System.Net.Sockets.Tests.TcpClientTest.Connect_DnsEndPoint_Success C# (CSharp) Метод

        public void Connect_DnsEndPoint_Success(int mode)
        {
            using (TcpClient client = new TcpClient())
            {
                Assert.False(client.Connected);

                string host = System.Net.Test.Common.Configuration.Sockets.SocketServer.IdnHost;
                int port = System.Net.Test.Common.Configuration.Sockets.SocketServer.Port;

                if (mode == 0)
                {
                    client.Connect(host, port);
                }
                else
                {
                    IPAddress[] addresses = Dns.GetHostAddresses(host);
                    if (mode == 1)
                    {
                        client.Connect(addresses[0], port);
                    }
                    else
                    {
                        client.Connect(addresses, port);
                    }
                }

                Assert.True(client.Connected);
                Assert.NotNull(client.Client);
                Assert.Same(client.Client, client.Client);

                using (NetworkStream s = client.GetStream())
                {
                    byte[] getRequest = Encoding.ASCII.GetBytes("GET / HTTP/1.1\r\n\r\n");
                    s.Write(getRequest, 0, getRequest.Length);
                    Assert.NotEqual(-1, s.ReadByte()); // just verify we successfully get any data back
                }
            }
        }