0] is sys.stdin
assert provider.kwargs["a2"] is sys.stdout
assert provider.attributes["a3"] is sys.stderr
def test_reset(singleton_cls):
provider = singleton_cls(object)
instance1 = provider()
assert isinstance(instance1, object)
provider.reset()
instance2 = provider()
assert isinstance(instance2, object)
assert instance1 is not instance2
def test_reset_clean(provider):
instance1 = provider()
provider.reset()
provider.reset()
instance2 = provider()
assert instance1 is not instance2
def test_reset_with_singleton(singleton_cls):
dependent_singleton = providers.Singleton(object)
provider = singleton_cls(dict, dependency=dependent_singleton)
dependent_instance = dependent_singleton()
instance1 = provider()
assert instance1["dependency"] is dependent_instance
provider.reset()
instance2 = provider()
assert instance2["dependency"] is dependent_instance
assert instance1 is not instance2
def test_reset_context_manager(provider):
instance1 = provider()
with provider.reset():
instance2 = provider()
instance3 = provider()
assert len({instance1, instance2, instance3}) == 3
def test_reset_context_manager_as_attribute(provider):
with provider.reset() as alias:
pass
assert provider is alias
def test_full_reset(singleton_cls):
dependent_singleton = providers.Singleton(object)
provider = singleton_cls(dict, dependency=dependent_singleton)
dependent_instance1 = dependent_singleton()
instance1 = provider()
assert instance1["dependency"] is dependent_instance1
provider.full_reset()
dependent_instance2 = dependent_singleton()
instance2 = provider()
assert instance2["dependency"] is not dependent_instance1
assert dependent_instance1 is not dependent_instance2
assert instance1 is not instance2
def test_full_reset_context_manager(singleton_cls):
class Item:
def __init__(self, dependency):
self.dependency = dependency
dependent_singleton = providers.Singleton(object)
singleton = singleton_cls(Item, dependency=dependent_singleton)
instance1 = singleton()
with singleton.full_reset():
instance2 = singleton()
instance3 = singleton()
assert len({instance1, instance2, instance3}) == 3
assert len({instance1.dependency, instance2.dependency, instance3.dependency}) == 3
def test_full_reset_context_manager_as_attribute(provider):
with provider.full_reset() as alias:
pass
assert provider is alias
def test_repr(provider):
assert repr(provider) == (
"<dependency_injector.providers."
"{0}({1}) at {2}>".format(provider.__class__.__name__, repr(Example), hex(id(provider)))
)

434
tests/unit/providers/singleton_common.py
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@ -1,434 +0,0 @@
import sys
from dependency_injector import providers, errors
class Example(object):
def __init__(self, init_arg1=None, init_arg2=None, init_arg3=None,
init_arg4=None):
self.init_arg1 = init_arg1
self.init_arg2 = init_arg2
self.init_arg3 = init_arg3
self.init_arg4 = init_arg4
self.attribute1 = None
self.attribute2 = None
class _BaseSingletonTestCase(object):
singleton_cls = None
def test_is_provider(self):
self.assertTrue(providers.is_provider(self.singleton_cls(Example)))
def test_init_with_callable(self):
self.assertTrue(self.singleton_cls(credits))
def test_init_with_not_callable(self):
self.assertRaises(errors.Error, self.singleton_cls, 123)
def test_init_optional_provides(self):
provider = self.singleton_cls()
provider.set_provides(object)
self.assertIs(provider.provides, object)
self.assertIsInstance(provider(), object)
def test_set_provides_returns_self(self):
provider = self.singleton_cls()
self.assertIs(provider.set_provides(object), provider)
def test_init_with_valid_provided_type(self):
class ExampleProvider(self.singleton_cls):
provided_type = Example
example_provider = ExampleProvider(Example, 1, 2)
self.assertIsInstance(example_provider(), Example)
def test_init_with_valid_provided_subtype(self):
class ExampleProvider(self.singleton_cls):
provided_type = Example
class NewExampe(Example):
pass
example_provider = ExampleProvider(NewExampe, 1, 2)
self.assertIsInstance(example_provider(), NewExampe)
def test_init_with_invalid_provided_type(self):
class ExampleProvider(self.singleton_cls):
provided_type = Example
with self.assertRaises(errors.Error):
ExampleProvider(list)
def test_provided_instance_provider(self):
provider = providers.Singleton(Example)
self.assertIsInstance(provider.provided, providers.ProvidedInstance)
def test_call(self):
provider = self.singleton_cls(Example)
instance1 = provider()
instance2 = provider()
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, Example)
self.assertIsInstance(instance2, Example)
def test_call_with_init_positional_args(self):
provider = self.singleton_cls(Example, "i1", "i2")
instance1 = provider()
instance2 = provider()
self.assertEqual(instance1.init_arg1, "i1")
self.assertEqual(instance1.init_arg2, "i2")
self.assertEqual(instance2.init_arg1, "i1")
self.assertEqual(instance2.init_arg2, "i2")
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, Example)
self.assertIsInstance(instance2, Example)
def test_call_with_init_keyword_args(self):
provider = self.singleton_cls(Example, init_arg1="i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
self.assertEqual(instance1.init_arg1, "i1")
self.assertEqual(instance1.init_arg2, "i2")
self.assertEqual(instance2.init_arg1, "i1")
self.assertEqual(instance2.init_arg2, "i2")
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, Example)
self.assertIsInstance(instance2, Example)
def test_call_with_init_positional_and_keyword_args(self):
provider = self.singleton_cls(Example, "i1", init_arg2="i2")
instance1 = provider()
instance2 = provider()
self.assertEqual(instance1.init_arg1, "i1")
self.assertEqual(instance1.init_arg2, "i2")
self.assertEqual(instance2.init_arg1, "i1")
self.assertEqual(instance2.init_arg2, "i2")
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, Example)
self.assertIsInstance(instance2, Example)
def test_call_with_attributes(self):
provider = self.singleton_cls(Example)
provider.add_attributes(attribute1="a1", attribute2="a2")
instance1 = provider()
instance2 = provider()
self.assertEqual(instance1.attribute1, "a1")
self.assertEqual(instance1.attribute2, "a2")
self.assertEqual(instance2.attribute1, "a1")
self.assertEqual(instance2.attribute2, "a2")
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, Example)
self.assertIsInstance(instance2, Example)
def test_call_with_context_args(self):
provider = self.singleton_cls(Example)
instance = provider(11, 22)
self.assertEqual(instance.init_arg1, 11)
self.assertEqual(instance.init_arg2, 22)
def test_call_with_context_kwargs(self):
provider = self.singleton_cls(Example, init_arg1=1)
instance1 = provider(init_arg2=22)
self.assertEqual(instance1.init_arg1, 1)
self.assertEqual(instance1.init_arg2, 22)
# Instance is created earlier
instance1 = provider(init_arg1=11, init_arg2=22)
self.assertEqual(instance1.init_arg1, 1)
self.assertEqual(instance1.init_arg2, 22)
def test_call_with_context_args_and_kwargs(self):
provider = self.singleton_cls(Example, 11)
instance = provider(22, init_arg3=33, init_arg4=44)
self.assertEqual(instance.init_arg1, 11)
self.assertEqual(instance.init_arg2, 22)
self.assertEqual(instance.init_arg3, 33)
self.assertEqual(instance.init_arg4, 44)
def test_fluent_interface(self):
provider = self.singleton_cls(Example) \
.add_args(1, 2) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.add_attributes(attribute1=5, attribute2=6)
instance = provider()
self.assertEqual(instance.init_arg1, 1)
self.assertEqual(instance.init_arg2, 2)
self.assertEqual(instance.init_arg3, 3)
self.assertEqual(instance.init_arg4, 4)
self.assertEqual(instance.attribute1, 5)
self.assertEqual(instance.attribute2, 6)
def test_set_args(self):
provider = self.singleton_cls(Example) \
.add_args(1, 2) \
.set_args(3, 4)
self.assertEqual(provider.args, (3, 4))
def test_set_kwargs(self):
provider = self.singleton_cls(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
self.assertEqual(provider.kwargs, dict(init_arg3=4, init_arg4=5))
def test_set_attributes(self):
provider = self.singleton_cls(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.set_attributes(attribute1=6, attribute2=7)
self.assertEqual(provider.attributes, dict(attribute1=6, attribute2=7))
def test_clear_args(self):
provider = self.singleton_cls(Example) \
.add_args(1, 2) \
.clear_args()
self.assertEqual(provider.args, tuple())
def test_clear_kwargs(self):
provider = self.singleton_cls(Example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
self.assertEqual(provider.kwargs, dict())
def test_clear_attributes(self):
provider = self.singleton_cls(Example) \
.add_attributes(attribute1=5, attribute2=6) \
.clear_attributes()
self.assertEqual(provider.attributes, dict())
def test_call_overridden(self):
provider = self.singleton_cls(Example)
overriding_provider1 = self.singleton_cls(dict)
overriding_provider2 = self.singleton_cls(list)
provider.override(overriding_provider1)
provider.override(overriding_provider2)
instance1 = provider()
instance2 = provider()
self.assertIs(instance1, instance2)
self.assertIsInstance(instance1, list)
self.assertIsInstance(instance2, list)
def test_deepcopy(self):
provider = self.singleton_cls(Example)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.cls, provider_copy.cls)
self.assertIsInstance(provider, self.singleton_cls)
def test_deepcopy_from_memo(self):
provider = self.singleton_cls(Example)
provider_copy_memo = self.singleton_cls(Example)
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_args(self):
provider = self.singleton_cls(Example)
dependent_provider1 = self.singleton_cls(list)
dependent_provider2 = self.singleton_cls(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
self.assertNotEqual(provider.args, provider_copy.args)
self.assertIs(dependent_provider1.cls, dependent_provider_copy1.cls)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.cls, dependent_provider_copy2.cls)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_kwargs(self):
provider = self.singleton_cls(Example)
dependent_provider1 = self.singleton_cls(list)
dependent_provider2 = self.singleton_cls(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
self.assertNotEqual(provider.kwargs, provider_copy.kwargs)
self.assertIs(dependent_provider1.cls, dependent_provider_copy1.cls)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.cls, dependent_provider_copy2.cls)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_attributes(self):
provider = self.singleton_cls(Example)
dependent_provider1 = self.singleton_cls(list)
dependent_provider2 = self.singleton_cls(dict)
provider.add_attributes(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.attributes["a1"]
dependent_provider_copy2 = provider_copy.attributes["a2"]
self.assertNotEqual(provider.attributes, provider_copy.attributes)
self.assertIs(dependent_provider1.cls, dependent_provider_copy1.cls)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.cls, dependent_provider_copy2.cls)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_overridden(self):
provider = self.singleton_cls(Example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.cls, provider_copy.cls)
self.assertIsInstance(provider, self.singleton_cls)
self.assertIsNot(object_provider, object_provider_copy)
self.assertIsInstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams(self):
provider = providers.Singleton(Example)
provider.add_args(sys.stdin)
provider.add_kwargs(a2=sys.stdout)
provider.add_attributes(a3=sys.stderr)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider_copy, providers.Singleton)
self.assertIs(provider.args[0], sys.stdin)
self.assertIs(provider.kwargs["a2"], sys.stdout)
self.assertIs(provider.attributes["a3"], sys.stderr)
def test_reset(self):
provider = self.singleton_cls(object)
instance1 = provider()
self.assertIsInstance(instance1, object)
provider.reset()
instance2 = provider()
self.assertIsInstance(instance2, object)
self.assertIsNot(instance1, instance2)
def test_reset_with_singleton(self):
dependent_singleton = providers.Singleton(object)
provider = self.singleton_cls(dict, dependency=dependent_singleton)
dependent_instance = dependent_singleton()
instance1 = provider()
self.assertIs(instance1["dependency"], dependent_instance)
provider.reset()
instance2 = provider()
self.assertIs(instance1["dependency"], dependent_instance)
self.assertIsNot(instance1, instance2)
def test_reset_context_manager(self):
singleton = self.singleton_cls(object)
instance1 = singleton()
with singleton.reset():
instance2 = singleton()
instance3 = singleton()
self.assertEqual(len({instance1, instance2, instance3}), 3)
def test_reset_context_manager_as_attribute(self):
singleton = self.singleton_cls(object)
with singleton.reset() as alias:
pass
self.assertIs(singleton, alias)
def test_full_reset(self):
dependent_singleton = providers.Singleton(object)
provider = self.singleton_cls(dict, dependency=dependent_singleton)
dependent_instance1 = dependent_singleton()
instance1 = provider()
self.assertIs(instance1["dependency"], dependent_instance1)
provider.full_reset()
dependent_instance2 = dependent_singleton()
instance2 = provider()
self.assertIsNot(instance2["dependency"], dependent_instance1)
self.assertIsNot(dependent_instance1, dependent_instance2)
self.assertIsNot(instance1, instance2)
def test_full_reset_context_manager(self):
class Item:
def __init__(self, dependency):
self.dependency = dependency
dependent_singleton = providers.Singleton(object)
singleton = self.singleton_cls(Item, dependency=dependent_singleton)
instance1 = singleton()
with singleton.full_reset():
instance2 = singleton()
instance3 = singleton()
self.assertEqual(len({instance1, instance2, instance3}), 3)
self.assertEqual(
len({instance1.dependency, instance2.dependency, instance3.dependency}),
3,
)
def test_full_reset_context_manager_as_attribute(self):
singleton = self.singleton_cls(object)
with singleton.full_reset() as alias:
pass
self.assertIs(singleton, alias)

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"""Dependency injector base providers unit tests."""
import unittest
import warnings
from dependency_injector import (
containers,
providers,
errors,
)
class ProviderTests(unittest.TestCase):
def setUp(self):
self.provider = providers.Provider()
def test_is_provider(self):
self.assertTrue(providers.is_provider(self.provider))
def test_call(self):
self.assertRaises(NotImplementedError, self.provider.__call__)
def test_delegate(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
delegate1 = self.provider.delegate()
delegate2 = self.provider.delegate()
self.assertIsInstance(delegate1, providers.Delegate)
self.assertIs(delegate1(), self.provider)
self.assertIsInstance(delegate2, providers.Delegate)
self.assertIs(delegate2(), self.provider)
self.assertIsNot(delegate1, delegate2)
def test_provider(self):
delegate1 = self.provider.provider
self.assertIsInstance(delegate1, providers.Delegate)
self.assertIs(delegate1(), self.provider)
delegate2 = self.provider.provider
self.assertIsInstance(delegate2, providers.Delegate)
self.assertIs(delegate2(), self.provider)
self.assertIsNot(delegate1, delegate2)
def test_override(self):
overriding_provider = providers.Provider()
self.provider.override(overriding_provider)
self.assertTrue(self.provider.overridden)
self.assertIs(self.provider.last_overriding, overriding_provider)
def test_double_override(self):
overriding_provider1 = providers.Object(1)
overriding_provider2 = providers.Object(2)
self.provider.override(overriding_provider1)
overriding_provider1.override(overriding_provider2)
self.assertEqual(self.provider(), overriding_provider2())
def test_overriding_context(self):
overriding_provider = providers.Provider()
with self.provider.override(overriding_provider):
self.assertTrue(self.provider.overridden)
self.assertFalse(self.provider.overridden)
def test_override_with_itself(self):
self.assertRaises(errors.Error, self.provider.override, self.provider)
def test_override_with_not_provider(self):
obj = object()
self.provider.override(obj)
self.assertIs(self.provider(), obj)
def test_reset_last_overriding(self):
overriding_provider1 = providers.Provider()
overriding_provider2 = providers.Provider()
self.provider.override(overriding_provider1)
self.provider.override(overriding_provider2)
self.assertIs(self.provider.overridden[-1], overriding_provider2)
self.assertIs(self.provider.last_overriding, overriding_provider2)
self.provider.reset_last_overriding()
self.assertIs(self.provider.overridden[-1], overriding_provider1)
self.assertIs(self.provider.last_overriding, overriding_provider1)
self.provider.reset_last_overriding()
self.assertFalse(self.provider.overridden)
self.assertIsNone(self.provider.last_overriding)
def test_reset_last_overriding_of_not_overridden_provider(self):
self.assertRaises(errors.Error, self.provider.reset_last_overriding)
def test_reset_override(self):
overriding_provider = providers.Provider()
self.provider.override(overriding_provider)
self.assertTrue(self.provider.overridden)
self.assertEqual(self.provider.overridden, (overriding_provider,))
self.provider.reset_override()
self.assertEqual(self.provider.overridden, tuple())
def test_deepcopy(self):
provider = providers.Provider()
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Provider)
def test_deepcopy_from_memo(self):
provider = providers.Provider()
provider_copy_memo = providers.Provider()
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_overridden(self):
provider = providers.Provider()
overriding_provider = providers.Provider()
provider.override(overriding_provider)
provider_copy = providers.deepcopy(provider)
overriding_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Provider)
self.assertIsNot(overriding_provider, overriding_provider_copy)
self.assertIsInstance(overriding_provider_copy, providers.Provider)
def test_repr(self):
self.assertEqual(repr(self.provider),
"<dependency_injector.providers."
"Provider() at {0}>".format(hex(id(self.provider))))
class ObjectProviderTests(unittest.TestCase):
def test_is_provider(self):
self.assertTrue(providers.is_provider(providers.Object(object())))
def test_init_optional_provides(self):
instance = object()
provider = providers.Object()
provider.set_provides(instance)
self.assertIs(provider.provides, instance)
self.assertIs(provider(), instance)
def test_set_provides_returns_self(self):
provider = providers.Object()
self.assertIs(provider.set_provides(object()), provider)
def test_provided_instance_provider(self):
provider = providers.Object(object())
self.assertIsInstance(provider.provided, providers.ProvidedInstance)
def test_call_object_provider(self):
obj = object()
self.assertIs(providers.Object(obj)(), obj)
def test_call_overridden_object_provider(self):
obj1 = object()
obj2 = object()
provider = providers.Object(obj1)
provider.override(providers.Object(obj2))
self.assertIs(provider(), obj2)
def test_deepcopy(self):
provider = providers.Object(1)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Object)
def test_deepcopy_from_memo(self):
provider = providers.Object(1)
provider_copy_memo = providers.Provider()
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_overridden(self):
provider = providers.Object(1)
overriding_provider = providers.Provider()
provider.override(overriding_provider)
provider_copy = providers.deepcopy(provider)
overriding_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Object)
self.assertIsNot(overriding_provider, overriding_provider_copy)
self.assertIsInstance(overriding_provider_copy, providers.Provider)
def test_deepcopy_doesnt_copy_provided_object(self):
# Fixes bug #231
# Details: https://github.com/ets-labs/python-dependency-injector/issues/231
some_object = object()
provider = providers.Object(some_object)
provider_copy = providers.deepcopy(provider)
self.assertIs(provider(), some_object)
self.assertIs(provider_copy(), some_object)
def test_repr(self):
some_object = object()
provider = providers.Object(some_object)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"Object({0}) at {1}>".format(
repr(some_object),
hex(id(provider))))
class SelfProviderTests(unittest.TestCase):
def test_is_provider(self):
self.assertTrue(providers.is_provider(providers.Self()))
def test_call_object_provider(self):
container = containers.DeclarativeContainer()
self.assertIs(providers.Self(container)(), container)
def test_set_container(self):
container = containers.DeclarativeContainer()
provider = providers.Self()
provider.set_container(container)
self.assertIs(provider(), container)
def test_set_alt_names(self):
provider = providers.Self()
provider.set_alt_names({"foo", "bar", "baz"})
self.assertEqual(set(provider.alt_names), {"foo", "bar", "baz"})
def test_deepcopy(self):
provider = providers.Self()
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Self)
def test_deepcopy_from_memo(self):
provider = providers.Self()
provider_copy_memo = providers.Provider()
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_overridden(self):
provider = providers.Self()
overriding_provider = providers.Provider()
provider.override(overriding_provider)
provider_copy = providers.deepcopy(provider)
overriding_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Self)
self.assertIsNot(overriding_provider, overriding_provider_copy)
self.assertIsInstance(overriding_provider_copy, providers.Provider)
def test_repr(self):
container = containers.DeclarativeContainer()
provider = providers.Self(container)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"Self({0}) at {1}>".format(
repr(container),
hex(id(provider))))
class DelegateTests(unittest.TestCase):
def setUp(self):
self.delegated = providers.Provider()
self.delegate = providers.Delegate(self.delegated)
def test_is_provider(self):
self.assertTrue(providers.is_provider(self.delegate))
def test_init_optional_provides(self):
provider = providers.Delegate()
provider.set_provides(self.delegated)
self.assertIs(provider.provides, self.delegated)
self.assertIs(provider(), self.delegated)
def test_set_provides_returns_self(self):
provider = providers.Delegate()
self.assertIs(provider.set_provides(self.delegated), provider)
def test_init_with_not_provider(self):
self.assertRaises(errors.Error, providers.Delegate, object())
def test_call(self):
delegated1 = self.delegate()
delegated2 = self.delegate()
self.assertIs(delegated1, self.delegated)
self.assertIs(delegated2, self.delegated)
def test_repr(self):
self.assertEqual(repr(self.delegate),
"<dependency_injector.providers."
"Delegate({0}) at {1}>".format(
repr(self.delegated),
hex(id(self.delegate))))
class DependencyTests(unittest.TestCase):
def setUp(self):
self.provider = providers.Dependency(instance_of=list)
def test_init_optional(self):
list_provider = providers.List(1, 2, 3)
provider = providers.Dependency()
provider.set_instance_of(list)
provider.set_default(list_provider)
self.assertIs(provider.instance_of, list)
self.assertIs(provider.default, list_provider)
self.assertEqual(provider(), [1, 2, 3])
def test_set_instance_of_returns_self(self):
provider = providers.Dependency()
self.assertIs(provider.set_instance_of(list), provider)
def test_set_default_returns_self(self):
provider = providers.Dependency()
self.assertIs(provider.set_default(providers.Provider()), provider)
def test_init_with_not_class(self):
self.assertRaises(TypeError, providers.Dependency, object())
def test_with_abc(self):
try:
import collections.abc as collections_abc
except ImportError:
import collections as collections_abc
provider = providers.Dependency(collections_abc.Mapping)
provider.provided_by(providers.Factory(dict))
self.assertIsInstance(provider(), collections_abc.Mapping)
self.assertIsInstance(provider(), dict)
def test_is_provider(self):
self.assertTrue(providers.is_provider(self.provider))
def test_provided_instance_provider(self):
self.assertIsInstance(self.provider.provided, providers.ProvidedInstance)
def test_default(self):
provider = providers.Dependency(instance_of=dict, default={"foo": "bar"})
self.assertEqual(provider(), {"foo": "bar"})
def test_default_attribute(self):
provider = providers.Dependency(instance_of=dict, default={"foo": "bar"})
self.assertEqual(provider.default(), {"foo": "bar"})
def test_default_provider(self):
provider = providers.Dependency(instance_of=dict, default=providers.Factory(dict, foo="bar"))
self.assertEqual(provider.default(), {"foo": "bar"})
def test_default_attribute_provider(self):
default = providers.Factory(dict, foo="bar")
provider = providers.Dependency(instance_of=dict, default=default)
self.assertEqual(provider.default(), {"foo": "bar"})
self.assertIs(provider.default, default)
def test_is_defined(self):
provider = providers.Dependency()
self.assertFalse(provider.is_defined)
def test_is_defined_when_overridden(self):
provider = providers.Dependency()
provider.override("value")
self.assertTrue(provider.is_defined)
def test_is_defined_with_default(self):
provider = providers.Dependency(default="value")
self.assertTrue(provider.is_defined)
def test_call_overridden(self):
self.provider.provided_by(providers.Factory(list))
self.assertIsInstance(self.provider(), list)
def test_call_overridden_but_not_instance_of(self):
self.provider.provided_by(providers.Factory(dict))
self.assertRaises(errors.Error, self.provider)
def test_call_undefined(self):
with self.assertRaises(errors.Error) as context:
self.provider()
self.assertEqual(str(context.exception), "Dependency is not defined")
def test_call_undefined_error_message_with_container_instance_parent(self):
class UserService:
def __init__(self, database):
self.database = database
class Container(containers.DeclarativeContainer):
database = providers.Dependency()
user_service = providers.Factory(
UserService,
database=database, # <---- missing dependency
)
container = Container()
with self.assertRaises(errors.Error) as context:
container.user_service()
self.assertEqual(str(context.exception), "Dependency \"Container.database\" is not defined")
def test_call_undefined_error_message_with_container_provider_parent_deep(self):
class Database:
pass
class UserService:
def __init__(self, db):
self.db = db
class Gateways(containers.DeclarativeContainer):
database_client = providers.Singleton(Database)
class Services(containers.DeclarativeContainer):
gateways = providers.DependenciesContainer()
user = providers.Factory(
UserService,
db=gateways.database_client,
)
class Container(containers.DeclarativeContainer):
gateways = providers.Container(Gateways)
services = providers.Container(
Services,
# gateways=gateways, # <---- missing dependency
)
container = Container()
with self.assertRaises(errors.Error) as context:
container.services().user()
self.assertEqual(
str(context.exception),
"Dependency \"Container.services.gateways.database_client\" is not defined",
)
def test_call_undefined_error_message_with_dependenciescontainer_provider_parent(self):
class UserService:
def __init__(self, db):
self.db = db
class Services(containers.DeclarativeContainer):
gateways = providers.DependenciesContainer()
user = providers.Factory(
UserService,
db=gateways.database_client, # <---- missing dependency
)
services = Services()
with self.assertRaises(errors.Error) as context:
services.user()
self.assertEqual(
str(context.exception),
"Dependency \"Services.gateways.database_client\" is not defined",
)
def test_assign_parent(self):
parent = providers.DependenciesContainer()
provider = providers.Dependency()
provider.assign_parent(parent)
self.assertIs(provider.parent, parent)
def test_parent_name(self):
container = containers.DynamicContainer()
provider = providers.Dependency()
container.name = provider
self.assertEqual(provider.parent_name, "name")
def test_parent_name_with_deep_parenting(self):
provider = providers.Dependency()
container = providers.DependenciesContainer(name=provider)
_ = providers.DependenciesContainer(container=container)
self.assertEqual(provider.parent_name, "container.name")
def test_parent_name_is_none(self):
provider = providers.DependenciesContainer()
self.assertIsNone(provider.parent_name)
def test_parent_deepcopy(self):
container = containers.DynamicContainer()
provider = providers.Dependency()
container.name = provider
copied = providers.deepcopy(container)
self.assertIs(container.name.parent, container)
self.assertIs(copied.name.parent, copied)
self.assertIsNot(container, copied)
self.assertIsNot(container.name, copied.name)
self.assertIsNot(container.name.parent, copied.name.parent)
def test_forward_attr_to_default(self):
default = providers.Configuration()
provider = providers.Dependency(default=default)
provider.from_dict({"foo": "bar"})
self.assertEqual(default(), {"foo": "bar"})
def test_forward_attr_to_overriding(self):
overriding = providers.Configuration()
provider = providers.Dependency()
provider.override(overriding)
provider.from_dict({"foo": "bar"})
self.assertEqual(overriding(), {"foo": "bar"})
def test_forward_attr_to_none(self):
provider = providers.Dependency()
with self.assertRaises(AttributeError):
provider.from_dict
def test_deepcopy(self):
provider = providers.Dependency(int)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Dependency)
def test_deepcopy_from_memo(self):
provider = providers.Dependency(int)
provider_copy_memo = providers.Provider()
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_overridden(self):
provider = providers.Dependency(int)
overriding_provider = providers.Provider()
provider.override(overriding_provider)
provider_copy = providers.deepcopy(provider)
overriding_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider, providers.Dependency)
self.assertIsNot(overriding_provider, overriding_provider_copy)
self.assertIsInstance(overriding_provider_copy, providers.Provider)
def test_deep_copy_default_object(self):
default = {"foo": "bar"}
provider = providers.Dependency(dict, default=default)
provider_copy = providers.deepcopy(provider)
self.assertIs(provider_copy(), default)
self.assertIs(provider_copy.default(), default)
def test_deep_copy_default_provider(self):
bar = object()
default = providers.Factory(dict, foo=providers.Object(bar))
provider = providers.Dependency(dict, default=default)
provider_copy = providers.deepcopy(provider)
self.assertEqual(provider_copy(), {"foo": bar})
self.assertEqual(provider_copy.default(), {"foo": bar})
self.assertIs(provider_copy()["foo"], bar)
def test_with_container_default_object(self):
default = {"foo": "bar"}
class Container(containers.DeclarativeContainer):
provider = providers.Dependency(dict, default=default)
container = Container()
self.assertIs(container.provider(), default)
self.assertIs(container.provider.default(), default)
def test_with_container_default_provider(self):
bar = object()
class Container(containers.DeclarativeContainer):
provider = providers.Dependency(dict, default=providers.Factory(dict, foo=providers.Object(bar)))
container = Container()
self.assertEqual(container.provider(), {"foo": bar})
self.assertEqual(container.provider.default(), {"foo": bar})
self.assertIs(container.provider()["foo"], bar)
def test_with_container_default_provider_with_overriding(self):
bar = object()
baz = object()
class Container(containers.DeclarativeContainer):
provider = providers.Dependency(dict, default=providers.Factory(dict, foo=providers.Object(bar)))
container = Container(provider=providers.Factory(dict, foo=providers.Object(baz)))
self.assertEqual(container.provider(), {"foo": baz})
self.assertEqual(container.provider.default(), {"foo": bar})
self.assertIs(container.provider()["foo"], baz)
def test_repr(self):
self.assertEqual(repr(self.provider),
"<dependency_injector.providers."
"Dependency({0}) at {1}>".format(
repr(list),
hex(id(self.provider))))
def test_repr_in_container(self):
class Container(containers.DeclarativeContainer):
dependency = providers.Dependency(instance_of=int)
container = Container()
self.assertEqual(repr(container.dependency),
"<dependency_injector.providers."
"Dependency({0}) at {1}, container name: \"Container.dependency\">".format(
repr(int),
hex(id(container.dependency))))
class ExternalDependencyTests(unittest.TestCase):
def setUp(self):
self.provider = providers.ExternalDependency(instance_of=list)
def test_is_instance(self):
self.assertIsInstance(self.provider, providers.Dependency)
class DependenciesContainerTests(unittest.TestCase):
class Container(containers.DeclarativeContainer):
dependency = providers.Provider()
def setUp(self):
self.provider = providers.DependenciesContainer()
self.container = self.Container()
def test_getattr(self):
has_dependency = hasattr(self.provider, "dependency")
dependency = self.provider.dependency
self.assertIsInstance(dependency, providers.Dependency)
self.assertIs(dependency, self.provider.dependency)
self.assertTrue(has_dependency)
self.assertIsNone(dependency.last_overriding)
def test_getattr_with_container(self):
self.provider.override(self.container)
dependency = self.provider.dependency
self.assertTrue(dependency.overridden)
self.assertIs(dependency.last_overriding, self.container.dependency)
def test_providers(self):
dependency1 = self.provider.dependency1
dependency2 = self.provider.dependency2
self.assertEqual(self.provider.providers, {"dependency1": dependency1,
"dependency2": dependency2})
def test_override(self):
dependency = self.provider.dependency
self.provider.override(self.container)
self.assertTrue(dependency.overridden)
self.assertIs(dependency.last_overriding, self.container.dependency)
def test_reset_last_overriding(self):
dependency = self.provider.dependency
self.provider.override(self.container)
self.provider.reset_last_overriding()
self.assertIsNone(dependency.last_overriding)
self.assertIsNone(dependency.last_overriding)
def test_reset_override(self):
dependency = self.provider.dependency
self.provider.override(self.container)
self.provider.reset_override()
self.assertFalse(dependency.overridden)
self.assertFalse(dependency.overridden)
def test_assign_parent(self):
parent = providers.DependenciesContainer()
provider = providers.DependenciesContainer()
provider.assign_parent(parent)
self.assertIs(provider.parent, parent)
def test_parent_name(self):
container = containers.DynamicContainer()
provider = providers.DependenciesContainer()
container.name = provider
self.assertEqual(provider.parent_name, "name")
def test_parent_name_with_deep_parenting(self):
provider = providers.DependenciesContainer()
container = providers.DependenciesContainer(name=provider)
_ = providers.DependenciesContainer(container=container)
self.assertEqual(provider.parent_name, "container.name")
def test_parent_name_is_none(self):
provider = providers.DependenciesContainer()
self.assertIsNone(provider.parent_name)
def test_parent_deepcopy(self):
container = containers.DynamicContainer()
provider = providers.DependenciesContainer()
container.name = provider
copied = providers.deepcopy(container)
self.assertIs(container.name.parent, container)
self.assertIs(copied.name.parent, copied)
self.assertIsNot(container, copied)
self.assertIsNot(container.name, copied.name)
self.assertIsNot(container.name.parent, copied.name.parent)
def test_parent_set_on__getattr__(self):
provider = providers.DependenciesContainer()
self.assertIsInstance(provider.name, providers.Dependency)
self.assertIs(provider.name.parent, provider)
def test_parent_set_on__init__(self):
provider = providers.Dependency()
container = providers.DependenciesContainer(name=provider)
self.assertIs(container.name, provider)
self.assertIs(container.name.parent, container)
def test_resolve_provider_name(self):
container = providers.DependenciesContainer()
self.assertEqual(container.resolve_provider_name(container.name), "name")
def test_resolve_provider_name_no_provider(self):
container = providers.DependenciesContainer()
with self.assertRaises(errors.Error):
container.resolve_provider_name(providers.Provider())

296
tests/unit/providers/test_callables_py2_py3.py
View File

@ -1,296 +0,0 @@
"""Dependency injector callable providers unit tests."""
import sys
import unittest
from dependency_injector import (
providers,
errors,
)
def _example(arg1, arg2, arg3, arg4):
return arg1, arg2, arg3, arg4
class CallableTests(unittest.TestCase):
def test_init_with_callable(self):
self.assertTrue(providers.Callable(_example))
def test_init_with_not_callable(self):
self.assertRaises(errors.Error, providers.Callable, 123)
def test_init_optional_provides(self):
provider = providers.Callable()
provider.set_provides(object)
self.assertIs(provider.provides, object)
self.assertIsInstance(provider(), object)
def test_set_provides_returns_self(self):
provider = providers.Callable()
self.assertIs(provider.set_provides(object), provider)
def test_provided_instance_provider(self):
provider = providers.Callable(_example)
self.assertIsInstance(provider.provided, providers.ProvidedInstance)
def test_call(self):
provider = providers.Callable(lambda: True)
self.assertTrue(provider())
def test_call_with_positional_args(self):
provider = providers.Callable(_example,
1, 2, 3, 4)
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_call_with_keyword_args(self):
provider = providers.Callable(_example,
arg1=1, arg2=2, arg3=3, arg4=4)
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_call_with_positional_and_keyword_args(self):
provider = providers.Callable(_example,
1, 2,
arg3=3, arg4=4)
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_call_with_context_args(self):
provider = providers.Callable(_example, 1, 2)
self.assertTupleEqual(provider(3, 4), (1, 2, 3, 4))
def test_call_with_context_kwargs(self):
provider = providers.Callable(_example, arg1=1)
self.assertTupleEqual(provider(arg2=2, arg3=3, arg4=4), (1, 2, 3, 4))
def test_call_with_context_args_and_kwargs(self):
provider = providers.Callable(_example, 1)
self.assertTupleEqual(provider(2, arg3=3, arg4=4), (1, 2, 3, 4))
def test_fluent_interface(self):
provider = providers.Singleton(_example) \
.add_args(1, 2) \
.add_kwargs(arg3=3, arg4=4)
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_set_args(self):
provider = providers.Callable(_example) \
.add_args(1, 2) \
.set_args(3, 4)
self.assertEqual(provider.args, (3, 4))
def test_set_kwargs(self):
provider = providers.Callable(_example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
self.assertEqual(provider.kwargs, dict(init_arg3=4, init_arg4=5))
def test_clear_args(self):
provider = providers.Callable(_example) \
.add_args(1, 2) \
.clear_args()
self.assertEqual(provider.args, tuple())
def test_clear_kwargs(self):
provider = providers.Callable(_example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
self.assertEqual(provider.kwargs, dict())
def test_call_overridden(self):
provider = providers.Callable(_example)
provider.override(providers.Object((4, 3, 2, 1)))
provider.override(providers.Object((1, 2, 3, 4)))
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_deepcopy(self):
provider = providers.Callable(_example)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.provides, provider_copy.provides)
self.assertIsInstance(provider, providers.Callable)
def test_deepcopy_from_memo(self):
provider = providers.Callable(_example)
provider_copy_memo = providers.Callable(_example)
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_args(self):
provider = providers.Callable(_example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
self.assertNotEqual(provider.args, provider_copy.args)
self.assertIs(dependent_provider1.provides,
dependent_provider_copy1.provides)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.provides,
dependent_provider_copy2.provides)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_kwargs(self):
provider = providers.Callable(_example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
self.assertNotEqual(provider.kwargs, provider_copy.kwargs)
self.assertIs(dependent_provider1.provides,
dependent_provider_copy1.provides)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.provides,
dependent_provider_copy2.provides)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_overridden(self):
provider = providers.Callable(_example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.provides, provider_copy.provides)
self.assertIsInstance(provider, providers.Callable)
self.assertIsNot(object_provider, object_provider_copy)
self.assertIsInstance(object_provider_copy, providers.Object)
def test_deepcopy_with_sys_streams(self):
provider = providers.Callable(_example)
provider.add_args(sys.stdin)
provider.add_kwargs(a2=sys.stdout)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIsInstance(provider_copy, providers.Callable)
self.assertIs(provider.args[0], sys.stdin)
self.assertIs(provider.kwargs["a2"], sys.stdout)
def test_repr(self):
provider = providers.Callable(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"Callable({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class DelegatedCallableTests(unittest.TestCase):
def test_inheritance(self):
self.assertIsInstance(providers.DelegatedCallable(_example),
providers.Callable)
def test_is_provider(self):
self.assertTrue(
providers.is_provider(providers.DelegatedCallable(_example)))
def test_is_delegated_provider(self):
provider = providers.DelegatedCallable(_example)
self.assertTrue(providers.is_delegated(provider))
def test_repr(self):
provider = providers.DelegatedCallable(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"DelegatedCallable({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class AbstractCallableTests(unittest.TestCase):
def test_inheritance(self):
self.assertIsInstance(providers.AbstractCallable(_example),
providers.Callable)
def test_call_overridden_by_callable(self):
def _abstract_example():
pass
provider = providers.AbstractCallable(_abstract_example)
provider.override(providers.Callable(_example))
self.assertTrue(provider(1, 2, 3, 4), (1, 2, 3, 4))
def test_call_overridden_by_delegated_callable(self):
def _abstract_example():
pass
provider = providers.AbstractCallable(_abstract_example)
provider.override(providers.DelegatedCallable(_example))
self.assertTrue(provider(1, 2, 3, 4), (1, 2, 3, 4))
def test_call_not_overridden(self):
provider = providers.AbstractCallable(_example)
with self.assertRaises(errors.Error):
provider(1, 2, 3, 4)
def test_override_by_not_callable(self):
provider = providers.AbstractCallable(_example)
with self.assertRaises(errors.Error):
provider.override(providers.Factory(object))
def test_provide_not_implemented(self):
provider = providers.AbstractCallable(_example)
with self.assertRaises(NotImplementedError):
provider._provide((1, 2, 3, 4), dict())
def test_repr(self):
provider = providers.AbstractCallable(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"AbstractCallable({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class CallableDelegateTests(unittest.TestCase):
def setUp(self):
self.delegated = providers.Callable(_example)
self.delegate = providers.CallableDelegate(self.delegated)
def test_is_delegate(self):
self.assertIsInstance(self.delegate, providers.Delegate)
def test_init_with_not_callable(self):
self.assertRaises(errors.Error,
providers.CallableDelegate,
providers.Object(object()))

1579
tests/unit/providers/test_configuration_py2_py3.py
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174
tests/unit/providers/test_container_py2_py3.py
View File

@ -1,10 +1,9 @@
"""Dependency injector container provider unit tests."""
"""Container provider tests."""
import copy
import unittest
from dependency_injector import containers, providers, errors
from pytest import raises
TEST_VALUE_1 = "core_section_value1"
@ -30,30 +29,30 @@ def _copied(value):
return copy.deepcopy(value)
class TestCore(containers.DeclarativeContainer):
class Core(containers.DeclarativeContainer):
config = providers.Configuration("core")
value_getter = providers.Callable(lambda _: _, config.section.value)
class TestApplication(containers.DeclarativeContainer):
class Application(containers.DeclarativeContainer):
config = providers.Configuration("config")
core = providers.Container(TestCore, config=config.core)
core = providers.Container(Core, config=config.core)
dict_factory = providers.Factory(dict, value=core.value_getter)
class ContainerTests(unittest.TestCase):
def test():
application = Application(config=_copied(TEST_CONFIG_1))
assert application.dict_factory() == {"value": TEST_VALUE_1}
def test(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_1})
