Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /mnt/www/fss/crm/vendor/sebastian/diff/tests/LCS/LongestCommonSubsequenceTest.php:15 Stack trace: #0 {main} thrown in /mnt/www/fss/crm/vendor/sebastian/diff/tests/LCS/LongestCommonSubsequenceTest.php on line 15