Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/leadezmn/virtual.leaderschristianacademy.co.za/vendor/sebastian/diff/tests/ParserTest.php:23 Stack trace: #0 {main} thrown in /home/leadezmn/virtual.leaderschristianacademy.co.za/vendor/sebastian/diff/tests/ParserTest.php on line 23