Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/repo/school-infix-v6.0/vendor/sabberworm/php-css-parser/tests/Sabberworm/CSS/ParserTest.php:13 Stack trace: #0 {main} thrown in /var/www/html/repo/school-infix-v6.0/vendor/sabberworm/php-css-parser/tests/Sabberworm/CSS/ParserTest.php on line 13