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gh-126483: disable warnings filters mutation in concurrent test_check… #132694

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gh-126483: disable warnings filters mutation in concurrent test_check… #132694

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6a0d82f
gh-126483: disable warnings filters mutation in concurrent test_check…
graingert Apr 18, 2025
5b109a6
Update Lib/test/test_ssl.py
graingert Apr 18, 2025
535baad
Update Lib/test/test_ssl.py
graingert Apr 18, 2025
0a09052
Merge branch 'main' into disable-warnings-filters-in-concurrent-test-…
graingert Apr 18, 2025
148e41d
Update Lib/test/test_ssl.py
graingert Apr 19, 2025
43e73cf
Merge branch 'main' into disable-warnings-filters-in-concurrent-test-…
graingert Apr 30, 2025
aa8c74a
use parenthesis to highlight ternary
graingert Apr 30, 2025
2b69467
Merge branch 'main' into disable-warnings-filters-in-concurrent-test-…
graingert May 1, 2025
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41 changes: 28 additions & 13 deletions 41 Lib/test/test_ssl.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
# Test the support for SSL and sockets

o
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import sys
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import unittest
import unittest.mock
Expand Down Expand Up @@ -31,6 +31,7 @@
import platform
import sysconfig
import functools
from contextlib import nullcontext
try:
import ctypes
except ImportError:
Expand Down Expand Up @@ -2843,6 +2844,7 @@ def test_ssl_in_multiple_threads(self):
# See GH-124984: OpenSSL is not thread safe.
threads = []

warnings_filters = sys.flags.context_aware_warnings
global USE_SAME_TEST_CONTEXT
USE_SAME_TEST_CONTEXT = True
try:
Expand All @@ -2851,7 +2853,10 @@ def test_ssl_in_multiple_threads(self):
self.test_alpn_protocols,
self.test_getpeercert,
self.test_crl_check,
self.test_check_hostname_idn,
partial(
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self.test_check_hostname_idn,
warnings_filters=warnings_filters,
),
self.test_wrong_cert_tls12,
self.test_wrong_cert_tls13,
):
Expand Down Expand Up @@ -3097,7 +3102,7 @@ def test_dual_rsa_ecc(self):
cipher = s.cipher()[0].split('-')
self.assertTrue(cipher[:2], ('ECDHE', 'ECDSA'))

def test_check_hostname_idn(self):
def test_check_hostname_idn(self, warnings_filters=True):
if support.verbose:
sys.stdout.write("\n")

Expand Down Expand Up @@ -3152,16 +3157,26 @@ def test_check_hostname_idn(self):
server_hostname="python.example.org") as s:
with self.assertRaises(ssl.CertificateError):
s.connect((HOST, server.port))
with ThreadedEchoServer(context=server_context, chatty=True) as server:
with warnings_helper.check_no_resource_warning(self):
with self.assertRaises(UnicodeError):
context.wrap_socket(socket.socket(),
server_hostname='.pythontest.net')
with ThreadedEchoServer(context=server_context, chatty=True) as server:
with warnings_helper.check_no_resource_warning(self):
with self.assertRaises(UnicodeDecodeError):
context.wrap_socket(socket.socket(),
server_hostname=b'k\xf6nig.idn.pythontest.net')
with (
ThreadedEchoServer(context=server_context, chatty=True) as server,
warnings_helper.check_no_resource_warning(self)
if warnings_filters
else nullcontext(),
self.assertRaises(UnicodeError),
):
context.wrap_socket(socket.socket(), server_hostname='.pythontest.net')

with (
ThreadedEchoServer(context=server_context, chatty=True) as server,
warnings_helper.check_no_resource_warning(self)
if warnings_filters
else nullcontext(),
self.assertRaises(UnicodeDecodeError),
):
context.wrap_socket(
socket.socket(),
server_hostname=b'k\xf6nig.idn.pythontest.net',
)
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I suggest the following:

def get_warnings_filter_context(self, warnings_filter):
    if warnings_filters:
        return warnings_helper.check_no_resource_warning(self)
    return nullcontext()

so that it can be used as follows:

        with (
            ThreadedEchoServer(context=server_context, chatty=True) as server,
            self.get_warnings_filter_context(warnings_filters),
            self.assertRaises(UnicodeError),
        ):
            context.wrap_socket(socket.socket(), server_hostname='.pythontest.net')

        with (
            ThreadedEchoServer(context=server_context, chatty=True) as server,
            self.get_warnings_filter_context(warnings_filters),
            self.assertRaises(UnicodeDecodeError),
        ):
            context.wrap_socket(
                socket.socket(),
                server_hostname=b'k\xf6nig.idn.pythontest.net',
            )

It took me a while to see the ternary if-else

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I'll add some extra parenthesis, like ruff would


def test_wrong_cert_tls12(self):
"""Connecting when the server rejects the client's certificate
Expand Down
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