[New-bugs-announce] [issue45052] WithProcessesTestSharedMemory.test_shared_memory_basics fails on Windows

[Nikita Sobolev]

New submission from Nikita Sobolev <mail at sobolevn.me>:

While working on https://github.com/python/cpython/pull/28060 we've noticed that `test.test_multiprocessing_spawn.WithProcessesTestSharedMemory.test_shared_memory_basics` fails on Windows:

```
======================================================================
FAIL: test_shared_memory_basics (test.test_multiprocessing_spawn.WithProcessesTestSharedMemory)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "D:\a\cpython\cpython\lib\test\_test_multiprocessing.py", line 3794, in test_shared_memory_basics
    self.assertEqual(sms.size, sms2.size)
    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 512 != 4096
```

For now it is ignored.

Related issue: https://bugs.python.org/issue45042

----------
components: Tests
messages: 400646
nosy: sobolevn
priority: normal
severity: normal
status: open
title: WithProcessesTestSharedMemory.test_shared_memory_basics fails on Windows
type: behavior
versions: Python 3.10, Python 3.11, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue45052>
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