[3.2.x] Refs #31732 -- Fixed django.utils.inspect caching for bound methods.

Thanks Alexandr Artemyev for the report, and Simon Charette for the
original patch.

Backport of 562898034f65e17bcdd2d951ac5236a1ec8ea690 from main

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/utils_tests/test_inspect.py b/tests/utils_tests/test_inspect.py
index 9ea8ae84a4..ae83d675fe 100644
--- a/tests/utils_tests/test_inspect.py
+++ b/tests/utils_tests/test_inspect.py
@@ -22,6 +22,16 @@ class Person:
 
 
 class TestInspectMethods(unittest.TestCase):
+    def test_get_callable_parameters(self):
+        self.assertIs(
+            inspect._get_callable_parameters(Person.no_arguments),
+            inspect._get_callable_parameters(Person.no_arguments),
+        )
+        self.assertIs(
+            inspect._get_callable_parameters(Person().no_arguments),
+            inspect._get_callable_parameters(Person().no_arguments),
+        )
+
     def test_get_func_full_args_no_arguments(self):
         self.assertEqual(inspect.get_func_full_args(Person.no_arguments), [])
         self.assertEqual(inspect.get_func_full_args(Person().no_arguments), [])