public void WorkerThreadIdleTimeOutTest()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(800, 2, 4);
// İş parçası süresi / İş parçası eklenme süresi = 400 / 100 => 4 İşçi Thread gerekli.
int workItemDuration = 400;
Timer timer = new Timer(100);
timer.AutoReset = true;
timer.Elapsed += (sender, args) =>
{
workerThreadPool.QueueWorkItem(
new ActionWorkItem(
() =>
{
Thread.Sleep(workItemDuration);
}));
};
timer.Start();
Thread.Sleep(3000);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
// İş parçası süresi / İş parçası eklenme süresi = 150 / 100 => 2 İşçi Thread gerekli.
Interlocked.Add(ref workItemDuration, -250); // 400 - 250 = 150
Thread.Sleep(3000);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
timer.Stop();
workerThreadPool.Shutdown(true, 3000);
}
public void SetMaximumWorkerThreadsCountShouldAddNoWorkerThreadsToReachTheMaximumThreadCountWhenMaximumThreadsCountIncreasesAndThereAreWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 2);
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.QueueWorkItem(new ManualFinishWorkItem());
workerThreadPool.QueueWorkItem(new ManualFinishWorkItem());
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(2, manualFinishWorkItemQueueStub.Count);
workerThreadPool.SetMaximumWorkerThreadsCount(4);
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(0, manualFinishWorkItemQueueStub.Count);
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateOptimumWorkerThreadsWhenThereAreWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
for (int i = 0; i < 5; i++)
{
workItemQueue.Enqueue(new ManualFinishWorkItem());
}
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
int exitedWorkerThreadCount = 0;
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 4);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
if (Interlocked.Increment(ref exitedWorkerThreadCount) >= 2)
{
manualResetEvent.Set();
}
};
workItemQueue.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
manualResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void QueueWorkItemShouldAddANewWorkerThreadWhenMaxThreadCountIsNotReached()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 2);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
workItemQueue.WaitAllStart(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
ManualFinishWorkItem newWorkItem = new ManualFinishWorkItem();
workerThreadPool.QueueWorkItem(newWorkItem);
newWorkItem.WaitStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateMinimumNumberWorkerThreadsWhenThereIsNoWorkItemInTheQueue()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(3, 4);
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void SetMinimumWorkerThreadsCountShouldThrowExceptionWhenMinimumThreadsCountIsLessThanZero()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(0, 1);
Assert.Throws <ArgumentOutOfRangeException>(() => workerThreadPool.SetMinimumWorkerThreadsCount(-1));
workerThreadPool.Shutdown(true, 500);
}
public void SetMinimumWorkerThreadsCountShouldThrowExceptionWhenMinimumThreadsCountIsBiggerThanMaximumCount()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(2, 3);
Assert.Throws <ArgumentOutOfRangeException>(() => workerThreadPool.SetMinimumWorkerThreadsCount(4));
workerThreadPool.Shutdown(true, 500);
}
public void QueueWorkItemShouldThrowExceptionWhenWorkerThreadPoolIsShutDown()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
workerThreadPool.Shutdown();
Assert.Throws <LaboThreadingException>(() => workerThreadPool.QueueWorkItem(Substitute.For <IWorkItem>()));
}
public void DefaultConstructorShouldSetTheDefaultMaxWorkerThreadsCount()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
Assert.AreEqual(WorkerThreadPool.DEFAULT_MAX_WORKER_THREADS_PER_CORE * Environment.ProcessorCount, workerThreadPool.MaxWorkerThreads);
workerThreadPool.Shutdown(true, 500);
}
public void DefaultConstructorShouldSetTheDefaultWorkerThreadIdleTimeout()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
WorkItemQueue workItemQueue = (WorkItemQueue)workerThreadPool.WorkItemQueue;
Assert.AreEqual(WorkerThreadPool.DEFAULT_WORKER_THREAD_IDLE_TIMEOUT, workItemQueue.WorkItemWaiterTimeOutInMilliSeconds);
workerThreadPool.Shutdown(true, 500);
}
public void DefaultConstructorShouldSetTheDefaultWorkerThreadIdleTimeout()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
WorkItemQueue workItemQueue = (WorkItemQueue)workerThreadPool.WorkItemQueue;
Assert.AreEqual(WorkerThreadPool.DEFAULT_WORKER_THREAD_IDLE_TIMEOUT, workItemQueue.WorkItemWaiterTimeOutInMilliSeconds);
