Question

这是我第一次在node js中测试路由，我正在使用mocha，supertest和chai。这是我的server.js文件：

const express = require('express');
const app = express();
const path = require('path');
const http = require('http').Server(app);
const io = require('socket.io')(http);
const bodyParser = require('body-parser');
const fs = require('fs');
//const helpers = require('./includes/helpers.js');
var cors = require('cors');
app.use(cors());
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(express.static(path.join(__dirname, '../dist/chat/')));
require('./listen.js')(http);
app.use((req, res, next) => {
 res.setHeader("Access-Control-Allow-Origin","*");
 res.setHeader("Access-Control-Allow-Headers","Origin, X-Requested-With, Content-Type, Accept");
 res.setHeader("Access-Control-Allow-Methods","GET, POST, PATCH, DELETE, OPTIONS"); 
 next();
});
const MongoClient = require('mongodb').MongoClient;
const url = 'mongodb://localhost:27017';
MongoClient.connect(url, { poolSize: 10 }, function (err, client) {
  if (err) { return console.log(err) }
  const dbName = 'testdb';
  const db = client.db(dbName);
  require('./routes/create.js')(app, db);
  require('./routes/remove.js')(app, db);
  require('./routes/update.js')(app, db);
  require('./routes/read.js')(app, db);
  require('./routes/add.js')(app, db);
  require('./routes/auth.js')(app, db);
  require('./routes/search.js')(app, db);
});

我想测试read.js路由，基本上读路由返回一个JSON数组，该数组具有一些键/值参数，例如ID（密钥），名称（密钥）等。这是我的test.js文件：

var assert = require('assert');
const express = require('express');
const app = express();
var read = require('../server/routes/read.js');
var http = require('http');
var helpers = require('./include/helpers');
//var api = require('../server/server.js');

var should = require('chai').should();
var expect = require('chai').expect;
var supertest = require('supertest');
var api = supertest('http://localhost:3000');
var request = require('supertest');


describe('The read route',()=>{
  it('should be an object with valid parameters',function(done){
   api.get('/api/read')
   .set('Accept','application/json')
   .expect(200)
   .end(function(err,res){
     if (err) throw err;
     expect(res.body).to.not.equal(null);
    expect(res.body).to.have.property('id');
     done();
    });
  });
});

该测试工作正常，唯一的问题是，当我运行以下代码行：'expect（res.body）.to.have.property（'id'）'时，该测试失败，提示期望的[]，我没有弄错了什么，我的读取路由返回了一个带有参数的JSON数组：{id：4，prodname：'iPhone'，type'phone'，description：'Nice phone'}（顺便说一句，它从mongodb返回数据）它应该检测参数中的ID。有帮助吗？

Mocha，Chai和Supertest（NodeJS）的测试失败，从mongodb检索数据

0 个答案: