#8516 verifies that tmpdir and tmp_path etc. are owned by the user. This fails on filesystems that do not track ownership.

In my use case, I am using Buildbarn's FUSE storage on Linux where ownership is always reported as 0. This has the benefit that actions reading the ownership, e.g. tar, will be deterministic.

My workaround is to use the following in my test file:

if __name__ == "__main__": sys.exit(pytest.main([ "--basetemp", Path(os.environ["TEST_TMPDIR"]), __file__, ])) 

Would it make sense to allow rootdir_stat.st_uid == 0 in src/_pytest/tmpdir.py? An alternative is to disable the check with an environment variable.

Related issues: #8414 and #10738.