def METHOD_NAME(self):
    item = FilesystemRootItem(from_target="t")
    self.assertEqual(PhaseOrder.MAKE_SUBVOL, item.phase_order())
    with TempSubvolumes(Path(sys.argv[0])) as temp_subvolumes:
        subvol = temp_subvolumes.caller_will_create("fs-root")
        item.get_phase_builder([item], DUMMY_LAYER_OPTS_BA)(subvol)
        self.assertEqual(
            [
                "(Dir)",
                {".meta": get_meta_dir_contents(subvol)},
            ],
            render_subvol(subvol),
        )