Unit testing

• QtUnit? http://theleaf.be/projects/qtunit
• JUnit http://www.junit.org
• IntelliJ? http://intellij.com Commercial IDE with great refactoring support
• PHPUnit http://phpunit.sourceforge.net/
• SimpleTest? (for PHP) http://www.lastcraft.com/simple_test.php
• NUnit http://www.nunit.org/ xUnit for all .Net languages
• REBOLUnit http://rebol-unit.sourceforge.net/

• XPlanner for XP planning: http://www.xplanner.org
• OnTime? for XP planning: http://www.axosoft.com/
• TargetProcess? for XP planning: http://www.targetprocess.com
• Open source planning and tracking tool: http://ses-ppts.sourceforge.net

• FitNesse?, a wiki to write and execute acceptance tests http://www.fitnesse.org

• All kinds of XP-related tools at http://www.xprogramming.com/software.htm