使用Pre Save钩子

Question

使用'预先保存'的mongoose钩子似乎会导致我的单元测试超时（超过2000毫秒）。

当我注释掉预保存挂钩时，单元测试工作正常......但是当包含预保存挂钩时，测试会超时并且不会返回任何特定的错误消息。

关于什么可能出错的任何想法？

模型（User.js）

var mongoose = require('mongoose');
var bcrypt = require('bcrypt');
var Schema = mongoose.Schema;


var userSchema = new Schema({
    "auth": {
        "local": {
            "email": String,
            "password": String,
        }
    },
    "userProfile" : {
        "firstname" : {"_default": String},
        "lastname" : {"_default": String},
        "username": String,
        "email" : String,
    }
});


userSchema.method('genHash',function(password){
    return bcrypt.hashSync(password, bcrypt.genSaltSync(9));
});

userSchema.method('isValidPassword', function(candidatePassword){
        return bcrypt.compareSync(candidatePassword, this.auth.local.password);
});

// PROBLEM CODE
// userSchema.pre('save', function(next) {

//  var user = this;

//  if(!user.isModified('auth.local.password')) return next();
//  // watch this, I have seperated out this function.
//  user.auth.local.password = user.genHash(user.auth.local.password);
// });

module.exports = mongoose.model('User', userSchema);

单元测试（摩卡）

var chai = require('chai');
var expect = chai.expect;
var mongoose = require('mongoose');
var User = require('../../models/user');
var config = require('../../config/env');

    chai.config.includeStack = true;

// User model
    var mochUser = new User({
        auth: {
            local: {
                email: "smith@gmail.net",
                password: "test"
            }
        },
        userProfile: {
            firstname: {
                _default: "Nathan"
            },
            lastname: {
                _default: "Trent"
            },
            email: "trent@hotmail.com"
        }
    });

before(function() {
    if(mongoose.connection.db) return;
    mongoose.connect(config.db.test);
});


describe('User Model', function() {

    // this.timeout(5000);
    it("Should save object",function (done){
        mochUser.save(function(error) {         

            console.log("Saving");
                expect(error).to.not.exist;
            console.log("No issue.");               
            done();
        });
    });
});