// throwing a fake OCE(ct) when the ct isn't canceled should produce an AggregateException.
private static bool Bugfix640886_SetOperationsThrowAggregateOnCancelOrDispose_2()
{
bool passed = true;
TestHarness.TestLog("* PlinqCancellationTests.Bugfix640886_SetOperationsThrowAggregateOnCancelOrDispose_2()");
try
{
CancellationTokenSource cs = new CancellationTokenSource();
var plinq = Enumerable.Range(0, 50)
.AsParallel().WithCancellation(cs.Token)
.WithDegreeOfParallelism(1)
#if PFX_LEGACY_3_5
.Union(Enumerable.Range(0, 10).AsParallel().Select <int, int>(x => { throw new OperationCanceledException(); }));
#else
.Union(Enumerable.Range(0, 10).AsParallel().Select <int, int>(x => { throw new OperationCanceledException(cs.Token); }));
#endif
var walker = plinq.GetEnumerator();
while (walker.MoveNext())
{
Thread.Sleep(1);
}
walker.MoveNext();
passed &= TestHarnessAssert.Fail("AggregateException was expected, but no exception occured.");
}
// REPRO 1 -- cancellation
private static bool Bugfix640886_SetOperationsThrowAggregateOnCancelOrDispose_1()
{
bool passed = true;
TestHarness.TestLog("* PlinqCancellationTests.Bugfix640886_SetOperationsThrowAggregateOnCancelOrDispose_1()");
var mre = new ManualResetEvent(false);
var plinq_src =
Enumerable.Range(0, 5000000).Select(x =>
{
if (x == 0)
{
mre.Set();
}
return(x);
});
Task t = null;
try
{
CancellationTokenSource cs = new CancellationTokenSource();
var plinq = plinq_src
.AsParallel().WithCancellation(cs.Token)
.WithDegreeOfParallelism(1)
.Union(Enumerable.Range(0, 10).AsParallel());
var walker = plinq.GetEnumerator();
t = Task.Factory.StartNew(() =>
{
mre.WaitOne();
cs.Cancel();
});
while (walker.MoveNext())
{
Thread.Sleep(1);
var item = walker.Current;
}
walker.MoveNext();
passed &= TestHarnessAssert.Fail("OperationCanceledException was expected, but no exception occured.");
}
catch (OperationCanceledException)
{
//This is expected.
}
catch (Exception e)
{
passed &= TestHarnessAssert.Fail("OperationCanceledException was expected, but a different exception occured.");
TestHarness.TestLog(e.ToString());
}
if (t != null)
{
t.Wait();
}
return(passed);
}
