如何完全匹配使用：类选择器在watir-webdriver [英] how to exactly match using :class selector in watir-webdriver

问题描述

关于Watir 0.5.x
的向后不兼容更改查找元素：class现在匹配部分类属性。

如何获得旧的行为？也就是说以匹配确切的类名。

这是打破我的代码，在一种情况下：

 ＃expand all multiple records 
 while $ browser.div（：class =>expander）。exists？ 
 $ browser.div（：class =>expander）。click 
 end 
  

$ b b

因为一旦 .click ed， div 的 class strong>expander hasChildren（以及可能的其他类，具体取决于表行的颜色和内容）。

解决方案

要匹配确切的类名，您可以使用带有开头和结尾锚的正则表达式：

  $ browser.div（：class => / ^ expander $ / ）.exists？ 
  

这将完全匹配expander，而不是expander hasChildren p>

对于你的其他问题，如果有一个更好的方法来展开所有行，我认为这确实取决于页面的HTML是什么样子。你有例子吗？当我有一个类似的问题与类似的控件，我能够使用divs周围的可点击的结构，使搜索更具体。

Regarding the backwards-incompatible change of Watir 0.5.x Finding elements by :class now matches partial class attributes.

How do I get the old behavior? I.e. to match exact class name.

It is breaking my code, in one case:

# expand all multiple records
 while  $browser.div(:class => "expander").exists?  
  $browser.div(:class => "expander").click
 end

because once .clicked, the div's class becomes "expander hasChildren" (and possibly other classes, depending on table row's color and content). Is there a better way to write that code that expands all rows that are still collapsed?

解决方案

To match the exact class name, you could use a regex with starting and ending anchors:

$browser.div(:class => /^expander$/).exists?

This would match exactly "expander" but not "expander hasChildren" or "something expander".

For your other question regarding if there is a better way to expand all rows, I think it really depends on what the HTML for the page looks like. Do you have an example? When I had a similar problem with a similar control, I was able to use the structure of the divs around the clickable ones to make the search more specific.

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