mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2025-10-12 06:46:57 +03:00
281 lines
9.3 KiB
Python
281 lines
9.3 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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from pytest import raises
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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_is_provider(self):
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assert providers.is_provider(providers.Callable(_example)) is True
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def test_init_with_not_callable(self):
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with raises(errors.Error):
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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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assert provider.provides is object
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assert isinstance(provider(), object)
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def test_set_provides_returns_self(self):
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provider = providers.Callable()
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assert provider.set_provides(object) is provider
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def test_provided_instance_provider(self):
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provider = providers.Callable(_example)
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assert isinstance(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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assert provider() is True
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def test_call_with_positional_args(self):
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provider = providers.Callable(_example, 1, 2, 3, 4)
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assert provider() == (1, 2, 3, 4)
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def test_call_with_keyword_args(self):
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provider = providers.Callable(_example, arg1=1, arg2=2, arg3=3, arg4=4)
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assert 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, 1, 2, arg3=3, arg4=4)
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assert 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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assert 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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assert 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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assert 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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assert 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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assert 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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assert 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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assert 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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assert 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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assert 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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assert provider is not provider_copy
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assert provider.provides is provider_copy.provides
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assert isinstance(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(provider, memo={id(provider): provider_copy_memo})
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assert provider_copy is 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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assert provider.args != provider_copy.args
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assert dependent_provider1.provides is dependent_provider_copy1.provides
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assert dependent_provider1 is not dependent_provider_copy1
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assert dependent_provider2.provides is dependent_provider_copy2.provides
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assert dependent_provider2 is not 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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assert provider.kwargs != provider_copy.kwargs
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assert dependent_provider1.provides is dependent_provider_copy1.provides
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assert dependent_provider1 is not dependent_provider_copy1
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assert dependent_provider2.provides is dependent_provider_copy2.provides
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assert dependent_provider2 is not 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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assert provider is not provider_copy
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assert provider.provides is provider_copy.provides
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assert isinstance(provider, providers.Callable)
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assert object_provider is not object_provider_copy
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assert isinstance(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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assert provider is not provider_copy
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assert isinstance(provider_copy, providers.Callable)
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assert provider.args[0] is sys.stdin
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assert provider.kwargs["a2"] is sys.stdout
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def test_repr(self):
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provider = providers.Callable(_example)
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assert repr(provider) == (
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"<dependency_injector.providers."
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"Callable({0}) at {1}>".format(repr(_example), hex(id(provider)))
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)
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class DelegatedCallableTests(unittest.TestCase):
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def test_inheritance(self):
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assert isinstance(providers.DelegatedCallable(_example),
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providers.Callable)
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def test_is_provider(self):
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assert providers.is_provider(providers.DelegatedCallable(_example)) is True
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def test_is_delegated_provider(self):
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provider = providers.DelegatedCallable(_example)
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assert providers.is_delegated(provider) is True
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def test_repr(self):
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provider = providers.DelegatedCallable(_example)
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assert repr(provider) == (
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"<dependency_injector.providers."
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"DelegatedCallable({0}) at {1}>".format(repr(_example), hex(id(provider)))
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)
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class AbstractCallableTests(unittest.TestCase):
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def test_inheritance(self):
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assert isinstance(providers.AbstractCallable(_example), 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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assert 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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assert 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 raises(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 raises(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 raises(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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assert repr(provider) == (
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"<dependency_injector.providers."
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"AbstractCallable({0}) at {1}>".format(repr(_example), hex(id(provider)))
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)
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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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assert isinstance(self.delegate, providers.Delegate)
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def test_init_with_not_callable(self):
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with raises(errors.Error):
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providers.CallableDelegate(providers.Object(object()))
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