Fatal error: Uncaught Error: Class 'Drupal\FunctionalJavascriptTests\WebDriverTestBase' not found in /var/www/html/tmp/contrib/codemirror_editor/tests/src/FunctionalJavascript/TestBase.php:10 Stack trace: #0 {main} thrown in /var/www/html/tmp/contrib/codemirror_editor/tests/src/FunctionalJavascript/TestBase.php on line 10