testutil: fix lint errors

testutil/wallet.go

@@ -29,9 +29,9 @@ type (
 	}
 )
 
-func (et *ephemeralWalletUpdateTxn) WalletStateElements() (eles []types.StateElement, _ error) {
+func (et *ephemeralWalletUpdateTxn) WalletStateElements() (elements []types.StateElement, _ error) {
 	for _, se := range et.store.utxos {
-		eles = append(eles, se.StateElement)
+		elements = append(elements, se.StateElement)
 	}
 	return
 }
@@ -133,6 +133,7 @@ func (es *EphemeralWalletStore) Tip() (types.ChainIndex, error) {
 	return es.tip, nil
 }
 
+// ProcessChainApplyUpdate implements chain.Subscriber.
 func (es *EphemeralWalletStore) ProcessChainApplyUpdate(cau *chain.ApplyUpdate, mayCommit bool) error {
 	es.mu.Lock()
 	defer es.mu.Unlock()
@@ -153,6 +154,7 @@ func (es *EphemeralWalletStore) ProcessChainApplyUpdate(cau *chain.ApplyUpdate,
 	return nil
 }
 
+// ProcessChainRevertUpdate implements chain.Subscriber.
 func (es *EphemeralWalletStore) ProcessChainRevertUpdate(cru *chain.RevertUpdate) error {
 	es.mu.Lock()
 	defer es.mu.Unlock()

wallet/wallet.go

@@ -213,7 +213,7 @@ func (sw *SingleAddressWallet) FundTransaction(txn *types.Transaction, amount ty
 	sw.mu.Lock()
 	defer sw.mu.Unlock()
 
-	utxos, err := sw.store.UnspentSiacoinElements()
+	elements, err := sw.store.UnspentSiacoinElements()
 	if err != nil {
 		return nil, nil, err
 	}
@@ -236,14 +236,13 @@ func (sw *SingleAddressWallet) FundTransaction(txn *types.Transaction, amount ty
 	}
 
 	// remove locked and spent outputs
-	filtered := utxos[:0]
-	for _, sce := range utxos {
+	utxos := make([]types.SiacoinElement, 0, len(elements))
+	for _, sce := range elements {
 		if time.Now().Before(sw.locked[sce.ID]) || tpoolSpent[sce.ID] {
 			continue
 		}
-		filtered = append(filtered, sce)
+		utxos = append(utxos, sce.SiacoinElement)
 	}
-	utxos = filtered
 
 	// sort by value, descending
 	sort.Slice(utxos, func(i, j int) bool {
@@ -273,7 +272,7 @@ func (sw *SingleAddressWallet) FundTransaction(txn *types.Transaction, amount ty
 			utxos = utxos[i:]
 			break
 		}
-		selected = append(selected, sce.SiacoinElement)
+		selected = append(selected, sce)
 		inputSum = inputSum.Add(sce.SiacoinOutput.Value)
 	}
 
@@ -309,7 +308,7 @@ func (sw *SingleAddressWallet) FundTransaction(txn *types.Transaction, amount ty
 			}
 
 			sce := defraggable[i]
-			selected = append(selected, sce.SiacoinElement)
+			selected = append(selected, sce)
 			inputSum = inputSum.Add(sce.SiacoinOutput.Value)
 			txnInputs++
 		}