Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/flighto/e-commerce/vendor/polishsymfonycommunity/symfony-mocker-container/tests/DependencyInjection/MockerContainerTest.php:8 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/polishsymfonycommunity/symfony-mocker-container/tests/DependencyInjection/MockerContainerTest.php on line 8