list of tools for testing websites and web-applications
Konacha is a testing tool for JavaScript applications running on Rails.
In brief it integrates Selenium2 to simpletest framework of Drupal. From the beginning it was possible to run test in Firefox that opens pages of the simpletest sandbox. As we are in full control of browser we are able to test javascripts in it.
Microsoft provides virtual machine disk images to facilitate website testing in multiple versions of IE, regardless of the host operating system. Unfortunately, setting these virtual machines up without Microsoft's VirtualPC can be extremely difficult. The ievms scripts aim to facilitate that process using VirtualBox on Linux or OS X. With a single command, you can have IE7, IE8 and IE9 running in separate virtual machines.