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https://github.com/ets-labs/python-dependency-injector.git
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94aca21fb8
* Add pytest and pytest-asyncio to the requirements * Update aiohttp ext test * Update setup.cfg * Update tox.ini * Add pytest to the tox requirements * Update tox.ini * Move configuration to tox.ini * Add pytest configs * Rename pytest-py34-py35.ini -> pytest-py35.ini * Update config file paths * Update makefile * Migrate common tests to pytest * Migrate FastAPI and Flask wiring tests * Rename flask and fastapi wiring test files * Move wiring autoloader tests * Add pytest-asyncio to the tox.ini * Migrate wiring async injection tests * Migrate main wiring tests * Migrate wiring string module and package names tests * Migrate wiring config tests * Migrate misc wiring tests * Update tests structure * Migrate misc wiring tests * Refactor container.from_schema() API tests * Migrate container.from_schema() integration tests * Rename schema samples * Update sample imports * Migrate container tests * Refactor container tests * Migrate container self tests * Migrate container instance tests * Migrate container custom string attribute name tests * Migrate container async resource tests * Fix py2 container tests * Migrate container cls tests * Migrate container class custom string cls as atrribute name tests * Migrate ext.aiohttp tests * Migrate ext.flasks tests * Update ext package tests doc block * Migrate provider utils tests * Migrate Factory async mode tests * Migrate async tests * Rename common test module * Refactor asserts in provider tests * Migrate factory tests * Migrate selector provider tests * Migrate object provider tests * Migrate self provider tests * Migrate delegate provider tests * Migrate provider tests * Migrate dependency provider tests * Migrate dependencies container provider tests * Fix warnings * Migrate list provider tests * Migrate dict provider tests * Migrate callable tests * Migrate injection tests * Migrate container provider tests * Migrate coroutine providers * Migrate traversal tests * Migrate resource tests * Migrate configuration tests * Migrate provided instance provider tests * Update doc blocks and imports * Migrate singleton tests * Update changelog and cosmetic fixes
494 lines
14 KiB
Python
494 lines
14 KiB
Python
"""Main container instance tests."""
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from dependency_injector import containers, providers, errors
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from pytest import raises
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class Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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def test_providers_attribute():
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container_1 = Container()
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container_2 = Container()
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assert container_1.p11 is not container_2.p11
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assert container_1.p12 is not container_2.p12
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assert container_1.providers != container_2.providers
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def test_dependencies_attribute():
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container = Container()
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container.a1 = providers.Dependency()
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container.a2 = providers.DependenciesContainer()
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assert container.dependencies == {"a1": container.a1, "a2": container.a2}
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def test_set_get_del_providers():
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p13 = providers.Provider()
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container_1 = Container()
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container_2 = Container()
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container_1.p13 = p13
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container_2.p13 = p13
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assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
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assert Container.cls_providers, dict(p11=Container.p11, p12=Container.p12)
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assert container_1.providers == dict(p11=container_1.p11, p12=container_1.p12, p13=p13)
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assert container_2.providers == dict(p11=container_2.p11, p12=container_2.p12, p13=p13)
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del container_1.p13
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assert container_1.providers == dict(p11=container_1.p11, p12=container_1.p12)
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del container_2.p13
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assert container_2.providers == dict(p11=container_2.p11, p12=container_2.p12)
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del container_1.p11
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del container_1.p12
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assert container_1.providers == dict()
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assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
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del container_2.p11
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del container_2.p12
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assert container_2.providers == dict()
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assert Container.providers == dict(p11=Container.p11, p12=Container.p12)
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def test_set_invalid_provider_type():
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container = Container()
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container.provider_type = providers.Object
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with raises(errors.Error):
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container.px = providers.Provider()
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assert Container.provider_type is containers.DeclarativeContainer.provider_type
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def test_set_providers():
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p13 = providers.Provider()
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p14 = providers.Provider()
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container = Container()
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container.set_providers(p13=p13, p14=p14)
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assert container.p13 is p13
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assert container.p14 is p14
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def test_override():
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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assert container.overridden == (overriding_container1, overriding_container2)
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assert container.p11.overridden == (overriding_container1.p11, overriding_container2.p11)
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assert _Container.overridden == tuple()
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assert _Container.p11.overridden == tuple()
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def test_override_with_it():
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container = Container()
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with raises(errors.Error):
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container.override(container)
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def test_override_providers():
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p1 = providers.Provider()
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p2 = providers.Provider()
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container = Container()
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container.override_providers(p11=p1, p12=p2)
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assert container.p11.last_overriding is p1
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assert container.p12.last_overriding is p2
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def test_override_providers_context_manager():
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p1 = providers.Provider()
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p2 = providers.Provider()
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container = Container()
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with container.override_providers(p11=p1, p12=p2) as context_container:
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assert container is context_container
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assert container.p11.last_overriding is p1
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assert container.p12.last_overriding is p2
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assert container.p11.last_overriding is None
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assert container.p12.last_overriding is None
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def test_override_providers_with_unknown_provider():
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container = Container()
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with raises(AttributeError):
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container.override_providers(unknown=providers.Provider())
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def test_reset_last_overriding():
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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container.reset_last_overriding()
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assert container.overridden == (overriding_container1,)
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assert container.p11.overridden, (overriding_container1.p11,)
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def test_reset_last_overriding_when_not_overridden():
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container = Container()
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with raises(errors.Error):
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container.reset_last_overriding()
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def test_reset_override():
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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container.reset_override()
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assert container.overridden == tuple()
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assert container.p11.overridden == tuple()
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def test_init_and_shutdown_resources_ordering():
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"""Test init and shutdown resources.
