Node.js - 使用mocha测试表达应用程序时出现"错误:连接ECONNREFUSED"

Question

首先,我没有收听端口80或8080.我正在收听端口1337.

我用express创建了一个简单的HTTP服务器.这是启动服务器的app.js脚本.

require('./lib/server').listen(1337)

服务器脚本位于lib/server.js文件中,因为测试脚本中也将使用相同的脚本.

var http = require('http')
,   express = require('express')
,   app = express()

app.get('/john', function(req, res){
    res.send('Hello John!')
})

app.get('/sam', function(req, res){
    res.send('Hello Sam!')
})

module.exports = http.createServer(app)

并且,最后test/test.js:

var server = require('../lib/server')
,   http = require('http')
,   assert = require('assert')

describe('Hello world', function(){

    before(function(done){
        server.listen(1337).on('listening', done)
    })

    after(function(){
        server.close()
    })

    it('Status code of /john should be 200', function(done){
        http.get('/john', function(res){
            assert(200, res.statusCode)
            done()
        })
    })

    it('Status code of /sam should be 200', function(done){
        http.get('/sam', function(res){
            assert(200, res.statusCode)
            done()
        })
    })

    it('/xxx should not exists', function(done){
        http.get('/xxx', function(res){
            assert(404, res.statusCode)
            done()
        })
    })

})

但是我得到了3/3错误:

Hello world
1) Status code of /john should be 200
2) Status code of /sam should be 200
3) /xxx should not exists


? 3 of 3 tests failed:

1) Hello world Status code of /john should be 200:
 Error: connect ECONNREFUSED
  at errnoException (net.js:770:11)
  at Object.afterConnect [as oncomplete] (net.js:761:19)

2) Hello world Status code of /sam should be 200:
 Error: connect ECONNREFUSED
  at errnoException (net.js:770:11)
  at Object.afterConnect [as oncomplete] (net.js:761:19)

3) Hello world /xxx should not exists:
 Error: connect ECONNREFUSED
  at errnoException (net.js:770:11)
  at Object.afterConnect [as oncomplete] (net.js:761:19)

我真的不明白为什么这样,因为我的测试脚本似乎是逻辑.我运行服务器node app.js并手动测试,localhost:1337/john而且localhost:1337/sam效果很好!

有帮助吗？谢谢.

Answer 1

对于http.get()工作,你需要的完整路径分配到的资源作为第一个参数:

http.get('http://localhost:1337/john', function(res){
    assert(200, res.statusCode)
    done()
})

Answer 2

http.get({path: '/john', port: 1337}, function(res){
    //...
});

应该管用.如果没有指定其他内容,http.get将假定端口80.