def test_double_override(self):
application = TestApplication()
def test_double_override():
application = Application()
application.config.override(_copied(TEST_CONFIG_1))
application.config.override(_copied(TEST_CONFIG_2))
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_2})
assert application.dict_factory() == {"value": TEST_VALUE_2}
def test_override(self):
def test_override():
# See: https://github.com/ets-labs/python-dependency-injector/issues/354
class D(containers.DeclarativeContainer):
foo = providers.Object("foo")
@ -69,9 +68,10 @@ class ContainerTests(unittest.TestCase):
b = B(d=D())
result = b.a().bar()
self.assertEqual(result, "foo++")
assert result == "foo++"
def test_override_not_root_provider(self):
def test_override_not_root_provider():
# See: https://github.com/ets-labs/python-dependency-injector/issues/379
class NestedContainer(containers.DeclarativeContainer):
settings = providers.Configuration()
@ -105,38 +105,26 @@ class ContainerTests(unittest.TestCase):
container="using_factory",
foo="bar"
))
self.assertEqual(
container_using_factory.root_container().print_settings(),
{"container": "using_factory", "foo": "bar"},
)
self.assertEqual(
container_using_factory.not_root_container().print_settings(),
{"container": "using_factory", "foo": "bar"},
)
assert container_using_factory.root_container().print_settings() == {"container": "using_factory", "foo": "bar"}
assert container_using_factory.not_root_container().print_settings() == {"container": "using_factory", "foo": "bar"}
container_using_container = TestContainer(settings=dict(
container="using_container",
foo="bar"
))
self.assertEqual(
container_using_container.root_container().print_settings(),
{"container": "using_container", "foo": "bar"},
)
self.assertEqual(
container_using_container.not_root_container().print_settings(),
{"container": "using_container", "foo": "bar"},
)
assert container_using_container.root_container().print_settings() == {"container": "using_container", "foo": "bar"}
assert container_using_container.not_root_container().print_settings() == {"container": "using_container", "foo": "bar"}
def test_override_by_not_a_container(self):
provider = providers.Container(TestCore)
with self.assertRaises(errors.Error):
def test_override_by_not_a_container():
provider = providers.Container(Core)
with raises(errors.Error):
provider.override(providers.Object("foo"))
def test_lazy_overriding(self):
# See: https://github.com/ets-labs/python-dependency-injector/issues/354
def test_lazy_overriding():
# See: https://github.com/ets-labs/python-dependency-injector/issues/354
class D(containers.DeclarativeContainer):
foo = providers.Object("foo")
@ -151,11 +139,11 @@ class ContainerTests(unittest.TestCase):
b = B(d=D())
result = b.a().bar()
self.assertEqual(result, "foo++")
assert result == "foo++"
def test_lazy_overriding_deep(self):
def test_lazy_overriding_deep():
# Extended version of test_lazy_overriding()
class D(containers.DeclarativeContainer):
foo = providers.Object("foo")
@ -174,93 +162,105 @@ class ContainerTests(unittest.TestCase):
b = B(d=D())
result = b.a().c().bar()
self.assertEqual(result, "foo++")
assert result == "foo++"
def test_reset_last_overriding(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
application.core.override(TestCore(config=_copied(TEST_CONFIG_2["core"])))
def test_reset_last_overriding():
application = Application(config=_copied(TEST_CONFIG_1))
application.core.override(Core(config=_copied(TEST_CONFIG_2["core"])))
application.core.reset_last_overriding()
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_1})
assert application.dict_factory() == {"value": TEST_VALUE_1}
def test_reset_last_overriding_only_overridden(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
def test_reset_last_overriding_only_overridden():
application = Application(config=_copied(TEST_CONFIG_1))
application.core.override(providers.DependenciesContainer(config=_copied(TEST_CONFIG_2["core"])))
application.core.reset_last_overriding()
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_1})
assert application.dict_factory() == {"value": TEST_VALUE_1}
def test_override_context_manager(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
overriding_core = TestCore(config=_copied(TEST_CONFIG_2["core"]))
def test_override_context_manager():
application = Application(config=_copied(TEST_CONFIG_1))
overriding_core = Core(config=_copied(TEST_CONFIG_2["core"]))
with application.core.override(overriding_core) as context_core:
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_2})
self.assertIs(context_core(), overriding_core)
assert application.dict_factory() == {"value": TEST_VALUE_2}
assert context_core() is overriding_core
self.assertEqual(application.dict_factory(), {"value": TEST_VALUE_1})
assert application.dict_factory() == {"value": TEST_VALUE_1}
def test_reset_override(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
application.core.override(TestCore(config=_copied(TEST_CONFIG_2["core"])))
def test_reset_override():
application = Application(config=_copied(TEST_CONFIG_1))
application.core.override(Core(config=_copied(TEST_CONFIG_2["core"])))
application.core.reset_override()
self.assertEqual(application.dict_factory(), {"value": None})
assert application.dict_factory() == {"value": None}
def test_reset_override_only_overridden(self):
application = TestApplication(config=_copied(TEST_CONFIG_1))
def test_reset_override_only_overridden():
application = Application(config=_copied(TEST_CONFIG_1))
application.core.override(providers.DependenciesContainer(config=_copied(TEST_CONFIG_2["core"])))
application.core.reset_override()
self.assertEqual(application.dict_factory(), {"value": None})
assert application.dict_factory() == {"value": None}
def test_assign_parent(self):
def test_assign_parent():
parent = providers.DependenciesContainer()
provider = providers.Container(TestCore)
provider = providers.Container(Core)
provider.assign_parent(parent)
self.assertIs(provider.parent, parent)
assert provider.parent is parent
def test_parent_name(self):
def test_parent_name():
container = containers.DynamicContainer()
provider = providers.Container(TestCore)
provider = providers.Container(Core)
container.name = provider
self.assertEqual(provider.parent_name, "name")
assert provider.parent_name == "name"
def test_parent_name_with_deep_parenting(self):
provider = providers.Container(TestCore)
def test_parent_name_with_deep_parenting():
provider = providers.Container(Core)
container = providers.DependenciesContainer(name=provider)
_ = providers.DependenciesContainer(container=container)
self.assertEqual(provider.parent_name, "container.name")
assert provider.parent_name == "container.name"
def test_parent_name_is_none(self):
provider = providers.Container(TestCore)
self.assertIsNone(provider.parent_name)
def test_parent_deepcopy(self):
def test_parent_name_is_none():
provider = providers.Container(Core)
assert provider.parent_name is None
def test_parent_deepcopy():
container = containers.DynamicContainer()
provider = providers.Container(TestCore)
provider = providers.Container(Core)
container.name = provider
copied = providers.deepcopy(container)
self.assertIs(container.name.parent, container)
self.assertIs(copied.name.parent, copied)
assert container.name.parent is container
assert copied.name.parent is copied
self.assertIsNot(container, copied)
self.assertIsNot(container.name, copied.name)
self.assertIsNot(container.name.parent, copied.name.parent)
assert container is not copied
assert container.name is not copied.name
assert container.name.parent is not copied.name.parent
def test_resolve_provider_name(self):
container = providers.Container(TestCore)
self.assertEqual(container.resolve_provider_name(container.value_getter), "value_getter")
def test_resolve_provider_name_no_provider(self):
container = providers.Container(TestCore)
with self.assertRaises(errors.Error):
def test_resolve_provider_name():
container = providers.Container(Core)
assert container.resolve_provider_name(container.value_getter) == "value_getter"
def test_resolve_provider_name_no_provider():
container = providers.Container(Core)
with raises(errors.Error):
container.resolve_provider_name(providers.Provider())

305
tests/unit/providers/test_coroutines_py35.py
View File

@ -1,305 +0,0 @@
"""Dependency injector coroutine providers unit tests."""
