+ def test_query_returns_none(self):
+ class MySink(bt2._UserSinkComponent):
+ def _user_consume(self):
+ pass
+
+ @staticmethod
+ def _user_query(priv_query_exec, obj, params, method_obj):
+ return
+
+ res = bt2.QueryExecutor(MySink, 'obj', None).query()
+ self.assertIsNone(res)
+