mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-11-22 09:36:48 +03:00
297 lines
10 KiB
Python
297 lines
10 KiB
Python
"""Dependency injector callable providers unit tests."""
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import sys
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import unittest
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from dependency_injector import (
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providers,
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errors,
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)
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def _example(arg1, arg2, arg3, arg4):
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return arg1, arg2, arg3, arg4
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class CallableTests(unittest.TestCase):
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def test_init_with_callable(self):
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self.assertTrue(providers.Callable(_example))
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def test_init_with_not_callable(self):
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self.assertRaises(errors.Error, providers.Callable, 123)
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def test_init_optional_provides(self):
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provider = providers.Callable()
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provider.set_provides(object)
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self.assertIs(provider.provides, object)
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self.assertIsInstance(provider(), object)
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def test_set_provides_returns_self(self):
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provider = providers.Callable()
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self.assertIs(provider.set_provides(object), provider)
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def test_provided_instance_provider(self):
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provider = providers.Callable(_example)
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self.assertIsInstance(provider.provided, providers.ProvidedInstance)
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def test_call(self):
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provider = providers.Callable(lambda: True)
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self.assertTrue(provider())
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def test_call_with_positional_args(self):
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provider = providers.Callable(_example,
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1, 2, 3, 4)
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self.assertTupleEqual(provider(), (1, 2, 3, 4))
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def test_call_with_keyword_args(self):
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provider = providers.Callable(_example,
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arg1=1, arg2=2, arg3=3, arg4=4)
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self.assertTupleEqual(provider(), (1, 2, 3, 4))
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def test_call_with_positional_and_keyword_args(self):
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provider = providers.Callable(_example,
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1, 2,
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arg3=3, arg4=4)
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self.assertTupleEqual(provider(), (1, 2, 3, 4))
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def test_call_with_context_args(self):
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provider = providers.Callable(_example, 1, 2)
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self.assertTupleEqual(provider(3, 4), (1, 2, 3, 4))
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def test_call_with_context_kwargs(self):
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provider = providers.Callable(_example, arg1=1)
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self.assertTupleEqual(provider(arg2=2, arg3=3, arg4=4), (1, 2, 3, 4))
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def test_call_with_context_args_and_kwargs(self):
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provider = providers.Callable(_example, 1)
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self.assertTupleEqual(provider(2, arg3=3, arg4=4), (1, 2, 3, 4))
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def test_fluent_interface(self):
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provider = providers.Singleton(_example) \
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.add_args(1, 2) \
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.add_kwargs(arg3=3, arg4=4)
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self.assertTupleEqual(provider(), (1, 2, 3, 4))
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def test_set_args(self):
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provider = providers.Callable(_example) \
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.add_args(1, 2) \
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.set_args(3, 4)
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self.assertEqual(provider.args, (3, 4))
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def test_set_kwargs(self):
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provider = providers.Callable(_example) \
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.add_kwargs(init_arg3=3, init_arg4=4) \
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.set_kwargs(init_arg3=4, init_arg4=5)
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self.assertEqual(provider.kwargs, dict(init_arg3=4, init_arg4=5))
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def test_clear_args(self):
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provider = providers.Callable(_example) \
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.add_args(1, 2) \
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.clear_args()
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self.assertEqual(provider.args, tuple())
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def test_clear_kwargs(self):
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provider = providers.Callable(_example) \
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.add_kwargs(init_arg3=3, init_arg4=4) \
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.clear_kwargs()
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self.assertEqual(provider.kwargs, dict())
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def test_call_overridden(self):
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provider = providers.Callable(_example)
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provider.override(providers.Object((4, 3, 2, 1)))
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provider.override(providers.Object((1, 2, 3, 4)))
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self.assertTupleEqual(provider(), (1, 2, 3, 4))
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def test_deepcopy(self):
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provider = providers.Callable(_example)
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provider_copy = providers.deepcopy(provider)
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self.assertIsNot(provider, provider_copy)
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self.assertIs(provider.provides, provider_copy.provides)
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self.assertIsInstance(provider, providers.Callable)
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def test_deepcopy_from_memo(self):
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provider = providers.Callable(_example)
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provider_copy_memo = providers.Callable(_example)
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provider_copy = providers.deepcopy(
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provider, memo={id(provider): provider_copy_memo})
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self.assertIs(provider_copy, provider_copy_memo)
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def test_deepcopy_args(self):
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provider = providers.Callable(_example)
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dependent_provider1 = providers.Callable(list)
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dependent_provider2 = providers.Callable(dict)
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provider.add_args(dependent_provider1, dependent_provider2)
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provider_copy = providers.deepcopy(provider)
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dependent_provider_copy1 = provider_copy.args[0]
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dependent_provider_copy2 = provider_copy.args[1]
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self.assertNotEqual(provider.args, provider_copy.args)
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self.assertIs(dependent_provider1.provides,
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dependent_provider_copy1.provides)
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self.assertIsNot(dependent_provider1, dependent_provider_copy1)
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self.assertIs(dependent_provider2.provides,
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dependent_provider_copy2.provides)