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorTestInitialWorkerThreadsCount(int workItemQueueCount, int minWorkerThreads, int maxWorkerThreads, int expected)
{
IWorkItemQueue workItemQueue = Substitute.For <IWorkItemQueue>();
workItemQueue.Count.Returns(workItemQueueCount);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, minWorkerThreads, maxWorkerThreads);
Assert.AreEqual(expected, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateOptimumWorkerThreadsWhenThereAreWorkItemsInTheQueue(int workItemCount, int expected)
{
IWorkItemQueue workItemQueue = Substitute.For <IWorkItemQueue>();
workItemQueue.Count.Returns(workItemCount);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 4);
Assert.AreEqual(expected, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldRemoveWorkerThreadsWhenMaximumThreadsCountDecreases()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
AutoResetEvent autoResetEvent = new AutoResetEvent(false);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 3);
workerThreadPool.WorkerThreadExiting += (sender, args) => { autoResetEvent.Set(); };
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(3, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(2);
manualFinishWorkItemQueueStub.WorkItems[0].Stop();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
autoResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[1].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[2].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(1, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[3].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void A()
{
Random random = new Random();
WorkerThreadPool workerThreadPool = new WorkerThreadPool(6 * 10 * 1000, 8, 8);
const int workItemsCount = 100;
int counter = 0;
int totalSleepMilliseconds = 0;
IList <IWorkItem> workItems = new List <IWorkItem>(workItemsCount);
for (int i = 0; i < workItemsCount; i++)
{
ActionWorkItem workItem = new ActionWorkItem(
() =>
{
int sleepMilliseconds = random.Next(1000, 2000);
Interlocked.Add(ref totalSleepMilliseconds, sleepMilliseconds);
Thread.Sleep(sleepMilliseconds);
Interlocked.Increment(ref counter);
});
workItems.Add(workItem);
}
Stopwatch stopwatch = Stopwatch.StartNew();
stopwatch.Start();
for (int i = 0; i < workItems.Count; i++)
{
IWorkItem workItem = workItems[i];
workerThreadPool.QueueWorkItem(workItem);
}
workerThreadPool.Shutdown(true, 500);
stopwatch.Stop();
TimeSpan totalExecutionTime = TimeSpan.Zero;
for (int i = 0; i < workItems.Count; i++)
{
IWorkItem workItem = workItems[i];
totalExecutionTime += workItem.ExecutionTime;
}
totalExecutionTime.ToString();
}
public void ConstructorShoulStartMinimumCountWorkerThreadsAlthoughThereIsNoWorkItemsInTheQueue()
{
IWorkItemQueue workItemQueue = Substitute.For <IWorkItemQueue>();
workItemQueue.Count.Returns(0);
workItemQueue.Dequeue().Returns((IWorkItem)null);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 2);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Wait.While(() => !workerThreadPool.WorkerThreads.All(x => x.Thread.IsAlive), 500);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldAddNoWorkerThreadsWhenMaximumThreadsCountIncreasesAndThereIsNoWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 3);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(4);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void A()
{
Random random = new Random();
WorkerThreadPool workerThreadPool = new WorkerThreadPool(6 * 10 * 1000, 8, 8);
const int workItemsCount = 100;
int counter = 0;
int totalSleepMilliseconds = 0;
IList<IWorkItem> workItems = new List<IWorkItem>(workItemsCount);
for (int i = 0; i < workItemsCount; i++)
{
ActionWorkItem workItem = new ActionWorkItem(
() =>
{
int sleepMilliseconds = random.Next(1000, 2000);
Interlocked.Add(ref totalSleepMilliseconds, sleepMilliseconds);
Thread.Sleep(sleepMilliseconds);
Interlocked.Increment(ref counter);
});
workItems.Add(workItem);
}
Stopwatch stopwatch = Stopwatch.StartNew();
stopwatch.Start();
for (int i = 0; i < workItems.Count; i++)
{
IWorkItem workItem = workItems[i];
workerThreadPool.QueueWorkItem(workItem);
}
workerThreadPool.Shutdown(true, 500);
stopwatch.Stop();
TimeSpan totalExecutionTime = TimeSpan.Zero;
for (int i = 0; i < workItems.Count; i++)
{
IWorkItem workItem = workItems[i];
totalExecutionTime += workItem.ExecutionTime;
}
totalExecutionTime.ToString();
}
