问题
I have the span:
<span disabled="disabled">Edit Member</span>
When I try to get the value of the disabled attribute:
page.in_iframe(:id => 'MembersAreaFrame') do |frame|
expect(page.span_element(:xpath => "//span[text()='Edit Member']", :frame => frame).attribute('disabled')).to eq("disabled")
end
I get:
expected: "disabled"
got: "true"
How do I get the value of specified attribute instead of a boolean value?
回答1:
The Page-Object gem's attribute method does not do any formatting of the attribute value. It simply returns what is returned from Selenium-WebDriver (or Watir-Webdriver).
In the case of boolean attributes, this means that true or false will be returned. From the Selenium-WebDriver#attribute documentation:
The following are deemed to be “boolean” attributes, and will return either “true” or “false”:
async, autofocus, autoplay, checked, compact, complete, controls, declare, defaultchecked, defaultselected, defer, disabled, draggable, ended, formnovalidate, hidden, indeterminate, iscontenteditable, ismap, itemscope, loop, multiple, muted, nohref, noresize, noshade, novalidate, nowrap, open, paused, pubdate, readonly, required, reversed, scoped, seamless, seeking, selected, spellcheck, truespeed, willvalidate
As you can see, the "disabled" attribute is included in this list and thus returns a boolean.
If you really want to check the actual attribute value, you will have to parse the HTML. Unless the HTML is simple, I would suggest using Nokogiri (or other HTML parser) rather than writing your own. In Nokogiri:
require 'nokogiri'
# Get the HTML of the span
span_html = page.in_iframe(:id => 'MembersAreaFrame') do |frame|
page.span_element(:xpath => "//span[text()='Edit Member']", :frame => frame).html
end
# Parse the span
doc = Nokogiri::HTML.fragment(span_html)
root_element = doc.at_css('*')
# Check the disabled attribute of the root element (ie the span)
expect(root_element['disabled']).to eq("disabled")
来源：https://stackoverflow.com/questions/30983017/get-the-actual-value-of-a-boolean-attribute