step_to_match_list_item.rb

def within_list(css_class)
  css_selector = css_class.gsub(/ /, '.') #stack the css classes for selection
  list = current_dom.at("ol.#{css_selector}") || current_dom.at("ul.#{css_selector}") # Could add an opt param to the method to make this explicit - for now we don't care
  assert_not_nil(list, "Expected to find a ul or li tag matching the css class '#{css_class}'")
  yield list
end

Then /^I should see the text "(.*)" in the "(.*)" list$/ do |text, css_class| #"
  within_list(css_class) do |list|
    matching_list_items = list.search("li").select{ |li| strip_html_tags_from(li.inner_html) =~ escape_text_for_regexp(text) }
    assert(matching_list_items.length > 0, "Expected to find at least one list item matching #{escape_text_for_regexp(text)} in this HTML fragment:\n#{list.inner_html}")
  end
  dump_page
end