From: Will Childs-Klein <willck93@gmail.com>
Date: Fri, 27 Jun 2025 15:01:16 +0000 (-0400)
Subject: gh-135571: Guard `_hashlib` usage in `test_hashlib.py` (#135572)
X-Git-Tag: v3.15.0a1~1157
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=065194c1a971b59547f1bb2cc64760c4bf0ee674;p=thirdparty%2FPython%2Fcpython.git

gh-135571: Guard `_hashlib` usage in `test_hashlib.py` (#135572)
---

diff --git a/Lib/test/test_hashlib.py b/Lib/test/test_hashlib.py
index 7b378c45e715..5bad483ae9da 100644
--- a/Lib/test/test_hashlib.py
+++ b/Lib/test/test_hashlib.py
@@ -279,7 +279,10 @@ class HashLibTestCase(unittest.TestCase):
                 with self.assertWarnsRegex(DeprecationWarning,
                                            DEPRECATED_STRING_PARAMETER):
                     hashlib.new(digest_name, string=b'')
-                if self._hashlib:
+                # Make sure that _hashlib contains the constructor
+                # to test when using a combination of libcrypto and
+                # interned hash implementations.
+                if self._hashlib and digest_name in self._hashlib._constructors:
                     self._hashlib.new(digest_name, b'')
                     self._hashlib.new(digest_name, data=b'')
                     with self.assertWarnsRegex(DeprecationWarning,
@@ -333,7 +336,8 @@ class HashLibTestCase(unittest.TestCase):
                 with self.subTest(digest_name, args=args, kwds=kwds):
                     with self.assertRaisesRegex(TypeError, errmsg):
                         hashlib.new(digest_name, *args, **kwds)
-                    if self._hashlib:
+                    if (self._hashlib and
+                            digest_name in self._hashlib._constructors):
                         with self.assertRaisesRegex(TypeError, errmsg):
                             self._hashlib.new(digest_name, *args, **kwds)