From 27ddcd2a516deec143be1895c1bbb27aea149619 Mon Sep 17 00:00:00 2001
From: yancy <yancy@yancy.lol>
Date: Sat, 14 Dec 2024 17:02:07 -0600
Subject: [PATCH] wip

---
 benches/coin_selection.rs | 1 +
 src/coin_grinder.rs       | 8 +++-----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/benches/coin_selection.rs b/benches/coin_selection.rs
index c9f2d9dc..914fc95e 100644
--- a/benches/coin_selection.rs
+++ b/benches/coin_selection.rs
@@ -11,6 +11,7 @@ pub struct Utxo {
 impl WeightedUtxo for Utxo {
     fn satisfaction_weight(&self) -> Weight { self.satisfaction_weight }
 
+    fn weight(&self) -> Weight { Weight::ZERO }
     fn value(&self) -> Amount { self.output.value }
 }
 
diff --git a/src/coin_grinder.rs b/src/coin_grinder.rs
index 19a5f0ba..f68b636a 100644
--- a/src/coin_grinder.rs
+++ b/src/coin_grinder.rs
@@ -9,8 +9,7 @@
 /// # Parameters
 ///
 /// * target: Target spend `Amount`
-/// * change_target: A bound on the `Amount` to increase target by with which to create a change
-/// output.
+/// * change_target: A bound on the `Amount` to increase target by with which to create a change output.
 /// * max_selection_weight: Maximum allowable selection weight. 
 /// * fee_rate: Needed to calculate the effective_value.
 /// * weighted_utxos: The candidate Weighted UTXOs from which to choose a selection from
@@ -53,7 +52,6 @@ use bitcoin::amount::CheckedSum;
 ///     - Not enough potential amount to meet the target, etc
 ///     - Target Amount is zero (no match possible)
 ///     - UTXO space was searched succefully however no match was found
-
 // The sum of UTXO amounts after this UTXO index, e.g. lookahead[5] = Σ(UTXO[6+].amount)
 fn build_lookahead<Utxo: WeightedUtxo>(lookahead: Vec<(Amount, &Utxo)>, available_value: Amount) -> Vec<Amount>{
     lookahead.iter().map(|(e, _w)| e).scan(available_value, |state, &u| {
@@ -318,7 +316,7 @@ mod tests {
         let eff_values: Vec<(Amount, &Utxo)> = calc_effective_values(&utxos, FeeRate::ZERO);
         let min_group_weight = build_min_group_weight(eff_values.clone());
 
-        let expect: Vec<Weight> = vec![
+        let expect: Vec<Weight> = [
             4u64,
             4u64,
             8u64,
@@ -341,7 +339,7 @@ mod tests {
         let available_value = Amount::from_str("26 sats").unwrap();
         let lookahead = build_lookahead(eff_values, available_value);  
 
-        let expect: Vec<Amount> = vec![
+        let expect: Vec<Amount> = [
             "16 sats",
             "9 sats",
             "4 sats",