...Qooxdoo offers a wide range of widgets and UI components, plus powerful server I/O communication. Built-in unit testing framework with unit tests across the API and User Interface testing.
BugEye is an XML-based unit test creation framework. Being XML-based, it can be easily translated to almost any language. The current translations are C#, Java, JavaScript, and Visual Basic. Future translations include C++, Python, Perl, and PHP.
Testpilot is a browser based unit testing framework for testing websites. With it you can record the keystrokes and mouse events for a session and play them back automatically. You can include assertions for values in inputs DIVs or JavaScript variables.