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