Akka.Streams.Tests.Dsl.FlowFlattenMergeSpec.A_FlattenMerge_must_cancel_substreams_when_being_cancelled C# (CSharp) Method

        public void A_FlattenMerge_must_cancel_substreams_when_being_cancelled()
        {
            var p1 = TestPublisher.CreateProbe<int>(this);
            var p2 = TestPublisher.CreateProbe<int>(this);

            var sink = Source.From(new[] {Source.FromPublisher(p1), Source.FromPublisher(p2)})
                .MergeMany(5, x => x)
                .RunWith(this.SinkProbe<int>(), Materializer);

            sink.Request(1);
            p1.ExpectRequest();
            p2.ExpectRequest();
            sink.Cancel();
            p1.ExpectCancellation();
            p2.ExpectCancellation();
        }