test: Add txin.sequence option to MiniWallet

Author: MarcoFalke

test/functional/test_framework/wallet.py

@@ -124,13 +124,13 @@ def get_utxo(self, *, txid: Optional[str]='', mark_as_spent=True):
         else:
             return self._utxos[index]
 
-    def send_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_spend=None, locktime=0):
+    def send_self_transfer(self, **kwargs):
         """Create and send a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""
-        tx = self.create_self_transfer(fee_rate=fee_rate, from_node=from_node, utxo_to_spend=utxo_to_spend)
-        self.sendrawtransaction(from_node=from_node, tx_hex=tx['hex'])
+        tx = self.create_self_transfer(**kwargs)
+        self.sendrawtransaction(from_node=kwargs['from_node'], tx_hex=tx['hex'])
         return tx
 
-    def create_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_spend=None, mempool_valid=True, locktime=0):
+    def create_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_spend=None, mempool_valid=True, locktime=0, sequence=0):
         """Create and return a tx with the specified fee_rate. Fee may be exact or at most one satoshi higher than needed."""
         self._utxos = sorted(self._utxos, key=lambda k: k['value'])
         utxo_to_spend = utxo_to_spend or self._utxos.pop()  # Pick the largest utxo (if none provided) and hope it covers the fee
@@ -140,7 +140,7 @@ def create_self_transfer(self, *, fee_rate=Decimal("0.003"), from_node, utxo_to_
         assert send_value > 0
 
         tx = CTransaction()
-        tx.vin = [CTxIn(COutPoint(int(utxo_to_spend['txid'], 16), utxo_to_spend['vout']))]
+        tx.vin = [CTxIn(COutPoint(int(utxo_to_spend['txid'], 16), utxo_to_spend['vout']), nSequence=sequence)]
         tx.vout = [CTxOut(int(send_value * COIN), self._scriptPubKey)]
         tx.nLockTime = locktime
         if not self._address: