mirror of
https://github.com/ets-labs/python-dependency-injector.git
synced 2024-11-22 09:36:48 +03:00
438 lines
16 KiB
Python
438 lines
16 KiB
Python
"""Dependency injector container unit tests."""
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import unittest2 as unittest
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from dependency_injector import (
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containers,
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providers,
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errors,
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)
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class ContainerA(containers.DeclarativeContainer):
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"""Declarative IoC container A."""
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p11 = providers.Provider()
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p12 = providers.Provider()
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class ContainerB(ContainerA):
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"""Declarative IoC container B.
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Extends container A.
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"""
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p21 = providers.Provider()
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p22 = providers.Provider()
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class DeclarativeContainerTests(unittest.TestCase):
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"""Declarative container tests."""
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def test_providers_attribute(self):
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"""Test providers attribute."""
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12,
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p21=ContainerB.p21,
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p22=ContainerB.p22))
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def test_cls_providers_attribute(self):
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"""Test cls_providers attribute."""
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self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
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p22=ContainerB.p22))
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def test_inherited_providers_attribute(self):
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"""Test inherited_providers attribute."""
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self.assertEqual(ContainerA.inherited_providers, dict())
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self.assertEqual(ContainerB.inherited_providers,
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dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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def test_set_get_del_providers(self):
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"""Test set/get/del provider attributes."""
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a_p13 = providers.Provider()
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b_p23 = providers.Provider()
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ContainerA.p13 = a_p13
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ContainerB.p23 = b_p23
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12,
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p13=a_p13))
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self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12,
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p21=ContainerB.p21,
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p22=ContainerB.p22,
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p23=b_p23))
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self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12,
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p13=a_p13))
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self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
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p22=ContainerB.p22,
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p23=b_p23))
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del ContainerA.p13
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del ContainerB.p23
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(ContainerB.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12,
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p21=ContainerB.p21,
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p22=ContainerB.p22))
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self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(ContainerB.cls_providers, dict(p21=ContainerB.p21,
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p22=ContainerB.p22))
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def test_declare_with_valid_provider_type(self):
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"""Test declaration of container with valid provider type."""
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class _Container(containers.DeclarativeContainer):
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provider_type = providers.Object
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px = providers.Object(object())
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self.assertIsInstance(_Container.px, providers.Object)
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def test_declare_with_invalid_provider_type(self):
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"""Test declaration of container with invalid provider type."""
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with self.assertRaises(errors.Error):
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class _Container(containers.DeclarativeContainer):
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provider_type = providers.Object
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px = providers.Provider()
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def test_seth_valid_provider_type(self):
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"""Test setting of valid provider."""
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class _Container(containers.DeclarativeContainer):
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provider_type = providers.Object
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_Container.px = providers.Object(object())
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self.assertIsInstance(_Container.px, providers.Object)
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def test_set_invalid_provider_type(self):
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"""Test setting of invalid provider."""
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class _Container(containers.DeclarativeContainer):
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provider_type = providers.Object
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with self.assertRaises(errors.Error):
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_Container.px = providers.Provider()
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def test_override(self):
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"""Test override."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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_Container.override(_OverridingContainer1)
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_Container.override(_OverridingContainer2)
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self.assertEqual(_Container.overridden_by,
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(_OverridingContainer1,
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_OverridingContainer2))
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self.assertEqual(_Container.p11.overridden_by,
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(_OverridingContainer1.p11,
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_OverridingContainer2.p11))
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def test_override_with_itself(self):
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"""Test override with itself."""
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with self.assertRaises(errors.Error):
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ContainerA.override(ContainerA)
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def test_override_with_parent(self):
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"""Test override with parent."""
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with self.assertRaises(errors.Error):
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ContainerB.override(ContainerA)
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def test_override_decorator(self):
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"""Test override decorator."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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@containers.override(_Container)
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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@containers.override(_Container)
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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self.assertEqual(_Container.overridden_by,
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(_OverridingContainer1,
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_OverridingContainer2))
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self.assertEqual(_Container.p11.overridden_by,
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(_OverridingContainer1.p11,
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_OverridingContainer2.p11))
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def test_reset_last_overridding(self):
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"""Test reset of last overriding."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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_Container.override(_OverridingContainer1)
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_Container.override(_OverridingContainer2)
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_Container.reset_last_overriding()
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self.assertEqual(_Container.overridden_by,
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(_OverridingContainer1,))
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self.assertEqual(_Container.p11.overridden_by,
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(_OverridingContainer1.p11,))
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def test_reset_last_overridding_when_not_overridden(self):
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"""Test reset of last overriding."""
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with self.assertRaises(errors.Error):
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ContainerA.reset_last_overriding()
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def test_reset_override(self):
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"""Test reset all overridings."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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_Container.override(_OverridingContainer1)
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_Container.override(_OverridingContainer2)
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_Container.reset_override()
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self.assertEqual(_Container.overridden_by, tuple())
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self.assertEqual(_Container.p11.overridden_by, tuple())
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def test_copy(self):
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"""Test copy decorator."""
