>>> [!note] Migrated issue <!-- Drupal.org comment --> <!-- Migrated from issue #3538833. --> Reported by: [d34dman](https://www.drupal.org/user/751698) >>> <ul> <li>Write kernel tests to cover: <ul> <li>Execution of a simple 2-node linear workflow.</li> <li>Error handling and job recording on failure.</li> <li>Validation of DAG compilation and cycle detection.</li> </ul> </li> </ul>