Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/rollschomq/test-next.rollschool.pl/vendor/serwersms/serwersms-php-client/tests/PaymentsTest.php:5 Stack trace: #0 {main} thrown in /home/rollschomq/test-next.rollschool.pl/vendor/serwersms/serwersms-php-client/tests/PaymentsTest.php on line 5