EDIT

ref #8771 documenting phpUnit test execution

ref #8771 finetuning of statistical values display and more tests

ref #8771 more test cases

ref #8771 phpunit improving test suite setup

ref #8771 phpunit improving test suite setup

ref #8771 phpunit improving test suite setup

ref #8771 phpunit improving test suite setup

ref #8771 phpunit logging in junit xml format - renaming logfile

ref #8771 phpunit logging in junit xml format

fixing PHPUnit setup for php 7 and documenting its usage with PHPStorm