how can i choose a specific testsuite to be executed?
$ phpunit --configuration config.xml
config.xml:
This is not possible in current versions of PHPUnit as evidenced by these messages in phpunit-user mailing list: http://thread.gmane.org/gmane.comp.php.phpunit.user/1302
But there is an alternative, you can simply pass a path to phpunit.
phpunit library/XXX
This would run all the tests in library/XXX directory
If this is not sufficient for you, another option is to use the @group annotation to divide tests into different categories that could then be run selectively.