driver.navigate.refresh不工作与硒的webdriver预期

Question

请按照下面的代码：

driver.get "https://example.com/" 
driver.find_element(:class, "button").submit 
driver.navigate.refresh 
wait = Selenium::WebDriver::Wait.new(:timeout => 10) # seconds 
element = wait.until { driver.find_element(:name => "username") } 

我写的代码在我牢记直到它包含element : username来的页面，继续前一页刷新。但看起来我的代码不符合该要求。因此脚本抛出如下错误“

错误

C:/Ruby193/lib/ruby/gems/1.9.1/gems/selenium-webdriver-2.27.2/lib/selenium/webdr 
iver/common/wait.rb:57:in `until': timed out after 10 seconds (Unable to locate 
element: {"method":"name","selector":"username"})} (Selenium::WebDriver::Error:: 
TimeOutError) 

什么好主意来满足我的要求吗？

感谢，

Answer 1

我还没有碰到过一个内置来 - 在selenium-webdriver中这样做，所以我会做以下事情：

#Submit your first page 
driver.get "https://example.com/" 
driver.find_element(:class, "button").submit 

#Refresh page until your element appears 
end_time = Time.now + 10 #seconds 
begin 
    element = driver.find_element(:name => "username") 
rescue Selenium::WebDriver::Error::NoSuchElementError 
    if Time.now < end_time 
     driver.navigate.refresh 
     retry 
    end 
end 

基本上这是试图找到元素。如果找不到，则捕获异常，刷新页面并重新尝试。重复此操作直到达到时间限制hsa。