Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\sislicencias_new\vendor\simplesoftwareio\simple-qrcode\tests\ImageTest.php:6 Stack trace: #0 {main} thrown in C:\xampp\htdocs\sislicencias_new\vendor\simplesoftwareio\simple-qrcode\tests\ImageTest.php on line 6