elements/test/functional/wallet_send_zero_fee.py
2025-07-24 13:06:43 +01:00

65 lines
2.6 KiB
Python
Executable file

#!/usr/bin/env python3
# Copyright (c) 2017-2020 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from decimal import Decimal
from test_framework.blocktools import COINBASE_MATURITY
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
)
class WalletTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 3
self.extra_args = [[
"-blindedaddresses=1",
"-initialfreecoins=2100000000000000",
"-con_blocksubsidy=0",
"-con_connect_genesis_outputs=1",
"-txindex=1",
"-minrelaytxfee=0",
"-blockmintxfee=0",
"-mintxfee=0",
]] * self.num_nodes
self.extra_args[0].append("-anyonecanspendaremine=1")
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
self.generate(self.nodes[0], COINBASE_MATURITY + 10)
self.sync_all()
balance = self.nodes[0].getbalance()
assert_equal(balance["bitcoin"],21000000)
new_addr = self.nodes[1].getnewaddress()
self.nodes[0].sendtoaddress(new_addr, 10)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 20)
self.generate(self.nodes[0], 1)
assert_equal(self.nodes[0].getblockchaininfo()["blocks"], 111)
assert_equal(self.nodes[0].getbalance(), {'bitcoin': Decimal('20999969.99900900')})
assert_equal(self.nodes[1].getbalance(), {'bitcoin': Decimal('10.00000000')})
assert_equal(self.nodes[2].getbalance(), {'bitcoin': Decimal('20.00000000')})
addr = self.nodes[1].getnewaddress()
txid = self.nodes[0].sendtoaddress(addr, 1, None, None, None, None, None, None, None, None, None, 0, False)
tx = self.nodes[0].gettransaction(txid)
assert_equal(tx["fee"]["bitcoin"], 0)
hex = self.nodes[0].getrawtransaction(txid)
self.generate(self.nodes[0], 1)
assert_equal(self.nodes[0].getblockchaininfo()["blocks"], 112)
decoded = self.nodes[0].decoderawtransaction(hex)
# there should be no fee output
assert_equal(decoded["fee"], {})
assert_equal(len(decoded["vout"]),2)
assert_equal(self.nodes[0].getbalance(), {'bitcoin': Decimal('20999968.99900900')})
assert_equal(self.nodes[1].getbalance(), {'bitcoin': Decimal('11.00000000')})
assert_equal(self.nodes[2].getbalance(), {'bitcoin': Decimal('20.00000000')})
if __name__ == '__main__':
WalletTest().main()