mirror of
https://github.com/ets-labs/python-dependency-injector.git
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92 lines
3.5 KiB
Python
92 lines
3.5 KiB
Python
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"""Dependency injector static providers unittests."""
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import unittest2 as unittest
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from dependency_injector import providers
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from dependency_injector import utils
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class StaticProvidersTests(unittest.TestCase):
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"""Static providers test cases."""
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def test_is_provider(self):
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"""Test `is_provider` check."""
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self.assertTrue(utils.is_provider(providers.Class(object)))
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self.assertTrue(utils.is_provider(providers.Object(object())))
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self.assertTrue(utils.is_provider(providers.Function(map)))
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self.assertTrue(utils.is_provider(providers.Value(123)))
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def test_call_class_provider(self):
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"""Test Class provider call."""
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self.assertIs(providers.Class(dict)(), dict)
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def test_call_object_provider(self):
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"""Test Object provider call."""
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obj = object()
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self.assertIs(providers.Object(obj)(), obj)
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def test_call_function_provider(self):
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"""Test Function provider call."""
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self.assertIs(providers.Function(map)(), map)
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def test_call_value_provider(self):
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"""Test Value provider call."""
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self.assertEqual(providers.Value(123)(), 123)
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def test_call_overridden_class_provider(self):
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"""Test overridden Class provider call."""
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cls_provider = providers.Class(dict)
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cls_provider.override(providers.Object(list))
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self.assertIs(cls_provider(), list)
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def test_call_overridden_object_provider(self):
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"""Test overridden Object provider call."""
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obj1 = object()
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obj2 = object()
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obj_provider = providers.Object(obj1)
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obj_provider.override(providers.Object(obj2))
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self.assertIs(obj_provider(), obj2)
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def test_call_overridden_function_provider(self):
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"""Test overridden Function provider call."""
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function_provider = providers.Function(len)
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function_provider.override(providers.Function(sum))
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self.assertIs(function_provider(), sum)
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def test_call_overridden_value_provider(self):
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"""Test overridden Value provider call."""
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value_provider = providers.Value(123)
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value_provider.override(providers.Value(321))
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self.assertEqual(value_provider(), 321)
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def test_repr(self):
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"""Test representation of provider."""
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class_provider = providers.Class(object)
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self.assertEqual(repr(class_provider),
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'<dependency_injector.providers.static.'
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'Class({0}) at {1}>'.format(
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repr(object),
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hex(id(class_provider))))
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some_object = object()
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object_provider = providers.Object(some_object)
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self.assertEqual(repr(object_provider),
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'<dependency_injector.providers.static.'
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'Object({0}) at {1}>'.format(
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repr(some_object),
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hex(id(object_provider))))
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function_provider = providers.Function(map)
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self.assertEqual(repr(function_provider),
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'<dependency_injector.providers.static.'
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'Function({0}) at {1}>'.format(
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repr(map),
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hex(id(function_provider))))
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value_provider = providers.Value(123)
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self.assertEqual(repr(value_provider),
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'<dependency_injector.providers.static.'
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'Value({0}) at {1}>'.format(
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repr(123),
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hex(id(value_provider))))
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