python-dependency-injector/tests/unit/providers/test_callables_py2_py3.py
Roman Mogylatov f961ff536a
Schemas (#429)
* Add single container prototype

* Add multiple containers prototype

* Add integration tests

* Implement from_*() methods and add tests

* Prototype inline injections

* Add integration test for inline providers

* Refactor integration tests

* Add integration test for reordered schema

* Remove unused imports from tests

* Refactor schema module

* Update tests to match latest schemas

* Add mypy_boto3_s3 to the test requirements

* Add boto3 to the test requirements

* Add set_provides for Callable, Factory, and Singleton providers

* Fix warnings in tests

* Add typing stubs for Callable, Factory, and Singleton .set_provides() attributes

* Fix singleton children to have optional provides

* Implement provider to provider resolving

* Fix pypy3 tests

* Implement boto3 session use case and add tests

* Implement lazy initialization and improve copying for Callable, Factory, Singleton, and Coroutine providers

* Fix Python 2 tests

* Add region name for boto3 integration example

* Remove f-strings from set_provides()

* Fix schema flake8 errors

* Implement lazy initialization and improve copying for Delegate provider

* Implement lazy initialization and improve copying for Object provider

* Speed up wiring tests

* Implement lazy initialization and improve copying for FactoryAggregate provider

* Implement lazy initialization and improve copying for Selector provider

* Implement lazy initialization and improve copying for Dependency provider

* Implement lazy initialization and improve copying for Resource provider

* Implement lazy initialization and improve copying for Configuration provider

* Implement lazy initialization and improve copying for ProvidedInstance provider

* Implement lazy initialization and improve copying for AttributeGetter provider

* Implement lazy initialization and improve copying for ItemGetter provider

* Implement lazy initialization and improve copying for MethodCaller provder

* Update changelog

* Fix typing in wiring module

* Fix wiring module loader uninstallation issue

* Fix provided instance providers error handing in asynchronous mode

Co-authored-by: Roman Mogylatov <rmk@Romans-MacBook-Pro.local>
2021-03-20 13:16:51 -04:00

297 lines
10 KiB
Python

"""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()))