test.js

// example test script for module with http.get
// uses sinon, chai and mocha.

var Module = require('./my-module-that-does-http');

var http = require('http');

describe('Module', function () {

  beforeEach(function () {
    sinon.stub(http, 'get').yields(mockresponse);
  });
  afterEach(function () {
    http.get.restore();
  });
  
  it('does an http.get', function () {
    Module.foo();
    http.get.should.have.been.called;
  });

});