LiamHecht commented on code in PR #75562:
URL: https://github.com/apache/airflow/pull/75562#discussion_r4502597255
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airflow-core/tests/unit/models/test_trigger.py:
##########
@@ -180,6 +180,96 @@ def test_clean_unused(session, dag_maker):
assert {result.id for result in results} == {trigger1.id, trigger4.id,
trigger5.id, trigger6.id}
+def _create_unused_trigger(session) -> int:
+ trigger = Trigger(classpath="airflow.triggers.testing.SuccessTrigger",
kwargs={})
+ session.add(trigger)
+ session.commit()
+ return trigger.id
+
+
+def _clean_unused_adding_reference_before_delete(session, trigger_id,
add_reference):
+ """Run clean_unused, executing ``add_reference`` right before its DELETE
(#72061)."""
+ reference_added = False
+
+ def add_reference_before_delete(connection, cursor, statement, parameters,
context, executemany):
+ nonlocal reference_added
+ normalized_statement = " ".join(statement.lower().replace('"',
"").replace("`", "").split())
+ if not reference_added and "delete from trigger" in
normalized_statement:
+ reference_added = True
Review Comment:
Agreed, I removed the nonlocal. The hook no longer keeps any state: it adds
the reference whenever it sees the DELETE FROM trigger statement, and each test
then asserts the trigger survived, which also shows the reference was added.
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