Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\vendor\ralouphie\getallheaders\tests\GetAllHeadersTest.php:3 Stack trace: #0 {main} thrown in C:\xampp\htdocs\OFFLINE\Uawa\laravel-version\laravel\vendor\ralouphie\getallheaders\tests\GetAllHeadersTest.php on line 3