Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\xampp\htdocs\print-bk\vendor\phenx\php-svg-lib\tests\Svg\StyleTest.php:15 Stack trace: #0 {main} thrown in C:\xampp\htdocs\print-bk\vendor\phenx\php-svg-lib\tests\Svg\StyleTest.php on line 15