ashb commented on code in PR #73005:
URL: https://github.com/apache/airflow/pull/73005#discussion_r3993170278
##########
devel-common/src/tests_common/test_utils/mapping.py:
##########
@@ -18,31 +18,68 @@
from typing import TYPE_CHECKING
-from airflow.models.taskmap import TaskMap
+from sqlalchemy import select
+
+from airflow.models.taskinstance import TaskInstance
+from airflow.models.xcom import XCOM_RETURN_KEY, XComModel
if TYPE_CHECKING:
+ from collections.abc import Collection, Sequence
+
from sqlalchemy.orm import Session
from airflow.serialization.definitions.mappedoperator import Operator
+def push_mapped_length(ti: TaskInstance, value: Collection, *, session:
Session) -> None:
+ """Record ``value`` as ``ti``'s return value, usable as an expansion
input."""
+ XComModel.set(
+ key=XCOM_RETURN_KEY,
+ value=list(value),
Review Comment:
Given this is only in tests, and today, only list values can be mapped, this
is fine, but I'll guard against it.
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