public void ShouldNotLeaveWaitersInQueueIfOperationIsCancelledAfterCallingRelease()
{
var @lock = new FifoSemaphore(1);
@lock.Acquire(CancellationToken.None);
try
{
var cts = new CancellationTokenSource();
cts.Cancel();
Assert.Throws <OperationCanceledException>(() => @lock.Acquire(cts.Token));
Assert.Empty(@lock._waitQueue);
cts = new CancellationTokenSource();
@lock.ForTestingPurposesOnly().JustBeforeAddingToWaitQueue += () => cts.Cancel();
Assert.Throws <OperationCanceledException>(() => @lock.Acquire(cts.Token));
Assert.Equal(1, @lock._waitQueue.Count);
Assert.True(@lock._waitQueue.First().IsCancelled);
}
finally
{
@lock.Release();
}
Assert.Empty(@lock._waitQueue);
}
public void ShouldNotLeaveWaitersInQueueIfOperationIsCancelled()
{
var @lock = new FifoSemaphore(1);
@lock.Acquire(CancellationToken.None);
var cts = new CancellationTokenSource();
cts.Cancel();
Assert.Throws <OperationCanceledException>(() => @lock.Acquire(cts.Token));
Assert.Empty(@lock._waitQueue);
cts = new CancellationTokenSource();
@lock.ForTestingPurposesOnly().JustBeforeAddingToWaitQueue += () => cts.Cancel();
Assert.Throws <OperationCanceledException>(() => @lock.Acquire(cts.Token));
Assert.Empty(@lock._waitQueue);
}