[issue36234] test_os: add tests for invalid uid type

[STINNER Victor]

New submission from STINNER Victor <vstinner at redhat.com>:

The Fedora package of python contains a downstream patch to add more tests for invalid uid types:
https://src.fedoraproject.org/rpms/python2/blob/master/f/00157-uid-gid-overflows.patch

I propose to make this patch upstream. More tests never hurts :-)

uid/gid overflow has been fixed bpo-4591.

The patch comes from:
https://bugzilla.redhat.com/show_bug.cgi?id=697470

Attached PRs add more tests.

----------
components: Tests
messages: 337464
nosy: vstinner
priority: normal
severity: normal
status: open
title: test_os: add tests for invalid uid type
versions: Python 2.7, Python 3.7, Python 3.8

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue36234>
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