Cucumber step definition to detect whether a disabled select option exists

select_option_disabled_step.rb

Then /^"([^"]*)" from "([^"]*)" within "([^"]*)" should be disabled$/ do |option_name, type_label, selector|
  with_scope(selector) do
    x=page.find(:xpath, '//body').all(:xpath, XPath.generate { |x| x.descendant(:select).descendant(:option)[x.attr(:disabled) == 'disabled'] })
    x.collect(&:text).should include(option_text)
  end
end