Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in C:\xampp\htdocs\demo_old\vendor\gumlet\php-image-resize\test\ImageResizeTest.php:7 Stack trace: #0 {main} thrown in C:\xampp\htdocs\demo_old\vendor\gumlet\php-image-resize\test\ImageResizeTest.php on line 7