public void DequeueShouldReturnQueuedWorkItemWhenQueueIsNotEmpty()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000);
IWorkItem workItemFirst = Substitute.For <IWorkItem>();
IWorkItem workItemLast = Substitute.For <IWorkItem>();
workItemQueue.Enqueue(workItemFirst);
workItemQueue.Enqueue(workItemLast);
Assert.AreEqual(workItemFirst, workItemQueue.Dequeue());
Assert.AreEqual(workItemLast, workItemQueue.Dequeue());
}
public void EnqueueShouldAddWorkItemsToQueueWhenThereAreNoWaiters()
{
IWorkItem workItem = Substitute.For<IWorkItem>();
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 100);
IList<Task> tasks = new List<Task>
{
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem)),
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem)),
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem))
};
Task.WaitAll(tasks.ToArray());
Assert.AreEqual(3, workItemQueue.Count);
}
public void Post(Action continuation)
{
if (continuation is null)
{
return;
}
var workItem = new WorkItem(continuation);
_lock.Enter();
try {
_queue.Enqueue(workItem);
}
finally {
_lock.Exit();
}
}
public void EnqueueShouldAddWorkItemsToQueueWhenThereAreNoWaiters()
{
IWorkItem workItem = Substitute.For <IWorkItem>();
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 100);
IList <Task> tasks = new List <Task>
{
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem)),
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem)),
Task.Factory.StartNew(() => workItemQueue.Enqueue(workItem))
};
Task.WaitAll(tasks.ToArray());
Assert.AreEqual(3, workItemQueue.Count);
}
public void ShutDownShouldNotBlockDequeueWhenThereAreWorkItemsInTheQueue()
{
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
const int workItemWaiterTimeOutInMilliSeconds = 1000;
WorkItemQueue workItemQueue = new WorkItemQueue(workItemWaiterTimeOutInMilliSeconds);
IWorkItem workItem = Substitute.For <IWorkItem>();
workItemQueue.Enqueue(workItem);
new Thread(
() =>
{
manualResetEvent.Set();
manualResetEvent.Reset();
manualResetEvent.WaitOne(300);
IWorkItem dequeuedWorkItem = workItemQueue.Dequeue();
Assert.AreEqual(workItem, dequeuedWorkItem);
}).Start();
manualResetEvent.WaitOne(300);
workItemQueue.ShutDown();
manualResetEvent.Set();
}
public void EnqueueTrySignalMethodShouldBeCalledWhenWaitingStackIsNotEmpty()
{
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For <IWorkItemWaiterEntry>();
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For <IWorkItemWaiterEntryStack>();
int count = 1;
workItemWaiterEntryStack.Count.Returns(x => count);
workItemWaiterEntryStack.Pop().Returns(
x =>
{
if (count == 1)
{
count = 0;
return(workItemWaiterEntry);
}
return(null);
});
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For <IWorkItem>();
workItemQueue.Enqueue(workItem);
workItemWaiterEntry.Received(1).TrySignal(workItem);
}
public void EnqueueShouldThrowExceptionWhenItIsCalledAfterShutDown()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 300);
workItemQueue.ShutDown();
Assert.Throws <LaboThreadingException>(() => workItemQueue.Enqueue(Substitute.For <IWorkItem>()));
}
public void EnqueueTrySignalMethodShouldNotBeCalledWhenWaitingStackIsEmpty()
{
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For <IWorkItemWaiterEntry>();
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For <IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(0);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For <IWorkItem>();
workItemQueue.Enqueue(workItem);
workItemWaiterEntry.DidNotReceiveWithAnyArgs().TrySignal(workItem);
}
public void EnqueueShouldNotAddWorkItemToQueueWhenWaiterIsSignaled()
{
IWorkItem workItem = Substitute.For<IWorkItem>();
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For<IWorkItemWaiterEntry>();
