Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in /home/opcon/src/dat/lib/vendor/bk/firebase/php-jwt/tests/JWTTest.php:4 Stack trace: #0 {main} thrown in /home/opcon/src/dat/lib/vendor/bk/firebase/php-jwt/tests/JWTTest.php on line 4