单元测试环境
安装依赖
npm install --save-dev mocha chai supertest
npm install --save-dev @types/chai @types/mocha @types/supertest
- mocha 模块是测试框架
- chai 模块是用来进行测试结果断言库
- supertest 模块是http请求测试库，用来请求API接口
创建test文件夹
dudu
├── src
│ └── application.js
└── test
└── request.test.ts
测试代码 request.test.js
import 'mocha';
import * as chai from 'chai'
import supertest from "supertest";
import {Application} from './../src/application'
let expect = chai.expect
let app = new Application();
let request = supertest(app.run(3001))
// 测试套件/组
describe('测试url请求', () => {
// 测试用例
it('测试url test', (done: Mocha.Done) => {
request
.get('/test')
.expect(200)
.end((err: any, res: any) => {
// 断言判断结果是否为string类型
expect(res.body.info).to.be.an('string')
done()
})
})
})
在package.json中增加test script
"scripts": {
"test": "./node_modules/mocha/bin/mocha -r ts-node/register test/**/*.test.ts --exit"
},
执行测试
npm test