public void MetricPublisherFactory_SingleInitializePerKey()
{
TestHystrixMetricsPublisher publisher = new TestHystrixMetricsPublisher();
HystrixMetricsPublisherFactory factory = new HystrixMetricsPublisherFactory(publisher);
List<Thread> threads = new List<Thread>();
for (int i = 0; i < 20; i++)
{
threads.Add(new Thread(() =>
{
factory.GetPublisherForCommand(CommandKeyForUnitTest.KeyOne, null, null, null, null);
factory.GetPublisherForCommand(CommandKeyForUnitTest.KeyTwo, null, null, null, null);
factory.GetPublisherForThreadPool(ThreadPoolKeyForUnitTest.ThreadPoolOne, null, null);
}));
}
// start them
foreach (Thread t in threads)
{
t.Start();
}
// wait for them to finish
foreach (Thread t in threads)
{
t.Join();
}
// we should see 2 commands and 1 threadPool publisher created
Assert.AreEqual(2, publisher.CommandCounter);
Assert.AreEqual(1, publisher.ThreadCounter);
}