Put VarnishEmu in its own module

test/acceptance/cache_validator.js

@@ -1,31 +1,8 @@
 var assert      = require('../support/assert');
-var net = require('net');
 require(__dirname + '/../support/test_helper');
 var CacheValidator = require(__dirname + '/../../lib/cartodb/cache_validator');
-var tests = module.exports = {};
 
-function VarnishEmu(on_cmd_recieved, test_callback) {
-    var self = this;
-    var welcome_msg = 'hi, im a varnish emu, right?';
-
-    self.commands_recieved = [];
-
-    var server = net.createServer(function (socket) {
-      var command = '';
-      socket.write("200 " + welcome_msg.length + "\n");
-      socket.write(welcome_msg);
-      socket.on('data', function(data) {        
-        self.commands_recieved.push(data);
-        on_cmd_recieved && on_cmd_recieved(self.commands_recieved);
-        socket.write('200 0\n');
-      });
-    });
-    server.listen(1337, "127.0.0.1");
-    
-    server.on('listening', function(){
-      test_callback();
-    });    
-}
+var VarnishEmu = require('../support/VarnishEmu');
 
 suite('cache_validator', function() {
 

test/support/VarnishEmu.js

@@ -0,0 +1,25 @@
+var net = require('net');
+
+module.exports = function(on_cmd_recieved, test_callback) {
+    var self = this;
+    var welcome_msg = 'hi, im a varnish emu, right?';
+
+    self.commands_recieved = [];
+
+    var server = net.createServer(function (socket) {
+      var command = '';
+      socket.write("200 " + welcome_msg.length + "\n");
+      socket.write(welcome_msg);
+      socket.on('data', function(data) {
+        self.commands_recieved.push(data);
+        on_cmd_recieved && on_cmd_recieved(self.commands_recieved);
+        socket.write('200 0\n');
+      });
+    });
+    server.listen(1337, "127.0.0.1");
+
+    server.on('listening', function(){
+      test_callback();
+    });
+};
+