itholic commented on a change in pull request #35236:
URL: https://github.com/apache/spark/pull/35236#discussion_r786408066
##########
File path: python/pyspark/pandas/tests/test_typedef.py
##########
@@ -56,6 +56,23 @@
class TypeHintTests(unittest.TestCase):
+ def test_infer_schema_with_no_return(self):
+ def try_infer_return_type():
+ def f():
+ pass
+
+ infer_return_type(f)
+
+ self.assertRaisesRegex(TypeError, "Unsupported callable",
try_infer_return_type)
+
+ def try_infer_return_type():
+ def f() -> None:
+ pass
+
+ infer_return_type(f)
+
+ self.assertRaisesRegex(TypeError, "not understood",
try_infer_return_type)
Review comment:
This too, It would be great if we can show the message more explicitly.
e.g. "None type is not acceptable for the function passed to
`infer_return_type`."
or something.
##########
File path: python/pyspark/pandas/tests/test_typedef.py
##########
@@ -56,6 +56,23 @@
class TypeHintTests(unittest.TestCase):
+ def test_infer_schema_with_no_return(self):
+ def try_infer_return_type():
+ def f():
+ pass
+
+ infer_return_type(f)
+
+ self.assertRaisesRegex(TypeError, "Unsupported callable",
try_infer_return_type)
Review comment:
Can we refine the message bit more explicitly ??
e.g. "A return value is required for the function passed to
`infer_return_type`."
or something.
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