*
* This entity type starts out non-revisionable and non-translatable, but during
* an update test it can be made revisionable and translatable using the helper
- * methods from \Drupal\system\Tests\Entity\EntityDefinitionTestTrait.
+ * methods from
+ * \Drupal\Tests\system\Functional\Entity\Traits\EntityDefinitionTestTrait.
*
* @ContentEntityType(
* id = "entity_test_update",