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[3.12] gh-108000: Test that lambda also has __type_params__ (GH-108002) #108019

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Merged
Yhg1s merged 1 commit into from
Aug 17, 2023
Merged

[3.12] gh-108000: Test that lambda also has __type_params__ (GH-108002) #108019

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17 changes: 10 additions & 7 deletions Lib/test/test_funcattrs.py
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Original file line number Diff line number Diff line change
Expand Up @@ -194,16 +194,19 @@ def test___qualname__(self):
def test___type_params__(self):
def generic[T](): pass
def not_generic(): pass
lambda_ = lambda: ...
T, = generic.__type_params__
self.assertIsInstance(T, typing.TypeVar)
self.assertEqual(generic.__type_params__, (T,))
self.assertEqual(not_generic.__type_params__, ())
with self.assertRaises(TypeError):
del not_generic.__type_params__
with self.assertRaises(TypeError):
not_generic.__type_params__ = 42
not_generic.__type_params__ = (T,)
self.assertEqual(not_generic.__type_params__, (T,))
for func in (not_generic, lambda_):
with self.subTest(func=func):
self.assertEqual(func.__type_params__, ())
with self.assertRaises(TypeError):
del func.__type_params__
with self.assertRaises(TypeError):
func.__type_params__ = 42
func.__type_params__ = (T,)
self.assertEqual(func.__type_params__, (T,))

def test___code__(self):
num_one, num_two = 7, 8
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