Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/revofinancial/public_html/simplejwt2222/kelvinmo/simplejwt/tests/KeySetTest.php:6 Stack trace: #0 {main} thrown in /home/revofinancial/public_html/simplejwt2222/kelvinmo/simplejwt/tests/KeySetTest.php on line 6