'manage.py check does not raise errors when an app imports a base
class that itself has an abstract base.'

def test_app_with_import(self):

    self.write_settings('settings.py', apps=['admin_scripts.app_with_import', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sites'], sdict={'DEBUG': True})
    args = ['check']
    (out, err) = self.run_manage(args)
    self.assertNoOutput(err)
    self.assertEqual(out, 'System    check    identified    no    issues    (0    silenced).\n')
