def test_get_time_zone_returns_none_for_garbage_time_zone(self):
        time_zone = dt_util.get_time_zone("Non existing time zone")

        self.assertIsNone(time_zone)
Forces the wrapped function to always run sequentially, never in parallel.
dataset/ETHPy150Open home-assistant/home-assistant/tests/util/test_dt.py/TestDateUtil.test_get_time_zone_returns_none_for_garbage_time_zone--crossover with--dataset/ETHPy150Open fabric/fabric/fabric/decorators.py/serial