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#!/usr/bin/env python3
# Copyright (c) 2017-2021 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."""
import time
from test_framework.blocktools import (
create_block,
create_coinbase,
)
from test_framework.p2p import P2PTxInvStore
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
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
peer_first = node.add_p2p_connection(P2PTxInvStore())
self.log.info("Create a new transaction and wait until it's broadcast")
txid = node.sendtoaddress(node.getnewaddress(), 1)
# Wallet rebroadcast is first scheduled 1 sec after startup (see
# nNextResend in ResendWalletTransactions()). Tell scheduler to call
# MaybeResendWalletTxn now to initialize nNextResend before the first
# setmocktime call below.
node.mockscheduler(1)
# Can take a few seconds due to transaction trickling
peer_first.wait_for_broadcast([txid])
# Add a second peer since txs aren't rebroadcast to the same peer (see filterInventoryKnown)
peer_second = node.add_p2p_connection(P2PTxInvStore())
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(block.serialize().hex())
# Set correct m_best_block_time, which is used in ResendWalletTransactions
node.syncwithvalidationinterfacequeue()
now = int(time.time())
# Transaction should not be rebroadcast within first 12 hours
# Leave 2 mins for buffer
twelve_hrs = 12 * 60 * 60
two_min = 2 * 60
node.setmocktime(now + twelve_hrs - two_min)
node.mockscheduler(1) # Tell scheduler to call MaybeResendWalletTxn now
assert_equal(int(txid, 16) in peer_second.get_invs(), False)
self.log.info("Bump time & check that transaction is rebroadcast")
# Transaction should be rebroadcast approximately 24 hours in the future,
# but can range from 12-36. So bump 36 hours to be sure.
with node.assert_debug_log(['ResendWalletTransactions: resubmit 1 unconfirmed transactions']):
node.setmocktime(now + 36 * 60 * 60)
# Tell scheduler to call MaybeResendWalletTxn now.
node.mockscheduler(1)
# Give some time for trickle to occur
node.setmocktime(now + 36 * 60 * 60 + 600)
peer_second.wait_for_broadcast([txid])
if __name__ == '__main__':
ResendWalletTransactionsTest().main()
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