Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in C:\laragon4\www\ApoyosPresidencia\vendor\karriere\pdf-merge\tests\PdfMergeTest.php:11 Stack trace: #0 {main} thrown in C:\laragon4\www\ApoyosPresidencia\vendor\karriere\pdf-merge\tests\PdfMergeTest.php on line 11