public void TestJoinWithFaultedTarget()
{
bool passed = true;
var nonGreedyOptions = new GroupingDataflowBlockOptions {
Greedy = false
};
var goodSource = new ThrowerBlock();
var badSource = new ThrowerBlock();
var join = new JoinBlock <ThrowOn, ThrowOn>(nonGreedyOptions);
var terminator = new ActionBlock <Tuple <ThrowOn, ThrowOn> >(xy => { Console.WriteLine("Terminator: We shouldn't be here - FAILED"); passed = false; });
// Pre-load the sources
goodSource.Post(ThrowOn.TryReceive); // Will not throw in this test
badSource.Post(ThrowOn.ConsumeMessage);
// Link
join.LinkTo(terminator);
goodSource.LinkTo(join.Target1);
badSource.LinkTo(join.Target2);
Task.Delay(500).Wait();
// The Join must be faulted now
passed &= TaskHasFaulted(join.Completion, "ConsumeMessage");
Assert.True(passed, string.Format("{0}", passed ? "Passed" : "FAILED"));
}
private static bool TestReleaseOnReserveException(bool linkBadFirst)
{
bool passed = true;
// Bad source throws on ReserveMessage
var badSource = new ThrowerBlock();
badSource.Post(ThrowOn.ReserveMessage);
// Good source never throws
var goodSource = new ThrowerBlock();
goodSource.Post(ThrowOn.TryReceive); // Any value unrelated to the offer/consume protocol
var batch = new BatchBlock <ThrowOn>(2, new GroupingDataflowBlockOptions {
Greedy = false
});
// Each linking will offer a message
if (linkBadFirst)
{
badSource.LinkTo(batch);
goodSource.LinkTo(batch);
}
else
{
goodSource.LinkTo(batch);
badSource.LinkTo(batch);
}
// The batch must be faulted
Task.Delay(1).Wait();
Assert.True(TaskHasFaulted(batch.Completion, "ReserveMessage"));
// The good message must not be Reserved
Task.Delay(1).Wait();
Assert.True(goodSource.LastOperation != ThrowOn.ReserveMessage);
Assert.True(passed, string.Format("Good message not reserved ({0}) - {1}", goodSource.LastOperation, passed ? "Passed" : "FAILED"));
Assert.True(passed, string.Format("{0}", passed ? "Passed" : "FAILED"));
return(passed);
}
private static bool TestReleaseOnReserveException(bool linkBadFirst)
{
bool passed = true;
// Bad source throws on ReserveMessage
var badSource = new ThrowerBlock();
badSource.Post(ThrowOn.ReserveMessage);
// Good source never throws
var goodSource = new ThrowerBlock();
goodSource.Post(ThrowOn.TryReceive); // Any value unrelated to the offer/consume protocol
var batch = new BatchBlock<ThrowOn>(2, new GroupingDataflowBlockOptions { Greedy = false });
// Each linking will offer a message
if (linkBadFirst)
{
badSource.LinkTo(batch);
goodSource.LinkTo(batch);
}
else
{
goodSource.LinkTo(batch);
badSource.LinkTo(batch);
}
// The batch must be faulted
Task.Delay(1).Wait();
Assert.True(TaskHasFaulted(batch.Completion, "ReserveMessage"));
// The good message must not be Reserved
Task.Delay(1).Wait();
Assert.True(goodSource.LastOperation != ThrowOn.ReserveMessage);
Assert.True(passed, string.Format("Good message not reserved ({0}) - {1}", goodSource.LastOperation, passed ? "Passed" : "FAILED"));
Assert.True(passed, string.Format("{0}", passed ? "Passed" : "FAILED"));
return passed;
}