Parser tests can be run either via PHPUnit or by using the standalone
parserTests.php in this directory. The standalone version provides more
options.
To run parser tests via PHPUnit:
$ cd tests/phpunit
./phpunit.php --testsuite parsertests
You can optionally filter by title using --filter, e.g.
./phpunit.php --testsuite parsertests --filter="T6400"