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Diffstat (limited to 'test/functional/p2p-versionbits-warning.py')
-rwxr-xr-x | test/functional/p2p-versionbits-warning.py | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/test/functional/p2p-versionbits-warning.py b/test/functional/p2p-versionbits-warning.py deleted file mode 100755 index 0848fcde64..0000000000 --- a/test/functional/p2p-versionbits-warning.py +++ /dev/null @@ -1,125 +0,0 @@ -#!/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() |