Sheba is a project mainly written in Perl, it's free.
Sheba is a little command-line application for automatically smoke-testing Parrot under various configurations.
It provides two interfaces:
sheba.pl -- builds and tests various configurations of the Parrot source tree in the current directory. nicaule.pl -- like the above, but integrates with Git. Automatically pulls the latest changes, and tests one or more branches in turn.