Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in D:\xampp\htdocs\ssw_doc\vendor\paragonie\random_compat\tests\full\DieHardTest.php:2 Stack trace: #0 {main} thrown in D:\xampp\htdocs\ssw_doc\vendor\paragonie\random_compat\tests\full\DieHardTest.php on line 2