Fatal error: Uncaught Error: Class "Drupal\Tests\views\Functional\ViewTestBase" not found in /home/qcsvlel/www/core/modules/responsive_image/tests/src/Functional/ViewsIntegrationTest.php:17 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/responsive_image/tests/src/Functional/ViewsIntegrationTest.php on line 17