System.Net.Sockets.Tests.DualModeConnectionlessReceiveFromAsync.ReceiveFromAsync_Helper C# (CSharp) Метод

        private void ReceiveFromAsync_Helper(IPAddress listenOn, IPAddress connectTo, bool expectedToTimeout = false)
        {
            using (Socket serverSocket = new Socket(SocketType.Dgram, ProtocolType.Udp))
            {
                int port = serverSocket.BindToAnonymousPort(listenOn);

                ManualResetEvent waitHandle = new ManualResetEvent(false);

                SocketAsyncEventArgs args = new SocketAsyncEventArgs();
                args.RemoteEndPoint = new IPEndPoint(listenOn, port);
                args.SetBuffer(new byte[1], 0, 1);
                args.UserToken = waitHandle;
                args.Completed += AsyncCompleted;

                bool async = serverSocket.ReceiveFromAsync(args);
                SocketUdpClient client = new SocketUdpClient(_log, serverSocket, connectTo, port, redundant: !expectedToTimeout);
                if (async && !waitHandle.WaitOne(expectedToTimeout ? TestSettings.FailingTestTimeout : TestSettings.PassingTestTimeout))
                {
                    throw new TimeoutException();
                }

                if (args.SocketError != SocketError.Success)
                {
                    throw new SocketException((int)args.SocketError);
                }

                Assert.Equal(1, args.BytesTransferred);
                Assert.Equal<Type>(args.RemoteEndPoint.GetType(), typeof(IPEndPoint));
                IPEndPoint remoteEndPoint = args.RemoteEndPoint as IPEndPoint;
                Assert.Equal(AddressFamily.InterNetworkV6, remoteEndPoint.AddressFamily);
                Assert.Equal(connectTo.MapToIPv6(), remoteEndPoint.Address);
            }
        }