public void Command_CircuitBreakerOnExecutionTimeout()
{
TestHystrixCommand<bool> command = new TestCommandWithTimeout(TimeSpan.FromMilliseconds(50.0), TestCommandWithTimeout.FallbackSuccess);
try
{
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Timeout));
command.Execute();
Assert.IsTrue(command.IsResponseFromFallback);
Assert.IsFalse(command.IsCircuitBreakerOpen);
Assert.IsFalse(command.IsResponseShortCircuited);
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Timeout));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ShortCircuited));
}
catch (Exception)
{
Assert.Fail("We should have received a response from the fallback.");
}
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsResponseTimedOut);
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ExceptionThrown));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackRejection));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackFailure));
Assert.AreEqual(1, 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(1, 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_ExecutionTimeoutFallbackFailure()
{
TestHystrixCommand<bool> command = new TestCommandWithTimeout(TimeSpan.FromMilliseconds(50.0), TestCommandWithTimeout.FallbackFailure);
try
{
command.Execute();
Assert.Fail("we shouldn't get here");
}
catch (Exception e)
{
if (e is HystrixRuntimeException)
{
HystrixRuntimeException de = (HystrixRuntimeException)e;
Assert.IsNotNull(de.FallbackException);
Assert.IsFalse(de.FallbackException is NotSupportedException);
Assert.IsNotNull(de.CommandType);
Assert.IsNotNull(de.InnerException);
Assert.IsTrue(de.InnerException is TimeoutException);
}
else
{
Assert.Fail("the exception should be HystrixRuntimeException");
}
}
// the time should be 50+ since we timeout at 50ms
Assert.IsTrue(command.ExecutionTimeInMilliseconds >= 50, "Execution Time is: " + command.ExecutionTimeInMilliseconds);
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ExceptionThrown));
Assert.AreEqual(0, 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(1, 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_QueuedExecutionTimeoutWithNoFallback()
{
TestHystrixCommand<bool> command = new TestCommandWithTimeout(TimeSpan.FromMilliseconds(50), TestCommandWithTimeout.FallbackNotImplemented);
try
{
command.Queue().Get();
Assert.Fail("we shouldn't get here");
}
catch (Exception e)
{
if (e is ExecutionException && e.InnerException is HystrixRuntimeException)
{
HystrixRuntimeException de = (HystrixRuntimeException)e.InnerException;
Assert.IsNotNull(de.FallbackException);
Assert.IsTrue(de.FallbackException is NotSupportedException);
Assert.IsNotNull(de.CommandType);
Assert.IsNotNull(de.InnerException);
Assert.IsTrue(de.InnerException is TimeoutException);
}
else
{
Assert.Fail("the exception should be ExecutionException with cause as HystrixRuntimeException");
}
}
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsResponseTimedOut);
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ExceptionThrown));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackRejection));
Assert.AreEqual(0, 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(1, 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_ExecutionHookTimeoutWithFallback()
{
TestHystrixCommand<bool> command = new TestCommandWithTimeout(TimeSpan.FromMilliseconds(50.0), TestCommandWithTimeout.FallbackSuccess);
try
{
command.Queue().Get();
}
catch (Exception e)
{
throw new Exception("not expecting", e);
}
// 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 of timeout
Assert.IsNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we should not have an exception because run() didn't fail, it timed out
Assert.IsNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should be run due to timeout
Assert.AreEqual(1, command.Builder.ExecutionHook.StartFallback);
// response since we have a fallback
Assert.IsNotNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// null since fallback succeeds
Assert.IsNull(command.Builder.ExecutionHook.FallbackFailureException);
// execution occurred
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should have a response because of fallback
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should not have an exception because of fallback
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
// we need to wait for the thread to complete before the onThreadComplete hook will be called
try
{
Thread.Sleep(400);
}
catch (ThreadInterruptedException)
{
// ignore
}
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
Hystrix.Reset();
}
public void Command_CountersOnExecutionTimeout()
{
TestHystrixCommand<bool> command = new TestCommandWithTimeout(TimeSpan.FromMilliseconds(50.0), TestCommandWithTimeout.FallbackSuccess);
try
{
command.Execute();
/* wait long enough for the command to have finished */
Thread.Sleep(200);
/* response should still be the same as 'testCircuitBreakerOnExecutionTimeout' */
Assert.IsTrue(command.IsResponseFromFallback);
Assert.IsFalse(command.IsCircuitBreakerOpen);
Assert.IsFalse(command.IsResponseShortCircuited);
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsResponseTimedOut);
Assert.IsFalse(command.IsSuccessfulExecution);
/* failure and timeout count should be the same as 'testCircuitBreakerOnExecutionTimeout' */
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(1, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Timeout));
/* we should NOT have a 'success' counter */
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
}
catch (Exception)
{
Assert.Fail("We should have received a response from the fallback.");
}
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Success));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.ExceptionThrown));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.Failure));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackRejection));
Assert.AreEqual(0, command.Builder.Metrics.GetRollingCount(HystrixRollingNumberEvent.FallbackFailure));
Assert.AreEqual(1, 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(1, 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();
}