public void InvokeFromDifferentThreadShouldFail()
{
bool exceptionThrown = false;
SingleThreadWorker testThread = null;
try
{
var sw = Stopwatch.StartNew();
testThread = new SingleThreadWorker();
testThread.Invoke(new Action(() => { Trace.WriteLine("Test 'Invoke' from delegate"); Thread.Sleep(10000); }), null);
sw.Stop();
Trace.WriteLine(string.Format("Invoke took {0} msec", sw.ElapsedMilliseconds));
}
catch (Exception ex)
{
exceptionThrown = true;
Trace.WriteLine(string.Format("Invoke threw an exception: {0} - {1}", ex.GetType().Name, ex.ToString()));
}
finally
{
if (testThread != null)
{
testThread.Dispose();
}
}
Assert.IsTrue(exceptionThrown, "Invoke from different thread should throw an exception");
}
public void BeginAndEndInvokeShouldSucceed()
{
bool exceptionThrown = false;
SingleThreadWorker testThread = null;
try
{
var sw = Stopwatch.StartNew();
var evt = new ManualResetEventSlim();
testThread = new SingleThreadWorker();
var ar = testThread.BeginInvoke(
new Action(() =>
{
Trace.WriteLine("Test 'BeginInvoke' from delegate");
testThread.Invoke(new Action(() => { Trace.WriteLine("Test 'Invoke' from inner delegate"); Thread.Sleep(1000); }), null);
Thread.Sleep(1000);
testThread.BeginInvoke(new Action(() => { Trace.WriteLine("Test 'BeginInvoke' from inner delegate"); Thread.Sleep(1000); }), null);
Thread.Sleep(1000);
testThread.Send(delegate { Trace.WriteLine("Test 'Send' from inner delegate"); Thread.Sleep(1000); }, null);
Thread.Sleep(1000);
testThread.Post(delegate { Trace.WriteLine("Test 'Post' from inner delegate"); Thread.Sleep(1000); evt.Set(); }, null);
Thread.Sleep(1000);
}), null);
testThread.EndInvoke(ar);
evt.Wait();
sw.Stop();
Trace.WriteLine(string.Format("BeginInvoke/EndInvoke took {0} msec", sw.ElapsedMilliseconds));
}
catch (Exception ex)
{
exceptionThrown = true;
Trace.WriteLine(string.Format("BeginInvoke/EndInvoke threw an exception: {0} - {1}", ex.GetType().Name, ex.ToString()));
}
finally
{
if (testThread != null)
{
testThread.Dispose();
}
}
Assert.IsFalse(exceptionThrown, "BeginInvoke/EndInvoke from same thread should succeed");
}