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