Add test for sending json to a room.

test/transports.websocket.test.js

@@ -643,6 +643,88 @@ module.exports = {
     });
   },
 
+  'test sending json to all clients in a room': function (done) {
+    var port = ++ports
+      , cl1 = client(port)
+      , cl2 = client(port)
+      , cl3 = client(port)
+      , io = create(cl1)
+      , messages = 0
+      , joins = 0
+      , connections = 0
+      , disconnections = 0;
+
+    io.configure(function () {
+      io.set('close timeout', 0);
+    });
+
+    io.sockets.on('connection', function (socket) {
+      connections++;
+
+      if (connections != 3) {
+        socket.join('woot', function () {
+          joins++;
+
+          if (joins == 2) {
+            io.sockets.in('woot').json.send(123);
+          }
+        });
+      }
+
+      socket.on('disconnect', function () {
+        disconnections++;
+
+        if (disconnections == 3) {
+          messages.should.eql(2);
+          cl1.end();
+          cl2.end();
+          cl3.end();
+          io.server.close();
+          done();
+        }
+      });
+    });
+
+    cl1.handshake(function (sid) {
+      var ws1 = websocket(cl1, sid);
+      ws1.on('message', function (msg) {
+        msg.should.eql({
+            type: 'json'
+          , data: 123
+          , endpoint: ''
+        });
+
+        messages++;
+        ws1.finishClose();
+      });
+    });
+
+    cl2.handshake(function (sid) {
+      var ws2 = websocket(cl2, sid);
+      ws2.on('message', function (msg) {
+        msg.should.eql({
+            type: 'json'
+          , data: 123
+          , endpoint: ''
+        });
+
+        messages++;
+        ws2.finishClose();
+      });
+    });
+
+    cl3.handshake(function (sid) {
+      var ws3 = websocket(cl2, sid);
+      ws3.on('message', function (msg) {
+        messages++;
+      });
+
+      setTimeout(function () {
+        ws3.finishClose();
+      }, 20);
+    });
+  },
+
   'test emitting to all clients in a room': function (done) {
     var port = ++ports
       , cl1 = client(port)