Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\vendor\lcobucci\jwt\test\functional\HmacTokenTest.php:21 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\vendor\lcobucci\jwt\test\functional\HmacTokenTest.php on line 21