test framework: Add and use option for tx-version in MiniWallet methods

test/functional/test_framework/wallet.py

@@ -286,11 +286,12 @@ class MiniWallet:
         utxos_to_spend: Optional[list[dict]] = None,
         num_outputs=1,
         amount_per_output=0,
+        version=2,
         locktime=0,
         sequence=0,
         fee_per_output=1000,
         target_weight=0,
-        confirmed_only=False
+        confirmed_only=False,
     ):
         """
         Create and return a transaction that spends the given UTXOs and creates a
@@ -313,6 +314,7 @@ class MiniWallet:
         tx = CTransaction()
         tx.vin = [CTxIn(COutPoint(int(utxo_to_spend['txid'], 16), utxo_to_spend['vout']), nSequence=seq) for utxo_to_spend, seq in zip(utxos_to_spend, sequence)]
         tx.vout = [CTxOut(amount_per_output, bytearray(self._scriptPubKey)) for _ in range(num_outputs)]
+        tx.nVersion = version
         tx.nLockTime = locktime
 
         self.sign_tx(tx)
@@ -337,14 +339,15 @@ class MiniWallet:
             "tx": tx,
         }
 
-    def create_self_transfer(self, *,
+    def create_self_transfer(
+            self,
+            *,
             fee_rate=Decimal("0.003"),
             fee=Decimal("0"),
             utxo_to_spend=None,
-            locktime=0,
-            sequence=0,
             target_weight=0,
-            confirmed_only=False
+            confirmed_only=False,
+            **kwargs,
     ):
         """Create and return a tx with the specified fee. If fee is 0, use fee_rate, where the resulting fee may be exact or at most one satoshi higher than needed."""
         utxo_to_spend = utxo_to_spend or self.get_utxo(confirmed_only=confirmed_only)
@@ -360,7 +363,12 @@ class MiniWallet:
         send_value = utxo_to_spend["value"] - (fee or (fee_rate * vsize / 1000))
 
         # create tx
-        tx = self.create_self_transfer_multi(utxos_to_spend=[utxo_to_spend], locktime=locktime, sequence=sequence, amount_per_output=int(COIN * send_value), target_weight=target_weight)
+        tx = self.create_self_transfer_multi(
+            utxos_to_spend=[utxo_to_spend],
+            amount_per_output=int(COIN * send_value),
+            target_weight=target_weight,
+            **kwargs,
+        )
         if not target_weight:
             assert_equal(tx["tx"].get_vsize(), vsize)
         tx["new_utxo"] = tx.pop("new_utxos")[0]