Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/apikharedi/public_html/api/vendor/srmklive/paypal/tests/Unit/AdapterTest.php:10 Stack trace: #0 {main} thrown in /home/apikharedi/public_html/api/vendor/srmklive/paypal/tests/Unit/AdapterTest.php on line 10