def test_make_numbered_dir_case(self, tmpdir):
        """make_numbered_dir does not make assumptions on the underlying
        filesystem based on the platform and will assume it _could_ be case
        insensitive.

        See issues:
        - https://github.com/pytest-dev/pytest/issues/708
        - https://github.com/pytest-dev/pytest/issues/3451
        """
        d1 = local.make_numbered_dir(
            prefix="CAse.",
            rootdir=tmpdir,
            keep=2,
            lock_timeout=0,
        )
        d2 = local.make_numbered_dir(
            prefix="caSE.",
            rootdir=tmpdir,
            keep=2,
            lock_timeout=0,
        )
        assert str(d1).lower() != str(d2).lower()
        assert str(d2).endswith(".1")
make_numbered_dir does not make assumptions on the underlying
        filesystem based on the platform and will assume it _could_ be case
        insensitive.

        See issues:
        - https://github.com/pytest-dev/pytest/issues/708
        - https://github.com/pytest-dev/pytest/issues/3451
        
testing/_py/test_local.py