public async Task ConfiguredWith_2SecondsTimeBetweenRetries_2_Retries_ExponentialBackoff()
{
var settings = new WeatherClientSettings("apiKey");
settings.Retries = 2;
settings.ThrowOnError = false;
settings.TimeBetweenRetries = TimeSpan.FromSeconds(2);
settings.ExponentialBackoffInRetries = true;
int timesTried = 0;
Stopwatch stopwatch = new Stopwatch();
SetUpWithSettings(settings, () =>
{
timesTried++;
var response = new HttpResponseMessage(System.Net.HttpStatusCode.InternalServerError);
return(Task.FromResult(response));
});
stopwatch.Start();
CurrentWeather weather = await client.GetByName("Barcelona");
stopwatch.Stop();
Assert.IsNull(weather);
//one of the actual request and 2 for the retries
Assert.AreEqual(3, timesTried);
Assert.Greater(stopwatch.Elapsed, TimeSpan.FromSeconds(5));
}
public void ConfiguredWithThrowOnError_ResponseHasError_Throws()
{
var settings = new WeatherClientSettings("apiKey");
settings.Retries = 0;
settings.ThrowOnError = true;
SetUpWithSettings(settings, () =>
{
var response = new HttpResponseMessage(System.Net.HttpStatusCode.NotFound);
return(Task.FromResult(response));
});
Assert.ThrowsAsync <HttpRequestException> (async() => await client.GetByName("Barcelona"));
}
public void NotConfiguredWithThrowOnError_ResponseHasError_ReturnsNull()
{
var settings = new WeatherClientSettings("apiKey");
settings.Retries = 0;
settings.ThrowOnError = false;
SetUpWithSettings(settings, () =>
{
var response = new HttpResponseMessage(System.Net.HttpStatusCode.NotFound);
return(Task.FromResult(response));
});
CurrentWeather weather = new CurrentWeather();
Assert.DoesNotThrowAsync(async() => weather = await client.GetByName("Barcelona"));
Assert.IsNull(weather);
}
public void CreateWithCustomSettings()
{
var settings = new WeatherClientSettings(apiKey)
{
Version = "4",
BaseURL = "api.test.org/data",
ThrowOnError = true,
Retries = 5,
TimeBetweenRetries = TimeSpan.FromSeconds(2),
ExponentialBackoffInRetries = true
};
var weatherClient = new WeatherClient(settings);
Assert.AreEqual(apiKey, weatherClient.Settings.AppId);
Assert.AreEqual("4", weatherClient.Settings.Version);
Assert.AreEqual("api.test.org/data", weatherClient.Settings.BaseURL);
Assert.IsTrue(weatherClient.Settings.ThrowOnError);
Assert.AreEqual(5, weatherClient.Settings.Retries);
Assert.AreEqual(TimeSpan.FromSeconds(2), weatherClient.Settings.TimeBetweenRetries);
Assert.IsTrue(weatherClient.Settings.ExponentialBackoffInRetries);
}
public async Task ConfiguredWithRetries_NotFoundError_NotRetrying()
{
var settings = new WeatherClientSettings("apiKey");
settings.Retries = 6;
settings.ThrowOnError = false;
settings.TimeBetweenRetries = TimeSpan.FromSeconds(0);
int timesTried = 0;
SetUpWithSettings(settings, () =>
{
timesTried++;
var response = new HttpResponseMessage(System.Net.HttpStatusCode.NotFound);
return(Task.FromResult(response));
});
CurrentWeather weather = await client.GetByName("Barcelona");
Assert.IsNull(weather);
//one of the actual request
Assert.AreEqual(1, timesTried);
}
protected ClientBase(HttpClient client, WeatherClientSettings settings)
{
this.client = client;
this.settings = settings;
}
public void SetUpWithSettings(WeatherClientSettings settings, Func <Task <HttpResponseMessage> > mockResponseMessage)
{
var httpclient = MockHttpClient.GetMockClient(mockResponseMessage);
client = new CurrentWeatherClient(httpclient, settings);
}
