尝试测试是否在路由器上调用了下一个功能

Question

我不知道问题是否很清楚，但可能正在查看您会理解的代码。

我正在尝试查看路由器上是否调用了next（）函数。

但是，每次使用调试器时，我都会看到我作为存根传递到路由器的下一个不会像存根一样放在路由器上，看起来好像在途中迷路了。如果我从路由器中提取回调并将其单独导出，则效果很好。但是我不想分离并导出它们。

const express = require('express');
const mostReadRouter = express.Router();
const mostReadBackEnd = require('../services/most-read-back-end');
const translateMostReadList = require('../services/most-read-service');

mostReadRouter.get('/', (req, res, next) => {

    let mostReadUrl = req.query.most_read_url;

    if (!mostReadUrl) {
        logger.error('param most_read_url is required');
        res.status(400).send('param most_read_url is required');
        return;
    }

    let sendSucces = mostRead => {
        logger.info(`sending most read list for url: ${mostReadUrl}`);
        res.json(mostRead);
    };

    let sendError = error => {
        if (isNotFoundError(error)) {
            next();
        } else {
            next(error);
        }
    };

    mostReadBackEnd
        .getMostReadList(mostReadUrl)
        .then(translateMostReadList, sendError)
        .then(sendSucces, sendError)
        .catch(sendError);
});

module.exports = mostReadRouter;

const chai = require('chai');
const {expect} = chai;
chai.use(require('sinon-chai'));
const sinon = require('sinon');
const sandbox = sinon.createSandbox();
const proxyQuire = require('proxyquire');
const statusStub = sandbox.stub();
const sendStub = sandbox.stub();
const getMostReadListStub = sandbox.stub();
const translateStub = sandbox.stub();
const jsonStub = sandbox.stub();
const thenStub = sandbox.stub();
process.env.CONFIGURATOR_API = 'xpto';


const router = proxyQuire('../../app/routes/most-read-router', {
    '../services/most-read-back-end': {
        getMostReadList: getMostReadListStub
    },
    '../services/most-read-service': {
        translate: translateStub
    }
});

describe('MostReadRouter', () => {
    afterEach(() => sandbox.reset());

    describe('#get(request,response,next)', () => {
        it.only('should call next() when getMostReadList does not work` ', async () => {
            
            getMostReadListStub.rejects(new Error('the error'));

            let req = {
                method: 'GET',
                url: '/',
                query: {
                    most_read_url: 'http://beatiful_url.com'
                }
            };

            let res = {
                json: jsonStub
            };

            let next = sandbox.stub();
            

            await router(req, res, next);

            expect(next).to.be.calledOnce;
        });
    })
});