mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-12-01 22:14:04 +03:00
201 lines
7.1 KiB
Python
201 lines
7.1 KiB
Python
"""Dependency injector callable providers unit tests."""
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import unittest2 as 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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class CallableTests(unittest.TestCase):
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def example(self, arg1, arg2, arg3, arg4):
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return arg1, arg2, arg3, arg4
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def test_init_with_callable(self):
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self.assertTrue(providers.Callable(self.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_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(self.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(self.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(self.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(self.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(self.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(self.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(self.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(self.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, tuple([3, 4]))
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def test_set_kwargs(self):
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provider = providers.Callable(self.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(self.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(self.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(self.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(self.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(self.example)
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provider_copy_memo = providers.Callable(self.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(self.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(self.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(self.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_repr(self):
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provider = providers.Callable(self.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(self.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(len),
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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(len)))
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def test_is_delegated_provider(self):
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provider = providers.DelegatedCallable(len)
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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(len)
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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(len),
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hex(id(provider))))
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