Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/roberto2666/portalchines.com.br/vendor/climba-commerce/mercadopago-sdk-php/tests/MercadoPago/Client/Integration/User/UserClientITTest.php:14 Stack trace: #0 {main} thrown in /home/roberto2666/portalchines.com.br/vendor/climba-commerce/mercadopago-sdk-php/tests/MercadoPago/Client/Integration/User/UserClientITTest.php on line 14