I use Simpletest test suites to run all tests, with different configuration methods. I've created one suite per config method, and it sets up the environment and then runs all tests.
Take a look at Adapter.php and Constants.php if that's unclear.
Now there seems to be support for test suites in PHPUnit, but as I understand it, it's merely for grouping tests with no support for setting up the environment or running PHP scripts.
How can I convert my test suites to PHPUnit? I'm open to rethink how the tests are structured :)