public void CancellingExecution(AsyncWorker asyncWorker, DoWorkEventHandler worker)
{
if (this.log.IsDebugEnabled)
{
this.log.Debug(string.Format(
CultureInfo.InvariantCulture,
"{0} cancels asynchronous operation {1}.{2}()",
asyncWorker,
worker.Method.DeclaringType.FullName,
worker.Method.Name));
}
}
public void StartedExecution(AsyncWorker asyncWorker, DoWorkEventHandler worker, object argument)
{
if (this.log.IsDebugEnabled)
{
this.log.Debug(string.Format(
CultureInfo.InvariantCulture,
"{0} executes asynchronous operation {1}.{2}({3})",
asyncWorker,
worker.Method.DeclaringType.FullName,
worker.Method.Name,
argument));
}
}
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 ExecutesAsyncOperation()
{
AutoResetEvent go = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
DoWorkEventHandler worker = delegate
{
go.WaitOne();
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync();
go.Set();
var finished = workerExecuted.WaitOne(TimeOut);
finished.Should().BeTrue("worker should execute.");
}
public void PassesExceptionThrownByWorkerMethodToGlobalExceptionHandler_WhenNoCompletedHandlerIsSpecified()
{
AppDomain.CurrentDomain.UnhandledException += this.UnhandledException;
DoWorkEventHandler worker = delegate
{
throw new InvalidOperationException("test");
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync();
var receivedException = this.caughtExceptionSignal.WaitOne(TimeOut);
receivedException.Should().BeTrue("exception should be caught");
this.caughtException.Should().BeOfType <AsyncWorkerException>();
AppDomain.CurrentDomain.UnhandledException -= this.UnhandledException;
}
public void ExecutesAsyncOperation()
{
AutoResetEvent go = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
DoWorkEventHandler worker = delegate
{
go.WaitOne();
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync();
go.Set();
var finished = workerExecuted.WaitOne(TimeOut);
finished.Should().BeTrue("worker should execute.");
}
public void ExecutesAsyncOperationWithArguments()
{
AutoResetEvent go = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
const string Argument = "test";
string receivedArgument = null;
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
receivedArgument = (string)e.Argument;
go.WaitOne();
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync(Argument);
go.Set();
workerExecuted.WaitOne(TimeOut);
receivedArgument.Should().Be(Argument);
}
public void ExecutesAsyncOperationWithArguments()
{
AutoResetEvent go = new AutoResetEvent(false);
AutoResetEvent workerExecuted = new AutoResetEvent(false);
const string Argument = "test";
string receivedArgument = null;
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
receivedArgument = (string)e.Argument;
go.WaitOne();
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync(Argument);
go.Set();
workerExecuted.WaitOne(TimeOut);
receivedArgument.Should().Be(Argument);
}
/// <summary>
/// Called when an operation reports progress.
/// </summary>
/// <param name="asyncWorker">The asynchronous worker.</param>
/// <param name="worker">The worker.</param>
/// <param name="progress">The progress.</param>
/// <param name="userState">State of the user.</param>
public void ReportProgress(AsyncWorker asyncWorker, DoWorkEventHandler worker, ProgressChangedEventHandler progress, object userState)
{
if (this.log.IsDebugEnabled)
{
this.log.Debug(string.Format(
CultureInfo.InvariantCulture,
"{0} reports progress for operation {1}.{2}()",
asyncWorker,
worker.Method.DeclaringType.FullName,
worker.Method.Name));
}
}
private void LogOperationCompletedWithException(AsyncWorker asyncWorker, DoWorkEventHandler worker, Exception exception)
{
this.log.Debug(string.Format(
CultureInfo.InvariantCulture,
"{0} completes asynchronous operation {1}.{2}() with exception = {3}",
asyncWorker,
worker.Method.DeclaringType.FullName,
worker.Method.Name,
exception));
}
/// <summary>
/// Called when an operation was completed.
