TestTemporaryDirectory.test_flags fails on FreeBSD/ZFS

[attilajeges]

BPO	39047
Nosy	@attilajeges
PRs	bpo-39047: Skip chflags UF_IMMUTABLE tests if EOPNOTSUPP is raised. (GH-17607) #17607

^{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 2019-12-14.17:10:08.242>
labels = ['type-bug', 'tests', '3.9']
title = 'TestTemporaryDirectory.test_flags fails on FreeBSD/ZFS'
updated_at = <Date 2019-12-14.17:14:29.161>
user = 'https://github.com/attilajeges'

bugs.python.org fields:

activity = <Date 2019-12-14.17:14:29.161>
actor = 'attilajeges'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Tests']
creation = <Date 2019-12-14.17:10:08.242>
creator = 'attilajeges'
dependencies = []
files = []
hgrepos = []
issue_num = 39047
keywords = ['patch']
message_count = 1.0
messages = ['358398']
nosy_count = 1.0
nosy_names = ['attilajeges']
pr_nums = ['17607']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue39047'
versions = ['Python 3.9']

[attilajeges]

When I run test_tempfle.py on FreeBSD/ZFS I get the following error:

======================================================================
ERROR: test_flags (main.TestTemporaryDirectory)
----------------------------------------------------------------------

Traceback (most recent call last):
  File "/usr/home/attilaj/cpython/Lib/test/test_tempfile.py", line 1498, in test_flags
    os.chflags(os.path.join(root, name), flags)
OSError: [Errno 45] Operation not supported: '/tmp/awxj9cgb/dir0/dir0/dir0/test1.txt'

---

Ran 90 tests in 1.133s

FAILED (errors=1, skipped=1)

I think this is similar to Issue bpo-15747.

[emaste]

I presume we would see the same behaviour on Linux with /tmp on ZFS.

[serhiy-storchaka]

It was fixed in a duplicate issue #108962.