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_from_memo():
provider = providers.Self()
provider_copy_memo = providers.Provider()
provider_copy = providers.deepcopy(provider,
memo={id(provider): provider_copy_memo})
assert provider_copy is provider_copy_memo
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_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_traversal_provider_and_overriding():
provider1 = providers.Provider()
provider2 = providers.Provider()
provider3 = providers.Provider()
provider3.override(provider2)
provider = providers.Delegate(provider1)
provider.override(provider3)
all_providers = list(provider.traverse())
assert len(all_providers) == 3
assert provider1 in all_providers
assert provider2 in all_providers
assert provider3 in all_providers
def test_traverse_types_filtering():
provider1 = providers.Resource(dict)
provider2 = providers.Resource(dict)
provider3 = providers.Provider()
provider = providers.Provider()
provider.override(provider1)
provider.override(provider2)
provider.override(provider3)
all_providers = list(
providers.traverse(provider, types=[providers.Resource]))
assert len(all_providers) == 2
assert provider1 in all_providers
assert provider2 in all_providers
def test_traversal_default():
another_provider = providers.Provider()
provider = providers.Dependency(default=another_provider)
all_providers = list(provider.traverse())
assert len(all_providers) == 1
assert another_provider in all_providers
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_traversal_provider():
another_provider = providers.Provider()
provider = providers.Delegate(another_provider)
all_providers = list(provider.traverse())
assert len(all_providers) == 1
assert another_provider in all_providers
def test_reset_last_overriding(provider):
overriding_provider1 = providers.Provider()
overriding_provider2 = providers.Provider()
provider.override(overriding_provider1)
provider.override(overriding_provider2)
assert provider.overridden[-1] is overriding_provider2
assert provider.last_overriding is overriding_provider2
provider.reset_last_overriding()
assert provider.overridden[-1] is overriding_provider1
assert provider.last_overriding is overriding_provider1
provider.reset_last_overriding()
assert provider.overridden == tuple()
assert not provider.overridden
assert provider.last_overriding is None
def test_traverse_cycled_graph():
provider1 = providers.Provider()
provider2 = providers.Provider()
provider2.override(provider1)
provider3 = providers.Provider()
provider3.override(provider2)
provider1.override(
provider3) # Cycle: provider3 -> provider2 -> provider1 -> provider3
all_providers = list(providers.traverse(provider1))
assert len(all_providers) == 3
assert provider1 in all_providers
assert provider2 in all_providers
assert provider3 in all_providers
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_traversal_overriding_nested(self):
provider1 = providers.Provider()
provider2 = providers.Provider()
provider2.override(provider1)
provider3 = providers.Provider()
provider3.override(provider2)
provider = providers.Provider()
provider.override(provider3)
all_providers = list(provider.traverse())
self.assertEqual(len(all_providers), 3)
self.assertIn(provider1, all_providers)
self.assertIn(provider2, all_providers)
self.assertIn(provider3, all_providers)
def test_item_getter(self):
provides = providers.Object({'foo': 'bar'})
provider = providers.ItemGetter()
provider.set_provides(provides)
provider.set_name('foo')
self.assertIs(provider.provides, provides)
self.assertEqual(provider.name, 'foo')
self.assertIs(provider.set_provides(providers.Provider()), provider)
self.assertIs(provider.set_name('foo'), provider)
def test_item_getter():
provides = providers.Object({"foo": "bar"})
provider = providers.ItemGetter()
provider.set_provides(provides)
provider.set_name("foo")
assert provider.provides is provides
assert provider.name == "foo"
assert provider.set_provides(providers.Provider()) is provider
assert provider.set_name("foo") is provider
def test_attribute_getter(self):
provides = providers.Object(object())
provider = providers.AttributeGetter()
provider.set_provides(provides)
provider.set_name('__dict__')
self.assertIs(provider.provides, provides)
self.assertEqual(provider.name, '__dict__')
self.assertIs(provider.set_provides(providers.Provider()), provider)
self.assertIs(provider.set_name('__dict__'), provider)
def test_attribute_getter():
provides = providers.Object(object())
provider = providers.AttributeGetter()
provider.set_provides(provides)
provider.set_name("__dict__")
assert provider.provides is provides
assert provider.name == "__dict__"
assert provider.set_provides(providers.Provider()) is provider
assert provider.set_name("__dict__") is provider
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_traverse():
provider1 = providers.Provider()
provided = provider1.provided
provider = provided["item"]
all_providers = list(provider.traverse())
assert len(all_providers) == 2
assert provider1 in all_providers
assert provided in all_providers
def test_traverse(self):
provider1 = providers.Provider()
provided = provider1.provided
provider = provided['item']
all_providers = list(provider.traverse())
self.assertEqual(len(all_providers), 2)
self.assertIn(provider1, all_providers)
self.assertIn(provided, all_providers)
def test_traversal_overriding(self):
provider1 = providers.Provider()
provider2 = providers.Provider()
provider3 = providers.DependenciesContainer(
provider1=provider1,
provider2=provider2,
)
provider = providers.DependenciesContainer()
provider.override(provider3)
all_providers = list(provider.traverse())
self.assertEqual(len(all_providers), 5)
self.assertIn(provider1, all_providers)
self.assertIn(provider2, all_providers)
self.assertIn(provider3, all_providers)
self.assertIn(provider.provider1, all_providers)
self.assertIn(provider.provider2, all_providers)
def test_traversal_overriding():
provider1 = providers.Provider()
provider2 = providers.Provider()
provider3 = providers.DependenciesContainer(
provider1=provider1,
provider2=provider2,
)
provider = providers.DependenciesContainer()
provider.override(provider3)
all_providers = list(provider.traverse())
assert len(all_providers) == 5
assert provider1 in all_providers
assert provider2 in all_providers
assert provider3 in all_providers
assert provider.provider1 in all_providers
assert provider.provider2 in all_providers
def test_reset_override(provider):
overriding_provider = providers.Provider()
provider.override(overriding_provider)
assert provider.overridden
assert provider.overridden == (overriding_provider,)
provider.reset_override()
assert provider.overridden == tuple()
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_traverse():
provider1 = providers.Provider()
provided = provider1.provided
method = provided.method
provider = method.call()
all_providers = list(provider.traverse())
assert len(all_providers) == 3
assert provider1 in all_providers
assert provided in all_providers
assert method in all_providers
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_traverse(self):
provider1 = providers.Provider()
provided = provider1.provided
method = provided.method
provider = method.call()
all_providers = list(provider.traverse())
self.assertEqual(len(all_providers), 3)
self.assertIn(provider1, all_providers)
self.assertIn(provided, all_providers)
self.assertIn(method, all_providers)
def test_async_mode_enabling_on_overriding(self):
dependency = object()
async def _get_dependency_async():
return dependency
provider = providers.Provider()
provider.override(providers.Callable(_get_dependency_async))
self.assertTrue(provider.is_async_mode_undefined())
self._run(provider())
self.assertTrue(provider.is_async_mode_enabled())
def test_deepcopy_overridden(provider):
overriding_provider = providers.Provider()
provider.override(overriding_provider)
provider_copy = providers.deepcopy(provider)
overriding_provider_copy = provider_copy.overridden[0]
assert provider is not provider_copy
assert isinstance(provider, providers.Dependency)
assert overriding_provider is not overriding_provider_copy
assert isinstance(overriding_provider_copy, providers.Provider)
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,
},
)