Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/vulpesdelivery/public_html/paystack-php-master/vendor/nategood/httpful/tests/Httpful/requestTest.php:7 Stack trace: #0 {main} thrown in /home/vulpesdelivery/public_html/paystack-php-master/vendor/nategood/httpful/tests/Httpful/requestTest.php on line 7