Karma
$ npm install -g karma
Mocha
$ npm install -g mocha
Chai
$ npm install chai
Sinon.JS
$ wget http://sinonjs.org/releases/sinon-1.7.1.js
:white_check_mark:Test JavaScript with Karma, Mocha, Chai and Sinon.JS
JavaScript
$ npm install -g karma
$ npm install -g mocha
$ npm install chai
$ wget http://sinonjs.org/releases/sinon-1.7.1.js