mcs/class/System/Test/System.Net.WebSockets/ClientWebSocketTest.cs

   1 using System;
   2 using System.Net;
   3 using System.Threading;
   4 using System.Threading.Tasks;
   5 using System.Collections.Generic;
   6 using System.Net.WebSockets;
   7 using System.Reflection;
   8 using System.Text;
   9
  10 using NUnit.Framework;
  11
  12 using MonoTests.Helpers;
  13
  14 namespace MonoTests.System.Net.WebSockets
  15 {
  16         [TestFixture]
  17         public class ClientWebSocketTest
  18         {
  19                 const string EchoServerUrl = "ws://corefx-net.cloudapp.net/WebSocket/EchoWebSocket.ashx";
  20
  21                 ClientWebSocket socket;
  22                 MethodInfo headerSetMethod;
  23                 int Port;
  24
  25                 [SetUp]
  26                 public void Setup ()
  27                 {
  28                         socket = new ClientWebSocket ();
  29                         Port = NetworkHelpers.FindFreePort ();
  30                 }
  31
  32                 HttpListener _listener;
  33                 HttpListener listener {
  34                         get {
  35                                 if (_listener != null)
  36                                         return _listener;
  37
  38                                 var tmp = new HttpListener ();
  39                                 tmp.Prefixes.Add ("http://localhost:" + Port + "/");
  40                                 tmp.Start ();
  41                                 return _listener = tmp;
  42                         }
  43                 }
  44
  45                 [TearDown]
  46                 public void Teardown ()
  47                 {
  48                         if (_listener != null) {
  49                                 _listener.Stop ();
  50                                 _listener = null;
  51                         }
  52                         if (socket != null) {
  53                                 if (socket.State == WebSocketState.Open)
  54                                         socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (2000);
  55                                 socket.Dispose ();
  56                         }
  57                 }
  58
  59                 [Test]
  60                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
  61                 public void ServerHandshakeReturnCrapStatusCodeTest ()
  62                 {
  63                         // On purpose,
  64                         #pragma warning disable 4014
  65                         HandleHttpRequestAsync ((req, resp) => resp.StatusCode = 418);
  66                         #pragma warning restore 4014
  67                         try {
  68                                 Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
  69                         } catch (AggregateException e) {
  70                                 AssertWebSocketException (e, WebSocketError.Success, typeof (WebException));
  71                                 return;
  72                         }
  73                         Assert.Fail ("Should have thrown");
  74                 }
  75
  76                 [Test]
  77                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
  78                 public void ServerHandshakeReturnWrongUpgradeHeader ()
  79                 {
  80                         #pragma warning disable 4014
  81                         HandleHttpRequestAsync ((req, resp) => {
  82                                         resp.StatusCode = 101;
  83                                         resp.Headers["Upgrade"] = "gtfo";
  84                                 });
  85                         #pragma warning restore 4014
  86                         try {
  87                                 Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
  88                         } catch (AggregateException e) {
  89                                 AssertWebSocketException (e, WebSocketError.Success);
  90                                 return;
  91                         }
  92                         Assert.Fail ("Should have thrown");
  93                 }
  94
  95                 [Test]
  96                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
  97                 public void ServerHandshakeReturnWrongConnectionHeader ()
  98                 {
  99                         #pragma warning disable 4014
 100                         HandleHttpRequestAsync ((req, resp) => {
 101                                         resp.StatusCode = 101;
 102                                         resp.Headers["Upgrade"] = "websocket";
 103                                         // Mono http request doesn't like the forcing, test still valid since the default connection header value is empty
 104                                         //ForceSetHeader (resp.Headers, "Connection", "Foo");
 105                                 });
 106                         #pragma warning restore 4014
 107                         try {
 108                                 Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
 109                         } catch (AggregateException e) {
 110                                 AssertWebSocketException (e, WebSocketError.Success);
 111                                 return;
 112                         }
 113                         Assert.Fail ("Should have thrown");
 114                 }
 115
 116                 [Test]
 117                 [Category ("MobileNotWorking")] // The test hangs when ran as part of the entire BCL test suite. Works when only this fixture is ran
 118                 public void EchoTest ()
 119                 {
 120                         const string Payload = "This is a websocket test";
