New submission from STINNER Victor <vstin...@redhat.com>:
Extract of the test:
usage = shutil.disk_usage(os.path.dirname(__file__))
self.assertEqual(usage, shutil.disk_usage(__file__))
The test fails if another process creates or removes data on the disk
partition. IMHO "self.assertEqual(usage, shutil.disk_usage(__file__))" must be
removed, it cannot be reliable without mocking os.statvfs() /
nt._getdiskusage().
Even if tests are run sequentially, the test can fail if a program creates a
file between the two lines of code, the test cannot be reliable.
https://buildbot.python.org/all/#/builders/85/builds/1882
FAIL: test_disk_usage (test.test_shutil.TestShutil)
----------------------------------------------------------------------
Traceback (most recent call last):
File
"/home/shager/cpython-buildarea/3.x.edelsohn-fedora-ppc64le/build/Lib/test/test_shutil.py",
line 1366, in test_disk_usage
self.assertEqual(usage, shutil.disk_usage(__file__))
AssertionError: usage(total=1925696024576, used=1793793806336,
free=131902218240) != usage(total=1925696024576, used=1793793818624,
free=131902205952)
----------
components: Tests
messages: 331601
nosy: pablogsal, vstinner
priority: normal
severity: normal
status: open
title: test_shutil.test_disk_usage() randomly fails when tests are run in
parallel
versions: Python 3.8
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue35458>
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