public void ResultThreadSafeTest()
{
var task = threadPool.Submit(() =>
{
manualResetEvent.WaitOne();
return(1);
});
for (var i = 0; i < numberOfThreads; ++i)
{
threads[i] = new Thread(() => results.Enqueue(task.Result));
threads[i].Start();
}
manualResetEvent.Set();
foreach (var thread in threads)
{
if (!thread.Join(100))
{
Assert.Fail("Deadlock");
}
}
Assert.AreEqual(numberOfThreads, results.Count);
foreach (var result in results)
{
Assert.AreEqual(1, result);
}
}
public void NumberOfWorkingThreadsTest()
{
int expectedNumberOfThreads = Environment.ProcessorCount;
var manualResetEvent = new ManualResetEvent(false);
using var countdownEvent = new CountdownEvent(expectedNumberOfThreads);
for (var i = 0; i < expectedNumberOfThreads; ++i)
{
threadPool.Submit(() =>
{
countdownEvent.Signal();
manualResetEvent.WaitOne();
return(0);
});
}
var waitingThread = new Thread(() =>
{
countdownEvent.Wait();
manualResetEvent.Set();
});
waitingThread.Start();
if (!waitingThread.Join(10))
{
Assert.Fail($"Number of threads in the {nameof(threadPool)} is less than expected");
}
}
public void ThreadCountTest()
{
using var countDownEventForTestThread = new CountdownEvent(threadsCount);
using var countDownEventForTasks = new CountdownEvent(1);
int callsCount = 0;
for (var i = 0; i < threadsCount * 2; i++)
{
threadPool.Submit(() =>
{
Interlocked.Increment(ref callsCount);
countDownEventForTestThread.Signal();
countDownEventForTasks.Wait();
return(true);
});
}
countDownEventForTestThread.Wait();
Assert.AreEqual(threadsCount, callsCount);
}