ephraimbuddy commented on a change in pull request #16823:
URL: https://github.com/apache/airflow/pull/16823#discussion_r664836811
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File path: tests/models/test_taskinstance.py
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@@ -1163,6 +1163,33 @@ def test_xcom_push_flag(self):
ti.run()
assert ti.xcom_pull(task_ids=task_id, key=models.XCOM_RETURN_KEY) is
None
+ def test_xcom_push_with_a_specified_key_in_operator(self):
+ """
+ Tests the option for Operators to push XComs with a given key
+ """
+ key = 'mykey'
+ value = 'hello'
+ task_id = 'test_no_xcom_push'
+ dag = models.DAG(dag_id='test_xcom')
+
+ # XCom pushed with key=mykey
+ task = PythonOperator(
+ task_id=task_id,
+ dag=dag,
+ python_callable=lambda: value,
+ xcom_key=key,
Review comment:
I have provided answers to why we may need it in all operators. Check
https://github.com/apache/airflow/pull/16823#issuecomment-875037822
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