Zombie.js「assert is not defined」for multiple visits？

我正在設置與Zombie.js和Mocha的集成測試，並遇到令人困惑的問題，即只有第一次調用似乎成功。我的規格如下所示：Zombie.js「assert is not defined」for multiple visits？

browser = new Browser site: "http://localhost:101010" 

describe '/docs', -> 
    ['app', 'server', 'timetable', 'util'].forEach (file) -> 
    describe "/#{file}.html", -> it "documents #{file}.coffee", (done) -> 
     browser.visit "/docs/#{file}.html", -> 
     browser.text('title').should.equal "#{file}.coffee" 
     do done

這些測試，它加載/docs/app.html的第一，通過無事。然而，所有的後續測試失敗，產生類似下面的堆棧跟蹤：

ReferenceError: assert is not defined 
    at Object.HTML5Parser.phases.inBody.startTagBody (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/parser.js:1828:4) 
    at Object.HTML5Parser.phases.base.processStartTag (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/parser.js:65:40) 
    at EventEmitter.Parser.do_token (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/parser.js:2436:21) 
    at EventEmitter.<anonymous> (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/parser.js:2457:30) 
    at EventEmitter.emit (events.js:117:20) 
    at EventEmitter.emitToken (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:99:9) 
    at emit_current_token (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:873:3) 
    at tag_name_state (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:400:4) 
    at EventEmitter.<anonymous> (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:941:10) 
    at EventEmitter.emit (events.js:95:17) 
    at EventEmitter.HTML5Tokenizer.pump (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:932:11) 
    at EventEmitter.HTML5Tokenizer.tokenize (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/tokenizer.js:89:23) 
    at EventEmitter.Parser.parse (/home/$USER/projects/timetable/node_modules/zombie/node_modules/html5/lib/html5/parser.js:2391:17) 
    at HtmlToDom.appendHtmlToElement (/home/$USER/projects/timetable/node_modules/zombie/node_modules/jsdom/lib/jsdom/browser/htmltodom.js:91:50) 
    at Object.innerHTML (/home/$USER/projects/timetable/node_modules/zombie/node_modules/jsdom/lib/jsdom/browser/index.js:481:17) 
    at Object.core.HTMLDocument.write (/home/$USER/projects/timetable/node_modules/zombie/node_modules/jsdom/lib/jsdom/level2/html.js:406:22) 
    at Object.exports.jsdom (/home/$USER/projects/timetable/node_modules/zombie/node_modules/jsdom/lib/jsdom.js:70:9) 
    at History._createDocument (/home/$USER/projects/timetable/node_modules/zombie/lib/zombie/history.js:174:22) 
    at /home/$USER/projects/timetable/node_modules/zombie/lib/zombie/history.js:126:30 
    at /home/$USER/projects/timetable/node_modules/zombie/lib/zombie/resources.js:147:16 
    at Request._callback (/home/$USER/projects/timetable/node_modules/zombie/lib/zombie/resources.js:335:16) 
    at Request.self.callback (/home/$USER/projects/timetable/node_modules/zombie/node_modules/request/main.js:120:22) 
    at Request.EventEmitter.emit (events.js:98:17) 
    at Request.<anonymous> (/home/$USER/projects/timetable/node_modules/zombie/node_modules/request/main.js:633:16) 
    at Request.EventEmitter.emit (events.js:95:17) 
    at IncomingMessage.<anonymous> (/home/$USER/projects/timetable/node_modules/zombie/node_modules/request/main.js:595:14) 
    at IncomingMessage.EventEmitter.emit (events.js:117:20) 
    at _stream_readable.js:872:14 
    at process._tickCallback (node.js:415:13)

是殭屍的browser.visit()不適合在多次調用，或者是有一些其他的問題嗎？

編輯要注意版本：

Node.js的v0.10.1
摩卡V1.8.1
柴V1.5.0
Zombie.js V1.4.1

來源

2013-03-29 00dani

看起來這是一個兼容性問題，在Node版本> = 0.10中出現，如此處所述：https://github.com/assaf/zombie/issues/487

在https://github.com/assaf/zombie/issues/487#issuecomment-15548684處提到的解決方法解決了我的特殊問題。我下面的代碼添加到我的testi/common.coffee文件導入立即殭屍前：

do patchEventEmitterToHideMaxListenerWarning = -> 
    return if global.eventEmitterPatched 
    global.eventEmitterPatched = true 
    events = require 'events' 
    Old = events.EventEmitter 
    events.EventEmitter = -> 
    this.setMaxListeners(0) 
    events.EventEmitter.prototype = Old.prototype

這樣做之後，我通過了所有測試毫無怨言。我預計這個問題將在未來的殭屍版本中修補，但現在上面的黑客渲染它可行。

來源

2013-03-29 12:18:18 00dani

Zombie.js「assert is not defined」for multiple visits？

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