workItemWaiterEntry.TrySignal(workItem).Returns(true);
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For<IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(1);
workItemWaiterEntryStack.Pop().Returns(workItemWaiterEntry);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
workItemQueue.Enqueue(workItem);
Assert.AreEqual(0, workItemQueue.Count);
}
public void EnqueueShouldAddWorkItemToQueueWhenAllWaitersTimedOut()
{
Stack<IWorkItemWaiterEntry> workItemWaiterEntries = new Stack<IWorkItemWaiterEntry>();
workItemWaiterEntries.Push(CreateNotSignalableWorkItemWaiterEntry());
workItemWaiterEntries.Push(CreateNotSignalableWorkItemWaiterEntry());
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For<IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(x => workItemWaiterEntries.Count);
workItemWaiterEntryStack.Pop().Returns(x => workItemWaiterEntries.Pop());
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For<IWorkItem>();
workItemQueue.Enqueue(workItem);
Assert.AreEqual(1, workItemQueue.Count);
}
public void EnqueueShouldNotAddWorkItemToQueueWhenWaiterIsSignaled()
{
IWorkItem workItem = Substitute.For <IWorkItem>();
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For <IWorkItemWaiterEntry>();
workItemWaiterEntry.TrySignal(workItem).Returns(true);
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For <IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(1);
workItemWaiterEntryStack.Pop().Returns(workItemWaiterEntry);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
workItemQueue.Enqueue(workItem);
Assert.AreEqual(0, workItemQueue.Count);
}
public void DequeueShouldReturnQueuedWorkItemWhenTheWaiterIsNotTimedOut()
{
IWorkItem workItem = Substitute.For <IWorkItem>();
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000);
new Thread(
() =>
{
Thread.Sleep(200);
workItemQueue.Enqueue(workItem);
}).Start();
Assert.AreEqual(workItem, workItemQueue.Dequeue());
Assert.AreEqual(0, workItemQueue.Count);
Assert.AreEqual(0, workItemQueue.WorkItemWaiterEntryStack.Count);
}
public void EnqueueShouldAddWorkItemToQueueWhenAllWaitersTimedOut()
{
Stack <IWorkItemWaiterEntry> workItemWaiterEntries = new Stack <IWorkItemWaiterEntry>();
workItemWaiterEntries.Push(CreateNotSignalableWorkItemWaiterEntry());
workItemWaiterEntries.Push(CreateNotSignalableWorkItemWaiterEntry());
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For <IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(x => workItemWaiterEntries.Count);
workItemWaiterEntryStack.Pop().Returns(x => workItemWaiterEntries.Pop());
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For <IWorkItem>();
workItemQueue.Enqueue(workItem);
Assert.AreEqual(1, workItemQueue.Count);
}
public void DequeueShouldReturnNullWhenTheWaiterIsTimedOut()
{
IWorkItem workItem = Substitute.For <IWorkItem>();
AutoResetEvent autoResetEvent = new AutoResetEvent(false);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 300);
new Thread(
() =>
{
Thread.Sleep(1000);
workItemQueue.Enqueue(workItem);
autoResetEvent.Set();
}).Start();
Assert.AreEqual(null, workItemQueue.Dequeue());
autoResetEvent.WaitOne();
Assert.AreEqual(1, workItemQueue.Count);
Assert.AreEqual(0, workItemQueue.WorkItemWaiterEntryStack.Count);
}
public void EnqueueShouldThrowExceptionWhenItIsCalledAfterShutDown()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 300);
workItemQueue.ShutDown();
Assert.Throws<LaboThreadingException>(() => workItemQueue.Enqueue(Substitute.For<IWorkItem>()));
}
public void DequeueShouldReturnNullWhenTheWaiterIsTimedOut()
{
IWorkItem workItem = Substitute.For<IWorkItem>();
AutoResetEvent autoResetEvent = new AutoResetEvent(false);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 300);
new Thread(
() =>
{
Thread.Sleep(1000);
