mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-11-26 11:33:58 +03:00
142 lines
4.1 KiB
Python
142 lines
4.1 KiB
Python
"""Objects injections unittests."""
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import unittest2 as unittest
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from objects.injections import Injection
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from objects.injections import KwArg
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from objects.injections import Attribute
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from objects.injections import Method
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from objects.injections import inject
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from objects.providers import Factory
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from objects.errors import Error
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class InjectionTests(unittest.TestCase):
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"""Injection test cases."""
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def test_init(self):
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"""Test Injection creation and initialization."""
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injection = Injection('some_arg_name', 'some_value')
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self.assertEqual(injection.name, 'some_arg_name')
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self.assertEqual(injection.injectable, 'some_value')
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def test_value_with_scalar_injectable(self):
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"""Test Injection value property with scalar value."""
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injection = Injection('some_arg_name', 'some_value')
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self.assertEqual(injection.value, 'some_value')
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def test_value_with_provider_injectable(self):
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"""Test Injection value property with provider."""
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injection = Injection('some_arg_name', Factory(object))
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self.assertIsInstance(injection.value, object)
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class KwArgTests(unittest.TestCase):
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"""Keyword arg injection test cases."""
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def test_init(self):
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"""Test KwArg creation and initialization."""
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injection = KwArg('some_arg_name', 'some_value')
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self.assertEqual(injection.name, 'some_arg_name')
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self.assertEqual(injection.injectable, 'some_value')
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class AttributeTests(unittest.TestCase):
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"""Attribute injection test cases."""
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def test_init(self):
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"""Test Attribute creation and initialization."""
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injection = Attribute('some_arg_name', 'some_value')
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self.assertEqual(injection.name, 'some_arg_name')
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self.assertEqual(injection.injectable, 'some_value')
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class MethodTests(unittest.TestCase):
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"""Method injection test cases."""
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def test_init(self):
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"""Test Method creation and initialization."""
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injection = Method('some_arg_name', 'some_value')
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self.assertEqual(injection.name, 'some_arg_name')
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self.assertEqual(injection.injectable, 'some_value')
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class InjectTests(unittest.TestCase):
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"""Inject decorator test cases."""
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def test_decorated(self):
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"""Test `inject()` decorated callback."""
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provider1 = Factory(object)
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provider2 = Factory(list)
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@inject(KwArg('a', provider1))
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@inject(KwArg('b', provider2))
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def test(a, b):
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return a, b
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a1, b1 = test()
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a2, b2 = test()
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self.assertIsInstance(a1, object)
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self.assertIsInstance(a2, object)
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self.assertIsNot(a1, a2)
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self.assertIsInstance(b1, list)
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self.assertIsInstance(b2, list)
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self.assertIsNot(b1, b2)
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def test_decorated_kwargs_priority(self):
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"""Test `inject()` decorated callback kwargs priority."""
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provider1 = Factory(object)
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provider2 = Factory(list)
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object_a = object()
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@inject(KwArg('a', provider1))
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@inject(KwArg('b', provider2))
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def test(a, b):
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return a, b
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a1, b1 = test(a=object_a)
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a2, b2 = test(a=object_a)
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self.assertIsInstance(a1, object)
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self.assertIsInstance(a2, object)
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self.assertIs(a1, object_a)
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self.assertIs(a2, object_a)
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self.assertIsInstance(b1, list)
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self.assertIsInstance(b2, list)
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self.assertIsNot(b1, b2)
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def test_decorated_with_args(self):
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"""Test `inject()` decorated callback with args."""
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provider = Factory(list)
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object_a = object()
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@inject(KwArg('b', provider))
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def test(a, b):
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return a, b
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a1, b1 = test(object_a)
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a2, b2 = test(object_a)
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self.assertIsInstance(a1, object)
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self.assertIsInstance(a2, object)
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self.assertIs(a1, object_a)
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self.assertIs(a2, object_a)
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self.assertIsInstance(b1, list)
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self.assertIsInstance(b2, list)
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self.assertIsNot(b1, b2)
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def test_decorate_with_not_injection(self):
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"""Test `inject()` decorator with not an injection instance."""
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self.assertRaises(Error, inject, object)
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