Mocha, chai, sinon で JavaScriptのテスト - Qiita

準備 必要なnpmは以下 mocha chai sinon (※ sinon-chai入れてもsinonは別に必要?) sinon-chai var chai = require('chai'), should = chai.should(), sinon = require('sinon'), sinonChai = require('sinon-chai'); chai.use(sinonChai);