raphaelauv commented on code in PR #37267:
URL: https://github.com/apache/airflow/pull/37267#discussion_r1483990858
##########
tests/models/test_taskmixin.py:
##########
@@ -244,3 +270,67 @@ def test_set_downstream_list(self, dag_maker):
assert [] == op_b.upstream_list
assert [op_a] == op_d.upstream_list
assert {op_a, op_b} == set(op_c.upstream_list)
+
+ def test_set_upstream_inner_list(self, dag_maker):
+ with dag_maker("test_set_upstream_inner_list"):
+ op_a = EmptyOperator(task_id="a")
+ op_b = EmptyOperator(task_id="b")
+ op_c = EmptyOperator(task_id="c")
+ op_d = EmptyOperator(task_id="d")
+ with pytest.raises(AttributeError) as e_info:
+ [op_d << [op_c, op_b]] << op_a
+
+ assert str(e_info.value) == "'list' object has no attribute
'update_relative'"
+
+ assert [] == op_b.upstream_list
+ assert [] == op_c.upstream_list
+ assert {op_b, op_c} == set(op_d.upstream_list)
+
+ def test_set_downstream_inner_list(self, dag_maker):
+ with dag_maker("test_set_downstream_inner_list"):
+ op_a = EmptyOperator(task_id="a")
+ op_b = EmptyOperator(task_id="b")
+ op_c = EmptyOperator(task_id="c")
+ op_d = EmptyOperator(task_id="d")
+
+ op_a >> [[op_b, op_c] >> op_d]
+
+ assert [] == op_b.upstream_list
Review Comment:
Existing behavior
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