Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/congngyh/pgairdc.org/vendor/endroid/qr-code/tests/QrCodeTest.php:34 Stack trace: #0 {main} thrown in /home/congngyh/pgairdc.org/vendor/endroid/qr-code/tests/QrCodeTest.php on line 34