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Methods .init_resources() and .shutdown_resources() should respect resources dependencies.
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Initialization should first initialize resources without dependencies and then provide
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these resources to other resources. Resources shutdown should follow the same rule: first
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shutdown resources without initialized dependencies and then continue correspondingly
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until all resources are shutdown.
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"""
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initialized_resources = []
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shutdown_resources = []
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def _resource(name, **_):
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initialized_resources.append(name)
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yield name
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shutdown_resources.append(name)
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class Container(containers.DeclarativeContainer):
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resource1 = providers.Resource(
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_resource,
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name="r1",
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)
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resource2 = providers.Resource(
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_resource,
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name="r2",
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r1=resource1,
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)
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resource3 = providers.Resource(
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_resource,
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name="r3",
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r2=resource2,
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)
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container = Container()
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container.init_resources()
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assert initialized_resources == ["r1", "r2", "r3"]
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assert shutdown_resources == []
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container.shutdown_resources()
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assert initialized_resources == ["r1", "r2", "r3"]
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assert shutdown_resources == ["r3", "r2", "r1"]
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container.init_resources()
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assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
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assert shutdown_resources == ["r3", "r2", "r1"]
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container.shutdown_resources()
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assert initialized_resources == ["r1", "r2", "r3", "r1", "r2", "r3"]
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assert shutdown_resources == ["r3", "r2", "r1", "r3", "r2", "r1"]
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def test_shutdown_resources_circular_dependencies_breaker():
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def _resource(name, **_):
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yield name
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class Container(containers.DeclarativeContainer):
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resource1 = providers.Resource(
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_resource,
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name="r1",
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)
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resource2 = providers.Resource(
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_resource,
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name="r2",
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r1=resource1,
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)
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resource3 = providers.Resource(
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_resource,
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name="r3",
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r2=resource2,
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)
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container = Container()
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container.init_resources()
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# Create circular dependency after initialization (r3 -> r2 -> r1 -> r3 -> ...)
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container.resource1.add_kwargs(r3=container.resource3)
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with raises(RuntimeError, match="Unable to resolve resources shutdown order"):
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container.shutdown_resources()
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def test_init_shutdown_nested_resources():
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def _init1():
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_init1.init_counter += 1
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yield
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_init1.shutdown_counter += 1
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_init1.init_counter = 0
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_init1.shutdown_counter = 0
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def _init2():
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_init2.init_counter += 1
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yield
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_init2.shutdown_counter += 1
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_init2.init_counter = 0
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_init2.shutdown_counter = 0
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class Container(containers.DeclarativeContainer):
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service = providers.Factory(
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dict,
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resource1=providers.Resource(_init1),
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resource2=providers.Resource(_init2),
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)
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container = Container()
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assert _init1.init_counter == 0
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assert _init1.shutdown_counter == 0
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assert _init2.init_counter == 0
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assert _init2.shutdown_counter == 0
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container.init_resources()
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assert _init1.init_counter == 1
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assert _init1.shutdown_counter == 0
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assert _init2.init_counter == 1
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assert _init2.shutdown_counter == 0
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container.shutdown_resources()
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assert _init1.init_counter == 1
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assert _init1.shutdown_counter == 1
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assert _init2.init_counter == 1
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assert _init2.shutdown_counter == 1
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container.init_resources()
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container.shutdown_resources()
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assert _init1.init_counter == 2
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assert _init1.shutdown_counter == 2
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assert _init2.init_counter == 2
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assert _init2.shutdown_counter == 2
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def test_reset_singletons():
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class SubSubContainer(containers.DeclarativeContainer):
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singleton = providers.Singleton(object)
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class SubContainer(containers.DeclarativeContainer):
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singleton = providers.Singleton(object)
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sub_sub_container = providers.Container(SubSubContainer)
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class Container(containers.DeclarativeContainer):
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singleton = providers.Singleton(object)
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sub_container = providers.Container(SubContainer)
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container = Container()
