无法在mocha测试中将socket.io-client连接到服务器

时间:2016-08-03 21:16:32

标签: node.js testing socket.io mocha

尝试将socket.io-client连接到节点服务器我使用DEBUG = *

获得以下错误
mocha:runner run suite Chat Server Message Events +1ms 
  Message Events
socket.io-client:url parse http://localhost:5000 +1s
socket.io-client ignoring socket cache for http://localhost:5000 +0ms
socket.io-client:manager readyState closed +1ms
socket.io-client:manager opening http://localhost:5000 +2ms
engine.io-client:socket creating transport "websocket" +1ms
engine.io-client:socket setting transport websocket +7ms
socket.io-client:manager connect attempt will timeout after 20000 +1ms
socket.io-client:manager readyState opening +1ms

engine.io-client:socket socket error 
{"description":
  {"code":"ENOENT",
   "errno":"ENOENT",
   "syscall":"connect",
   "target":{"domain":null,
             "_events":{},
             "_maxListeners":10,
             "_socket":null,
             "_ultron":null,
             "_closeReceived":false,
             "bytesReceived":0,
             "readyState":0,
             "supports":{"binary":true},
             "extensions":{},
             "_isServer":false,
             "url":"ws://localhost:5000/socket.io/?EIO=3&transport=websocket",
             "protocolVersion":13,
             "binaryType":"buffer"}}} +2ms

当我在浏览器上使用socket.io-client时,使用相同的套接字配置时,这种情况不会发生。

以下是测试代码:

var server = require('myServer');
var io = require('socket.io-client');

var url = 'http://localhost:5000';
var options = {
  transports: ['websocket'],
  'force new connection': true
};

var sender;

describe("Server Test", function () {
  it('Should login user', function (done) {
    sender = io(url, options);
  });
});

这是服务器代码:

var express = require('express');
var app = express();
var server = require('http').Server(app);
var io = require('socket.io')(server);

io.on('connection', function (socket) {
  console.log("connect");
});

server.listen(5000);

服务器正常运行。当scoket.io-client从浏览器运行但未在测试中时,它会显示日志消息。

有人能给我一个线索,为什么会这样?

1 个答案:

答案 0 :(得分:0)

由于您正在测试,您可能在nodejs环境中定义了global.window。并且this代码行完全不期望它

您应该删除global.window对象或编写类似global.WebSocket = require('ws');的内容或删除transports: ['websocket']