Mocha不会等待nodejs init完成

Question

我尝试与Mocha进行整合和单元测试，但是Mocha不会等待任何回调（或者在我的情况下，承诺履行）...

在我尝试测试的那一刻，承诺在第一次集成测试完成之前就已经完成，另一刻它崩溃......

server.js

const server = require('./app');

server.listen(process.env.PORT, () => {
    console.log('Starting server.');
    console.log('Displaying server information:');
    console.log(`Host: http://localhost:${process.env.PORT}`);    
});

app.js

require('babel/register');
/**
 * Make some commonly used directories known to the process env
 */
process.env.ROOT_DIR = __dirname;

/**
 * Setup Express server and the Express Router
 */
const express = require('express');
const bodyParser = require('body-parser');

const server = express();

// Parses the body for JSON object in the middleware so extra steps for
// parsing aren't required.
server.use(bodyParser.json());
server.use(bodyParser.urlencoded({extended: true}));


server.use((req, res, next) => {
    console.log('url called', req.originalUrl);
    next();
});

// This is the call which has the database set up in it
// This has a few generator functions in 'm
require('./init')(server);

/**
 * Export
 */
// Define routes on the server.
module.exports = server;

集成测试（这是第一个被解雇的）

import should from 'should';
import supertest from 'supertest';
import server from '../../app';
import co from 'co';

let request = supertest(server); // Set request to context of the app.

describe('Index', function () {

    describe('GET /', function () {
        it('returns 200', co.wrap(function * (done) {
            const res = yield request
                .get('/');

            res.statusCode.should.equal(200);
        }));
    });

    describe('GET /this_is_not_a_valid_route_123456', function () {
        it('returns 404', function (done) {
            request
                .get('/this_is_not_a_valid_route_123456')
                .expect(404, done);
        });
    });
});

命令：

NODE_ENV=test ./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha -- ./test/ --recursive --compilers js:babel/register

有谁知道如何解决这个问题？

发生的事情的截图：
（完成初始化应该在＆＃39;索引GET /＆＃39;以及＆＃39; Init配置回购之后......＆＃39;）

Answer 1

你可以告诉摩卡等。

before(function (done) {
  if (server.listening) return done();
  server.on('listening', function() { done(); });
});

我不确定init文件中的内容，但如果您还想等待其他活动，则可以添加多个before个功能。