Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\Sistemas_gerais\code-ticket-responsivo\vendor\sebastian\diff\tests\DifferTest.php:17 Stack trace: #0 {main} thrown in C:\xampp\htdocs\Sistemas_gerais\code-ticket-responsivo\vendor\sebastian\diff\tests\DifferTest.php on line 17