Cucumber: Check if a select field contains a disabled option

CopyThen /^"([^"]*)" should be a disabled option for "([^"]*)"(?: within "([^\"]*)")?$/ do |value, field, selector|
  with_scope(selector) do
    field_labeled(field).find(:xpath, ".//option[text() = '#{value}'][@disabled]").should be_present
  end
end