mirror of
https://github.com/ets-labs/python-dependency-injector.git
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126 lines
3.3 KiB
Python
126 lines
3.3 KiB
Python
"""DependencyContainer provider tests."""
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from dependency_injector import containers, providers, errors
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from pytest import fixture, raises
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class Container(containers.DeclarativeContainer):
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dependency = providers.Provider()
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@fixture
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def provider():
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return providers.DependenciesContainer()
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@fixture
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def container():
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return Container()
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def test_getattr(provider):
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has_dependency = hasattr(provider, "dependency")
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dependency = provider.dependency
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assert isinstance(dependency, providers.Dependency)
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assert dependency is provider.dependency
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assert has_dependency is True
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assert dependency.last_overriding is None
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def test_getattr_with_container(provider, container):
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provider.override(container)
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dependency = provider.dependency
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assert dependency.overridden == (container.dependency,)
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assert dependency.last_overriding is container.dependency
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def test_providers(provider):
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dependency1 = provider.dependency1
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dependency2 = provider.dependency2
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assert provider.providers == {"dependency1": dependency1, "dependency2": dependency2}
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def test_override(provider, container):
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dependency = provider.dependency
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provider.override(container)
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assert dependency.overridden == (container.dependency,)
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assert dependency.last_overriding is container.dependency
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def test_reset_last_overriding(provider, container):
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dependency = provider.dependency
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provider.override(container)
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provider.reset_last_overriding()
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assert dependency.last_overriding is None
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assert dependency.last_overriding is None
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def test_reset_override(provider, container):
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dependency = provider.dependency
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provider.override(container)
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provider.reset_override()
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assert dependency.overridden == tuple()
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assert not dependency.overridden
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def test_assign_parent(provider):
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parent = providers.DependenciesContainer()
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provider.assign_parent(parent)
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assert provider.parent is parent
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def test_parent_name(provider):
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container = containers.DynamicContainer()
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container.name = provider
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assert provider.parent_name == "name"
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def test_parent_name_with_deep_parenting(provider):
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container = providers.DependenciesContainer(name=provider)
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_ = providers.DependenciesContainer(container=container)
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assert provider.parent_name == "container.name"
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def test_parent_name_is_none(provider):
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assert provider.parent_name is None
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def test_parent_deepcopy(provider, container):
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container.name = provider
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copied = providers.deepcopy(container)
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assert container.name.parent is container
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assert copied.name.parent is copied
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assert container is not copied
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assert container.name is not copied.name
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assert container.name.parent is not copied.name.parent
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def test_parent_set_on__getattr__(provider):
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assert isinstance(provider.name, providers.Dependency)
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assert provider.name.parent is provider
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def test_parent_set_on__init__():
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provider = providers.Dependency()
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container = providers.DependenciesContainer(name=provider)
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assert container.name is provider
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assert container.name.parent is container
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def test_resolve_provider_name(provider):
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assert provider.resolve_provider_name(provider.name) == "name"
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def test_resolve_provider_name_no_provider(provider):
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with raises(errors.Error):
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provider.resolve_provider_name(providers.Provider())
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