BTreeMap::new(),
      utxos.into_iter().collect(),
      BTreeSet::new(),
      recipient(),
      [change(0), change(1)],
      FeeRate::try_from(1.0).unwrap(),
      Target::Postage,
    )
    .select_outgoing()
    .unwrap()
    .align_outgoing()
    .strip_value()
    .deduct_fee();
  }

  #[test]
  fn additional_postage_added_when_required() {
    let utxos = vec![
      (outpoint(1), Amount::from_sat(5_000)),
      (outpoint(2), Amount::from_sat(5_000)),
    ];

    pretty_assert_eq!(
      TransactionBuilder::new(
        satpoint(1, 4_950),
        BTreeMap::new(),
        utxos.into_iter().collect(),
        BTreeSet::new(),
        recipient(),
        [change(0), change(1)],
        FeeRate::try_from(1.0).unwrap(),
        Target::Postage,
      )
      .build_transaction(),
      Ok(Transaction {
        version: 1,
        lock_time: LockTime::ZERO,
        input: vec![tx_in(outpoint(1)), tx_in(outpoint(2))],
        output: vec![tx_out(4_950, change(1)), tx_out(4_862, recipient())],
      })