/// </summary>
/// <param name="asyncWorker">The asynchronous worker.</param>
/// <param name="worker">The worker.</param>
/// <param name="completed">The completed handler.</param>
/// <param name="runWorkerCompletedEventArgs">The <see cref="System.ComponentModel.RunWorkerCompletedEventArgs"/> instance containing the event data.</param>
public void CompletedExecution(AsyncWorker asyncWorker, DoWorkEventHandler worker, RunWorkerCompletedEventHandler completed, RunWorkerCompletedEventArgs runWorkerCompletedEventArgs)
{
if (this.log.IsDebugEnabled)
{
if (runWorkerCompletedEventArgs.Error == null)
{
this.LogOperationCompletedWithoutException(asyncWorker, worker);
}
else
{
this.LogOperationCompletedWithException(asyncWorker, worker, runWorkerCompletedEventArgs.Error);
}
}
}
public void ExecutesCompletedHandler()
{
AutoResetEvent workerExecuted = new AutoResetEvent(false);
const int Result = 3;
Exception receivedException = new Exception();
int receivedResult = 0;
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
e.Result = Result;
};
RunWorkerCompletedEventHandler completed = delegate(object sender, RunWorkerCompletedEventArgs e)
{
receivedException = e.Error;
receivedResult = (int)e.Result;
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker, completed);
testee.RunWorkerAsync();
workerExecuted.WaitOne(TimeOut);
receivedException.Should().BeNull();
receivedResult.Should().Be(Result);
}
public void CanNotifyAboutProgress()
{
AutoResetEvent workerExecuted = new AutoResetEvent(false);
DoWorkEventHandler worker = delegate(object sender, DoWorkEventArgs e)
{
AsyncWorker genericWorker = (AsyncWorker)sender;
genericWorker.WorkerReportsProgress = true;
for (int i = 0; i <= 100; i += 10)
{
genericWorker.ReportProgress(i, null);
}
};
int count = 0;
ProgressChangedEventHandler progress = (sender, e) =>
{
count++;
if (count == 10)
{
workerExecuted.Set();
}
};
AsyncWorker testee = new AsyncWorker(worker, progress, null);
testee.RunWorkerAsync();
workerExecuted.WaitOne(TimeOut).Should().BeTrue();
}
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 PassesExceptionThrownByWorkerMethodToCompletedEventHandler()
{
AppDomain.CurrentDomain.UnhandledException += this.UnhandledException;
AutoResetEvent workerExecuted = new AutoResetEvent(false);
var exception = new InvalidOperationException("test");
Exception receivedException = null;
DoWorkEventHandler worker = delegate
{
throw exception;
};
RunWorkerCompletedEventHandler completed = delegate(object sender, RunWorkerCompletedEventArgs e)
{
receivedException = e.Error;
workerExecuted.Set();
};
AsyncWorker testee = new AsyncWorker(worker, completed);
testee.RunWorkerAsync();
workerExecuted.WaitOne(TimeOut);
this.caughtException.Should().BeNull("no exception should be handled globally.");
receivedException.Should().BeSameAs(exception);
AppDomain.CurrentDomain.UnhandledException -= this.UnhandledException;
}
public void PassesExceptionThrownByWorkerMethodToGlobalExceptionHandler_WhenNoCompletedHandlerIsSpecified()
{
AppDomain.CurrentDomain.UnhandledException += this.UnhandledException;
DoWorkEventHandler worker = delegate
{
throw new InvalidOperationException("test");
};
AsyncWorker testee = new AsyncWorker(worker);
testee.RunWorkerAsync();
var receivedException = this.caughtExceptionSignal.WaitOne(TimeOut);
receivedException.Should().BeTrue("exception should be caught");
this.caughtException.Should().BeOfType<AsyncWorkerException>();
AppDomain.CurrentDomain.UnhandledException -= this.UnhandledException;
}
