Writing tests about aliased functions

Hello everyone, I would like to know if phptests should cover aliased PHP functions like get_required_files(). I can see at http://gcov.php.net/viewer.php?version=PHP_5_3&func=tested_functions that many functions are not tested, and some of them are aliases. Is this an expected behaviour or not ? Also, could you tell me when is refreshed all gcov.php.net data (code coverage, valgrind ...) ? Latest update is 10 days ago, and I wanted to write some tests about not covered code (and I don't want to do work that has already been done - especially in this worlwide test fest period :) ). Thank you Olivier