public void LimitsRetryCount()
{
// Setup to always return 429.
var fakeHttpHandler = new FakeHttpHandler
{
StatusCodeToReturn = (HttpStatusCode)429,
TweakResponse = (response) =>
{
response.Headers.Add("Retry-After", "1");
}
};
var retryHandler = new RetryAfterDelegatingHandler(fakeHttpHandler)
{
MaxRetries = 3
};
var httpClient = new HttpClient(retryHandler, false);
// Make a request using the HttpClient.
var fakeClient = new FakeServiceClient(httpClient);
var responseMessage = fakeClient.DoStuffSync();
Assert.NotNull(responseMessage);
Assert.Equal(3, fakeHttpHandler.NumberOfTimesFailedSoFar);
Assert.Equal((HttpStatusCode)429, responseMessage.StatusCode);
}
public void HttpClientTimeoutReturnsErrorResponse(string content)
{
// Setup to always return 429.
var fakeHttpHandler = new FakeHttpHandler
{
StatusCodeToReturn = (HttpStatusCode)429,
TweakResponse = (response) =>
{
response.Content = content == null ? null : new StringContent(String.Empty);
response.Headers.Add("Retry-After", "1");
}
};
var retryHandler = new RetryAfterDelegatingHandler(fakeHttpHandler);
// Setup HttpClient to timeout after 5 seconds.
var httpClient = new HttpClient(retryHandler, false)
{
Timeout = TimeSpan.FromSeconds(5)
};
// Make a request using the HttpClient.
var fakeClient = new FakeServiceClient(httpClient);
var responseMessage = fakeClient.DoStuffSync();
Assert.NotNull(responseMessage);
Assert.True(fakeHttpHandler.NumberOfTimesFailedSoFar > 1);
Assert.Equal((HttpStatusCode)429, responseMessage.StatusCode);
}
public void TaskCanceledCallingBaseSendAsyncCausesErrorResponse()
{
// Setup to always return 429.
var fakeHttpHandler = new FakeHttpHandler();
fakeHttpHandler.StatusCodeToReturn = (HttpStatusCode)429;
int callCount = 0;
fakeHttpHandler.TweakResponse = (response) =>
{
// After 3 calls returning 429, cause TaskCanceledException to be thrown.
if (callCount++ > 3)
{
throw new TaskCanceledException();
}
response.Content = new StringContent(String.Empty);
response.Headers.Add("Retry-After", "1");
};
var retryHandler = new RetryAfterDelegatingHandler(fakeHttpHandler);
// Setup HttpClient to timeout after 5 seconds.
var httpClient = new HttpClient(retryHandler, false)
{
Timeout = TimeSpan.FromSeconds(5)
};
// Make a request using the HttpClient.
var fakeClient = new FakeServiceClient(httpClient);
var responseMessage = fakeClient.DoStuffSync();
Assert.NotNull(responseMessage);
Assert.True(fakeHttpHandler.NumberOfTimesFailedSoFar > 1);
Assert.Equal((HttpStatusCode)429, responseMessage.StatusCode);
}
