Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/mountain/public_html/vendor/web-token/jwt-signature-algorithm-eddsa/Tests/EdDSASignatureTest.php:29 Stack trace: #0 {main} thrown in /home/mountain/public_html/vendor/web-token/jwt-signature-algorithm-eddsa/Tests/EdDSASignatureTest.php on line 29