test(wallet): add coin selection tests for TRUC spending rules

Add two tests covering BIP-431 (TRUC) coin selection behavior.

`test_create_tx_non_v3_excludes_unconfirmed_v3_utxos` verifies that a
non-v3 transaction cannot coin-select an unconfirmed v3 parent output,
while a v3 transaction targeting the same output succeeds.

`test_create_tx_non_v3_allows_unconfirmed_non_v3_utxos` verifies that
unconfirmed outputs from non-v3 parents remain eligible for standard
transactions, preserving existing behavior.

Author: EliteCoder18

tests/build_fee_bump.rs

@@ -329,7 +329,7 @@ fn test_bump_fee_drain_wallet() {
     let mut builder = wallet.build_fee_bump(txid).unwrap();
     builder
         .drain_wallet()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(5));
+        .fee_rate(FeeRate::from_sat_per_vb(5).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, _received) =
         wallet.sent_and_received(&psbt.extract_tx().expect("failed to extract tx"));
@@ -391,7 +391,7 @@ fn test_bump_fee_remove_output_manually_selected_only() {
     let mut builder = wallet.build_fee_bump(txid).unwrap();
     builder
         .manually_selected_only()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(255));
+        .fee_rate(FeeRate::from_sat_per_vb(255).unwrap());
     builder.finish().unwrap();
 }
 
@@ -430,7 +430,7 @@ fn test_bump_fee_add_input() {
     insert_tx(&mut wallet, tx);
 
     let mut builder = wallet.build_fee_bump(txid).unwrap();
-    builder.fee_rate(FeeRate::from_sat_per_vb_u32(50));
+    builder.fee_rate(FeeRate::from_sat_per_vb(50).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, received) =
         wallet.sent_and_received(&psbt.clone().extract_tx().expect("failed to extract tx"));
@@ -458,7 +458,7 @@ fn test_bump_fee_add_input() {
         received
     );
 
-    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb_u32(50), @add_signature);
+    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb(50).unwrap(), @add_signature);
 }
 
 #[test]
@@ -536,7 +536,7 @@ fn test_bump_fee_no_change_add_input_and_change() {
     // Now bump the fees, the wallet should add an extra input and a change output, and leave
     // the original output untouched.
     let mut builder = wallet.build_fee_bump(txid).unwrap();
-    builder.fee_rate(FeeRate::from_sat_per_vb_u32(50));
+    builder.fee_rate(FeeRate::from_sat_per_vb(50).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, received) =
         wallet.sent_and_received(&psbt.clone().extract_tx().expect("failed to extract tx"));
@@ -569,7 +569,7 @@ fn test_bump_fee_no_change_add_input_and_change() {
         Amount::from_sat(75_000) - original_send_all_amount - fee
     );
 
-    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb_u32(50), @add_signature);
+    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb(50).unwrap(), @add_signature);
 }
 
 #[test]
@@ -597,7 +597,7 @@ fn test_bump_fee_force_add_input() {
     builder
         .add_utxo(incoming_op)
         .unwrap()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(5));
+        .fee_rate(FeeRate::from_sat_per_vb(5).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, received) =
         wallet.sent_and_received(&psbt.clone().extract_tx().expect("failed to extract tx"));
@@ -626,7 +626,7 @@ fn test_bump_fee_force_add_input() {
         received
     );
 
-    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb_u32(5), @add_signature);
+    assert_fee_rate!(psbt, fee, FeeRate::from_sat_per_vb(5).unwrap(), @add_signature);
 }
 
 #[test]
@@ -715,7 +715,7 @@ fn test_bump_fee_unconfirmed_inputs_only() {
     }
     insert_tx(&mut wallet, tx);
     let mut builder = wallet.build_fee_bump(txid).unwrap();
-    builder.fee_rate(FeeRate::from_sat_per_vb_u32(25));
+    builder.fee_rate(FeeRate::from_sat_per_vb(25).unwrap());
     builder.finish().unwrap();
 }
 
@@ -746,7 +746,7 @@ fn test_bump_fee_unconfirmed_input() {
 
     let mut builder = wallet.build_fee_bump(txid).unwrap();
     builder
-        .fee_rate(FeeRate::from_sat_per_vb_u32(15))
+        .fee_rate(FeeRate::from_sat_per_vb(15).unwrap())
         // remove original tx drain_to address and amount
         .set_recipients(Vec::new())
         // set back original drain_to address
@@ -823,7 +823,7 @@ fn test_legacy_bump_fee_drain_wallet() {
     let mut builder = wallet.build_fee_bump(txid).unwrap();
     builder
         .drain_wallet()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(5));
+        .fee_rate(FeeRate::from_sat_per_vb(5).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, _received) =
         wallet.sent_and_received(&psbt.extract_tx().expect("failed to extract tx"));
@@ -866,7 +866,7 @@ fn test_legacy_bump_fee_add_input() {
     insert_tx(&mut wallet, tx);
 
     let mut builder = wallet.build_fee_bump(txid).unwrap();
-    builder.fee_rate(FeeRate::from_sat_per_vb_u32(50));
+    builder.fee_rate(FeeRate::from_sat_per_vb(50).unwrap());
     let psbt = builder.finish().unwrap();
     let (sent, received) =
         wallet.sent_and_received(&psbt.clone().extract_tx().expect("failed to extract tx"));
@@ -894,7 +894,7 @@ fn test_legacy_bump_fee_add_input() {
         received
     );
 
-    assert_fee_rate_legacy!(psbt, fee, FeeRate::from_sat_per_vb_u32(50), @add_signature);
+    assert_fee_rate_legacy!(psbt, fee, FeeRate::from_sat_per_vb(50).unwrap(), @add_signature);
 }
 
 #[test]
@@ -971,7 +971,7 @@ fn test_bump_fee_pay_to_anchor_foreign_utxo() {
         .add_foreign_utxo(outpoint, psbt_input, satisfaction_weight)
         .unwrap()
         .only_witness_utxo()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(2))
+        .fee_rate(FeeRate::from_sat_per_vb(2).unwrap())
         .drain_to(drain_spk.clone());
     let psbt = tx_builder.finish().unwrap();
     let tx = psbt.unsigned_tx.clone();
@@ -987,7 +987,7 @@ fn test_bump_fee_pay_to_anchor_foreign_utxo() {
         .set_recipients(vec![])
         .drain_to(drain_spk)
         .only_witness_utxo()
-        .fee_rate(FeeRate::from_sat_per_vb_u32(5));
+        .fee_rate(FeeRate::from_sat_per_vb(5).unwrap());
     let psbt = tx_builder.finish().unwrap();
     let tx = &psbt.unsigned_tx;
     assert!(tx.input.iter().any(|txin| txin.previous_output == outpoint));