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#if NET_4_5
using System;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using System.Collections.Generic;
using System.Net.WebSockets;
using System.Reflection;
using System.Text;
using NUnit.Framework;
namespace MonoTests.System.Net.WebSockets
{
[TestFixture]
public class ClientWebSocketTest
{
const string EchoServerUrl = "ws://echo.websocket.org";
const int Port = 42123;
HttpListener listener;
ClientWebSocket socket;
MethodInfo headerSetMethod;
[SetUp]
public void Setup ()
{
listener = new HttpListener ();
listener.Prefixes.Add ("http://localhost:" + Port + "/");
listener.Start ();
socket = new ClientWebSocket ();
}
[TearDown]
public void Teardown ()
{
if (listener != null) {
listener.Stop ();
listener = null;
}
if (socket != null) {
if (socket.State == WebSocketState.Open)
socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (2000);
socket.Dispose ();
socket = null;
}
}
[Test]
public void ServerHandshakeReturnCrapStatusCodeTest ()
{
// On purpose,
#pragma warning disable 4014
HandleHttpRequestAsync ((req, resp) => resp.StatusCode = 418);
#pragma warning restore 4014
try {
Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success, typeof (WebException));
return;
}
Assert.Fail ("Should have thrown");
}
[Test]
public void ServerHandshakeReturnWrongUpgradeHeader ()
{
#pragma warning disable 4014
HandleHttpRequestAsync ((req, resp) => {
resp.StatusCode = 101;
resp.Headers["Upgrade"] = "gtfo";
});
#pragma warning restore 4014
try {
Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success);
return;
}
Assert.Fail ("Should have thrown");
}
[Test]
public void ServerHandshakeReturnWrongConnectionHeader ()
{
#pragma warning disable 4014
HandleHttpRequestAsync ((req, resp) => {
resp.StatusCode = 101;
resp.Headers["Upgrade"] = "websocket";
// Mono http request doesn't like the forcing, test still valid since the default connection header value is empty
//ForceSetHeader (resp.Headers, "Connection", "Foo");
});
#pragma warning restore 4014
try {
Assert.IsTrue (socket.ConnectAsync (new Uri ("ws://localhost:" + Port), CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success);
return;
}
Assert.Fail ("Should have thrown");
}
[Test]
[Ignore ("See bug #24340")]
public void EchoTest ()
{
const string Payload = "This is a websocket test";
Assert.AreEqual (WebSocketState.None, socket.State);
socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait ();
Assert.AreEqual (WebSocketState.Open, socket.State);
var sendBuffer = Encoding.ASCII.GetBytes (Payload);
Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (sendBuffer), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
var receiveBuffer = new byte[Payload.Length];
var resp = socket.ReceiveAsync (new ArraySegment<byte> (receiveBuffer), CancellationToken.None).Result;
Assert.AreEqual (Payload.Length, resp.Count);
Assert.IsTrue (resp.EndOfMessage);
Assert.AreEqual (WebSocketMessageType.Text, resp.MessageType);
Assert.AreEqual (Payload, Encoding.ASCII.GetString (receiveBuffer, 0, resp.Count));
Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.AreEqual (WebSocketState.Closed, socket.State);
}
[Test]
[Ignore ("See bug #24340")]
public void CloseOutputAsyncTest ()
{
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
Assert.AreEqual (WebSocketState.Open, socket.State);
Assert.IsTrue (socket.CloseOutputAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.AreEqual (WebSocketState.CloseSent, socket.State);
var resp = socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None).Result;
Assert.AreEqual (WebSocketState.Closed, socket.State);
Assert.AreEqual (WebSocketMessageType.Close, resp.MessageType);
Assert.AreEqual (WebSocketCloseStatus.NormalClosure, resp.CloseStatus);
Assert.AreEqual (string.Empty, resp.CloseStatusDescription);
}
[Test]
public void CloseAsyncTest ()
{
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
Assert.AreEqual (WebSocketState.Open, socket.State);
Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.AreEqual (WebSocketState.Closed, socket.State);
}
[Test, ExpectedException (typeof (InvalidOperationException))]
public void SendAsyncArgTest_NotConnected ()
{
socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None);
}
[Test, ExpectedException (typeof (ArgumentNullException))]
public void SendAsyncArgTest_NoArray ()
{
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
socket.SendAsync (new ArraySegment<byte> (), WebSocketMessageType.Text, true, CancellationToken.None);
}
[Test, ExpectedException (typeof (InvalidOperationException))]
public void ReceiveAsyncArgTest_NotConnected ()
{
socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None);
}
[Test, ExpectedException (typeof (ArgumentNullException))]
public void ReceiveAsyncArgTest_NoArray ()
{
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
socket.ReceiveAsync (new ArraySegment<byte> (), CancellationToken.None);
}
[Test]
public void ReceiveAsyncWrongState_Closed ()
{
try {
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.ReceiveAsync (new ArraySegment<byte> (new byte[0]), CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success);
return;
}
Assert.Fail ("Should have thrown");
}
[Test]
public void SendAsyncWrongState_Closed ()
{
try {
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.CloseAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success);
return;
}
Assert.Fail ("Should have thrown");
}
[Test]
public void SendAsyncWrongState_CloseSent ()
{
try {
Assert.IsTrue (socket.ConnectAsync (new Uri (EchoServerUrl), CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.CloseOutputAsync (WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None).Wait (5000));
Assert.IsTrue (socket.SendAsync (new ArraySegment<byte> (new byte[0]), WebSocketMessageType.Text, true, CancellationToken.None).Wait (5000));
} catch (AggregateException e) {
AssertWebSocketException (e, WebSocketError.Success);
return;
}
Assert.Fail ("Should have thrown");
}
async Task HandleHttpRequestAsync (Action<HttpListenerRequest, HttpListenerResponse> handler)
{
var ctx = await listener.GetContextAsync ();
handler (ctx.Request, ctx.Response);
ctx.Response.Close ();
}
void AssertWebSocketException (AggregateException e, WebSocketError error, Type inner = null)
{
var wsEx = e.InnerException as WebSocketException;
Console.WriteLine (e.InnerException.ToString ());
Assert.IsNotNull (wsEx, "Not a websocketexception");
Assert.AreEqual (error, wsEx.WebSocketErrorCode);
if (inner != null) {
Assert.IsNotNull (wsEx.InnerException);
Assert.IsTrue (inner.IsInstanceOfType (wsEx.InnerException));
}
}
void ForceSetHeader (WebHeaderCollection headers, string name, string value)
{
if (headerSetMethod == null)
headerSetMethod = typeof (WebHeaderCollection).GetMethod ("AddValue", BindingFlags.NonPublic);
headerSetMethod.Invoke (headers, new[] { name, value });
}
}
}
#endif
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