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