public void SetMinimumWorkerThreadsCountShouldNotAddWorkerThreadsWhenMinimumThreadsCountIncreasesAndThereIsWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
int exitedWorkerThreadCount = 0;
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 2, 4);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
if (Interlocked.Increment(ref exitedWorkerThreadCount) >= 1)
{
manualResetEvent.Set();
}
};
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(1, manualFinishWorkItemQueueStub.Count);
workerThreadPool.SetMinimumWorkerThreadsCount(3);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(1, manualFinishWorkItemQueueStub.Count);
manualFinishWorkItemQueueStub.StopAll();
manualResetEvent.WaitOne();
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldAddNoNewWorkerThreadWhenMaxThreadCountIncreasedAndThereIsNoWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 1);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
workItemQueue.WaitAllStart(500);
workerThreadPool.SetMaximumWorkerThreadsCount(2);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(1, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldRemoveIdleWorkerThreadsWhenDecreased()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
workItemQueue.Enqueue(new ManualFinishWorkItem());
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 2);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
manualResetEvent.Set();
};
workItemQueue.WaitAllStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(1);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.WorkItems[0].Stop();
workItemQueue.Enqueue(new ManualFinishWorkItem());
Assert.AreEqual(1, workItemQueue.Count);
manualResetEvent.WaitOne(300);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(1, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateMinimumNumberWorkerThreadsWhenThereIsNoWorkItemInTheQueue()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(3, 4);
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateOptimumWorkerThreadsWhenThereAreWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
for (int i = 0; i < 5; i++)
{
workItemQueue.Enqueue(new ManualFinishWorkItem());
}
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
int exitedWorkerThreadCount = 0;
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 4);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
if (Interlocked.Increment(ref exitedWorkerThreadCount) >= 2)
{
manualResetEvent.Set();
}
};
workItemQueue.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
manualResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void SetMinimumWorkerThreadsCountShouldNotAddWorkerThreadsWhenMinimumThreadsCountIncreasesAndThereIsWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
int exitedWorkerThreadCount = 0;
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 2, 4);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
if (Interlocked.Increment(ref exitedWorkerThreadCount) >= 1)
{
manualResetEvent.Set();
}
};
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(1, manualFinishWorkItemQueueStub.Count);
workerThreadPool.SetMinimumWorkerThreadsCount(3);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(1, manualFinishWorkItemQueueStub.Count);
manualFinishWorkItemQueueStub.StopAll();
manualResetEvent.WaitOne();
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void DefaultConstructorShouldSetTheDefaultMaxWorkerThreadsCount()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
Assert.AreEqual(WorkerThreadPool.DEFAULT_MAX_WORKER_THREADS_PER_CORE * Environment.ProcessorCount, workerThreadPool.MaxWorkerThreads);
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorShouldCreateOptimumWorkerThreadsWhenThereAreWorkItemsInTheQueue(int workItemCount, int expected)
{
IWorkItemQueue workItemQueue = Substitute.For<IWorkItemQueue>();
workItemQueue.Count.Returns(workItemCount);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 4);
Assert.AreEqual(expected, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void WorkerThreadIdleTimeOutTest()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(800, 2, 4);
// İş parçası süresi / İş parçası eklenme süresi = 400 / 100 => 4 İşçi Thread gerekli.
int workItemDuration = 400;
Timer timer = new Timer(100);
timer.AutoReset = true;
timer.Elapsed += (sender, args) =>
{
workerThreadPool.QueueWorkItem(
new ActionWorkItem(
() =>
{
Thread.Sleep(workItemDuration);
}));
};
timer.Start();
Thread.Sleep(3000);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
// İş parçası süresi / İş parçası eklenme süresi = 150 / 100 => 2 İşçi Thread gerekli.
