mirror of
https://github.com/ets-labs/python-dependency-injector.git
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143 lines
4.7 KiB
Python
143 lines
4.7 KiB
Python
"""Dependency injector catalogs overriding unittests."""
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import unittest2 as unittest
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from dependency_injector import (
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catalogs,
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providers,
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errors,
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)
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class CatalogA(catalogs.DeclarativeCatalog):
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"""Test catalog A."""
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p11 = providers.Provider()
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p12 = providers.Provider()
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class CatalogB(CatalogA):
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"""Test catalog B."""
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p21 = providers.Provider()
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p22 = providers.Provider()
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class OverrideTests(unittest.TestCase):
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"""Catalog overriding and override decorator test cases."""
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def tearDown(self):
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"""Tear test environment down."""
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CatalogA.reset_override()
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def test_overriding(self):
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"""Test catalog overriding with another catalog."""
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@catalogs.override(CatalogA)
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class OverridingCatalog(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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p11 = providers.Object(1)
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p12 = providers.Object(2)
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self.assertEqual(CatalogA.p11(), 1)
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self.assertEqual(CatalogA.p12(), 2)
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self.assertEqual(len(CatalogA.overridden_by), 1)
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def test_override_declarative_catalog_with_itself(self):
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"""Test catalog overriding of declarative catalog with itself."""
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with self.assertRaises(errors.Error):
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CatalogA.override(CatalogA)
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def test_override_declarative_catalog_with_subclass(self):
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"""Test catalog overriding of declarative catalog with subclass."""
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with self.assertRaises(errors.Error):
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CatalogB.override(CatalogA)
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def test_override_dynamic_catalog_with_itself(self):
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"""Test catalog overriding of dynamic catalog with itself."""
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catalog = catalogs.DynamicCatalog(p11=providers.Object(1),
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p12=providers.Object(2))
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with self.assertRaises(errors.Error):
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catalog.override(catalog)
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def test_overriding_with_dynamic_catalog(self):
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"""Test catalog overriding with another dynamic catalog."""
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CatalogA.override(catalogs.DynamicCatalog(p11=providers.Object(1),
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p12=providers.Object(2)))
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self.assertEqual(CatalogA.p11(), 1)
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self.assertEqual(CatalogA.p12(), 2)
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self.assertEqual(len(CatalogA.overridden_by), 1)
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def test_is_overridden(self):
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"""Test catalog is_overridden property."""
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self.assertFalse(CatalogA.is_overridden)
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@catalogs.override(CatalogA)
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class OverridingCatalog(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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self.assertTrue(CatalogA.is_overridden)
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def test_last_overriding(self):
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"""Test catalog last_overriding property."""
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@catalogs.override(CatalogA)
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class OverridingCatalog1(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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@catalogs.override(CatalogA)
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class OverridingCatalog2(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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self.assertIs(CatalogA.last_overriding, OverridingCatalog2)
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def test_last_overriding_on_not_overridden(self):
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"""Test catalog last_overriding property on not overridden catalog."""
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self.assertIsNone(CatalogA.last_overriding)
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def test_reset_last_overriding(self):
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"""Test resetting last overriding catalog."""
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@catalogs.override(CatalogA)
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class OverridingCatalog1(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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p11 = providers.Object(1)
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p12 = providers.Object(2)
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@catalogs.override(CatalogA)
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class OverridingCatalog2(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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p11 = providers.Object(3)
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p12 = providers.Object(4)
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CatalogA.reset_last_overriding()
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self.assertEqual(CatalogA.p11(), 1)
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self.assertEqual(CatalogA.p12(), 2)
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def test_reset_last_overriding_when_not_overridden(self):
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"""Test resetting last overriding catalog when it is not overridden."""
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with self.assertRaises(errors.Error):
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CatalogA.reset_last_overriding()
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def test_reset_override(self):
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"""Test resetting all catalog overrides."""
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@catalogs.override(CatalogA)
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class OverridingCatalog1(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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p11 = providers.Object(1)
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p12 = providers.Object(2)
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@catalogs.override(CatalogA)
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class OverridingCatalog2(catalogs.DeclarativeCatalog):
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"""Overriding catalog."""
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p11 = providers.Object(3)
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p12 = providers.Object(4)
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CatalogA.reset_override()
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self.assertFalse(CatalogA.p11.is_overridden)
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self.assertFalse(CatalogA.p12.is_overridden)
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