Akka.Streams.Tests.IO.TcpSpec.Outgoing_TCP_stream_must_work_when_client_closes_read_then_client_closes_write C# (CSharp) Method

        public void Outgoing_TCP_stream_must_work_when_client_closes_read_then_client_closes_write()
        {
            this.AssertAllStagesStopped(() =>
            {
                var testData = ByteString.Create(new byte[] { 1, 2, 3, 4, 5 });
                var server = new Server(this);

                var tcpWriteProbe = new TcpWriteProbe(this);
                var tcpReadProbe = new TcpReadProbe(this);
                Source.FromPublisher(tcpWriteProbe.PublisherProbe)
                    .Via(Sys.TcpStream().OutgoingConnection(server.Address))
                    .To(Sink.FromSubscriber(tcpReadProbe.SubscriberProbe))
                    .Run(Materializer);
                var serverConnection = server.WaitAccept();

                // Server can still write
                serverConnection.Write(testData);
                tcpReadProbe.Read(5).ShouldBeEquivalentTo(testData);

                // Close client side read
                tcpReadProbe.TcpReadSubscription.Value.Cancel();

                // Client can still write
                tcpWriteProbe.Write(testData);
                serverConnection.Read(5);
                serverConnection.WaitRead().ShouldBeEquivalentTo(testData);

                // Close client side write
                tcpWriteProbe.Close();

                // Need a write on the server side to detect the close event
                AwaitAssert(() =>
                {
                    serverConnection.Write(testData);
                    serverConnection.ExpectClosed(c=>c.IsErrorClosed, TimeSpan.FromMilliseconds(500));
                }, TimeSpan.FromSeconds(5));

                serverConnection.ExpectTerminated();
            }, Materializer);
        }