mcs/class/System/Test/System.Net.Sockets/TcpClientTest.cs

   1 // System.Net.Sockets.TcpClientTest.cs
   2 //
   3 // Authors:
   4 //    Phillip Pearson (pp@myelin.co.nz)
   5 //    Martin Willemoes Hansen (mwh@sysrq.dk)
   6 //
   7 // (C) Copyright 2001 Phillip Pearson (http://www.myelin.co.nz)
   8 // (C) Copyright 2003 Martin Willemoes Hansen
   9 //
  10
  11 using System;
  12 using System.Net;
  13 using System.Net.Sockets;
  14 using NUnit.Framework;
  15
  16 using MonoTests.Helpers;
  17
  18 namespace MonoTests.System.Net.Sockets
  19 {
  20         /// <summary>
  21         /// Tests System.Net.Sockets.TcpClient
  22         /// </summary>
  23         [TestFixture]
  24         public class TcpClientTest
  25         {
  26
  27                 /// <summary>
  28                 /// Tests the TcpClient object
  29                 /// (from System.Net.Sockets)
  30                 /// </summary>
  31                 [Test]
  32                 public void TcpClient()
  33                 {
  34                         // set up a listening Socket
  35                         Socket lSock = new Socket(AddressFamily.InterNetwork,
  36                                 SocketType.Stream, ProtocolType.Tcp);
  37
  38                         var port = NetworkHelpers.FindFreePort ();
  39                         lSock.Bind(new IPEndPoint(IPAddress.Any, port));
  40                         lSock.Listen(-1);
  41
  42
  43                         // connect to it with a TcpClient
  44                         TcpClient outClient = new TcpClient("localhost", port);
  45                         Socket inSock = lSock.Accept();
  46
  47
  48                         // now try exchanging data
  49                         NetworkStream stream = outClient.GetStream();
  50
  51                         const int len = 1024;
  52                         byte[] outBuf = new Byte[len];
  53                         for (int i=0; i<len; i++)
  54                         {
  55                                 outBuf[i] = (byte)(i % 256);
  56                         }
  57
  58                         // send it
  59                         stream.Write(outBuf,0,len);
  60
  61                         // and see if it comes back
  62                         byte[] inBuf = new Byte[len];
  63                         int ret = inSock.Receive(inBuf, 0, len, 0);
  64                         Assert.IsTrue (ret != 0);
  65
  66                         for (int i=0; i<len; i++)
  67                         {
  68                                 Assert.IsTrue (inBuf[i] == outBuf[i]);
  69                         }
  70
  71                         // tidy up
  72                         inSock.Close();
  73                         outClient.Close();
  74                         lSock.Close();
  75
  76                 }
  77
  78                 [Test] // bug #81105
  79                 public void CloseTest ()
  80                 {
  81                         var port = NetworkHelpers.FindFreePort ();
  82                         IPEndPoint localEP = new IPEndPoint (IPAddress.Loopback, port);
  83                         using (SocketResponder sr = new SocketResponder (localEP, s => CloseRequestHandler (s))) {
  84                                 TcpClient tcpClient = new TcpClient (IPAddress.Loopback.ToString (), port);
  85                                 NetworkStream ns = tcpClient.GetStream ();
  86                                 Assert.IsNotNull (ns, "#A1");
  87                                 Assert.AreEqual (0, tcpClient.Available, "#A2");
  88                                 Assert.IsTrue (tcpClient.Connected, "#A3");
  89                                 // Assert.IsFalse (tcpClient.ExclusiveAddressUse, "#A4");
  90                                 tcpClient.Close ();
  91                                 Assert.IsNotNull (tcpClient.Client, "#A5");
  92                                 try {
  93                                         int available = tcpClient.Available;
  94                                         Assert.Fail ("#A6: " + available);
  95                                 } catch (ObjectDisposedException) {
  96                                 }
  97                                 Assert.IsFalse (tcpClient.Connected, "#A7");
  98                                 // not supported on linux
  99                                 /*
 100                                 try {
 101                                         bool exclusive = tcpClient.ExclusiveAddressUse;
 102                                         Assert.Fail ("#A8: " + exclusive);
 103                                 } catch (ObjectDisposedException) {
 104                                 }
 105                                 */
 106                         }
 107
 108                         using (SocketResponder sr = new SocketResponder (localEP, s => CloseRequestHandler (s))) {
 109                                 TcpClient tcpClient = new TcpClient (IPAddress.Loopback.ToString (), port);
 110                                 Assert.AreEqual (0, tcpClient.Available, "#B1");
 111                                 Assert.IsTrue (tcpClient.Connected, "#B2");
 112                                 // Assert.IsFalse (tcpClient.ExclusiveAddressUse, "#B3");
 113                                 tcpClient.Close ();
 114                                 Assert.IsNull (tcpClient.Client, "#B4");
 115                                 try {
 116                                         int available = tcpClient.Available;
 117                                         Assert.Fail ("#B5: " + available);
 118                                 } catch (NullReferenceException) {
 119                                 }
 120                                 try {
 121                                         bool connected = tcpClient.Connected;
 122                                         Assert.Fail ("#B6: " + connected);
 123                                 } catch (NullReferenceException) {
 124                                 }
 125                                 // not supported on linux
 126                                 /*
 127                                 try {
 128                                         bool exclusive = tcpClient.ExclusiveAddressUse;
 129                                         Assert.Fail ("#B7: " + exclusive);
 130                                 } catch (NullReferenceException) {
 131                                 }
 132                                 */
 133                         }
 134                 }
 135
 136                 byte [] CloseRequestHandler (Socket socket)
 137                 {
 138                         return new byte [0];
 139                 }
 140
 141                 [Test]
 142                 [ExpectedException (typeof(ArgumentNullException))]
 143                 public void ConnectMultiNull ()
 144                 {
 145                         TcpClient client = new TcpClient ();
 146                         IPAddress[] ipAddresses = null;
 147
 148                         client.Connect (ipAddresses, 1234);
 149                 }
 150
 151                 [Test]
 152                 public void ConnectMultiAny ()
 153                 {
 154                         TcpClient client = new TcpClient ();
 155                         IPAddress[] ipAddresses = new IPAddress[1];
 156
 157                         ipAddresses[0] = IPAddress.Any;
 158
 159                         try {
 160                                 client.Connect (ipAddresses, 1234);
 161                                 Assert.Fail ("ConnectMultiAny #1");
 162                         } catch (SocketException ex) {
 163                                 Assert.AreEqual (10049, ex.ErrorCode, "ConnectMultiAny #2");
 164                         } catch {
 165                                 Assert.Fail ("ConnectMultiAny #3");
 166                         }
 167                 }
 168
 169                 [Test]
 170                 public void ConnectMultiRefused ()
 171                 {
 172                         TcpClient client = new TcpClient ();
 173                         IPAddress[] ipAddresses = new IPAddress[1];
 174
 175                         ipAddresses[0] = IPAddress.Loopback;
 176
 177                         try {
 178                                 client.Connect (ipAddresses, 1234);
 179                                 Assert.Fail ("ConnectMultiRefused #1");
 180                         } catch (SocketException ex) {
 181                                 Assert.AreEqual (10061, ex.ErrorCode, "ConnectMultiRefused #2");
 182                         } catch {
 183                                 Assert.Fail ("ConnectMultiRefused #3");
 184                         }
 185                 }
 186         }
 187 }