diff --git a/serve_tests.js b/serve_tests.js
index 6c2edfc..90c58cf 100644
--- a/serve_tests.js
+++ b/serve_tests.js
@@ -1,79 +1,79 @@
 var io = require('socket.io').listen(8000);
 
 var main = io.of('').on('connection', function(socket) {
-  socket.on('message', function(data, fn) {
-    if (fn) {  // Client expects a callback
-      if (data) {
-        fn(data);
-      } else {
-        fn();
-      }
-    } else if (typeof data === 'object') {
-      socket.json.send(data ? data : 'message_response');  // object or null
-    } else {
-      socket.send(data ? data : 'message_response');  // string or ''
-    }
-  });
-  socket.on('emit', function() {
-    socket.emit('emit_response');
-  });
-  socket.on('emit_with_payload', function(payload) {
-    socket.emit('emit_with_payload_response', payload);
-  });
-  socket.on('emit_with_multiple_payloads', function(payload, payload) {
-    socket.emit('emit_with_multiple_payloads_response', payload, payload);
-  });
-  socket.on('emit_with_callback', function(fn) {
-    fn();
-  });
-  socket.on('emit_with_callback_with_payload', function(fn) {
-    fn(PAYLOAD);
-  });
-  socket.on('emit_with_callback_with_multiple_payloads', function(fn) {
-    fn(PAYLOAD, PAYLOAD);
-  });
-  socket.on('emit_with_event', function(payload) {
-    socket.emit('emit_with_event_response', payload);
-  });
-  socket.on('ack', function(payload) {
-    socket.emit('ack_response', payload, function(payload) {
-      socket.emit('ack_callback_response', payload);
+    socket.on('message', function(data, fn) {
+        if (fn) {  // Client expects a callback
+            if (data) {
+                fn(data);
+            } else {
+                fn();
+            }
+        } else if (typeof data === 'object') {
+            socket.json.send(data ? data : 'message_response');  // object or null
+        } else {
+            socket.send(data ? data : 'message_response');  // string or ''
+        }
+    });
+    socket.on('emit', function() {
+        socket.emit('emit_response');
+    });
+    socket.on('emit_with_payload', function(payload) {
+        socket.emit('emit_with_payload_response', payload);
+    });
+    socket.on('emit_with_multiple_payloads', function(payload1, payload2) {
+        socket.emit('emit_with_multiple_payloads_response', payload1, payload2);
+    });
+    socket.on('emit_with_callback', function(fn) {
+        fn();
+    });
+    socket.on('emit_with_callback_with_payload', function(fn) {
+        fn(PAYLOAD);
+    });
+    socket.on('emit_with_callback_with_multiple_payloads', function(fn) {
+        fn(PAYLOAD, PAYLOAD);
+    });
+    socket.on('emit_with_event', function(payload) {
+        socket.emit('emit_with_event_response', payload);
+    });
+    socket.on('ack', function(payload) {
+        socket.emit('ack_response', payload, function(payload) {
+            socket.emit('ack_callback_response', payload);
+        });
+    });
+    socket.on('aaa', function() {
+        socket.emit('aaa_response', PAYLOAD);
+    });
+    socket.on('bbb', function(payload, fn) {
+        if (fn) {
+            fn(payload);
+        }
+    });
+    socket.on('wait_with_disconnect', function() {
+        socket.emit('wait_with_disconnect_response');
     });
-  });
-  socket.on('aaa', function() {
-    socket.emit('aaa_response', PAYLOAD);
-  });
-  socket.on('bbb', function(payload, fn) {
-    if (fn) {
-      fn(payload);
-    }
-  });
-  socket.on('wait_with_disconnect', function() {
-    socket.emit('wait_with_disconnect_response');
-  });
 });
 
 var chat = io.of('/chat').on('connection', function (socket) {
-  socket.on('emit_with_payload', function(payload) {
-    socket.emit('emit_with_payload_response', payload);
-  });
-  socket.on('aaa', function() {
-    socket.emit('aaa_response', 'in chat');
-  });
-  socket.on('ack', function(payload) {
-    socket.emit('ack_response', payload, function(payload) {
-      socket.emit('ack_callback_response', payload);
+    socket.on('emit_with_payload', function(payload) {
+        socket.emit('emit_with_payload_response', payload);
+    });
+    socket.on('aaa', function() {
+        socket.emit('aaa_response', 'in chat');
+    });
+    socket.on('ack', function(payload) {
+        socket.emit('ack_response', payload, function(payload) {
+            socket.emit('ack_callback_response', payload);
+        });
     });
-  });
 });
 
 var news = io.of('/news').on('connection', function (socket) {
-  socket.on('emit_with_payload', function(payload) {
-    socket.emit('emit_with_payload_response', payload);
-  });
-  socket.on('aaa', function() {
-    socket.emit('aaa_response', 'in news');
-  });
+    socket.on('emit_with_payload', function(payload) {
+        socket.emit('emit_with_payload_response', payload);
+    });
+    socket.on('aaa', function() {
+        socket.emit('aaa_response', 'in news');
+    });
 });
 
 var PAYLOAD = {'xxx': 'yyy'};