在Express中测试中间件时提供会话

时间:2016-11-16 14:46:07

标签: node.js express supertest express-session nock

我正在尝试使用supertest和nock在我的Express应用程序中测试中间件函数,但是我遇到的问题是,我设置的路由由早期的中间件检查,以确保传入的{{1}上存在会话属性对象。

我需要以某种方式在运行测试之前模拟会话对象,但我不确定如何处理它。首先让我分享一些代码:

router.js

req

routes.js

app.use('/api', helpers.hasAccessToken, require('./routes.js'));

helpers.js

router.route('/*')
  .get(routesController.fetch)

routesController.js

module.exports.hasAccessToken = function(req, res, next) {
  if(req.session.accessToken){
    next();
  } else {
    res.status(401).send('LOGIN_SESSION_ENDED');
  }
};

routesController.spec.js

module.exports.fetch = function(req, res) {
  var options = helpers.buildAPIRequestOptions(req);
  request(options, function(err, response, body){
    res.status(response.statusCode).send(body);
  });
};

我的测试失败,因为var app = require('./index.js'), request = require('supertest')(app), expect = require('chai').expect, nock = require('nock'); describe('GET requests', function(){ beforeEach(function(){ nock('https://10.105.195.12:8243') .get('/v1/schemes') .reply(200, {foo:'bar'}); }); it('should return a 200 HTTP status code', function(done){ request .get('/api/schemes') .end(function(err, res){ expect(res.status).to.equal(200); done(); }); }); }); 的值是401.我正在使用快速会话,但我想知道我是否有某种方式可以获得我的测试套件中的res.status对象并设置运行任何测试之前的accessToken属性的值。

有人可以提出任何意见或想法吗?

由于

1 个答案:

答案 0 :(得分:2)

让我们为req.session对象创建一些存根,其值在我们的控制之下。

var app = require('./index.js'),
  request = require('supertest'), // no longer app here as we want to call parentApp
  expect = require('chai').expect,
  nock = require('nock');

describe('GET requests', function(){
  var parentApp;

  beforeEach(function(){
    parentApp = express();
    parentApp.use(function(req, res, next) { // lets stub session middleware
      req.session = {};
      next();
    })
    parentApp.get('/api', function(req, res, next) {
      req.session.accessToken = true;  // and provide some accessToken value
      next();
    })
    parentApp.use(app);
    nock('https://10.105.195.12:8243')
      .get('/v1/schemes')
      .reply(200, {foo:'bar'});
  });

  it('should return a 200 HTTP status code', function(done){
    request(parentApp) // we are testing now app through parentApp and stubbed middleware
      .get('/api/schemes')
      .end(function(err, res){
        expect(res.status).to.equal(200);
        done();
      });
  });
});