public void TestSingleWriteSingleSubscriber()
{
CountdownEvent latch = new CountdownEvent(1);
IObserver <HystrixCommandCompletion> subscriber = new LatchedObserver(latch);
commandStream.Observe().Take(1).Subscribe(subscriber);
ExecutionResult result = ExecutionResult.From(HystrixEventType.SUCCESS).SetExecutedInThread();
HystrixCommandCompletion @event = HystrixCommandCompletion.From(result, CommandKey, ThreadPoolKey);
commandStream.Write(@event);
Assert.True(latch.Wait(TimeSpan.FromMilliseconds(1000)));
}
