Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/clienti2020/public_html/novaballet.it/vendor/sebastian/comparator/tests/SplObjectStorageComparatorTest.php:23 Stack trace: #0 {main} thrown in /home/clienti2020/public_html/novaballet.it/vendor/sebastian/comparator/tests/SplObjectStorageComparatorTest.php on line 23