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#!/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.
"""Test that the wallet resends transactions periodically."""
from collections import defaultdict
import time
from test_framework.blocktools import create_block, create_coinbase
from test_framework.messages import ToHex
from test_framework.mininode import P2PInterface, mininode_lock
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal, wait_until
class P2PStoreTxInvs(P2PInterface):
def __init__(self):
super().__init__()
self.tx_invs_received = defaultdict(int)
def on_inv(self, message):
# Store how many times invs have been received for each tx.
for i in message.inv:
if i.type == 1:
# save txid
self.tx_invs_received[i.hash] += 1
class ResendWalletTransactionsTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
node = self.nodes[0] # alias
node.add_p2p_connection(P2PStoreTxInvs())
self.log.info("Create a new transaction and wait until it's broadcast")
txid = int(node.sendtoaddress(node.getnewaddress(), 1), 16)
# Wallet rebroadcast is first scheduled 1 sec after startup (see
# nNextResend in ResendWalletTransactions()). Sleep for just over a
# second to be certain that it has been called before the first
# setmocktime call below.
time.sleep(1.1)
# Can take a few seconds due to transaction trickling
wait_until(lambda: node.p2p.tx_invs_received[txid] >= 1, lock=mininode_lock)
# Add a second peer since txs aren't rebroadcast to the same peer (see filterInventoryKnown)
node.add_p2p_connection(P2PStoreTxInvs())
self.log.info("Create a block")
# Create and submit a block without the transaction.
# Transactions are only rebroadcast if there has been a block at least five minutes
# after the last time we tried to broadcast. Use mocktime and give an extra minute to be sure.
block_time = int(time.time()) + 6 * 60
node.setmocktime(block_time)
block = create_block(int(node.getbestblockhash(), 16), create_coinbase(node.getblockcount() + 1), block_time)
block.rehash()
block.solve()
node.submitblock(ToHex(block))
# Transaction should not be rebroadcast
node.syncwithvalidationinterfacequeue()
node.p2ps[1].sync_with_ping()
assert_equal(node.p2ps[1].tx_invs_received[txid], 0)
self.log.info("Transaction should be rebroadcast after 30 minutes")
# Use mocktime and give an extra 5 minutes to be sure.
rebroadcast_time = int(time.time()) + 41 * 60
node.setmocktime(rebroadcast_time)
wait_until(lambda: node.p2ps[1].tx_invs_received[txid] >= 1, lock=mininode_lock)
if __name__ == '__main__':
ResendWalletTransactionsTest().main()
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