Akka.Streams.Tests.Dsl.FlowDelaySpec.A_Delay_must_deliver_elements_with_delay_for_slow_stream C# (CSharp) Method

        public void A_Delay_must_deliver_elements_with_delay_for_slow_stream()
        {
            this.AssertAllStagesStopped(() =>
            {
                var c = TestSubscriber.CreateManualProbe<int>(this);
                var p = TestPublisher.CreateManualProbe<int>(this);

                Source.FromPublisher(p)
                    .Delay(TimeSpan.FromMilliseconds(300))
                    .To(Sink.FromSubscriber(c))
                    .Run(Materializer);
                var cSub = c.ExpectSubscription();
                var pSub = p.ExpectSubscription();
                cSub.Request(100);
                pSub.SendNext(1);
                c.ExpectNoMsg(TimeSpan.FromMilliseconds(200));
                c.ExpectNext(1);
                pSub.SendNext(2);
                c.ExpectNoMsg(TimeSpan.FromMilliseconds(200));
                c.ExpectNext(2);
                pSub.SendComplete();
                c.ExpectComplete();
            }, Materializer);
        }