mirror of
https://github.com/ets-labs/python-dependency-injector.git
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115 lines
3.0 KiB
Python
115 lines
3.0 KiB
Python
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"""Objects decorators unittests."""
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import unittest2 as unittest
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from objects.decorators import override
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from objects.decorators import inject
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from objects.catalog import AbstractCatalog
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from objects.providers import NewInstance
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from objects.providers import Object
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from objects.providers import Value
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from objects.injections import KwArg
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from objects.errors import Error
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class OverrideTests(unittest.TestCase):
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"""Override decorator test cases."""
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class Catalog(AbstractCatalog):
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"""Test catalog."""
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obj = Object(object())
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another_obj = Object(object())
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def test_overriding(self):
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"""Test catalog overriding with another catalog."""
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@override(self.Catalog)
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class OverridingCatalog(self.Catalog):
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"""Overriding catalog."""
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obj = Value(1)
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another_obj = Value(2)
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self.assertEqual(self.Catalog.obj(), 1)
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self.assertEqual(self.Catalog.another_obj(), 2)
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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 = NewInstance(object)
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provider2 = NewInstance(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 = NewInstance(object)
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provider2 = NewInstance(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 = NewInstance(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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