def METHOD_NAME(tmp_path):
    """Test FIL reader in cases where a position file is missing."""
    test_path = tmp_path / "FIL"
    shutil.copytree(fil_path, test_path)
    posname = test_path / "sub-noise_ses-001_task-noise220622_run-001_positions.tsv"
    binname = test_path / "sub-noise_ses-001_task-noise220622_run-001_meg.bin"
    remove(posname)
    with pytest.warns(RuntimeWarning, match="No sensor position.*"):
        raw = read_raw_fil(binname)
    chs = raw.info["chs"]
    locs = array([ch["loc"][:] for ch in chs])
    assert isnan(locs).all()