Add a hash code to client and server web socket connections

tests/standalone/io/web_socket_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 //
 
 #import("dart:io");
 
 void testRequestResponseClientCloses(
     int totalConnections, int closeStatus, String closeReason) {
   HttpServer server = new HttpServer();
@@ skipping 132 matching lines @@
   HttpClientConnection conn = client.post("127.0.0.1", server.port, "/");
   WebSocketClientConnection wsconn = new WebSocketClientConnection(conn);
   wsconn.onNoUpgrade = (response) {
     Expect.equals(HttpStatus.BAD_REQUEST, response.statusCode);
     client.shutdown();
     server.close();
   };
 }
 
 
+void testHashCode() {

[Mads Ager (google), 2012/05/14 09:19:39]

How about extending this with a case where you put them in a hash map and find
them again?

[Søren Gjesse, 2012/05/14 15:52:41]

Done.

+  HttpServer server = new HttpServer();
+  HttpClient client = new HttpClient();
+
+  server.listen("127.0.0.1", 0, 5);
+
+  // Create a web socket handler and set is as the HTTP server default
+  // handler.
+  WebSocketHandler wsHandler = new WebSocketHandler();
+  wsHandler.onOpen = (WebSocketConnection conn) {
+    Expect.isNotNull(conn.hashCode());
+    conn.close();
+  };
+  server.defaultRequestHandler = wsHandler.onRequest;
+
+  HttpClientConnection conn = client.get("127.0.0.1", server.port, "/");
+  WebSocketClientConnection wsconn = new WebSocketClientConnection(conn);
+  Expect.isNotNull(wsconn.hashCode());
+  wsconn.onClosed = (status, reason) {
+    client.shutdown();
+    server.close();
+  };
+}
+
+
 void testW3CInterface(
     int totalConnections, int closeStatus, String closeReason) {
   HttpServer server = new HttpServer();
 
   server.listen("127.0.0.1", 0, totalConnections);
 
   // Create a web socket handler and set is as the HTTP server default
   // handler.
   int closeCount = 0;
   WebSocketHandler wsHandler = new WebSocketHandler();
@@ skipping 62 matching lines @@
 
 main() {
   testRequestResponseClientCloses(2, null, null);
   testRequestResponseClientCloses(2, 3001, null);
   testRequestResponseClientCloses(2, 3002, "Got tired");
   testRequestResponseServerCloses(2, null, null);
   testRequestResponseServerCloses(2, 3001, null);
   testRequestResponseServerCloses(2, 3002, "Got tired");
   testNoUpgrade();
   testUsePOST();
+  testHashCode();
 
   testW3CInterface(2, 3002, "Got tired");
 }