In this new post to his blog Till Klampaeckel talks about two tools for front-end interface testing - Selenium and Saucelenium - and how he used the latter in his application testing.
Selenium and Saucelenium have the same root - in fact Saucelenium is a Selenium fork. While the Selenium project seems to focus on 2.x currently, stable 1.x development seems to really happen at Saucelabs. That is if you call a commit from January 22nd of this year active development.
He talks about the installation process (guided by the README from his fork) and the tool he had to install to get it to work for him - xserver-xorg. He includes a sample test to give you an idea of what can be done with the testing tool. It loads the page imitating Chrome and looks for certain text on two different pages as well as check one of the links.