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gh-132710: only use stable _uuid.generate_time_safe() to deduce MAC address (#132901)

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Bénédikt Tran 2025-05-26 10:56:31 +02:00 • committed by GitHub
parent 29e8115964
commit 3bffada467
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6 changed files with 357 additions and 28 deletions
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28
Lib/test/test_uuid.py
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@ -14,6 +14,7 @@ from unittest import mock
from test import support
from test.support import import_helper
from test.support.script_helper import assert_python_ok
py_uuid = import_helper.import_fresh_module('uuid', blocked=['_uuid'])
c_uuid = import_helper.import_fresh_module('uuid', fresh=['_uuid'])
@ -1217,10 +1218,37 @@ class BaseTestUUID:
class TestUUIDWithoutExtModule(BaseTestUUID, unittest.TestCase):
uuid = py_uuid
@unittest.skipUnless(c_uuid, 'requires the C _uuid module')
class TestUUIDWithExtModule(BaseTestUUID, unittest.TestCase):
uuid = c_uuid
def check_has_stable_libuuid_extractable_node(self):
if not self.uuid._has_stable_extractable_node:
self.skipTest("libuuid cannot deduce MAC address")
@unittest.skipUnless(os.name == 'posix', 'POSIX only')
def test_unix_getnode_from_libuuid(self):
self.check_has_stable_libuuid_extractable_node()
script = 'import uuid; print(uuid._unix_getnode())'
_, n_a, _ = assert_python_ok('-c', script)
_, n_b, _ = assert_python_ok('-c', script)
n_a, n_b = n_a.decode().strip(), n_b.decode().strip()
self.assertTrue(n_a.isdigit())
self.assertTrue(n_b.isdigit())
self.assertEqual(n_a, n_b)
@unittest.skipUnless(os.name == 'nt', 'Windows only')
def test_windows_getnode_from_libuuid(self):
self.check_has_stable_libuuid_extractable_node()
script = 'import uuid; print(uuid._windll_getnode())'
_, n_a, _ = assert_python_ok('-c', script)
_, n_b, _ = assert_python_ok('-c', script)
n_a, n_b = n_a.decode().strip(), n_b.decode().strip()
self.assertTrue(n_a.isdigit())
self.assertTrue(n_b.isdigit())
self.assertEqual(n_a, n_b)
class BaseTestInternals:
_uuid = py_uuid