def test_existing_stations(self):
     result = CheckConfig.is_existing_station("武昌", "兰州")
     self.assertTrue(result)
 def test_not_existing_end_station(self):
     with self.assertRaises(Exception) as context:
         CheckConfig.is_existing_station("武昌", "东湖")
     self.assertTrue('不存在此到达车站,请重新配置!' in str(context.exception))