public async Task Given2GoodWeatherSources_Handle_UseTheTopPriorityOne()
{
GetCurrentWeatherQuery query = new GetCurrentWeatherQuery("AU", "Melbourne");
IOptions <WeatherStackConfig> weatherStackconfig = Options.Create(new WeatherStackConfig
{
Units = UnitsEnum.Metric,
PriorityOrder = 1
});
var weatherStackService = new Mock <WeatherStackService>(weatherStackconfig);
weatherStackService.Setup(w => w.GetCurrentWeather("AU", "Melbourne"))
.ReturnsAsync((new WeatherOutputModel(5, 23), string.Empty));
IOptions <OpenWeatherMapConfig> config = Options.Create(new OpenWeatherMapConfig
{
Units = UnitsEnum.Metric,
PriorityOrder = 2
});
OpenWeatherMapService openWeatherMapService = new OpenWeatherMapService(config);
List <IWeatherService> weatherServices = new List <IWeatherService>
{
weatherStackService.Object, openWeatherMapService
};
var memoryCache = new Mock <IMemoryCacheService>();
memoryCache.Setup(m => m.SetCache(It.IsAny <string>(), It.IsAny <object>()));
GetCurrentWeatherQueryHandler queryHandler = new GetCurrentWeatherQueryHandler(weatherServices, memoryCache.Object);
await queryHandler.Handle(query, CancellationToken.None);
//assert
weatherStackService.Verify(w => w.GetCurrentWeather("AU", "Melbourne"));
}
public async Task GivenAllBadWeatherSources_Handle_ShouldGetFromMemoryCache()
{
GetCurrentWeatherQuery query = new GetCurrentWeatherQuery("AU", "Melbourne");
IOptions <OpenWeatherMapConfig> config = Options.Create(new OpenWeatherMapConfig
{
BaseURL = "WillFailURL",
Units = UnitsEnum.Metric,
PriorityOrder = 1
});
OpenWeatherMapService openWeatherMapService = new OpenWeatherMapService(config);
IOptions <WeatherStackConfig> weatherStackConfig = Options.Create(new WeatherStackConfig
{
BaseURL = "WillFailURL",
Units = UnitsEnum.Metric,
PriorityOrder = 2
});
var weatherStackService = new WeatherStackService(weatherStackConfig);
List <IWeatherService> weatherServices = new List <IWeatherService>
{
weatherStackService, openWeatherMapService
};
var memoryCache = new Mock <IMemoryCacheService>();
memoryCache.Setup(m => m.GetValueFromCache <WeatherOutputModel>(It.IsAny <string>())).Returns(new WeatherOutputModel(5, 23));
GetCurrentWeatherQueryHandler queryHandler = new GetCurrentWeatherQueryHandler(weatherServices, memoryCache.Object);
var(weatherOutput, error) = await queryHandler.Handle(query, CancellationToken.None);
//assert
Assert.Empty(error);
Assert.Equal(5, weatherOutput.wind_speed);
Assert.Equal(23, weatherOutput.temperature_degrees);
}
