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#!/usr/bin/env python3
# Copyright (c) 2020-2021 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 transaction relay behavior during IBD:
- Set fee filters to MAX_MONEY
- Don't request transactions
- Ignore all transaction messages
"""
from decimal import Decimal
import time
from test_framework.messages import (
CInv,
COIN,
CTransaction,
from_hex,
msg_inv,
msg_tx,
MSG_WTX,
)
from test_framework.p2p import (
NONPREF_PEER_TX_DELAY,
P2PDataStore,
P2PInterface,
p2p_lock
)
from test_framework.test_framework import BitcoinTestFramework
MAX_FEE_FILTER = Decimal(9170997) / COIN
NORMAL_FEE_FILTER = Decimal(100) / COIN
class P2PIBDTxRelayTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 2
self.extra_args = [
["-minrelaytxfee={}".format(NORMAL_FEE_FILTER)],
["-minrelaytxfee={}".format(NORMAL_FEE_FILTER)],
]
def run_test(self):
self.log.info("Check that nodes set minfilter to MAX_MONEY while still in IBD")
for node in self.nodes:
assert node.getblockchaininfo()['initialblockdownload']
self.wait_until(lambda: all(peer['minfeefilter'] == MAX_FEE_FILTER for peer in node.getpeerinfo()))
self.log.info("Check that nodes don't send getdatas for transactions while still in IBD")
peer_inver = self.nodes[0].add_p2p_connection(P2PDataStore())
txid = 0xdeadbeef
peer_inver.send_and_ping(msg_inv([CInv(t=MSG_WTX, h=txid)]))
# The node should not send a getdata, but if it did, it would first delay 2 seconds
self.nodes[0].setmocktime(int(time.time() + NONPREF_PEER_TX_DELAY))
peer_inver.sync_with_ping()
with p2p_lock:
assert txid not in peer_inver.getdata_requests
self.nodes[0].disconnect_p2ps()
self.log.info("Check that nodes don't process unsolicited transactions while still in IBD")
# A transaction hex pulled from tx_valid.json. There are no valid transactions since no UTXOs
# exist yet, but it should be a well-formed transaction.
rawhex = "0100000001b14bdcbc3e01bdaad36cc08e81e69c82e1060bc14e518db2b49aa43ad90ba260000000004a01ff473" + \
"04402203f16c6f40162ab686621ef3000b04e75418a0c0cb2d8aebeac894ae360ac1e780220ddc15ecdfc3507ac48e168" + \
"1a33eb60996631bf6bf5bc0a0682c4db743ce7ca2b01ffffffff0140420f00000000001976a914660d4ef3a743e3e696a" + \
"d990364e555c271ad504b88ac00000000"
assert self.nodes[1].decoderawtransaction(rawhex) # returns a dict, should not throw
tx = from_hex(CTransaction(), rawhex)
peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
with self.nodes[0].assert_debug_log(expected_msgs=["received: tx"], unexpected_msgs=["was not accepted"]):
peer_txer.send_and_ping(msg_tx(tx))
self.nodes[0].disconnect_p2ps()
# Come out of IBD by generating a block
self.generate(self.nodes[0], 1)
self.log.info("Check that nodes reset minfilter after coming out of IBD")
for node in self.nodes:
assert not node.getblockchaininfo()['initialblockdownload']
self.wait_until(lambda: all(peer['minfeefilter'] == NORMAL_FEE_FILTER for peer in node.getpeerinfo()))
self.log.info("Check that nodes process the same transaction, even when unsolicited, when no longer in IBD")
peer_txer = self.nodes[0].add_p2p_connection(P2PInterface())
with self.nodes[0].assert_debug_log(expected_msgs=["was not accepted"]):
peer_txer.send_and_ping(msg_tx(tx))
if __name__ == '__main__':
P2PIBDTxRelayTest().main()
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