public void Command_QueueFailureWithFallbackFailure()
{
TestHystrixCommand<bool> command = new KnownFailureTestCommandWithFallbackFailure();
try
{
command.Queue().Get();
Assert.Fail("we shouldn't get here");
}
catch (Exception e)
{
if (e.InnerException is HystrixRuntimeException)
{
HystrixRuntimeException de = (HystrixRuntimeException)e.InnerException;
Assert.IsNotNull(de.FallbackException);
}
else
{
Assert.Fail("the cause should be HystrixRuntimeException");
}
}
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsFailedExecution);
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ExceptionThrown));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackRejection));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackFailure));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackSuccess));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.SemaphoreRejected));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ShortCircuited));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ThreadPoolRejected));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Timeout));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ResponseFromCache));
Assert.AreEqual(100, command.Builder.Metrics.GetHealthCounts().ErrorPercentage);
Assert.AreEqual(1, HystrixRequestLog.GetCurrentRequest().ExecutedCommands.Count());
Hystrix.Reset();
}
public void Command_ExecutionHookRunFailureWithFallbackFailure()
{
/* test with Execute() */
TestHystrixCommand<bool> command = new KnownFailureTestCommandWithFallbackFailure();
try
{
command.Execute();
Assert.Fail("Expecting exception");
}
catch (Exception)
{
// ignore
}
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we should not have a response because run() and fallback fail
Assert.IsNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we should have an exception because run() and fallback fail
Assert.IsNotNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should be run since run() failed
Assert.AreEqual(1, command.Builder.ExecutionHook.StartFallback);
// no response since fallback fails
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// not null since it's implemented but fails
Assert.IsNotNull(command.Builder.ExecutionHook.FallbackFailureException);
// the Execute() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should not have a response because run() and fallback fail
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should have an exception because run() and fallback fail
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// run() failure
Assert.AreEqual(FailureType.CommandException, command.Builder.ExecutionHook.EndExecuteFailureType);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
/* test with queue() */
command = new KnownFailureTestCommandWithFallbackFailure();
try
{
command.Queue().Get();
Assert.Fail("Expecting exception");
}
catch (Exception)
{
// ignore
}
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we should not have a response because run() and fallback fail
Assert.IsNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we should have an exception because run() and fallback fail
Assert.IsNotNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should be run since run() failed
Assert.AreEqual(1, command.Builder.ExecutionHook.StartFallback);
// no response since fallback fails
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// not null since it's implemented but fails
Assert.IsNotNull(command.Builder.ExecutionHook.FallbackFailureException);
// the queue() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should not have a response because run() and fallback fail
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should have an exception because run() and fallback fail
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// run() failure
Assert.AreEqual(FailureType.CommandException, command.Builder.ExecutionHook.EndExecuteFailureType);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
Hystrix.Reset();
}