Automation Test Tools for Agile

I’ve been asked several times over the past couple of months what are some of the automation test tools that work good in an Agile software development process.  Here’s a list of freeware and open source tools I’ve compiled over the past couple of years that have been recommended and/or used directly by teams I’ve worked with.  Even though I do have direct experience with some of these, this is not necessarily a direct endorsement of any of them nor is it meant to be an all inclusive list.  It’s just a short categorized list of those which have crossed my path enough to remember and provides a good starting point to guide others starting down the automation path.

Unit testing
JUnit - (open source)
HttpUnit – (open source)

Acceptance testing
Fit  - (freeware)
Fitnesse - (freeware)

Functional testing
WATIR - (open source)
Autoit - (freeware)
Selenium - (open source)

For the most complete list of test tools (both open source and for pay) I’ve seen compiled on the Internet, take a look at this site.  Also, Brett Pettichord, who is responsible for writing several tools himself, has an exhaustive review of many other open source tools for those that need even more information.