source: class CityDaoTest {
  
    @Autowired
    private CityDao cityDao;
  
    @Test
    void selectCityByIdTest() {
  
target:     City city = cityDao.selectCityById(1);
      assertThat(city.getId()).isEqualTo(1);
      assertThat(city.getName()).isEqualTo("San Francisco");
      assertThat(city.getState()).isEqualTo("CA");
      assertThat(city.getCountry()).isEqualTo("US");
    }
  
  }