Echo the WebSocket close reason as well as the close code

tests/standalone/io/web_socket_test.dart

 // Copyright (c) 2013, 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.
 //
 // VMOptions=
 // VMOptions=--short_socket_read
 // VMOptions=--short_socket_write
 // VMOptions=--short_socket_read --short_socket_write
 
 import "dart:async";
@@ skipping 24 matching lines @@
                                      0,
                                      backlog: backlog,
                                      certificateName: CERT_NAME)
              : HttpServer.bind(HOST_NAME,
                                0,
                                backlog: backlog);
 
   Future<WebSocket> createClient(int port) =>
     WebSocket.connect('${secure ? "wss" : "ws"}://$HOST_NAME:$port/');
 
+  checkCloseStatus(webSocket, closeStatus, closeReason) {
+    Expect.equals(closeStatus == null ? WebSocketStatus.NO_STATUS_RECEIVED
+                                      : closeStatus, webSocket.closeCode);
+    Expect.equals(closeReason == null ? ""
+                                      : closeReason, webSocket.closeReason);
+  }
+
   void testRequestResponseClientCloses(int totalConnections,
                                        int closeStatus,
                                        String closeReason,
                                        int numberOfMessages) {
     assert (numberOfMessages >= 1);
 
     asyncStart();
     createServer().then((server) {
       server.transform(new WebSocketTransformer()).listen((webSocket) {
         asyncStart();
         webSocket.listen(
             webSocket.add,
             onDone: () {
-              Expect.equals(closeStatus == null
-                            ? WebSocketStatus.NO_STATUS_RECEIVED
-                            : closeStatus, webSocket.closeCode);
-              Expect.equals(
-                  closeReason == null ? ""
-                                      : closeReason, webSocket.closeReason);
+              checkCloseStatus(webSocket, closeStatus, closeReason);
               asyncEnd();
             });
         }, onDone: () {
           asyncEnd();
         });
 
       int closeCount = 0;
       String messageText = "Hello, world!";
       for (int i = 0; i < totalConnections; i++) {
         asyncStart();
         createClient(server.port).then((webSocket) {
           webSocket.add(messageText);
           webSocket.listen(
               (message) {
                 numberOfMessages--;
                 Expect.equals(messageText, message);
 
                 if (numberOfMessages > 0) {
                   webSocket.add(message);
                 } else {
                   webSocket.close(closeStatus, closeReason);
                 }
               },
               onDone: () {
-                Expect.equals(closeStatus == null
-                              ? WebSocketStatus.NO_STATUS_RECEIVED
-                              : closeStatus, webSocket.closeCode);
-                Expect.equals("", webSocket.closeReason);
+                checkCloseStatus(webSocket, closeStatus, closeReason);
                 closeCount++;
                 if (closeCount == totalConnections) {
                   server.close();
                 }
                 asyncEnd();
               });
           });
       }
     });
   }
@@ skipping 10 matching lines @@
             (message) {
               messageCount++;
               if (messageCount < 10) {
                 Expect.equals(messageText, message);
                 webSocket.add(message);
               } else {
                 webSocket.close(closeStatus, closeReason);
               }
             },
             onDone: () {
-              Expect.equals(closeStatus == null
-                            ? WebSocketStatus.NO_STATUS_RECEIVED
-                            : closeStatus, webSocket.closeCode);
-              Expect.equals("", webSocket.closeReason);
+              checkCloseStatus(webSocket, closeStatus, closeReason);
               closeCount++;
               if (closeCount == totalConnections) {
                 server.close();
               }
             });
         webSocket.add(messageText);
       });
 
       for (int i = 0; i < totalConnections; i++) {
         createClient(server.port).then((webSocket) {
             webSocket.listen(
                 webSocket.add,
                 onDone: () {
-                  Expect.equals(closeStatus == null
-                                ? WebSocketStatus.NO_STATUS_RECEIVED
-                                : closeStatus, webSocket.closeCode);
-                  Expect.equals(closeReason == null
-                                ? ""
-                                : closeReason, webSocket.closeReason);
+                  checkCloseStatus(webSocket, closeStatus, closeReason);
                 });
             });
       }
     });
   }
 
 
   void testMessageLength(int messageLength) {
     createServer().then((server) {
       Uint8List originalMessage = new Uint8List(messageLength);
@@ skipping 201 matching lines @@
             (message) {
               messageCount++;
               if (messageCount < 10) {
                 Expect.equals(messageText, message);
                 webSocket.add(message);
               } else {
                 webSocket.close(closeStatus, closeReason);
               }
             },
             onDone: () {
-              Expect.equals(closeStatus, webSocket.closeCode);
-              Expect.equals("", webSocket.closeReason);
+              checkCloseStatus(webSocket, closeStatus, closeReason);
               closeCount++;
               if (closeCount == totalConnections) {
                 server.close();
               }
             });
         webSocket.add(messageText);
       });
 
       void webSocketConnection() {
         bool onopenCalled = false;
@@ skipping 218 matching lines @@
   SecureSocket.initialize(database: testPkcertDatabase,
                           password: "dartdart");
 }
 
 
 main() {
   new SecurityConfiguration(secure: false).runTests();
   initializeSSL();
   new SecurityConfiguration(secure: true).runTests();
 }