public void GroupBy_must_abort_onError_from_upstream_when_substreams_are_running()
{
this.AssertAllStagesStopped(() =>
{
var publisherProbe = TestPublisher.CreateManualProbe <int>(this);
var publisher =
Source.FromPublisher(publisherProbe)
.GroupBy(2, x => x % 2)
.Lift(x => x % 2)
.RunWith(Sink.AsPublisher <Tuple <int, Source <int, NotUsed> > >(false), Materializer);
var subscriber = TestSubscriber.CreateManualProbe <Tuple <int, Source <int, NotUsed> > >(this);
publisher.Subscribe(subscriber);
var upstreamSubscription = publisherProbe.ExpectSubscription();
var downstreamSubscription = subscriber.ExpectSubscription();
downstreamSubscription.Request(100);
upstreamSubscription.SendNext(1);
var substream = subscriber.ExpectNext().Item2;
var substreamPuppet = new StreamPuppet(substream.RunWith(Sink.AsPublisher <int>(false), Materializer), this);
substreamPuppet.Request(1);
substreamPuppet.ExpectNext(1);
var ex = new TestException("test");
upstreamSubscription.SendError(ex);
substreamPuppet.ExpectError(ex);
subscriber.ExpectError().Should().Be(ex);
}, Materializer);
}
public void GroupBy_must_fail_when_exceeding_maxSubstreams()
{
this.AssertAllStagesStopped(() =>
{
var f = Flow.Create <int>().GroupBy(1, x => x % 2).PrefixAndTail(0).MergeSubstreams();
var t = ((Flow <int, Tuple <IImmutableList <int>, Source <int, NotUsed> >, NotUsed>)f)
.RunWith(TestSource.SourceProbe <int>(this), TestSink.SinkProbe <Tuple <IImmutableList <int>, Source <int, NotUsed> > >(this), Materializer);
var up = t.Item1;
var down = t.Item2;
down.Request(2);
up.SendNext(1);
var first = down.ExpectNext();
var s1 = new StreamPuppet(first.Item2.RunWith(Sink.AsPublisher <int>(false), Materializer), this);
s1.Request(1);
s1.ExpectNext(1);
up.SendNext(2);
var ex = down.ExpectError();
ex.Message.Should().Contain("too many substreams");
s1.ExpectError(ex);
}, Materializer);
}
public void SplitWhen_must_fail_stream_when_SplitWhen_function_throws()
{
this.AssertAllStagesStopped(() =>
{
var publisherProbe = this.CreateManualPublisherProbe <int>();
var ex = new TestException("test");
var publisher = Source.FromPublisher(publisherProbe).SplitWhen(i =>
{
if (i == 3)
{
throw ex;
}
return(i % 3 == 0);
}).Lift().RunWith(Sink.AsPublisher <Source <int, NotUsed> >(false), Materializer);
var subscriber = this.CreateManualSubscriberProbe <Source <int, NotUsed> >();
publisher.Subscribe(subscriber);
var upstreamSubscription = publisherProbe.ExpectSubscription();
var downstreamSubscription = subscriber.ExpectSubscription();
downstreamSubscription.Request(100);
upstreamSubscription.SendNext(1);
var substream = subscriber.ExpectNext();
var substreamPuppet = new StreamPuppet(substream.RunWith(Sink.AsPublisher <int>(false), Materializer), this);
substreamPuppet.Request(10);
substreamPuppet.ExpectNext(1);
upstreamSubscription.SendNext(2);
substreamPuppet.ExpectNext(2);
upstreamSubscription.SendNext(3);
subscriber.ExpectError().Should().Be(ex);
substreamPuppet.ExpectError(ex);
upstreamSubscription.ExpectCancellation();
}, Materializer);
}
public void SplitAfter_must_fail_stream_when_SplitAfter_function_throws()
{
this.AssertAllStagesStopped(() =>
{
var publisherProbe = TestPublisher.CreateManualProbe<int>(this);
var ex = new TestException("test");
var publisher = Source.FromPublisher(publisherProbe).SplitAfter(i =>
{
if (i == 3)
throw ex;
return i%3 == 0;
}).Lift().RunWith(Sink.AsPublisher<Source<int, NotUsed>>(false), Materializer);
var subscriber = TestSubscriber.CreateManualProbe<Source<int, NotUsed>>(this);
publisher.Subscribe(subscriber);
