Testing PEAR Packages

Hey, I'm trying to write test suites for some packages at the moment, and wondered if anybody knows of a way to make them easier to use than currently. I'm using PHPUnit2, and have the problem of not being able to run my tests without building and installing a new version of the package first, due to "require_once("Package/Component.php");" calls which require the code to be in the include_path. I'm sure I could hack together a quick script which sets the include_path before running the test suite, but I'd rather know if there's a less hackish solution to the problem. Jon