@Test
void selectCityByIdTest() {

  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");
}