turbaszek commented on a change in pull request #10349:
URL: https://github.com/apache/airflow/pull/10349#discussion_r471976937
##########
File path: tests/operators/test_python.py
##########
@@ -327,6 +328,103 @@ def
test_python_operator_python_callable_is_callable(self):
with pytest.raises(AirflowException):
task_decorator(not_callable, dag=self.dag)
+ def test_infer_multiple_outputs_using_typing(self):
+ @task_decorator
+ def identity_dict(x: int, y: int) -> Dict[str, int]:
+ return {"x": x, "y": y}
+
+ assert identity_dict(5, 5).operator.multiple_outputs is True #
pylint: disable=maybe-no-member
+
+ @task_decorator
+ def identity_tuple(x: int, y: int) -> Tuple[int, int]:
+ return x, y
+
+ assert identity_tuple(5, 5).operator.multiple_outputs is True #
pylint: disable=maybe-no-member
+
+ @task_decorator
+ def identity_int(x: int) -> int:
+ return x
+
+ assert identity_int(5).operator.multiple_outputs is False # pylint:
disable=maybe-no-member
+
+ @task_decorator
+ def identity_notyping(x: int):
+ return x
+
+ assert identity_notyping(5).operator.multiple_outputs is False #
pylint: disable=maybe-no-member
+
+ @conf_vars({("core", "enable_xcom_pickling"): "True"})
Review comment:
```suggestion
```
Let's remove it as pickle is not the default option. If the problem is with
`Set` then let's use `Tuple`
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