Use PHPUnit built in data provider

PSR-0 is deprecated since 2014-10-21, see http://www.php-fig.org/psr/psr-0/
OK I get the idea, and I like the way it avoids the need for a loop in the test
Still, I really find interesting to declare the dataset in another place + with another format for better accessibilty to non-dev. Could we imagine that I call my csv loader inside the phpunit loader ? (getChunk, etc...)