Run any shell command inside Quibble test env
To generate per patch code coverage, all built-in test commands should
be skipped and replaced by a script that generates the coverage. Such a
script would be:
cd extensions/Foobar phpunit-patch-coverage check \ --command "php -d zend_extension=xdebug.so ../../tests/phpunit/phpunit.php" \ --html /tmp/coverage-Foobar.html
I still need Quibble to do the installation and spawns the backends.
Add a '--commands' switch that lets one execute commands INSTEAD OF the
built-in stages. Each command runs relatively to MediaWiki installation path.