Everyone knows retro fitting tests is not the best way to go, but you can't escape the fact that sometimes it's unavoidable. Writing integration tests after the fact can sometimes be tricky, especially when dealing with complex xpaths or trying to assert against deeply buried elements. So if you're as tired of digging around in web inspector as I am, try this instead:
gem install capybara
And then fire up console:
require 'capybara/dsl' => true include Capybara::DSL => Object Capybara.default_driver = :selenium => :selenium visit "http://google.co.uk" => ""
Watch and smile as Firefox opens, and then access anything on it with
page.fill_in('q', :with => 'capybara') => "" page.click_link "jnicklas/capybara - GitHub" => "ok"
And by getting instant feedback in this way, those steps will write themselves.