Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/technoon/public_html/demo/yondy/vendor/sprain/swiss-qr-bill/tests/QrBillTest.php:11 Stack trace: #0 {main} thrown in /home/technoon/public_html/demo/yondy/vendor/sprain/swiss-qr-bill/tests/QrBillTest.php on line 11