Fix tests on s390x with hw acceleration

.python3.9.metadata

@@ -0,0 +1,2 @@
+abe4a20dcc11798495b17611ef9f8f33d6975722 Python-3.9.18.tar.xz
+915e5599fb4470e2013a6fe83a7cead27e9e1a7f Python-3.9.18.tar.xz.asc

00414-skip_test_zlib_s390x.patch

@@ -0,0 +1,88 @@
+From e5be32d6eb880c9563fde2f23cc31b7e449719ec Mon Sep 17 00:00:00 2001
+From: Victor Stinner <vstinner@python.org>
+Date: Wed, 24 Jan 2024 18:14:14 +0100
+Subject: [PATCH] bpo-46623: Skip two test_zlib tests on s390x (GH-31096)
+
+Skip test_pair() and test_speech128() of test_zlib on s390x since
+they fail if zlib uses the s390x hardware accelerator.
+---
+ Lib/test/test_zlib.py                         | 32 +++++++++++++++++++
+ .../2022-02-03-09-45-26.bpo-46623.vxzuhV.rst  |  2 ++
+ 2 files changed, 34 insertions(+)
+ create mode 100644 Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
+
+diff --git a/Lib/test/test_zlib.py b/Lib/test/test_zlib.py
+index 02509cd..f3654c9 100644
+--- a/Lib/test/test_zlib.py
++++ b/Lib/test/test_zlib.py
+@@ -2,6 +2,7 @@ import unittest
+ from test import support
+ import binascii
+ import copy
++import os
+ import pickle
+ import random
+ import sys
+@@ -16,6 +17,35 @@ requires_Decompress_copy = unittest.skipUnless(
+         hasattr(zlib.decompressobj(), "copy"),
+         'requires Decompress.copy()')
+ 
++# bpo-46623: On s390x, when a hardware accelerator is used, using different
++# ways to compress data with zlib can produce different compressed data.
++# Simplified test_pair() code:
++#
++#   def func1(data):
++#       return zlib.compress(data)
++#
++#   def func2(data)
++#       co = zlib.compressobj()
++#       x1 = co.compress(data)
++#       x2 = co.flush()
++#       return x1 + x2
++#
++# On s390x if zlib uses a hardware accelerator, func1() creates a single
++# "final" compressed block whereas func2() produces 3 compressed blocks (the
++# last one is a final block). On other platforms with no accelerator, func1()
++# and func2() produce the same compressed data made of a single (final)
++# compressed block.
++#
++# Only the compressed data is different, the decompression returns the original
++# data:
++#
++#   zlib.decompress(func1(data)) == zlib.decompress(func2(data)) == data
++#
++# Make the assumption that s390x always has an accelerator to simplify the skip
++# condition. Windows doesn't have os.uname() but it doesn't support s390x.
++skip_on_s390x = unittest.skipIf(hasattr(os, 'uname') and os.uname().machine == 's390x',
++                                'skipped on s390x')
++
+ 
+ class VersionTestCase(unittest.TestCase):
+ 
+@@ -174,6 +204,7 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
+                                          bufsize=zlib.DEF_BUF_SIZE),
+                          HAMLET_SCENE)
+ 
++    @skip_on_s390x
+     def test_speech128(self):
+         # compress more data
+         data = HAMLET_SCENE * 128
+@@ -225,6 +256,7 @@ class CompressTestCase(BaseCompressTestCase, unittest.TestCase):
+ 
+ class CompressObjectTestCase(BaseCompressTestCase, unittest.TestCase):
+     # Test compression object
++    @skip_on_s390x
+     def test_pair(self):
+         # straightforward compress/decompress objects
+         datasrc = HAMLET_SCENE * 128
+diff --git a/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst b/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
+new file mode 100644
+index 0000000..be085c0
+--- /dev/null
++++ b/Misc/NEWS.d/next/Tests/2022-02-03-09-45-26.bpo-46623.vxzuhV.rst
+@@ -0,0 +1,2 @@
++Skip test_pair() and test_speech128() of test_zlib on s390x since they fail
++if zlib uses the s390x hardware accelerator. Patch by Victor Stinner.
+-- 
+2.43.0
+

python3.9.spec

@@ -17,7 +17,7 @@ URL: https://www.python.org/
 #global prerel ...
 %global upstream_version %{general_version}%{?prerel}
 Version: %{general_version}%{?prerel:~%{prerel}}
-Release: 2%{?dist}
+Release: 3%{?dist}
 License: Python
 
 
@@ -409,6 +409,12 @@ Patch353: 00353-architecture-names-upstream-downstream.patch
 # - https://access.redhat.com/articles/7004769
 Patch397: 00397-tarfile-filter.patch
 
+# 00414 #
+#
+# Skip test_pair() and test_speech128() of test_zlib on s390x since
+# they fail if zlib uses the s390x hardware accelerator.
+Patch414: 00414-skip_test_zlib_s390x.patch
+
 # 00415 #
 # [CVE-2023-27043] gh-102988: Reject malformed addresses in email.parseaddr() (#111116)
 #
@@ -1824,6 +1830,10 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Wed Jan 24 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.18-3
+- Fix tests on s390x with hw acceleration
+Resolves: RHEL-13043
+
 * Thu Jan 04 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.18-2
 - Security fix for CVE-2023-27043
 Resolves: RHEL-20613