message: test: Add txin.sequence option to MiniWallet
diff: @@ -124,13 +124,13 @@ class MiniWallet:
  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 @@ class MiniWallet:
  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:
  