assert_eq!(
      server
        .index
        .statistic(crate::index::Statistic::OutputsTraversed),
      1
    );

    server.index.update().unwrap();

    assert_eq!(
      server
        .index
        .statistic(crate::index::Statistic::OutputsTraversed),
      1
    );

    server.mine_blocks(2);

    server.index.update().unwrap();

    assert_eq!(
      server
        .index
        .statistic(crate::index::Statistic::OutputsTraversed),
      3
    );
  }

  #[test]
  fn coinbase_sat_ranges_are_tracked() {
    let server = TestServer::new_with_sat_index();

    assert_eq!(
      server.index.statistic(crate::index::Statistic::SatRanges),
      1
    );

    server.mine_blocks(1);

    assert_eq!(
      server.index.statistic(crate::index::Statistic::SatRanges),
      2
    );

    server.mine_blocks(1);

    assert_eq!(
      server.index.statistic(crate::index::Statistic::SatRanges),
      3
    );
  }

  #[test]
  fn split_sat_ranges_are_tracked() {
    let server = TestServer::new_with_sat_index();