source: class WeatherWebApiTest {
  
      @Test public void testPastWeather() {
  
target:         WeatherWebApi api = new WeatherWebApi(new HttpRequest());
          List<WeatherInfo> jan = api.pastWeather(37.017, -7.933, LocalDate.of(2020, 1, 1), LocalDate.of(2020, 1, 30));
          WeatherInfo first = jan.iterator().next();
          Assert.assertEquals(14, first.tempC);
      }
  
  }