mirror of
https://github.com/dashpay/dash.git
synced 2024-12-27 04:52:59 +01:00
126 lines
5.1 KiB
Python
Executable File
126 lines
5.1 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2016 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 version bits warning system.
|
|
|
|
Generate chains with block versions that appear to be signalling unknown
|
|
soft-forks, and test that warning alerts are generated.
|
|
"""
|
|
|
|
from test_framework.mininode import *
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import *
|
|
import re
|
|
from test_framework.blocktools import create_block, create_coinbase
|
|
|
|
VB_PERIOD = 144 # versionbits period length for regtest
|
|
VB_THRESHOLD = 108 # versionbits activation threshold for regtest
|
|
VB_TOP_BITS = 0x20000000
|
|
VB_UNKNOWN_BIT = 27 # Choose a bit unassigned to any deployment
|
|
|
|
WARN_UNKNOWN_RULES_MINED = "Unknown block versions being mined! It's possible unknown rules are in effect"
|
|
WARN_UNKNOWN_RULES_ACTIVE = "unknown new rules activated (versionbit {})".format(VB_UNKNOWN_BIT)
|
|
VB_PATTERN = re.compile("^Warning.*versionbit")
|
|
|
|
class TestNode(NodeConnCB):
|
|
def on_inv(self, conn, message):
|
|
pass
|
|
|
|
class VersionBitsWarningTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.setup_clean_chain = True
|
|
self.num_nodes = 1
|
|
|
|
def setup_network(self):
|
|
self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
|
|
# Open and close to create zero-length file
|
|
with open(self.alert_filename, 'w', encoding='utf8') as _:
|
|
pass
|
|
self.extra_args = [["-alertnotify=echo %s >> \"" + self.alert_filename + "\""]]
|
|
self.setup_nodes()
|
|
|
|
# Send numblocks blocks via peer with nVersionToUse set.
|
|
def send_blocks_with_version(self, peer, numblocks, nVersionToUse):
|
|
tip = self.nodes[0].getbestblockhash()
|
|
height = self.nodes[0].getblockcount()
|
|
block_time = self.nodes[0].getblockheader(tip)["time"]+1
|
|
tip = int(tip, 16)
|
|
|
|
for _ in range(numblocks):
|
|
block = create_block(tip, create_coinbase(height+1), block_time)
|
|
block.nVersion = nVersionToUse
|
|
block.solve()
|
|
peer.send_message(msg_block(block))
|
|
block_time += 1
|
|
height += 1
|
|
tip = block.sha256
|
|
peer.sync_with_ping()
|
|
|
|
def test_versionbits_in_alert_file(self):
|
|
with open(self.alert_filename, 'r', encoding='utf8') as f:
|
|
alert_text = f.read()
|
|
assert(VB_PATTERN.match(alert_text))
|
|
|
|
def run_test(self):
|
|
# Setup the p2p connection and start up the network thread.
|
|
test_node = TestNode()
|
|
|
|
connections = []
|
|
connections.append(NodeConn('127.0.0.1', p2p_port(0), self.nodes[0], test_node))
|
|
test_node.add_connection(connections[0])
|
|
|
|
NetworkThread().start() # Start up network handling in another thread
|
|
|
|
# Test logic begins here
|
|
test_node.wait_for_verack()
|
|
|
|
# 1. Have the node mine one period worth of blocks
|
|
self.nodes[0].generate(VB_PERIOD)
|
|
|
|
# 2. Now build one period of blocks on the tip, with < VB_THRESHOLD
|
|
# blocks signaling some unknown bit.
|
|
nVersion = VB_TOP_BITS | (1<<VB_UNKNOWN_BIT)
|
|
self.send_blocks_with_version(test_node, VB_THRESHOLD-1, nVersion)
|
|
|
|
# Fill rest of period with regular version blocks
|
|
self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD + 1)
|
|
# Check that we're not getting any versionbit-related errors in
|
|
# get*info()
|
|
assert(not VB_PATTERN.match(self.nodes[0].getmininginfo()["errors"]))
|
|
assert(not VB_PATTERN.match(self.nodes[0].getnetworkinfo()["warnings"]))
|
|
|
|
# 3. Now build one period of blocks with >= VB_THRESHOLD blocks signaling
|
|
# some unknown bit
|
|
self.send_blocks_with_version(test_node, VB_THRESHOLD, nVersion)
|
|
self.nodes[0].generate(VB_PERIOD - VB_THRESHOLD)
|
|
# Might not get a versionbits-related alert yet, as we should
|
|
# have gotten a different alert due to more than 51/100 blocks
|
|
# being of unexpected version.
|
|
# Check that get*info() shows some kind of error.
|
|
assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getmininginfo()["errors"])
|
|
assert(WARN_UNKNOWN_RULES_MINED in self.nodes[0].getnetworkinfo()["warnings"])
|
|
|
|
# Mine a period worth of expected blocks so the generic block-version warning
|
|
# is cleared, and restart the node. This should move the versionbit state
|
|
# to ACTIVE.
|
|
self.nodes[0].generate(VB_PERIOD)
|
|
self.stop_nodes()
|
|
# Empty out the alert file
|
|
with open(self.alert_filename, 'w', encoding='utf8') as _:
|
|
pass
|
|
self.start_nodes()
|
|
|
|
# Connecting one block should be enough to generate an error.
|
|
self.nodes[0].generate(1)
|
|
assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getmininginfo()["errors"])
|
|
assert(WARN_UNKNOWN_RULES_ACTIVE in self.nodes[0].getnetworkinfo()["warnings"])
|
|
self.stop_nodes()
|
|
self.test_versionbits_in_alert_file()
|
|
|
|
# Test framework expects the node to still be running...
|
|
self.start_nodes()
|
|
|
|
if __name__ == '__main__':
|
|
VersionBitsWarningTest().main()
|