public void TestInitialize()
{
this.exceptionHandler = new Mock <IExceptionHandler>();
this.exceptionHandler.Setup(v => v.ReportExceptionAsync(It.IsAny <Exception>()))
.Callback <Exception>(v => Trace.WriteLine((object)v));
this.transientErrorDetectionStrategy = new Mock <ITransientErrorDetectionStrategy>();
this.transientErrorDetectionStrategy.Setup(v => v.IsTransient(It.IsAny <Exception>())).Returns(true);
this.target = new FifthweekRetryOnTransientErrorHandler(
this.exceptionHandler.Object,
this.transientErrorDetectionStrategy.Object);
this.target.MaxDelay = TimeSpan.FromMilliseconds(10);
}
public async Task ItShouldImmediatelyRetryAfterTheFirstTransientFailure()
{
var retryStrategy =
FifthweekRetryOnTransientErrorHandler.CreateRetryStrategy(
FifthweekRetryOnTransientErrorHandler.DefaultMaxRetryCount,
FifthweekRetryOnTransientErrorHandler.DefaultMaxDelay);
Assert.IsTrue(retryStrategy.FastFirstRetry);
var shouldRetry = retryStrategy.GetShouldRetry();
TimeSpan firstDelay;
shouldRetry(0, new Exception(), out firstDelay);
Assert.AreEqual(TimeSpan.Zero, firstDelay);
}
public async Task ItShouldNotPosponeTheUserUnduely()
{
var retryStrategy = FifthweekRetryOnTransientErrorHandler.CreateRetryStrategy(
FifthweekRetryOnTransientErrorHandler.DefaultMaxRetryCount,
FifthweekRetryOnTransientErrorHandler.DefaultMaxDelay);
var shouldRetry = retryStrategy.GetShouldRetry();
TimeSpan totalDelay = TimeSpan.Zero;
for (int i = 0; i < FifthweekRetryOnTransientErrorHandler.DefaultMaxRetryCount; i++)
{
TimeSpan newDelay;
shouldRetry(i, new Exception(), out newDelay);
Trace.WriteLine(string.Format("Retry {0}, Delay {1}", i, newDelay));
totalDelay += newDelay;
}
Trace.WriteLine(string.Format("Total Delay {0}", totalDelay));
Assert.IsTrue(totalDelay < TimeSpan.FromSeconds(30));
}