django/tests/modeltests/proxy_model_inheritance/tests.py

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"""
XX. Proxy model inheritance
Proxy model inheritance across apps can result in syncdb not creating the table
for the proxied model (as described in #12286). This test creates two dummy
apps and calls syncdb, then verifies that the table has been created.
"""
import os
import sys
from django.conf import settings, Settings
from django.core.management import call_command
from django.db.models.loading import load_app
from django.test import TransactionTestCase
class ProxyModelInheritanceTests(TransactionTestCase):
def setUp(self):
self.old_sys_path = sys.path[:]
sys.path.append(os.path.dirname(os.path.abspath(__file__)))
self.old_installed_apps = settings.INSTALLED_APPS
settings.INSTALLED_APPS = ('app1', 'app2')
map(load_app, settings.INSTALLED_APPS)
call_command('syncdb', verbosity=0)
global ProxyModel, NiceModel
from app1.models import ProxyModel
from app2.models import NiceModel
def tearDown(self):
settings.INSTALLED_APPS = self.old_installed_apps
sys.path = self.old_sys_path
def test_table_exists(self):
self.assertEquals(NiceModel.objects.all().count(), 0)
self.assertEquals(ProxyModel.objects.all().count(), 0)