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847f46e9bf
Most QuerySet methods are mapped onto the Manager and, in general, it isn't necessary to call .all() on the manager.
54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
import os
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from django.core.management import call_command
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from django.test import TestCase, TransactionTestCase
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from django.test.utils import extend_sys_path
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from .models import (
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ConcreteModel,
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ConcreteModelSubclass,
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ConcreteModelSubclassProxy,
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ProxyModel,
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)
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class ProxyModelInheritanceTests(TransactionTestCase):
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"""
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Proxy model inheritance across apps can result in migrate not creating the table
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for the proxied model (as described in #12286). This test creates two dummy
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apps and calls migrate, then verifies that the table has been created.
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"""
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available_apps = []
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def test_table_exists(self):
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with extend_sys_path(os.path.dirname(os.path.abspath(__file__))):
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with self.modify_settings(INSTALLED_APPS={"append": ["app1", "app2"]}):
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call_command("migrate", verbosity=0, run_syncdb=True)
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from app1.models import ProxyModel
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from app2.models import NiceModel
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self.assertEqual(NiceModel.objects.count(), 0)
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self.assertEqual(ProxyModel.objects.count(), 0)
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class MultiTableInheritanceProxyTest(TestCase):
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def test_model_subclass_proxy(self):
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"""
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Deleting an instance of a model proxying a multi-table inherited
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subclass should cascade delete down the whole inheritance chain (see
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#18083).
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"""
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instance = ConcreteModelSubclassProxy.objects.create()
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instance.delete()
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self.assertEqual(0, ConcreteModelSubclassProxy.objects.count())
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self.assertEqual(0, ConcreteModelSubclass.objects.count())
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self.assertEqual(0, ConcreteModel.objects.count())
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def test_deletion_through_intermediate_proxy(self):
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child = ConcreteModelSubclass.objects.create()
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proxy = ProxyModel.objects.get(pk=child.pk)
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proxy.delete()
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self.assertFalse(ConcreteModel.objects.exists())
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self.assertFalse(ConcreteModelSubclass.objects.exists())
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