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obj11 = container.singleton()
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obj12 = container.sub_container().singleton()
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obj13 = container.sub_container().sub_sub_container().singleton()
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obj21 = container.singleton()
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obj22 = container.sub_container().singleton()
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obj23 = container.sub_container().sub_sub_container().singleton()
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assert obj11 is obj21
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assert obj12 is obj22
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assert obj13 is obj23
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container.reset_singletons()
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obj31 = container.singleton()
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obj32 = container.sub_container().singleton()
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obj33 = container.sub_container().sub_sub_container().singleton()
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obj41 = container.singleton()
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obj42 = container.sub_container().singleton()
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obj43 = container.sub_container().sub_sub_container().singleton()
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assert obj11 is not obj31
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assert obj12 is not obj32
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assert obj13 is not obj33
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assert obj21 is not obj31
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assert obj22 is not obj32
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assert obj23 is not obj33
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assert obj31 is obj41
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assert obj32 is obj42
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assert obj33 is obj43
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def test_reset_singletons_context_manager():
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class Item:
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def __init__(self, dependency):
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self.dependency = dependency
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class Container(containers.DeclarativeContainer):
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dependent = providers.Singleton(object)
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singleton = providers.Singleton(Item, dependency=dependent)
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container = Container()
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instance1 = container.singleton()
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with container.reset_singletons():
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instance2 = container.singleton()
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instance3 = container.singleton()
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assert len({instance1, instance2, instance3}) == 3
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assert len({instance1.dependency, instance2.dependency, instance3.dependency}) == 3
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def test_reset_singletons_context_manager_as_attribute():
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container = containers.DeclarativeContainer()
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with container.reset_singletons() as alias:
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pass
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assert container is alias
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def test_check_dependencies():
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class SubContainer(containers.DeclarativeContainer):
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dependency = providers.Dependency()
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class Container(containers.DeclarativeContainer):
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dependency = providers.Dependency()
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dependencies_container = providers.DependenciesContainer()
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provider = providers.List(dependencies_container.dependency)
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sub_container = providers.Container(SubContainer)
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container = Container()
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with raises(errors.Error) as exception_info:
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container.check_dependencies()
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assert "Container \"Container\" has undefined dependencies:" in str(exception_info.value)
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assert "\"Container.dependency\"" in str(exception_info.value)
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assert "\"Container.dependencies_container.dependency\"" in str(exception_info.value)
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assert "\"Container.sub_container.dependency\"" in str(exception_info.value)
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def test_check_dependencies_all_defined():
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class Container(containers.DeclarativeContainer):
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dependency = providers.Dependency()
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container = Container(dependency="provided")
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result = container.check_dependencies()
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assert result is None
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def test_assign_parent():
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parent = providers.DependenciesContainer()
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container = Container()
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container.assign_parent(parent)
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assert container.parent is parent
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def test_parent_name_declarative_parent():
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container = Container()
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assert container.parent_name == "Container"
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def test_parent_name():
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container = Container()
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assert container.parent_name == "Container"
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def test_parent_name_with_deep_parenting():
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class Container2(containers.DeclarativeContainer):
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name = providers.Container(Container)
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class Container1(containers.DeclarativeContainer):
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container = providers.Container(Container2)
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container = Container1()
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assert container.container().name.parent_name == "Container1.container.name"
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def test_parent_name_is_none():
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container = containers.DynamicContainer()
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assert container.parent_name is None
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def test_parent_deepcopy():
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class ParentContainer(containers.DeclarativeContainer):
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child = providers.Container(Container)
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container = ParentContainer()
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copied = providers.deepcopy(container)
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assert container.child.parent is container
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assert copied.child.parent is copied
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assert container is not copied
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assert container.child is not copied.child
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assert container.child.parent is not copied.child.parent
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def test_resolve_provider_name():
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container = Container()
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assert container.resolve_provider_name(container.p11) == "p11"
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def test_resolve_provider_name_no_provider():
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container = Container()
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with raises(errors.Error):
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container.resolve_provider_name(providers.Provider())
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