 121
 122                         Assert.AreEqual (WebSocketState.None, socket.State);
 123                         socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait ();
 124                         Assert.AreEqual (WebSocketState.Open, socket.State);
 125
 126                         var sendBuffer = Encoding.ASCII.GetBytes (Payload);
 127                         Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (sendBuffer), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
 128
 129                         var receiveBuffer = new byte[Payload.Length];
 130                         var resp = socket.ReceiveAsync (new ArraySegment<byte> (receiveBuffer), CancellationToken.None).Result;
 131
 132                         Assert.AreEqual (Payload.Length, resp.Count);
 133                         Assert.IsTrue (resp.EndOfMessage);
 134                         Assert.AreEqual (WebSocketMessageType.Text, resp.MessageType);
 135                         Assert.AreEqual (Payload, Encoding.ASCII.GetString (receiveBuffer, 0, resp.Count));
 136
 137                         Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 138                         Assert.AreEqual (WebSocketState.Closed, socket.State);
 139                 }
 140
 141                 [Test]
 142                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 143                 public void CloseOutputAsyncTest ()
 144                 {
 145                         Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 146                         Assert.AreEqual (WebSocketState.Open, socket.State);
 147
 148                         Assert.IsTrue (socket.CloseOutputAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 149                         Assert.AreEqual (WebSocketState.CloseSent, socket.State);
 150
 151                         var resp = socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None).Result;
 152                         Assert.AreEqual (WebSocketState.Closed, socket.State);
 153                         Assert.AreEqual (WebSocketMessageType.Close, resp.MessageType);
 154                         Assert.AreEqual (WebSocketCloseStatus.NormalClosure, resp.CloseStatus);
 155                         Assert.AreEqual (string.Empty, resp.CloseStatusDescription);
 156                 }
 157
 158                 [Test]
 159                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 160                 public void CloseAsyncTest ()
 161                 {
 162                         Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 163                         Assert.AreEqual (WebSocketState.Open, socket.State);
 164
 165                         Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 166                         Assert.AreEqual (WebSocketState.Closed, socket.State);
 167                 }
 168
 169                 [Test, ExpectedException (typeof (InvalidOperationException))]
 170                 public void SendAsyncArgTest_NotConnected ()
 171                 {
 172                         socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None);
 173                 }
 174
 175                 [Test, ExpectedException (typeof (ArgumentNullException))]
 176                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 177                 public void SendAsyncArgTest_NoArray ()
 178                 {
 179                         Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 180                         socket.SendAsync (new ArraySegment<byte> (), WebSocketMessageType.Text, true, CancellationToken.None);
 181                 }
 182
 183                 [Test, ExpectedException (typeof (InvalidOperationException))]
 184                 public void ReceiveAsyncArgTest_NotConnected ()
 185                 {
 186                         socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None);
 187                 }
 188
 189                 [Test, ExpectedException (typeof (ArgumentNullException))]
 190                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 191                 public void ReceiveAsyncArgTest_NoArray ()
 192                 {
 193                         Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 194                         socket.ReceiveAsync (new ArraySegment<byte> (), CancellationToken.None);
 195                 }
 196
 197                 [Test]
 198                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 199                 public void ReceiveAsyncWrongState_Closed ()
 200                 {
 201                         try {
 202                                 Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 203                                 Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 204                                 Assert.IsTrue (socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None).Wait (5000));
 205                         } catch (AggregateException e) {
 206                                 AssertWebSocketException (e, WebSocketError.Success);
 207                                 return;
 208                         }
 209                         Assert.Fail ("Should have thrown");
 210                 }
 211
 212                 [Test]
 213                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 214                 public void SendAsyncWrongState_Closed ()
 215                 {
 216                         try {
 217                                 Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 218                                 Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 219                                 Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
 220                         } catch (AggregateException e) {
