猫鼬保存功能不执行

Question

我正在尝试将我的模型保存到 MongoDB 中的数据库中。如果我在运行节点服务器时通过此代码路径，则此代码实际上有效，但是当我尝试使用 mocha 来测试保存模型时，它不再被保存。我已确认与 mongodb 的连接正常。 Thia 是输出：

在常规保存之前定期保存后

如有任何提示或建议，我们将不胜感激。谢谢！

这是我的考试运行。

var app = require('./helpers/app');
var User = require('../models/user');
var supertest = require('supertest');
var should = require('should');
var mongoose = require('mongoose');
var MongoUrl = require('./../config.js').mongoUri
var clearDB  = require('mocha-mongoose')(MongoUrl);
var testuser = {
    username:"admin1",
    password:"password",
    email:"test@gmail.com",
    firstname:"testfirst",
    lastname:"testlast",
    phonenumber:"4151231234"
};

describe("Routing", function() {
describe("Creating an account", function() {

    //To run before each test. DB Clean up is implicitly done after each test.
    beforeEach(function(done) {
        if (mongoose.connection.db) {
            return done();
        }
        mongoose.connect(dbURI, done);
    });

    it('User: Creating an account2', function(done){
        var newUser = new User({
            username: "testusername",
            email: "test1@gmail.com",
            password: "password",
            phoneNumber: "12312312",
            firstname: "testfirst",
            lastname: "testlast"
        });
        console.log("before regular save");
        newUser.save(function(err){
            if(err){
                console.log("testerror: " + err);
            }
            console.log("in regular save");
        });
        console.log("after regular save");
        User.find({}, function(err, docs){
          if (err) return done(err);

          console.log(docs);

          docs.length.should.equal(1);
          done();
        });
    });
});
});

Answer 1

Model#save 是一个异步函数，因此您必须等到它调用其回调，然后才能期望能够通过 Model.find 调用找到已保存的文档。

所以将 find 检查放在 save 回调中：

it('User: Creating an account2', function(done){
    var newUser = new User({
        username: "testusername",
        email: "test1@gmail.com",
        password: "password",
        phoneNumber: "12312312",
        firstname: "testfirst",
        lastname: "testlast"
    });
    console.log("before regular save");
    newUser.save(function(err){
        if(err){
            console.log("testerror: " + err);                
            return done(err);
        }
        console.log("in regular save");
        console.log("after regular save");
        User.find({}, function(err, docs){
          if (err) return done(err);

          console.log(docs);

          docs.length.should.equal(1);
          done();
        });
    });
});

猫鼬保存功能不执行

Mongoose save function doesn't execute

mocha.js

mongoose

mongodb

node.js