使用Mocha對node項(xiàng)目接口進(jìn)行單元測試

一.安裝Mocha，supertest并配置Mocha

npm i mocha supertest -D

在package.json的script.test 注意配置--exit操作符可以運(yùn)行完畢后自動(dòng)關(guān)閉運(yùn)行腳本

{ 
  "scripts": {
    "test": "mocha --exit"
  }
}

二.實(shí)戰(zhàn)測試項(xiàng)目接口

1. 簡單寫一個(gè)服務(wù)器

//app.js
const Koa = require('koa2');
const app = new Koa();
app.use((ctx,next)=>{
    ctx.response.type = 'text/html';
    ctx.body = `${ctx.url}`;
});
module.exports = app;

2. 寫測試代碼

//app.test.js
const 
    request = require('supertest'),
    app = require('../app');
describe('#test koa app',function(){
    let server = app.listen(9900);
    describe('#test server',function(){
        it('#test GET /',async function(){
           await request(server).get('/sky').expect(200,'/sky');
        })
    })
})

3. 進(jìn)行測試

skymac@skymacdeMBP machajs % npm test

> machajs@1.0.0 test /Users/skymac/Desktop/all-demo/machajs
> mocha
  #test koa app
    #test server
(node:23361) [DEP0066] DeprecationWarning: OutgoingMessage.prototype._headers is deprecated
      ? #test GET /


  1 passing (25ms)

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