Then /^I should see the css file "([^"]*)"$/ do |path|
  step %{I should see the css file "#{path}" of media "screen"}  
end

Then /^I should see the css file "([^"]*)" of media "([^"]*)"$/ do |path, media|
  page.should have_xpath("//link[contains(@href, /stylesheets/#{path}) and contains(@media, #{media})]")
end

Then /^I should see the js file "([^"]*)"$/ do |path|
  page.should have_xpath("//script[contains(@src, /javascripts/#{path})]")
end
