@Test public void testPastWeather() {

    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);
}