Fatal error: Uncaught Error: Class "Drupal\Tests\field\Functional\FunctionalString\StringFieldTest" not found in /home/qcsvlel/www/core/modules/text/tests/src/Functional/TextFieldTest.php:21 Stack trace: #0 {main} thrown in /home/qcsvlel/www/core/modules/text/tests/src/Functional/TextFieldTest.php on line 21