Fatal error: Uncaught Error: Class "Drupal\Tests\text\Unit\Migrate\d6\TextFieldTest" not found in /home/www/drupal8/test/core/modules/text/tests/src/Unit/Migrate/d7/TextFieldTest.php:12 Stack trace: #0 {main} thrown in /home/www/drupal8/test/core/modules/text/tests/src/Unit/Migrate/d7/TextFieldTest.php on line 12