[GitHub] [airflow] mik-laj commented on a diff in pull request #23359: Validate DAG owner to be a string.

[GitBox <gi...@apache.org>]

mik-laj commented on code in PR #23359:
URL: https://github.com/apache/airflow/pull/23359#discussion_r861997869


##########
tests/cluster_policies/__init__.py:
##########
@@ -27,6 +27,9 @@
 
 # [START example_cluster_policy_rule]
 def task_must_have_owners(task: BaseOperator):
+    if task.owner and not isinstance(task.owner, str):
+        raise AirflowClusterPolicyViolation(f'''owner should be a string. Current value: {task.owner}''')

Review Comment:
   ```suggestion
           raise AirflowClusterPolicyViolation(f'''owner should be a string. Current value: {task.owner!r}''')
   ```



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