New on the Debuggable blog today there's this post from Tim Koschutzki about a new feature he's contributed back to the CakePHP project. It allows you to run tests on the command line without having to worry about loading up a web interface to check your code.
It allows you to run all of the following: all core testcases at once, all core test groups, each core test case individually, all application-specific testcases at once, all application-specific test groups and each core test case individually. It also supports plugins, which means you can run plugin cases and groups.
He includes some samples of how it works - a few command line calls and what the output looks like.