使用chai-http测试时，服务器未执行异步功能

Question

我的app.js中有以下函数

let memoryCache = require('./lib/memoryCache');
memoryCache.init().then(() => {
   console.log("Configuration loaded on app start", JSON.stringify(memoryCache.getCache()));
});

app.use('/v1', v1);
...
module.exports = app;

memorycache.init是一个异步函数，其中数据是从数据库填充的

module.exports = function () {
let cache = {};
return {
    init: async () => {
        console.log('called this')
        cache['repairStatus'] = formatData(await getRepairStatus());
        cache['actionStatus'] = formatData(await getActionStatus());
        cache['problemFound'] = formatData(await getProblemFound());
        cache['complaintCode'] = formatData(await getComplaintCode());
        cache['productType'] = formatData(await getProductType());
        console.log('cache is', cache)
    },
    getCache: (key) => {
        if (key) return cache[key] || null;
        else return cache;
    }
}

当我尝试执行chai-http测试时，memorycache.init在测试运行后执行，导致出现错误

let res = await chai.request(server).post(url).send(testObject)

输出为400错误，之后初始化memoryCache。

我该如何纠正这个问题呢？

整个测试：

const chai = require('chai');
const getTestJob = require('../../lib/testutils').getTestJob;
const chaiHttp = require('chai-http');
const server = require('../../../app.js');

chai.use(chaiHttp);
const expect = chai.expect;
const assert = chai.assert;

describe(('Api- CreateJob')，() => { let url =‘/v1/=>’let testSRJob = getTestJob()

 before(async () => {

 })

 beforeEach(() => {

 })

 after(async () => {
 })

 describe('*** HAPPY CASES ***', () => {
   it('successful test', async () => {
   console.log('calling test')
   let result = await chai.request(server).post(url).set('Authorization', 'auth').send(testSRJob)
   if (result.status !== 200) {
     console.log('Status: ', result.status)
     console.log('Error: ', result.error)
     assert.fail()
   } else {
     console.log('Yippie!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!')
   }
  });
})
})

输出：

called this

... some logging from the api tested
Error:  { Error: cannot POST /v1/job (400)
status: 400,
text: '{"message":"Create job failed","code":"E1002","errData":{}}',
method: 'POST',
path: '/v1/job'

>> then failure report in the test

cache is <cache data>
Configuration loaded on app start <cache data>

Answer 1

您在Mocha生命周期钩子(如before()或beforeEach() )中列出的代码是单独的测试吗？如果是在全局范围内，Node可能会尝试执行与memoryCache.init()并行的Mocha测试，这将导致您的应用程序由于未正确初始化而失败。