同步配套实战源码：【The Art of Unit Testing 3-自学笔记05】第三章 用 stub 桩断开依赖项

const moment = require('moment'); const { verifierPassword } = require('../password-verifier-time00'); const SUNDAY = 0, SATURDAY = 6; describe('verifier', () => { const TODAY = moment().day(); // test is always executed, but might not do anything test('on weekends, throws exceptions', () => { if([SATURDAY, SUNDAY].includes(TODAY)) { expect(() => verifyPassword('anything', [])) .toThrowError("It's the weekend!"); } }); // test is not even executed on week days if([SATURDAY, SUNDAY].includes(TODAY)) { test('on a weekend, throw an error', () => { expect(() => verifyPassword('anything', [])) .toThrow("It's the weekend!"); }); } });