Mockgoose不拦截数据库调用

我使用mockgoose在一些控制器unit testing中模拟db。 运行我的testing套件后，我可以在我的数据库中find具有我的testing套件中的凭证的用户。 我有一种感觉，这与我在app.js中连接的事实有关，但是我迷路了。

这是相关的代码：

app.js：

var express = require('express'); var path = require('path'); var logger = require('morgan'); var cookieParser = require('cookie-parser'); var bodyParser = require('body-parser'); var app = express(); var mongoose = require('mongoose'); var db; mongoose.connect('mongodb://****:****@ds053438.mlab.com:53438/express-crud'); db = mongoose.connection; db.on('error', console.error.bind(console, 'connection error: ')); require('./router')(app); 

路由器/控制器：

 var User = require('../../models/user'); var routes = function(app) { var baseUrl = app.get('baseUrl') + '/users'; /* POST new user */ app.post(baseUrl + '/', function (req, res, next) { var user = new User(); // FOR THE LOVE OF GOD HASH PASSWORD IDIOT user.password = req.body.password; user.username = req.body.username; user.admin = false; User.create(user, function (err, createdUser) { if (err) { return next(err); } res.status(200).send({ message: 'success', username: createdUser.username, success: true }); }); }); } module.exports = routes; 

模型：

 var mongoose = require('mongoose'); var Schema = mongoose.Schema; var UserSchema = new Schema({ username: { type: String, required: true, minlength: 4, trim: true }, // hash it nerd. password: { type: String, required: true, minlength: 12, trim: true }, admin: { type: Boolean, required: true } }); module.exports = mongoose.model('User', UserSchema); 

testing：

 var expect = require('chai').expect; var request = require('supertest'); var mongoose = require('mongoose'); var mockgoose = require('mockgoose'); mockgoose(mongoose); var app = require('../../app.js'); var baseUrl = app.get('baseUrl'); describe('CONTROLLERS', function() { describe('/users/', function () { describe('POST', function () { it('responds with 200 for valid payload', function (done) { request(app) .post(baseUrl + '/users') .set('Accept', 'application/json') .send({ 'username': 'testUserWithMockgoose', 'password': 'testPasswordThatsLongEnough' }) .expect(200) .end(function (err, res) { if (err) { return done(err); } done(); }) }) }); }); }); 

这不是我完整的代码，但我试图减less它，而不会丢失任何相关的信息。 谢谢！