Interlocked.Add(ref workItemDuration, -250); // 400 - 250 = 150
Thread.Sleep(3000);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
timer.Stop();
workerThreadPool.Shutdown(true, 3000);
}
public void QueueWorkItemShouldAddANewWorkerThreadWhenMaxThreadCountIsNotReached()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 2);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
workItemQueue.WaitAllStart(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
ManualFinishWorkItem newWorkItem = new ManualFinishWorkItem();
workerThreadPool.QueueWorkItem(newWorkItem);
newWorkItem.WaitStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void QueueWorkItemShouldThrowExceptionWhenWorkerThreadPoolIsShutDown()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool();
workerThreadPool.Shutdown();
Assert.Throws<LaboThreadingException>(() => workerThreadPool.QueueWorkItem(Substitute.For<IWorkItem>()));
}
public void ConstructorShoulStartMinimumCountWorkerThreadsAlthoughThereIsNoWorkItemsInTheQueue()
{
IWorkItemQueue workItemQueue = Substitute.For<IWorkItemQueue>();
workItemQueue.Count.Returns(0);
workItemQueue.Dequeue().Returns((IWorkItem)null);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 2, 2);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Wait.While(() => !workerThreadPool.WorkerThreads.All(x => x.Thread.IsAlive), 500);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldAddNoWorkerThreadsToReachTheMaximumThreadCountWhenMaximumThreadsCountIncreasesAndThereAreWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 2);
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.QueueWorkItem(new ManualFinishWorkItem());
workerThreadPool.QueueWorkItem(new ManualFinishWorkItem());
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(2, manualFinishWorkItemQueueStub.Count);
workerThreadPool.SetMaximumWorkerThreadsCount(4);
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(4, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(4, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
Assert.AreEqual(0, manualFinishWorkItemQueueStub.Count);
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void SetMinimumWorkerThreadsCountShouldThrowExceptionWhenMinimumThreadsCountIsBiggerThanMaximumCount()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(2, 3);
Assert.Throws<ArgumentOutOfRangeException>(() => workerThreadPool.SetMinimumWorkerThreadsCount(4));
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldAddNoWorkerThreadsWhenMaximumThreadsCountIncreasesAndThereIsNoWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 3);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(4);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldRemoveIdleWorkerThreadsWhenDecreased()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
workItemQueue.Enqueue(new ManualFinishWorkItem());
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 2);
workerThreadPool.WorkerThreadExiting += (sender, args) =>
{
manualResetEvent.Set();
};
workItemQueue.WaitAllStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(1);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.WorkItems[0].Stop();
workItemQueue.Enqueue(new ManualFinishWorkItem());
Assert.AreEqual(1, workItemQueue.Count);
manualResetEvent.WaitOne(300);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(1, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldRemoveWorkerThreadsWhenMaximumThreadsCountDecreases()
{
ManualFinishWorkItemQueueStub manualFinishWorkItemQueueStub = new ManualFinishWorkItemQueueStub();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
AutoResetEvent autoResetEvent = new AutoResetEvent(false);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(manualFinishWorkItemQueueStub, 1, 3);
workerThreadPool.WorkerThreadExiting += (sender, args) => { autoResetEvent.Set(); };
manualFinishWorkItemQueueStub.WaitAllStart(500);
Assert.AreEqual(3, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(3, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workerThreadPool.SetMaximumWorkerThreadsCount(2);
manualFinishWorkItemQueueStub.WorkItems[0].Stop();
manualFinishWorkItemQueueStub.Enqueue(new ManualFinishWorkItem());
autoResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[1].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[2].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(1, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.WorkItems[3].Stop();
autoResetEvent.WaitOne(500);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(0, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
manualFinishWorkItemQueueStub.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void SetMaximumWorkerThreadsCountShouldAddANewWorkerThreadWhenMaxThreadCountIncreasedAndThereAreWorkItemsInTheQueue()
{
ManualFinishWorkItemQueueStub workItemQueue = new ManualFinishWorkItemQueueStub();
workItemQueue.Enqueue(new ManualFinishWorkItem());
workItemQueue.Enqueue(new ManualFinishWorkItem());
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, 0, 1);
Assert.AreEqual(1, workerThreadPool.WorkerThreadsCount);
workerThreadPool.SetMaximumWorkerThreadsCount(2);
workItemQueue.WaitAllStart(500);
Assert.AreEqual(2, workerThreadPool.WorkerThreadsCount);
Assert.AreEqual(2, workerThreadPool.WorkerThreads.Count(x => x.IsBusy));
workItemQueue.StopAll();
workerThreadPool.Shutdown(true, 500);
}
public void ConstructorTestInitialWorkerThreadsCount(int workItemQueueCount, int minWorkerThreads, int maxWorkerThreads, int expected)
{
IWorkItemQueue workItemQueue = Substitute.For<IWorkItemQueue>();
workItemQueue.Count.Returns(workItemQueueCount);
WorkerThreadPool workerThreadPool = new WorkerThreadPool(workItemQueue, minWorkerThreads, maxWorkerThreads);
Assert.AreEqual(expected, workerThreadPool.WorkerThreadsCount);
workerThreadPool.Shutdown(true, 500);
}
public void SetMinimumWorkerThreadsCountShouldThrowExceptionWhenMinimumThreadsCountIsLessThanZero()
{
WorkerThreadPool workerThreadPool = new WorkerThreadPool(0, 1);
Assert.Throws<ArgumentOutOfRangeException>(() => workerThreadPool.SetMinimumWorkerThreadsCount(-1));
workerThreadPool.Shutdown(true, 500);
}