为什么我必须睡觉或等待使用watir-webdriver和Firefox？

问题描述

我正在升级我的watir脚本，所以我只想对watir-webdriver等待页面加载>这个话题发表评论，但是因为我有1个rep我不能。到watir-webdriver和我在Firefox上运行的第一个测试产生：

  Selenium :: WebDriver :: Error :: NoSuchElementError：Unable定位元素：{method：tag name，selector：body} 
  

当我所做的只是登录到我的应用程序（工作正常），单击构建信息链接，并做一个：

pre $ @ browser.text


这一直发生。在阅读这里之后，我点击了之后，并在@ browser.text之前进行了一次睡眠。我的结论显然是，Firefox驱动程序不会等到页面加载完成才能尝试

   - > POST session / 8607aaa2-d72d-448a-85e1-3f96a1766da1 / element 
 {value：body，using：tag name} 
   
解决方案
 Watir WebDriver应该等到一个页面准备好了，但问题是这么多的内容是动态生成的，确实没有一个明确的每一个准备就绪的定义。
 
 
这是等待帮助器方法的地方：  
 
 
 
找到一个你知道你期望的元素，并使用类似的东西： 
 
 
  require'watir-webdriver'
b = Watir :: Browser.start'bit.ly/watir-webdriver-demo'
 b.select_list（：id =>'entry_1'）。wait_until_present 
  
 更新： 
 
 
我认为您的问题与本机事件有关。尝试禁用本地事件 
 
 
  profile = Selenium :: WebDriver :: Firefox :: Profile.new 
 profile.native_events = false 
b = Watir :: Browser.new WEB_DRIVER，：profile => profile 
  
 
Well i wanted to comment on watir-webdriver wait for page load>this topic but since i have 1 rep I cannot.
I'm upgrading my watir scripts to watir-webdriver and the first test i ran on Firefox yielded:
Selenium::WebDriver::Error::NoSuchElementError: Unable to locate element: {"method":"tag name","selector":"body"}
when all I was doing was logging into my app (which worked fine), clicking the Build Info link, and doing a:
@browser.text
This happened consistently.  After reading on here, I put a sleep after the click and before the @browser.text and it worked.  My conclusion is obviously that the Firefox driver is not waiting until the page is loaded before trying the
-> POST session/8607aaa2-d72d-448a-85e1-3f96a1766da1/element
{"value":"body","using":"tag name"}
So my question is is this an isolated incident (calling @browser.body, which is not an entirely typical call) or am I going to have to use waits?  It seems the whole beauty of watir is lost if I cannot expect the driver to wait until the browser is in a ready state.  Also, is there a dev google group or something like that for watir-webdriver?  I have the feeling I'm going to see more and more issues (several with IE9).  I'll probably also ask on Alister's blog (which rocks, btw).
 解决方案 
Watir-WebDriver should wait until a page is ready, but the problem is so much content is dynamically generated, there really isn't a every a clear definition of ready.
This is where the waiting helper methods shine: http://watirwebdriver.com/waiting/
Find an element you know you expect, and use something like:
require 'watir-webdriver'
b = Watir::Browser.start 'bit.ly/watir-webdriver-demo'
b.select_list(:id => 'entry_1').wait_until_present
Update:
I think your problem is native events related. Try disabling native events
profile = Selenium::WebDriver::Firefox::Profile.new
profile.native_events = false
b = Watir::Browser.new WEB_DRIVER, :profile => profile
                        
这篇关于为什么我必须睡觉或等待使用watir-webdriver和Firefox？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！