dash/qa/rpc-tests/llmq-chainlocks.py
2019-01-28 12:24:15 +01:00

116 lines
4.3 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2015-2018 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from test_framework.mininode import *
from test_framework.test_framework import DashTestFramework
from test_framework.util import *
from time import *
'''
llmq-chainlocks.py
Checks LLMQs based ChainLocks
'''
class LLMQChainLocksTest(DashTestFramework):
def __init__(self):
super().__init__(11, 10, [], fast_dip3_activation=True)
def run_test(self):
self.nodes[0].spork("SPORK_17_QUORUM_DKG_ENABLED", 0)
self.nodes[0].spork("SPORK_19_CHAINLOCKS_ENABLED", 0)
self.wait_for_sporks_same()
for i in range(4):
self.mine_quorum()
# mine single block, wait for chainlock
self.nodes[0].generate(1)
self.wait_for_chainlock_tip_all_nodes()
# mine many blocks, wait for chainlock
self.nodes[0].generate(20)
self.wait_for_chainlock_tip_all_nodes()
# assert that all blocks up until the tip are chainlocked
for h in range(1, self.nodes[0].getblockcount()):
block = self.nodes[0].getblock(self.nodes[0].getblockhash(h))
assert(block['chainlock'])
# Isolate node, mine on another, and reconnect
self.nodes[0].setnetworkactive(False)
node0_tip = self.nodes[0].getbestblockhash()
self.nodes[1].generate(5)
self.wait_for_chainlock_tip(self.nodes[1])
assert(self.nodes[0].getbestblockhash() == node0_tip)
self.nodes[0].setnetworkactive(True)
connect_nodes(self.nodes[0], 1)
self.nodes[1].generate(1)
self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
# Isolate node, mine on both parts of the network, and reconnect
self.nodes[0].setnetworkactive(False)
self.nodes[0].generate(5)
self.nodes[1].generate(1)
good_tip = self.nodes[1].getbestblockhash()
self.wait_for_chainlock_tip(self.nodes[1])
assert(not self.nodes[0].getblock(self.nodes[0].getbestblockhash())["chainlock"])
self.nodes[0].setnetworkactive(True)
connect_nodes(self.nodes[0], 1)
self.nodes[1].generate(1)
self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
assert(self.nodes[0].getblock(self.nodes[0].getbestblockhash())["previousblockhash"] == good_tip)
assert(self.nodes[1].getblock(self.nodes[1].getbestblockhash())["previousblockhash"] == good_tip)
# Keep node connected and let it try to reorg the chain
good_tip = self.nodes[0].getbestblockhash()
self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash())
# Restart it so that it forgets all the chainlocks from the past
stop_node(self.nodes[0], 0)
self.nodes[0] = start_node(0, self.options.tmpdir, self.extra_args)
connect_nodes(self.nodes[0], 1)
# Now try to reorg the chain
self.nodes[0].generate(2)
sleep(2)
assert(self.nodes[1].getbestblockhash() == good_tip)
self.nodes[0].generate(2)
sleep(2)
assert(self.nodes[1].getbestblockhash() == good_tip)
# Now let the node which is on the wrong chain reorg back to the locked chain
self.nodes[0].reconsiderblock(good_tip)
assert(self.nodes[0].getbestblockhash() != good_tip)
self.nodes[1].generate(1)
self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
assert(self.nodes[0].getbestblockhash() == self.nodes[1].getbestblockhash())
def wait_for_chainlock_tip_all_nodes(self):
for node in self.nodes:
tip = node.getbestblockhash()
self.wait_for_chainlock(node, tip)
def wait_for_chainlock_tip(self, node):
tip = node.getbestblockhash()
self.wait_for_chainlock(node, tip)
def wait_for_chainlock(self, node, block_hash):
t = time()
while time() - t < 15:
try:
block = node.getblock(block_hash)
if block["chainlock"]:
return
except:
# block might not be on the node yet
pass
sleep(0.1)
raise AssertionError("wait_for_chainlock timed out")
if __name__ == '__main__':
LLMQChainLocksTest().main()