 221                                 AssertWebSocketException (e, WebSocketError.Success);
 222                                 return;
 223                         }
 224                         Assert.Fail ("Should have thrown");
 225                 }
 226
 227                 [Test]
 228                 [Category ("MobileNotWorking")] // Fails when ran as part of the entire BCL test suite. Works when only this fixture is ran
 229                 public void SendAsyncWrongState_CloseSent ()
 230                 {
 231                         try {
 232                                 Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
 233                                 Assert.IsTrue (socket.CloseOutputAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
 234                                 Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
 235                         } catch (AggregateException e) {
 236                                 AssertWebSocketException (e, WebSocketError.Success);
 237                                 return;
 238                         }
 239                         Assert.Fail ("Should have thrown");
 240                 }
 241
 242                 [Test]
 243                 [Category ("NotWorking")]  // FIXME: test relies on unimplemented HttpListenerContext.AcceptWebSocketAsync (), reenable it when the method is implemented
 244                 public void SendAsyncEndOfMessageTest ()
 245                 {
 246                         var cancellationToken = new CancellationTokenSource (TimeSpan.FromSeconds (30)).Token;
 247                         SendAsyncEndOfMessageTest (false, WebSocketMessageType.Text, cancellationToken).Wait (5000);
 248                         SendAsyncEndOfMessageTest (true, WebSocketMessageType.Text, cancellationToken).Wait (5000);
 249                         SendAsyncEndOfMessageTest (false, WebSocketMessageType.Binary, cancellationToken).Wait (5000);
 250                         SendAsyncEndOfMessageTest (true, WebSocketMessageType.Binary, cancellationToken).Wait (5000);
 251                 }
 252
 253                 public async Task SendAsyncEndOfMessageTest (bool expectedEndOfMessage, WebSocketMessageType webSocketMessageType, CancellationToken cancellationToken)
 254                 {
 255                         using (var client = new ClientWebSocket ()) {
 256                                 // Configure the listener.
 257                                 var serverReceive = HandleHttpWebSocketRequestAsync<WebSocketReceiveResult> (async socket => await socket.ReceiveAsync (new ArraySegment<byte> (new byte[32]), cancellationToken), cancellationToken);
 258
 259                                 // Connect to the listener and make the request.
 260                                 await client.ConnectAsync (new Uri ("ws://localhost:" + Port + "/"), cancellationToken);
 261                                 await client.SendAsync (new ArraySegment<byte> (Encoding.UTF8.GetBytes ("test")), webSocketMessageType, expectedEndOfMessage, cancellationToken);
 262
 263                                 // Wait for the listener to handle the request and return its result.
 264                                 var result = await serverReceive;
 265
 266                                 // Cleanup and check results.
 267                                 await client.CloseAsync (WebSocketCloseStatus.NormalClosure, "Finished", cancellationToken);
 268                                 Assert.AreEqual (expectedEndOfMessage, result.EndOfMessage, "EndOfMessage should be " + expectedEndOfMessage);
 269                         }
 270                 }
 271
 272                 async Task<T> HandleHttpWebSocketRequestAsync<T> (Func<WebSocket, Task<T>> action, CancellationToken cancellationToken)
 273                 {
 274                         var ctx = await this.listener.GetContextAsync ();
 275                         var wsContext = await ctx.AcceptWebSocketAsync (null);
 276                         var result = await action (wsContext.WebSocket);
 277                         await wsContext.WebSocket.CloseOutputAsync (WebSocketCloseStatus.NormalClosure, "Finished", cancellationToken);
 278                         return result;
 279                 }
 280
 281                 async Task HandleHttpRequestAsync (Action<HttpListenerRequest, HttpListenerResponse> handler)
 282                 {
 283                         var ctx = await listener.GetContextAsync ();
 284                         handler (ctx.Request, ctx.Response);
 285                         ctx.Response.Close ();
 286                 }
 287
 288                 void AssertWebSocketException (AggregateException e, WebSocketError error, Type inner = null)
 289                 {
 290                         var wsEx = e.InnerException as WebSocketException;
 291                         Console.WriteLine (e.InnerException.ToString ());
 292                         Assert.IsNotNull (wsEx, "Not a websocketexception");
 293                         Assert.AreEqual (error, wsEx.WebSocketErrorCode);
 294                         if (inner != null) {
 295                                 Assert.IsNotNull (wsEx.InnerException);
 296                                 Assert.IsTrue (inner.IsInstanceOfType (wsEx.InnerException));
 297                         }
 298                 }
 299
 300                 void ForceSetHeader (WebHeaderCollection headers, string name, string value)
 301                 {
 302                         if (headerSetMethod == null)
 303                                 headerSetMethod = typeof (WebHeaderCollection).GetMethod ("AddValue", BindingFlags.NonPublic);
 304                         headerSetMethod.Invoke (headers, new[] { name, value });
 305                 }
 306         }
 307 }
 308