Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/wwvicp/public_html/API2/vendor/simplesoftwareio/simple-qrcode/tests/DataTypes/SMSTest.php:6 Stack trace: #0 {main} thrown in /home/wwvicp/public_html/API2/vendor/simplesoftwareio/simple-qrcode/tests/DataTypes/SMSTest.php on line 6