我试图遵循这个例子：https://www.alexjamesbrown.com/blog/development/stubbing-middleware-testing-express-supertest/ 但sinon存根似乎没有执行包装的代码。我已经看到了很多关于这个问题的堆栈溢出帖子，但没有一个答案可以帮助我弄清楚我做错了什么。每当我运行测试时，我都会收到以下错误：

1) should return a list of sites

0 次通过（42 毫秒）1 次失败

< Li > GET/API/config/build pro/sites应返回站点列表:错误:预期200“正常”，测试时得到403“禁止”。测试时的_ assert status(node _ modules \ supertest \ lib \ Test . js:268:12)。_ assert function(node _ modules \ supertest \ lib \ test . js:283:11)at test . assert(node _ modules \ supertest \ lib \ test . js:173:18)at server . local assert(node _ modules \ supertest \ lib \ test . js:131:12)at emit closent(net . js:1655:8)at processTicksAndRejections(internal/process/task _ queues . js:83:21)

这让我相信它不是在调用存根代码，而是在执行实际的授权函数。这是我的代码：

const express = require('express');
const app = express();
const authorization = require('./security/authorization');

const configRoutes = require('./api/routes/config');

app.all('/api/*', authorization.authorize);
app.use('/api/config', configRoutes);

module.exports = app;

const aad = require('azure-ad-jwt');

module.exports.authorize = (req, res, next) => {
    if(!req.headers.authorization){
        res.status(403).json({
            message: "Auth failed"
        });
        return;
    }

    const jwtToken = req.headers.authorization.replace('Bearer ', '');

    aad.verify(jwtToken, null, function (err, result) {
        if (result) {
            next();
        } else {
            res.status(401).json({
                message: "Auth failed"
            });
        }
    });
};

const request = require('supertest');
const sinon = require('sinon');
const app = require('../app');
const authorization = require('../security/authorization');

var agent;

describe('GET /api/names', () => {
    before(() => {
        ensureAuthenticatedSpy = sinon.stub(authorization, 'authorize');

        ensureAuthenticatedSpy.callsArgWithAsync(2);

        agent = require('supertest')
            .agent(require('../app'));
    });

    it('should return a list of names', done => {
        agent
            .get('/api/config/buildPro/sites')
            .expect(200)
            .end((err, res) => {
                if (err) return done(err);
                done();
            });
    });
});