javascript - chai 期望在返回值未定义时传递

Question

在我看来，这个测试应该不会通过

Chai 测试

const chai = require('chai')
const expect = chai.expect;
const chaiHttp = require('chai-http');
const request = chaiHttp.expect;
const config = require('../../app/config');
const worker = require('../../app/worker');

chai.use(chaiHttp);

describe('server response', function () {
    .....

    it('should return 200', function () {
        chai.request(`http://localhost:${config.port}`)
        .get('/')
        .end(function (err, res) {
            expect('as').to.have.status(200);
        });
    });
});

终端

> NODE_ENV=test mocha --timeout 20000 --recursive test/ --compilers js:babel-core/register



  server response
    ✓ should return 200


  1 passing (150ms)

Answer 1

我认为您缺少 done 回调。像这样尝试

it('should return 200', function (done) {
    chai.request(`http://localhost:${config.port}`)
    .get('/')
    .end(function (err, res) {
        expect('as').to.have.status(200);
        done();
    });
});

使用这段代码，只有在以下情况下测试才会通过

expect('as').to.have.status(200);

是真的(对于你当前的例子来说永远是假的)