This file describes an alternative way of testing from that in README since the README method didn't work for me. - Put a LocalSettings.php in the parent directory. If you checked out mediawiki/trunk/phase3 as a directory called mediawiki, then this would go in your - Install PHPUnit. I used version 3.3.16 from Ubuntu. ("aptitude install phpunit"). - Invoke phpunit directly instead of using make. This uses the phpunit.xml file to run the tests. - Fix broken tests. - Label currently broken tests in the group Broken and they will not be run by phpunit. You can add them to the group by putting the following comment at the top of the file: /** * @group Broken */ NOTE: I haven't yet determined why but my PHP installation would sometimes segfault while linting the files. PHPUnit uses "php -l" to check file syntax.