public void Command_ExecutionMultipleTimes()
{
SuccessfulTestCommand command = new SuccessfulTestCommand();
Assert.IsFalse(command.IsExecutionComplete);
// first should succeed
Assert.AreEqual(true, command.Execute());
Assert.IsTrue(command.IsExecutionComplete);
Assert.IsTrue(command.IsExecutedInThread);
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsSuccessfulExecution);
try
{
// second should fail
command.Execute();
Assert.Fail("we should not allow this ... it breaks the state of request logs");
}
catch (Exception)
{
// we want to get here
}
try
{
// queue should also fail
command.Queue();
Assert.Fail("we should not allow this ... it breaks the state of request logs");
}
catch (Exception)
{
// we want to get here
}
Hystrix.Reset();
}
public void Command_ExecutionHookSuccessfulCommandWithMultipleGetsOnFuture()
{
TestHystrixCommand<bool> command = new SuccessfulTestCommand();
try
{
IFuture<bool> f = command.Queue();
f.Get();
f.Get();
f.Get();
f.Get();
}
catch (Exception e)
{
throw new Exception("Unexpected exception.", e);
}
/*
* Despite multiple calls to get() we should only have 1 call to the hooks.
*/
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we expect a successful response from run()
Assert.IsNotNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we do not expect an exception
Assert.IsNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should not be run as we were successful
Assert.AreEqual(0, command.Builder.ExecutionHook.StartFallback);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackFailureException);
// the queue() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should have a response from queue() since run() succeeded
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should not have an exception since run() succeeded
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
Hystrix.Reset();
}
public void Command_ExecutionHookSuccessfulCommandViaFireAndForget()
{
TestHystrixCommand<bool> command = new SuccessfulTestCommand();
try
{
// do not block on "get()" ... fire this asynchronously
command.Queue();
}
catch (Exception e)
{
throw new Exception("Unexpected exception.", e);
}
// wait for command to execute without calling get on the future
while (!command.IsExecutionComplete)
{
try
{
Thread.Sleep(10);
}
catch (ThreadInterruptedException)
{
throw new Exception("interrupted");
}
}
/*
* All the hooks should still work even though we didn't call get() on the future
*/
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we expect a successful response from run()
Assert.IsNotNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we do not expect an exception
Assert.IsNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should not be run as we were successful
Assert.AreEqual(0, command.Builder.ExecutionHook.StartFallback);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackFailureException);
// the queue() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should have a response from queue() since run() succeeded
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should not have an exception since run() succeeded
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
Hystrix.Reset();
}
public void Command_ExecutionHookSuccessfulCommand()
{
/* test with Execute() */
TestHystrixCommand<bool> command = new SuccessfulTestCommand();
command.Execute();
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we expect a successful response from run()
Assert.IsNotNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we do not expect an exception
Assert.IsNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should not be run as we were successful
Assert.AreEqual(0, command.Builder.ExecutionHook.StartFallback);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackFailureException);
// the Execute() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should have a response from Execute() since run() succeeded
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should not have an exception since run() succeeded
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
/* test with queue() */
command = new SuccessfulTestCommand();
try
{
command.Queue().Get();
}
catch (Exception e)
{
throw new Exception("Unexpected exception.", e);
}
// the run() method should run as we're not short-circuited or rejected
Assert.AreEqual(1, command.Builder.ExecutionHook.StartRun);
// we expect a successful response from run()
Assert.IsNotNull(command.Builder.ExecutionHook.RunSuccessResponse);
// we do not expect an exception
Assert.IsNull(command.Builder.ExecutionHook.RunFailureException);
// the fallback() method should not be run as we were successful
Assert.AreEqual(0, command.Builder.ExecutionHook.StartFallback);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackSuccessResponse);
// null since it didn't run
Assert.IsNull(command.Builder.ExecutionHook.FallbackFailureException);
// the queue() method was used
Assert.AreEqual(1, command.Builder.ExecutionHook.StartExecute);
// we should have a response from queue() since run() succeeded
Assert.IsNotNull(command.Builder.ExecutionHook.EndExecuteSuccessResponse);
// we should not have an exception since run() succeeded
Assert.IsNull(command.Builder.ExecutionHook.EndExecuteFailureException);
// thread execution
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadStart);
Assert.AreEqual(1, command.Builder.ExecutionHook.ThreadComplete);
Hystrix.Reset();
}
public void Command_QueueSuccess()
{
TestHystrixCommand<bool> command = new SuccessfulTestCommand();
try
{
IFuture<bool> future = command.Queue();
Assert.AreEqual(true, future.Get());
}
catch (Exception)
{
Assert.Fail("We received an exception.");
}
Assert.IsTrue(command.ExecutionTimeInMilliseconds > -1);
Assert.IsTrue(command.IsSuccessfulExecution);
Assert.AreEqual(1, 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(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(0, command.Builder.Metrics.GetHealthCounts().ErrorPercentage);
Assert.AreEqual(1, HystrixRequestLog.GetCurrentRequest().ExecutedCommands.Count());
Hystrix.Reset();
}
public void Command_BasicExecutionWorksWithoutRequestVariable()
{
try
{
/* force the RequestVariable to not be initialized */
HystrixRequestContext.ContextForCurrentThread = null;
TestHystrixCommand<bool> command = new SuccessfulTestCommand();
Assert.AreEqual(true, command.Execute());
TestHystrixCommand<bool> command2 = new SuccessfulTestCommand();
Assert.AreEqual(true, command2.Queue().Get());
// we should be able to execute without a RequestVariable if ...
// 1) We don't have a cacheKey
// 2) We don't ask for the RequestLog
// 3) We don't do collapsing
}
catch (Exception e)
{
Assert.Fail("We received an exception => " + e.Message);
}
Hystrix.Reset();
}