workItemQueue.Enqueue(workItem);
autoResetEvent.Set();
}).Start();
Assert.AreEqual(null, workItemQueue.Dequeue());
autoResetEvent.WaitOne();
Assert.AreEqual(1, workItemQueue.Count);
Assert.AreEqual(0, workItemQueue.WorkItemWaiterEntryStack.Count);
}
public void EnqueueShouldThrowExceptionWhenWorkItemIsEmpty()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, Substitute.For<IWorkItemWaiterEntryStack>());
Assert.Throws<ArgumentNullException>(() => workItemQueue.Enqueue(null));
}
public void EnqueueTrySignalMethodShouldBeCalledWhenWaitingStackIsNotEmpty()
{
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For<IWorkItemWaiterEntry>();
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For<IWorkItemWaiterEntryStack>();
int count = 1;
workItemWaiterEntryStack.Count.Returns(x => count);
workItemWaiterEntryStack.Pop().Returns(
x =>
{
if (count == 1)
{
count = 0;
return workItemWaiterEntry;
}
return null;
});
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For<IWorkItem>();
workItemQueue.Enqueue(workItem);
workItemWaiterEntry.Received(1).TrySignal(workItem);
}
public void DequeueShouldReturnQueuedWorkItemWhenQueueIsNotEmpty()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000);
IWorkItem workItemFirst = Substitute.For<IWorkItem>();
IWorkItem workItemLast = Substitute.For<IWorkItem>();
workItemQueue.Enqueue(workItemFirst);
workItemQueue.Enqueue(workItemLast);
Assert.AreEqual(workItemFirst, workItemQueue.Dequeue());
Assert.AreEqual(workItemLast, workItemQueue.Dequeue());
}
public void ShutDownShouldNotBlockDequeueWhenThereAreWorkItemsInTheQueue()
{
ManualResetEvent manualResetEvent = new ManualResetEvent(false);
const int workItemWaiterTimeOutInMilliSeconds = 1000;
WorkItemQueue workItemQueue = new WorkItemQueue(workItemWaiterTimeOutInMilliSeconds);
IWorkItem workItem = Substitute.For<IWorkItem>();
workItemQueue.Enqueue(workItem);
new Thread(
() =>
{
manualResetEvent.Set();
manualResetEvent.Reset();
manualResetEvent.WaitOne(300);
IWorkItem dequeuedWorkItem = workItemQueue.Dequeue();
Assert.AreEqual(workItem, dequeuedWorkItem);
}).Start();
manualResetEvent.WaitOne(300);
workItemQueue.ShutDown();
manualResetEvent.Set();
}
public void EnqueueShouldThrowExceptionWhenWorkItemIsEmpty()
{
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, Substitute.For <IWorkItemWaiterEntryStack>());
Assert.Throws <ArgumentNullException>(() => workItemQueue.Enqueue(null));
}
public void DequeueShouldReturnQueuedWorkItemWhenTheWaiterIsNotTimedOut()
{
IWorkItem workItem = Substitute.For<IWorkItem>();
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000);
new Thread(
() =>
{
Thread.Sleep(200);
workItemQueue.Enqueue(workItem);
}).Start();
Assert.AreEqual(workItem, workItemQueue.Dequeue());
Assert.AreEqual(0, workItemQueue.Count);
Assert.AreEqual(0, workItemQueue.WorkItemWaiterEntryStack.Count);
}
/// <summary>
/// Enqueues a workitem and notifies the controller mainthread that something needs to be done.
/// </summary>
/// <param name="workItem">The workitem to enqueue.</param>
/// <returns>The enqueued workitem.</returns>
public void EnqueueWorkItem(WorkItem workItem)
{
lock (_syncObj)
_workItemQueue.Enqueue(workItem);
_playerThreadNotifyEvent.Set();
}
public void EnqueueTrySignalMethodShouldNotBeCalledWhenWaitingStackIsEmpty()
{
IWorkItemWaiterEntry workItemWaiterEntry = Substitute.For<IWorkItemWaiterEntry>();
IWorkItemWaiterEntryStack workItemWaiterEntryStack = Substitute.For<IWorkItemWaiterEntryStack>();
workItemWaiterEntryStack.Count.Returns(0);
WorkItemQueue workItemQueue = new WorkItemQueue(1 * 1000, workItemWaiterEntryStack);
IWorkItem workItem = Substitute.For<IWorkItem>();
workItemQueue.Enqueue(workItem);
workItemWaiterEntry.DidNotReceiveWithAnyArgs().TrySignal(workItem);
}