var upstreamSubscription = publisherProbe.ExpectSubscription();
var downstreamSubscription = subscriber.ExpectSubscription();
downstreamSubscription.Request(100);
upstreamSubscription.SendNext(1);
var substream = subscriber.ExpectNext();
var substreamPuppet = new StreamPuppet(substream.RunWith(Sink.AsPublisher<int>(false), Materializer), this);
substreamPuppet.Request(10);
substreamPuppet.ExpectNext(1);
upstreamSubscription.SendNext(2);
substreamPuppet.ExpectNext(2);
upstreamSubscription.SendNext(3);
subscriber.ExpectError().Should().Be(ex);
substreamPuppet.ExpectError(ex);
upstreamSubscription.ExpectCancellation();
}, Materializer);
}
public void GroupBy_must_fail_when_exceeding_maxSubstreams()
{
this.AssertAllStagesStopped(() =>
{
var f = Flow.Create<int>().GroupBy(1, x => x%2).PrefixAndTail(0).MergeSubstreams();
var t = ((Flow<int, Tuple<IImmutableList<int>, Source<int, NotUsed>>, NotUsed>) f)
.RunWith(this.SourceProbe<int>(), this.SinkProbe<Tuple<IImmutableList<int>, Source<int, NotUsed>>>(), Materializer);
var up = t.Item1;
var down = t.Item2;
down.Request(2);
up.SendNext(1);
var first = down.ExpectNext();
var s1 = new StreamPuppet(first.Item2.RunWith(Sink.AsPublisher<int>(false), Materializer), this);
s1.Request(1);
s1.ExpectNext(1);
up.SendNext(2);
var ex = down.ExpectError();
ex.Message.Should().Contain("too many substreams");
s1.ExpectError(ex);
}, Materializer);
}
public void GroupBy_must_fail_stream_when_GroupBy_function_throws()
{
this.AssertAllStagesStopped(() =>
{
var publisherProbe = this.CreateManualPublisherProbe<int>();
var ex = new TestException("test");
var publisher = Source.FromPublisher(publisherProbe).GroupBy(2, i =>
{
if (i == 2)
throw ex;
return i%2;
})
.Lift(x => x%2)
.RunWith(Sink.AsPublisher<Tuple<int, Source<int, NotUsed>>>(false), Materializer);
var subscriber = this.CreateManualSubscriberProbe<Tuple<int, Source<int, NotUsed>>>();
publisher.Subscribe(subscriber);
var upstreamSubscription = publisherProbe.ExpectSubscription();
var downstreamSubscription = subscriber.ExpectSubscription();
downstreamSubscription.Request(100);
upstreamSubscription.SendNext(1);
var substream = subscriber.ExpectNext().Item2;
var substreamPuppet = new StreamPuppet(substream.RunWith(Sink.AsPublisher<int>(false), Materializer), this);
substreamPuppet.Request(1);
substreamPuppet.ExpectNext(1);
upstreamSubscription.SendNext(2);
subscriber.ExpectError().Should().Be(ex);
substreamPuppet.ExpectError(ex);
upstreamSubscription.ExpectCancellation();
}, Materializer);
}
public void GroupBy_must_abort_onError_from_upstream_when_substreams_are_running()
{
this.AssertAllStagesStopped(() =>
{
var publisherProbe = this.CreateManualPublisherProbe<int>();
var publisher =
Source.FromPublisher(publisherProbe)
.GroupBy(2, x => x % 2)
.Lift(x => x % 2)
.RunWith(Sink.AsPublisher<Tuple<int, Source<int, NotUsed>>>(false), Materializer);
var subscriber = this.CreateManualSubscriberProbe<Tuple<int, Source<int, NotUsed>>>();
publisher.Subscribe(subscriber);
var upstreamSubscription = publisherProbe.ExpectSubscription();
var downstreamSubscription = subscriber.ExpectSubscription();
downstreamSubscription.Request(100);
upstreamSubscription.SendNext(1);
var substream = subscriber.ExpectNext().Item2;
var substreamPuppet = new StreamPuppet(substream.RunWith(Sink.AsPublisher<int>(false), Materializer), this);
substreamPuppet.Request(1);
substreamPuppet.ExpectNext(1);
var ex = new TestException("test");
upstreamSubscription.SendError(ex);
substreamPuppet.ExpectError(ex);
subscriber.ExpectError().Should().Be(ex);
}, Materializer);
}
