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gh-108000: Test that lambda also has __type_params__ (#108002)

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Nikita Sobolev 2023-08-16 16:22:18 +03:00 • committed by GitHub
parent e35c722d22
commit a8d440b383
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1 changed files with 10 additions and 7 deletions
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17
Lib/test/test_funcattrs.py
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@ -194,16 +194,19 @@ class FunctionPropertiesTest(FuncAttrsTest):
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