public async Task FuncAsync_Should_Be_Tried_3Times_With_ConstantInterval()
{
var exceptionCount = 0;
var failureCount = 0;
var successCount = 0;
var watch = new Stopwatch();
watch.Start();
await RetryLogic
.DoAsync <int>(this.ThrowExceptionAsync)
.Handle <FileNotFoundException>()
.AtMost(3)
.WithConstantInterval(TimeSpan.FromMilliseconds(2000))
.OnException <FileNotFoundException>(e => ++ exceptionCount)
.OnFailure(() => ++ failureCount)
.OnSuccess(x =>
{
++successCount;
})
.RunAsync();
watch.Stop();
watch.Elapsed.ShouldBeGreaterThanOrEqualTo(TimeSpan.FromMilliseconds(2000 * 2));
exceptionCount.ShouldEqual(3);
failureCount.ShouldEqual(1);
successCount.ShouldEqual(0);
}
public async Task ActionAsync_Should_Be_A_Success()
{
var exceptionCount = 0;
var failureCount = 0;
var successCount = 0;
var watch = new Stopwatch();
watch.Start();
await RetryLogic
.DoAsync(this.ActionNoExceptionAsync)
.Handle <FileNotFoundException>()
.AtMost(3)
.WithConstantInterval(TimeSpan.FromMilliseconds(2000))
.OnException <FileNotFoundException>(e => ++ exceptionCount)
.OnFailure(() => ++ failureCount)
.OnSuccess(x =>
{
++successCount;
})
.RunAsync();
watch.Stop();
exceptionCount.ShouldEqual(0);
failureCount.ShouldEqual(0);
successCount.ShouldEqual(1);
}
public async Task Retry_With_Minimal_Settings_Should_Not_Fail()
{
var watch = new Stopwatch();
watch.Start();
Exception exception = null;
await RetryLogic.DoAsync(ActionThrowExceptionAsync)
.OnFailureContinue()
.Handle <FileNotFoundException>()
.RunAsync();
watch.Stop();
watch.Elapsed.ShouldBeGreaterThanOrEqualTo(TimeSpan.FromMilliseconds(4010));
}
public async Task FuncAsync_Should_Be_Tried_3Times_With_ConstantInterval_IsTraced()
{
string trace = "";
var listener = new TestTraceListener();
listener.TraceWrite += (s, e) => trace += e.Message;
Trace.Listeners.Add(listener);
try
{
var exceptionCount = 0;
var failureCount = 0;
var successCount = 0;
var watch = new Stopwatch();
watch.Start();
await RetryLogic
.DoAsync <int>(this.ThrowExceptionAsync)
.Handle <FileNotFoundException>()
.WithTrace(true)
.AtMost(3)
.WithConstantInterval(TimeSpan.FromMilliseconds(2000))
.OnException <FileNotFoundException>(e => ++ exceptionCount)
.OnFailure(() => ++ failureCount)
.OnSuccess(x =>
{
++successCount;
})
.RunAsync();
watch.Stop();
watch.Elapsed.ShouldBeGreaterThanOrEqualTo(TimeSpan.FromMilliseconds(2000 * 2));
exceptionCount.ShouldEqual(3);
failureCount.ShouldEqual(1);
successCount.ShouldEqual(0);
trace.ShouldContain("Max attempt number reached");
}
finally
{
Trace.Listeners.Remove(listener);
}
}
public async Task Retry_Without_Settings_Should_Fail()
{
var watch = new Stopwatch();
watch.Start();
Exception exception = null;
try
{
await RetryLogic.DoAsync(ActionThrowExceptionAsync)
.RunAsync();
}
catch (Exception ex)
{
exception = ex;
}
exception.ShouldBeType(typeof(InvalidOperationException));
watch.Stop();
}
