module.exports wont work in node.js (no errors present)

I remember module.exports working perfectly fine once before but today It would'nt res.send. I simply receive a blank page with no errors. Could you explain why? I am quite confused. Here is an image of my directory structure if for some reason you need it: HERE!

Code(Important parts) As you can see, I am attempting to get the test variable in with the index.js file. I required the file and put it out as an export.

App.js

var express  = require('express');
var http     = require('http');
var path     = require('path');

var app      = module.exports       = express();

// all environments go here...

require('./routes/index.js');

//create server here

routes/index.js

var app = require('../app.js');

app.get('/testing', function(req,res) {
    var logic = require('./logic.js');
    res.send(logic.test);
});

//other routes below

routes/logic.js

var test = module.exports = "Hello World";