import asyncio
import unittest
import warnings
from dependency_injector import (
providers,
errors,
)
# Runtime import to get asyncutils module
import os
_TOP_DIR = os.path.abspath(
os.path.sep.join((
os.path.dirname(__file__),
"../",
)),
)
import sys
sys.path.append(_TOP_DIR)
from asyncutils import AsyncTestCase
async def _example(arg1, arg2, arg3, arg4):
future = asyncio.Future()
future.set_result(None)
await future
return arg1, arg2, arg3, arg4
class CoroutineTests(AsyncTestCase):
def test_init_with_coroutine(self):
self.assertTrue(providers.Coroutine(_example))
def test_init_with_not_coroutine(self):
self.assertRaises(errors.Error, providers.Coroutine, lambda: None)
def test_init_optional_provides(self):
provider = providers.Coroutine()
provider.set_provides(_example)
self.assertIs(provider.provides, _example)
self.assertEqual(self._run(provider(1, 2, 3, 4)), (1, 2, 3, 4))
def test_set_provides_returns_self(self):
provider = providers.Coroutine()
self.assertIs(provider.set_provides(_example), provider)
def test_call_with_positional_args(self):
provider = providers.Coroutine(_example, 1, 2, 3, 4)
self.assertTupleEqual(self._run(provider()), (1, 2, 3, 4))
def test_call_with_keyword_args(self):
provider = providers.Coroutine(_example,
arg1=1, arg2=2, arg3=3, arg4=4)
self.assertTupleEqual(self._run(provider()), (1, 2, 3, 4))
def test_call_with_positional_and_keyword_args(self):
provider = providers.Coroutine(_example,
1, 2,
arg3=3, arg4=4)
self.assertTupleEqual(self._run(provider()), (1, 2, 3, 4))
def test_call_with_context_args(self):
provider = providers.Coroutine(_example, 1, 2)
self.assertTupleEqual(self._run(provider(3, 4)), (1, 2, 3, 4))
def test_call_with_context_kwargs(self):
provider = providers.Coroutine(_example, arg1=1)
self.assertTupleEqual(
self._run(provider(arg2=2, arg3=3, arg4=4)),
(1, 2, 3, 4),
)
def test_call_with_context_args_and_kwargs(self):
provider = providers.Coroutine(_example, 1)
self.assertTupleEqual(
self._run(provider(2, arg3=3, arg4=4)),
(1, 2, 3, 4),
)
def test_fluent_interface(self):
provider = providers.Coroutine(_example) \
.add_args(1, 2) \
.add_kwargs(arg3=3, arg4=4)
self.assertTupleEqual(self._run(provider()), (1, 2, 3, 4))
def test_set_args(self):
provider = providers.Coroutine(_example) \
.add_args(1, 2) \
.set_args(3, 4)
self.assertEqual(provider.args, (3, 4))
def test_set_kwargs(self):
provider = providers.Coroutine(_example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.set_kwargs(init_arg3=4, init_arg4=5)
self.assertEqual(provider.kwargs, dict(init_arg3=4, init_arg4=5))
def test_clear_args(self):
provider = providers.Coroutine(_example) \
.add_args(1, 2) \
.clear_args()
self.assertEqual(provider.args, tuple())
def test_clear_kwargs(self):
provider = providers.Coroutine(_example) \
.add_kwargs(init_arg3=3, init_arg4=4) \
.clear_kwargs()
self.assertEqual(provider.kwargs, dict())
def test_call_overridden(self):
provider = providers.Coroutine(_example)
provider.override(providers.Object((4, 3, 2, 1)))
provider.override(providers.Object((1, 2, 3, 4)))
self.assertTupleEqual(provider(), (1, 2, 3, 4))
def test_deepcopy(self):
provider = providers.Coroutine(_example)
provider_copy = providers.deepcopy(provider)
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.provides, provider_copy.provides)
self.assertIsInstance(provider, providers.Coroutine)
def test_deepcopy_from_memo(self):
provider = providers.Coroutine(_example)
provider_copy_memo = providers.Coroutine(_example)
provider_copy = providers.deepcopy(
provider, memo={id(provider): provider_copy_memo})
self.assertIs(provider_copy, provider_copy_memo)
def test_deepcopy_args(self):
provider = providers.Coroutine(_example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_args(dependent_provider1, dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.args[0]
dependent_provider_copy2 = provider_copy.args[1]
self.assertNotEqual(provider.args, provider_copy.args)
self.assertIs(dependent_provider1.provides,
dependent_provider_copy1.provides)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.provides,
dependent_provider_copy2.provides)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_kwargs(self):
provider = providers.Coroutine(_example)
dependent_provider1 = providers.Callable(list)
dependent_provider2 = providers.Callable(dict)
provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
provider_copy = providers.deepcopy(provider)
dependent_provider_copy1 = provider_copy.kwargs["a1"]
dependent_provider_copy2 = provider_copy.kwargs["a2"]
self.assertNotEqual(provider.kwargs, provider_copy.kwargs)
self.assertIs(dependent_provider1.provides,
dependent_provider_copy1.provides)
self.assertIsNot(dependent_provider1, dependent_provider_copy1)
self.assertIs(dependent_provider2.provides,
dependent_provider_copy2.provides)
self.assertIsNot(dependent_provider2, dependent_provider_copy2)
def test_deepcopy_overridden(self):
provider = providers.Coroutine(_example)
object_provider = providers.Object(object())
provider.override(object_provider)
provider_copy = providers.deepcopy(provider)
object_provider_copy = provider_copy.overridden[0]
self.assertIsNot(provider, provider_copy)
self.assertIs(provider.provides, provider_copy.provides)
self.assertIsInstance(provider, providers.Callable)
self.assertIsNot(object_provider, object_provider_copy)
self.assertIsInstance(object_provider_copy, providers.Object)
def test_repr(self):
provider = providers.Coroutine(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"Coroutine({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class DelegatedCoroutineTests(unittest.TestCase):
def test_inheritance(self):
self.assertIsInstance(providers.DelegatedCoroutine(_example),
providers.Coroutine)
def test_is_provider(self):
self.assertTrue(
providers.is_provider(providers.DelegatedCoroutine(_example)))
def test_is_delegated_provider(self):
provider = providers.DelegatedCoroutine(_example)
self.assertTrue(providers.is_delegated(provider))
def test_repr(self):
provider = providers.DelegatedCoroutine(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"DelegatedCoroutine({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class AbstractCoroutineTests(AsyncTestCase):
def test_inheritance(self):
self.assertIsInstance(providers.AbstractCoroutine(_example),
providers.Coroutine)
def test_call_overridden_by_coroutine(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
@asyncio.coroutine
def _abstract_example():
raise RuntimeError("Should not be raised")
provider = providers.AbstractCoroutine(_abstract_example)
provider.override(providers.Coroutine(_example))
self.assertTrue(self._run(provider(1, 2, 3, 4)), (1, 2, 3, 4))
def test_call_overridden_by_delegated_coroutine(self):
with warnings.catch_warnings():
warnings.simplefilter("ignore")
@asyncio.coroutine
def _abstract_example():
raise RuntimeError("Should not be raised")
provider = providers.AbstractCoroutine(_abstract_example)
provider.override(providers.DelegatedCoroutine(_example))
self.assertTrue(self._run(provider(1, 2, 3, 4)), (1, 2, 3, 4))
def test_call_not_overridden(self):
provider = providers.AbstractCoroutine(_example)
with self.assertRaises(errors.Error):
provider(1, 2, 3, 4)
def test_override_by_not_coroutine(self):
provider = providers.AbstractCoroutine(_example)
with self.assertRaises(errors.Error):
provider.override(providers.Factory(object))
def test_provide_not_implemented(self):
provider = providers.AbstractCoroutine(_example)
with self.assertRaises(NotImplementedError):
provider._provide((1, 2, 3, 4), dict())
def test_repr(self):
provider = providers.AbstractCoroutine(_example)
self.assertEqual(repr(provider),
"<dependency_injector.providers."
"AbstractCoroutine({0}) at {1}>".format(
repr(_example),
hex(id(provider))))
class CoroutineDelegateTests(unittest.TestCase):
def setUp(self):
self.delegated = providers.Coroutine(_example)
self.delegate = providers.CoroutineDelegate(self.delegated)
def test_is_delegate(self):
self.assertIsInstance(self.delegate, providers.Delegate)
def test_init_with_not_callable(self):
self.assertRaises(errors.Error,
providers.CoroutineDelegate,
providers.Object(object()))

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