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         [Category ("RequiresBSDSockets")]
  25         public class TcpClientTest
  26         {
  27
  28                 /// <summary>
  29                 /// Tests the TcpClient object
  30                 /// (from System.Net.Sockets)
  31                 /// </summary>
  32                 [Test]
  33                 public void TcpClient()
  34                 {
  35                         // set up a listening Socket
  36                         Socket lSock = new Socket(AddressFamily.InterNetwork,
  37                                 SocketType.Stream, ProtocolType.Tcp);
  38
  39                         var port = NetworkHelpers.FindFreePort ();
  40                         lSock.Bind(new IPEndPoint(IPAddress.Any, port));
  41                         lSock.Listen(-1);
  42
  43
  44                         // connect to it with a TcpClient
  45                         TcpClient outClient = new TcpClient("localhost", port);
  46                         Socket inSock = lSock.Accept();
  47
  48
  49                         // now try exchanging data
  50                         NetworkStream stream = outClient.GetStream();
  51
  52                         const int len = 1024;
  53                         byte[] outBuf = new Byte[len];
  54                         for (int i=0; i<len; i++)
  55                         {
  56                                 outBuf[i] = (byte)(i % 256);
  57                         }
  58
  59                         // send it
  60                         stream.Write(outBuf,0,len);
  61
  62                         // and see if it comes back
  63                         byte[] inBuf = new Byte[len];
  64                         int ret = inSock.Receive(inBuf, 0, len, 0);
  65                         Assert.IsTrue (ret != 0);
  66
  67                         for (int i=0; i<len; i++)
  68                         {
  69                                 Assert.IsTrue (inBuf[i] == outBuf[i]);
  70                         }
  71
  72                         // tidy up
  73                         inSock.Close();
  74                         outClient.Close();
  75                         lSock.Close();
  76
  77                 }
  78
  79                 [Test] // bug #81105
  80                 public void CloseTest ()
  81                 {
  82                         var port = NetworkHelpers.FindFreePort ();
  83                         IPEndPoint localEP = new IPEndPoint (IPAddress.Loopback, port);
  84                         using (SocketResponder sr = new SocketResponder (localEP, s => CloseRequestHandler (s))) {
  85                                 TcpClient tcpClient = new TcpClient (IPAddress.Loopback.ToString (), port);
  86                                 NetworkStream ns = tcpClient.GetStream ();
  87                                 Assert.IsNotNull (ns, "#A1");
  88                                 Assert.AreEqual (0, tcpClient.Available, "#A2");
  89                                 Assert.IsTrue (tcpClient.Connected, "#A3");
  90                                 // Assert.IsFalse (tcpClient.ExclusiveAddressUse, "#A4");
  91                                 tcpClient.Close ();
  92                                 Assert.IsNotNull (tcpClient.Client, "#A5");
  93                                 try {
  94                                         int available = tcpClient.Available;
  95                                         Assert.Fail ("#A6: " + available);
  96                                 } catch (ObjectDisposedException) {
  97                                 }
  98                                 Assert.IsFalse (tcpClient.Connected, "#A7");
  99                                 // not supported on linux
 100                                 /*
 101                                 try {
 102                                         bool exclusive = tcpClient.ExclusiveAddressUse;
 103                                         Assert.Fail ("#A8: " + exclusive);
 104                                 } catch (ObjectDisposedException) {
 105                                 }
 106                                 */
 107                         }
 108
 109                         using (SocketResponder sr = new SocketResponder (localEP, s => CloseRequestHandler (s))) {
 110                                 TcpClient tcpClient = new TcpClient (IPAddress.Loopback.ToString (), port);
 111                                 Assert.AreEqual (0, tcpClient.Available, "#B1");
 112                                 Assert.IsTrue (tcpClient.Connected, "#B2");
 113                                 // Assert.IsFalse (tcpClient.ExclusiveAddressUse, "#B3");
 114                                 tcpClient.Close ();
 115                                 Assert.IsNull (tcpClient.Client, "#B4");
 116                                 try {
 117                                         int available = tcpClient.Available;
 118                                         Assert.Fail ("#B5: " + available);
 119                                 } catch (NullReferenceException) {
 120                                 }
 121                                 try {
 122                                         bool connected = tcpClient.Connected;
 123                                         Assert.Fail ("#B6: " + connected);
 124                                 } catch (NullReferenceException) {
 125                                 }
 126                                 // not supported on linux
 127                                 /*
 128                                 try {
 129                                         bool exclusive = tcpClient.ExclusiveAddressUse;
 130                                         Assert.Fail ("#B7: " + exclusive);
 131                                 } catch (NullReferenceException) {
 132                                 }
 133                                 */
 134                         }
 135                 }
 136
 137                 byte [] CloseRequestHandler (Socket socket)
 138                 {
 139                         return new byte [0];
 140                 }
 141
 142                 [Test]
 143                 [ExpectedException (typeof(ArgumentNullException))]
 144                 public void ConnectMultiNull ()
 145                 {
 146                         TcpClient client = new TcpClient ();
 147                         IPAddress[] ipAddresses = null;
 148
 149                         client.Connect (ipAddresses, 1234);
 150                 }
 151
 152                 [Test]
 153                 public void ConnectMultiAny ()
 154                 {
 155                         TcpClient client = new TcpClient ();
 156                         IPAddress[] ipAddresses = new IPAddress[1];
 157
 158                         ipAddresses[0] = IPAddress.Any;
 159
 160                         try {
 161                                 client.Connect (ipAddresses, 1234);
 162                                 Assert.Fail ("ConnectMultiAny #1");
 163                         } catch (SocketException ex) {
 164                                 Assert.AreEqual (10049, ex.ErrorCode, "ConnectMultiAny #2");
 165                         } catch {
 166                                 Assert.Fail ("ConnectMultiAny #3");
 167                         }
 168                 }
 169
 170                 [Test]
 171                 public void ConnectMultiRefused ()
 172                 {
 173                         TcpClient client = new TcpClient ();
 174                         IPAddress[] ipAddresses = new IPAddress[1];
 175
 176                         ipAddresses[0] = IPAddress.Loopback;
 177
 178                         try {
 179                                 client.Connect (ipAddresses, 1234);
 180                                 Assert.Fail ("ConnectMultiRefused #1");
 181                         } catch (SocketException ex) {
 182                                 Assert.AreEqual (10061, ex.ErrorCode, "ConnectMultiRefused #2");
 183                         } catch {
 184                                 Assert.Fail ("ConnectMultiRefused #3");
 185                         }
 186                 }
 187         }
 188 }