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[4.2.x] Refs #34118 -- Fixed FunctionalTests.test_cached_property_reuse_different_names() on Python 3.12+.

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Python 3.12+ no longer wraps exceptions in __set_name__, see
55c99d97e1
Backport of fc9c90d9c4611d441d2617a7d74f622b1f520f7c from main
This commit is contained in:
Mariusz Felisiak 2023-05-23 12:56:33 +02:00
parent c78a4421de
commit bf5249fc8e
1 changed files with 15 additions and 10 deletions
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25
tests/utils_tests/test_functional.py
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@ -4,6 +4,7 @@ from django.test import SimpleTestCase
from django.test.utils import ignore_warnings from django.test.utils import ignore_warnings
from django.utils.deprecation import RemovedInDjango50Warning from django.utils.deprecation import RemovedInDjango50Warning
from django.utils.functional import cached_property, classproperty, lazy from django.utils.functional import cached_property, classproperty, lazy
from django.utils.version import PY312
class FunctionalTests(SimpleTestCase): class FunctionalTests(SimpleTestCase):
@ -156,7 +157,18 @@ class FunctionalTests(SimpleTestCase):
def test_cached_property_reuse_different_names(self): def test_cached_property_reuse_different_names(self):
"""Disallow this case because the decorated function wouldn't be cached.""" """Disallow this case because the decorated function wouldn't be cached."""
with self.assertRaises(RuntimeError) as ctx: type_msg = (
"Cannot assign the same cached_property to two different names ('a' and "
"'b')."
)
if PY312:
error_type = TypeError
msg = type_msg
else:
error_type = RuntimeError
msg = "Error calling __set_name__"
with self.assertRaisesMessage(error_type, msg) as ctx:
class ReusedCachedProperty: class ReusedCachedProperty:
@cached_property @cached_property
@ -165,15 +177,8 @@ class FunctionalTests(SimpleTestCase):
b = a b = a
self.assertEqual( if not PY312:
str(ctx.exception.__context__), self.assertEqual(str(ctx.exception.__context__), str(TypeError(type_msg)))
str(
TypeError(
"Cannot assign the same cached_property to two different "
"names ('a' and 'b')."
)
),
)
def test_cached_property_reuse_same_name(self): def test_cached_property_reuse_same_name(self):
""" """