Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/pdfwriter/vendor/league/glide/tests/Manipulators/WatermarkTest.php:9 Stack trace: #0 {main} thrown in /var/www/pdfwriter/vendor/league/glide/tests/Manipulators/WatermarkTest.php on line 9