如何让 Chai 处理多个数据库查询？

如何解决如何让 Chai 处理多个数据库查询？

我正在尝试了解 Express + Mocha/Chai 中的单元测试。
我试图测试的 API 调用似乎在第一个异步函数和超时后停止，请参阅下面的相关代码和控制台输出。
我不确定 API 本身或测试中是否遗漏了某些内容！

// controller.js
const { Alert } = require('../models');

exports.adDalert = async (req,res) => {
  const username = req.body.uploader !== "" ? req.body.uploader : "anonymous"
  const rowNumber = await Alert.count()
  const title = req.body.title !== "" ? req.body.title : parseInt(rowNumber) + 1

  const addeDalert = await Alert.findOrCreate({
    where: {
      coordinates: req.body.coordinates
    },defaults: {
      username: username,path: req.file.path,title: title
    }
  })

  addeDalert[1] ? 
    res.send(200).render('home',{
      formMessage: `Added alert ${title}`
    }) :
    res.send(303).render('home',{
      formMessage: 'Coordinates already taken.'
    })
};

// test.js
let chai = require('chai');
let chaiHttp = require('chai-http');
let server = require('../../app');
let should = chai.should();

chai.use(chaiHttp);
describe('/POST alert',() => {
  it('it should POST an alert',(done) => {
    chai.request(server)
      .post('/add-alert')
      .send({ username: "foo",title: "bar",coordinates: "baz",path: "foo/bar/baz" })
      .end((err,res) => {
        console.log(res.body)
        done();
      });
  });
});

//mocha tests/**/*.* --exit
/POST alert
Executing (default): SELECT count(*) AS `count` FROM `Alerts` AS `Alert`;
    1) it should POST an alert

  /*
  ** Other tests that are working fine
  */
  1 failing

  1) /POST alert
       it should POST an alert:
     Error: Timeout of 2000ms exceeded. For async tests and hooks,ensure "done()" is called; if returning a Promise,ensure it resolves. (/*..*/test.js)
      at listOnTimeout (internal/timers.js:554:17)
      at processtimers (internal/timers.js:497:7)

解决方法

我解决了我自己的问题：Mocha 没有继续进行，因为我没有将我在表单中使用 Multer 上传的文件传递给它。

这有效：

it('it should POST an alert',async function() {
    await request(server)
      .post('/add-alert')
      .set('Content-Type','multipart/form-data')
      .field('uploader','foo')
      .field('coordinates','bar')
      .field('title','baz')
      .attach('image',fs.readFileSync('./dist/images/image-1617995909552.jpg'),'image-1617995909552.jpg')
      .expect(200)
  });