Download and install Composer: https://getcomposer.org/download/
Download PHPUnit: https://phpunit.de/getting-started/phpunit-8.html
Rest of crap. Will add later.
Open up bash terminal and make sure you are in the root of the folder.
./vendor/bin/phpunitYou need to make sure you have Xdebug installed and enabled. Open up bash terminal in the root of the project folder and run the command below.
php -ini|grep 'xdebug support'If it is enabled you will get the xdebug support => enabled success message.
After that, run the command below.
./vendor/bin/phpunit --coverage-html target --whitelist=tests