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[3.9] bpo-46413: properly test __{r}or__ code paths in _SpecialGenericAlias (GH-30640) #30693

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[3.9] bpo-46413: properly test __{r}or__ code paths in _SpecialGenericAlias (GH-30640) #30693

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8 changes: 8 additions & 0 deletions Lib/test/test_typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -494,6 +494,10 @@ def test_ellipsis_in_generic(self):
# Shouldn't crash; see https://github.com/python/typing/issues/259
typing.List[Callable[..., str]]

def test_or_and_ror(self):
Callable = self.Callable
self.assertEqual(Callable | Tuple, Union[Callable, Tuple])
self.assertEqual(Tuple | Callable, Union[Tuple, Callable])

class LiteralTests(BaseTestCase):
def test_basics(self):
Expand Down Expand Up @@ -3629,6 +3633,10 @@ class B: ...
A.register(B)
self.assertIsSubclass(B, typing.Mapping)

def test_or_and_ror(self):
self.assertEqual(typing.Sized | typing.Awaitable, Union[typing.Sized, typing.Awaitable])
self.assertEqual(typing.Coroutine | typing.Hashable, Union[typing.Coroutine, typing.Hashable])


class OtherABCTests(BaseTestCase):

Expand Down