public void CanCancelOperation()
{
AutoResetEvent workerStarted = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
AutoResetEvent workerCancelled = new AutoResetEvent(false);
AutoResetEvent allowTerminating = new AutoResetEvent(false);
bool?cancelled = null;
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
AsyncWorker genericWorker = (AsyncWorker)sender;
genericWorker.WorkerSupportsCancellation = true;
workerStarted.Set();
while (!genericWorker.CancellationPending)
{
Thread.Sleep(1);
}
e.Cancel = true;
workerCancelled.Set();
allowTerminating.WaitOne();
};
RunWorkerCompletedEventHandler completed = delegate(object sender, RunWorkerCompletedEventArgs e)
{
cancelled = e.Cancelled;
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker, completed);
testee.RunWorkerAsync();
workerStarted.WaitOne(TimeOut).Should().BeTrue("worker should start.");
testee.CancelAsync();
workerCancelled.WaitOne(TimeOut).Should().BeTrue("worker should cancel.");
allowTerminating.Set();
workerExecuted.WaitOne(TimeOut).Should().BeTrue("worker should execute.");
cancelled.Should().BeTrue("result should reflect canceled state.");
}
public void CanCancelOperation()
{
AutoResetEvent workerStarted = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
AutoResetEvent workerCancelled = new AutoResetEvent(false);
AutoResetEvent allowTerminating = new AutoResetEvent(false);
bool? cancelled = null;
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
AsyncWorker genericWorker = (AsyncWorker)sender;
genericWorker.WorkerSupportsCancellation = true;
workerStarted.Set();
while (!genericWorker.CancellationPending)
{
Thread.Sleep(1);
}
e.Cancel = true;
workerCancelled.Set();
allowTerminating.WaitOne();
};
RunWorkerCompletedEventHandler completed = delegate(object sender, RunWorkerCompletedEventArgs e)
{
cancelled = e.Cancelled;
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker, completed);
testee.RunWorkerAsync();
workerStarted.WaitOne(TimeOut).Should().BeTrue("worker should start.");
testee.CancelAsync();
workerCancelled.WaitOne(TimeOut).Should().BeTrue("worker should cancel.");
allowTerminating.Set();
workerExecuted.WaitOne(TimeOut).Should().BeTrue("worker should execute.");
cancelled.Should().BeTrue("result should reflect canceled state.");
}
