Last updated February 24, 2009.
Drupal has testing, in accordance with Dries' recommendations for the Drupal 7 development cycle. This page serves as a basis for organizing the community around testing-related initiatives, particularly tests in core and testing.drupal.org. Some of these have issues on d.o and others are still in the brainstorming phase. Feel free to add your own ideas or add comments to discuss the ones already here.