old_contents: global.expect  = require('chai').expect;
  global.request = require('supertest');
  
new_contents: process.env.NODE_ENV = 'test';
  
  global.expect  = require('chai').expect;
  global.request = require('supertest');
  global.app     = require('../app');
  
  var http   = require('http');
  var server = http.createServer(global.app);
  
  server.listen(3100);
  
subject: Initialize app on test bootstrap