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-rw-r--r--Lib/test/test_inspect.py5
1 files changed, 5 insertions, 0 deletions
diff --git a/Lib/test/test_inspect.py b/Lib/test/test_inspect.py
index 0590e49..ade3215 100644
--- a/Lib/test/test_inspect.py
+++ b/Lib/test/test_inspect.py
@@ -2766,6 +2766,11 @@ class TestSignatureObject(unittest.TestCase):
# Regression test for issue #20586
test_callable(_testcapi.docstring_with_signature_but_no_doc)
+ # Regression test for gh-104955
+ method = bytearray.__release_buffer__
+ sig = test_unbound_method(method)
+ self.assertEqual(list(sig.parameters), ['self', 'buffer'])
+
@cpython_only
@unittest.skipIf(MISSING_C_DOCSTRINGS,
"Signature information for builtins requires docstrings")