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self.assertIsNot(dependent_provider2, dependent_provider_copy2)
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def test_deepcopy_kwargs(self):
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provider = providers.Callable(_example)
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dependent_provider1 = providers.Callable(list)
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dependent_provider2 = providers.Callable(dict)
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provider.add_kwargs(a1=dependent_provider1, a2=dependent_provider2)
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provider_copy = providers.deepcopy(provider)
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dependent_provider_copy1 = provider_copy.kwargs["a1"]
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dependent_provider_copy2 = provider_copy.kwargs["a2"]
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self.assertNotEqual(provider.kwargs, provider_copy.kwargs)
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self.assertIs(dependent_provider1.provides,
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dependent_provider_copy1.provides)
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self.assertIsNot(dependent_provider1, dependent_provider_copy1)
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self.assertIs(dependent_provider2.provides,
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dependent_provider_copy2.provides)
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self.assertIsNot(dependent_provider2, dependent_provider_copy2)
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def test_deepcopy_overridden(self):
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provider = providers.Callable(_example)
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object_provider = providers.Object(object())
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provider.override(object_provider)
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provider_copy = providers.deepcopy(provider)
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object_provider_copy = provider_copy.overridden[0]
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self.assertIsNot(provider, provider_copy)
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self.assertIs(provider.provides, provider_copy.provides)
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self.assertIsInstance(provider, providers.Callable)
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self.assertIsNot(object_provider, object_provider_copy)
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self.assertIsInstance(object_provider_copy, providers.Object)
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def test_deepcopy_with_sys_streams(self):
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provider = providers.Callable(_example)
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provider.add_args(sys.stdin)
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provider.add_kwargs(a2=sys.stdout)
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provider_copy = providers.deepcopy(provider)
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self.assertIsNot(provider, provider_copy)
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self.assertIsInstance(provider_copy, providers.Callable)
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self.assertIs(provider.args[0], sys.stdin)
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self.assertIs(provider.kwargs["a2"], sys.stdout)
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def test_repr(self):
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provider = providers.Callable(_example)
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self.assertEqual(repr(provider),
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"<dependency_injector.providers."
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"Callable({0}) at {1}>".format(
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repr(_example),
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hex(id(provider))))
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class DelegatedCallableTests(unittest.TestCase):
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def test_inheritance(self):
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self.assertIsInstance(providers.DelegatedCallable(_example),
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providers.Callable)
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def test_is_provider(self):
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self.assertTrue(
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providers.is_provider(providers.DelegatedCallable(_example)))
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def test_is_delegated_provider(self):
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provider = providers.DelegatedCallable(_example)
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self.assertTrue(providers.is_delegated(provider))
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def test_repr(self):
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provider = providers.DelegatedCallable(_example)
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self.assertEqual(repr(provider),
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"<dependency_injector.providers."
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"DelegatedCallable({0}) at {1}>".format(
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repr(_example),
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hex(id(provider))))
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class AbstractCallableTests(unittest.TestCase):
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def test_inheritance(self):
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self.assertIsInstance(providers.AbstractCallable(_example),
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providers.Callable)
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def test_call_overridden_by_callable(self):
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def _abstract_example():
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pass
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provider = providers.AbstractCallable(_abstract_example)
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provider.override(providers.Callable(_example))
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self.assertTrue(provider(1, 2, 3, 4), (1, 2, 3, 4))
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def test_call_overridden_by_delegated_callable(self):
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def _abstract_example():
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pass
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provider = providers.AbstractCallable(_abstract_example)
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provider.override(providers.DelegatedCallable(_example))
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self.assertTrue(provider(1, 2, 3, 4), (1, 2, 3, 4))
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def test_call_not_overridden(self):
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provider = providers.AbstractCallable(_example)
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with self.assertRaises(errors.Error):
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provider(1, 2, 3, 4)
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def test_override_by_not_callable(self):
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provider = providers.AbstractCallable(_example)
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with self.assertRaises(errors.Error):
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provider.override(providers.Factory(object))
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def test_provide_not_implemented(self):
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provider = providers.AbstractCallable(_example)
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with self.assertRaises(NotImplementedError):
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provider._provide((1, 2, 3, 4), dict())
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def test_repr(self):
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provider = providers.AbstractCallable(_example)
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self.assertEqual(repr(provider),
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"<dependency_injector.providers."
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"AbstractCallable({0}) at {1}>".format(
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repr(_example),
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hex(id(provider))))
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class CallableDelegateTests(unittest.TestCase):
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def setUp(self):
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self.delegated = providers.Callable(_example)
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self.delegate = providers.CallableDelegate(self.delegated)
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def test_is_delegate(self):
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self.assertIsInstance(self.delegate, providers.Delegate)
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def test_init_with_not_callable(self):
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self.assertRaises(errors.Error,
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providers.CallableDelegate,
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providers.Object(object()))
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