test_pidfd_send_signal can fail on some systems with PermissionError: [Errno 1] Operation not permitted

[pablogsal]

BPO	39157
Nosy	@pablogsal
PRs	bpo-39157: Skip test_pidfd_send_signal if the system does not have enough privileges to use pidfd #17740

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2019-12-29.20:51:55.546>
labels = []
title = 'test_pidfd_send_signal can fail on some systems with PermissionError: [Errno 1] Operation not permitted'
updated_at = <Date 2019-12-29.21:36:03.103>
user = 'https://github.com/pablogsal'

bugs.python.org fields:

activity = <Date 2019-12-29.21:36:03.103>
actor = 'pablogsal'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = []
creation = <Date 2019-12-29.20:51:55.546>
creator = 'pablogsal'
dependencies = []
files = []
hgrepos = []
issue_num = 39157
keywords = ['patch']
message_count = 2.0
messages = ['359004', '359006']
nosy_count = 1.0
nosy_names = ['pablogsal']
pr_nums = ['17740']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = None
url = 'https://bugs.python.org/issue39157'
versions = []

[pablogsal]

======================================================================
FAIL: test_pidfd_send_signal (test.test_signal.PidfdSignalTest)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/buildbot/buildarea/3.x.pablogsal-arch-x86_64/build/Lib/test/test_signal.py", line 1287, in test_pidfd_send_signal
    self.assertEqual(cm.exception.errno, errno.EBADF)
AssertionError: 1 != 9

---

Example failure:

https://buildbot.python.org/all/#/builders/231/builds/1/steps/5/logs/stdio

We should skip the test if the syscall is not permitted

[pablogsal]

New changeset 8f0703f by Pablo Galindo in branch 'master':
bpo-39157: Skip test_pidfd_send_signal if the system does not have enough privileges to use pidfd (GH-17740)
8f0703f

[furkanonder]

The issue seems to be solved. I am closing the issue.