public void TestThreadPoolPausedAndResumed()
        {
            threadPool = new ThreadPool(Environment.ProcessorCount, "testWorker");

            var wirs = new List<IWorkItemState>();

            for (var i = 0; i < 10; i++)
            {
                if (i == 5)
                {
                    threadPool.Sleep();
                    Thread.Sleep(2000);
                }
                var wir = threadPool.EnqueueWorkItem(WriteToConsole, "test " + (i + 1));
                wirs.Add(wir);
            }

            threadPool.Wakeup();

            foreach (var workItemState in wirs)
            {
                workItemState.Result();
                workItemState.Dispose();
            }

            threadPool.ShutDown();
        }