Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /var/www/html/invoice-backend/vendor/namshi/jose/tests/Namshi/JOSE/Test/JWSTest.php:12 Stack trace: #0 {main} thrown in /var/www/html/invoice-backend/vendor/namshi/jose/tests/Namshi/JOSE/Test/JWSTest.php on line 12