Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/vendor/bacon/bacon-qr-code/test/Integration/ImagickRenderingTest.php:23 Stack trace: #0 {main} thrown in /var/www/html/vendor/bacon/bacon-qr-code/test/Integration/ImagickRenderingTest.php on line 23