Last modified: 2014-10-19 17:44:10 UTC
Steps to do: - open a page (using selenium) - take a screen shot (built-in into selenium) - compare (pixel by pixel) with the previous screen shot (using something like chunky_png) - report if the more than x percent of the pixels are not the same Repeat for interesting pages and browser+version/OS+version combinations.
It would also be interesting to compare screenshots taken in different browsers in the same test run.