test_appengine.py 文件源码

def test_delete_db_ndb_mixed(self):
        # Start empty
        storage_ndb = appengine.StorageByKeyName(
            appengine.CredentialsNDBModel, 'foo', 'credentials')
        storage = appengine.StorageByKeyName(
            appengine.CredentialsModel, 'foo', 'credentials')

        # First DB, then NDB
        self.assertEqual(None, storage.get())
        storage.put(self.credentials)
        self.assertNotEqual(None, storage.get())

        storage_ndb.delete()
        self.assertEqual(None, storage.get())

        # First NDB, then DB
        self.assertEqual(None, storage_ndb.get())
        storage_ndb.put(self.credentials)

        storage.delete()
        self.assertNotEqual(None, storage_ndb.get())
        # NDB uses memcache and an instance cache (Context)
        ndb.get_context().clear_cache()
        memcache.flush_all()
        self.assertEqual(None, storage_ndb.get())