#[test]
fn test_partial_mmr_untrack() {
    // build the MMR
    let mmr: Mmr = LEAVES.into();

    // get path and node for position 1
    let node1 = mmr.get(1).unwrap();
    let proof1 = mmr.open(1).unwrap();

    // create partial MMR and add authentication path to node at position 1
    let mut partial_mmr: PartialMmr = mmr.peaks().into();
    partial_mmr.track(1, node1, &proof1.merkle_path).unwrap();

    partial_mmr.untrack(1);
}