public void TestGetCitiesByCountry()
{
var globalWeatherSoapClient = new Mock <IGlobalWeatherSoapClient>();
globalWeatherSoapClient.Setup(am => am.GetCitiesByCountry(It.IsAny <string>())).Returns(ListOfCities.citiesList);
WeatherController controller = new WeatherController(globalWeatherSoapClient.Object);
var response = controller.GetCitiesByCountry("Mali");
Assert.IsNotNull(response);
//more detailed asserts can be written here
}