不能使用done()或async/await来修复我的承诺不解决

Question

我正在尝试学习与chai-http和摩卡api测试。我已经尝试了done()和async/await，但我不明白为什么它没有解决以下问题-

错误-

Error: Timeout of 2000ms exceeded. For async tests and hooks, ensure "done()" is called; if returning a Promise, ensure it resolves.

Spec文件-

import * as chai from 'chai';
import { assert } from 'chai';
import chaiHttp = require('chai-http');
import 'mocha';
chai.use(chaiHttp);
const expect = chai.expect;
const url = 'https://api.weather.gov';
describe('Weather API', () => {
it('Should be up and running', () => {
return chai.request(url).get('/').then(res => {
expect(res).to.be.status(200);
});
});
it('Should return weather of washington monument', () => {
return chai.request(url).get('/gridpoints/LWX/96,70/forecast')
.set('User-Agent', '[e-mail]')
.set('Accept', 'application/vnd.noaa.dwml+xml')
.then(res => {
expect(res).to.be.status(200);
console.log(res.body.properties.periods);
});
});
});

否则，我没有正确地执行我尝试过的解决方案。如有任何帮助，不胜感激。

Answer 1

当你使用承诺时，你必须使用chai-as-promised，有了这个，你可以用这种方式使用async/await:

import chaiAsPromised = require("chai-as-promised");
chai.use(chaiAsPromised);
//...
it('Should be up and running', async () => {
var response = await chai.request(url).get('/')
return response.should.have.status(200)
// you can use "return expect(response).to.have.status(200);" too
})

注意现在没有使用done，而是添加了return。