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@containers.copy(ContainerA)
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class _Container1(ContainerA):
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pass
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@containers.copy(ContainerA)
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class _Container2(ContainerA):
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pass
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self.assertIsNot(ContainerA.p11, _Container1.p11)
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self.assertIsNot(ContainerA.p12, _Container1.p12)
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self.assertIsNot(ContainerA.p11, _Container2.p11)
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self.assertIsNot(ContainerA.p12, _Container2.p12)
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self.assertIsNot(_Container1.p11, _Container2.p11)
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self.assertIsNot(_Container1.p12, _Container2.p12)
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def test_copy_with_replacing(self):
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"""Test copy decorator with providers replacement."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Object(0)
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p12 = providers.Factory(dict, p11=p11)
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@containers.copy(_Container)
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class _Container1(_Container):
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p11 = providers.Object(1)
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p13 = providers.Object(11)
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@containers.copy(_Container)
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class _Container2(_Container):
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p11 = providers.Object(2)
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p13 = providers.Object(22)
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self.assertIsNot(_Container.p11, _Container1.p11)
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self.assertIsNot(_Container.p12, _Container1.p12)
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self.assertIsNot(_Container.p11, _Container2.p11)
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self.assertIsNot(_Container.p12, _Container2.p12)
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self.assertIsNot(_Container1.p11, _Container2.p11)
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self.assertIsNot(_Container1.p12, _Container2.p12)
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self.assertIs(_Container.p12.kwargs['p11'], _Container.p11)
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self.assertIs(_Container1.p12.kwargs['p11'], _Container1.p11)
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self.assertIs(_Container2.p12.kwargs['p11'], _Container2.p11)
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self.assertEqual(_Container.p12(), dict(p11=0))
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self.assertEqual(_Container1.p12(), dict(p11=1))
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self.assertEqual(_Container2.p12(), dict(p11=2))
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self.assertEqual(_Container1.p13(), 11)
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self.assertEqual(_Container2.p13(), 22)
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class DeclarativeContainerInstanceTests(unittest.TestCase):
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"""Declarative container instance tests."""
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def test_providers_attribute(self):
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"""Test providers attribute."""
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container_a1 = ContainerA()
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container_a2 = ContainerA()
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self.assertIsNot(container_a1.p11, container_a2.p11)
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self.assertIsNot(container_a1.p12, container_a2.p12)
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self.assertNotEqual(container_a1.providers, container_a2.providers)
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def test_set_get_del_providers(self):
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"""Test set/get/del provider attributes."""
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p13 = providers.Provider()
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container_a1 = ContainerA()
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container_a2 = ContainerA()
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container_a1.p13 = p13
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container_a2.p13 = p13
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(ContainerA.cls_providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
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p12=container_a1.p12,
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p13=p13))
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self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
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p12=container_a2.p12,
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p13=p13))
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del container_a1.p13
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self.assertEqual(container_a1.providers, dict(p11=container_a1.p11,
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p12=container_a1.p12))
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del container_a2.p13
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self.assertEqual(container_a2.providers, dict(p11=container_a2.p11,
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p12=container_a2.p12))
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del container_a1.p11
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del container_a1.p12
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self.assertEqual(container_a1.providers, dict())
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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del container_a2.p11
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del container_a2.p12
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self.assertEqual(container_a2.providers, dict())
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self.assertEqual(ContainerA.providers, dict(p11=ContainerA.p11,
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p12=ContainerA.p12))
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def test_set_invalid_provider_type(self):
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"""Test setting of invalid provider."""
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container_a = ContainerA()
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container_a.provider_type = providers.Object
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with self.assertRaises(errors.Error):
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container_a.px = providers.Provider()
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self.assertIs(ContainerA.provider_type,
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containers.DeclarativeContainer.provider_type)
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def test_override(self):
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"""Test override."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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self.assertEqual(container.overridden_by,
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(overriding_container1,
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overriding_container2))
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self.assertEqual(container.p11.overridden_by,
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(overriding_container1.p11,
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overriding_container2.p11))
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self.assertEqual(_Container.overridden_by, tuple())
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self.assertEqual(_Container.p11.overridden_by, tuple())
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def test_override_with_itself(self):
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"""Test override container with itself."""
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container = ContainerA()
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with self.assertRaises(errors.Error):
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container.override(container)
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def test_reset_last_overridding(self):
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"""Test reset of last overriding."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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container.reset_last_overriding()
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self.assertEqual(container.overridden_by,
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(overriding_container1,))
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self.assertEqual(container.p11.overridden_by,
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(overriding_container1.p11,))
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def test_reset_last_overridding_when_not_overridden(self):
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"""Test reset of last overriding."""
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container = ContainerA()
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with self.assertRaises(errors.Error):
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container.reset_last_overriding()
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def test_reset_override(self):
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"""Test reset all overridings."""
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class _Container(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer1(containers.DeclarativeContainer):
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p11 = providers.Provider()
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class _OverridingContainer2(containers.DeclarativeContainer):
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p11 = providers.Provider()
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p12 = providers.Provider()
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container = _Container()
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overriding_container1 = _OverridingContainer1()
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overriding_container2 = _OverridingContainer2()
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container.override(overriding_container1)
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container.override(overriding_container2)
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container.reset_override()
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self.assertEqual(container.overridden_by, tuple())
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self.assertEqual(container.p11.overridden_by, tuple())
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if __name__ == '__main__':
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unittest.main()
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