167 lines
6.8 KiB
Python
Executable File
167 lines
6.8 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2015-2018 The Dash Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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from test_framework.mininode import *
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from test_framework.test_framework import DashTestFramework
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from test_framework.util import *
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from time import *
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'''
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llmq-chainlocks.py
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Checks LLMQs based ChainLocks
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'''
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class LLMQChainLocksTest(DashTestFramework):
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def __init__(self):
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super().__init__(6, 5, [], fast_dip3_enforcement=True)
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def run_test(self):
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while self.nodes[0].getblockchaininfo()["bip9_softforks"]["dip0008"]["status"] != "active":
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self.nodes[0].generate(10)
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sync_blocks(self.nodes, timeout=60*5)
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self.nodes[0].spork("SPORK_17_QUORUM_DKG_ENABLED", 0)
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self.nodes[0].spork("SPORK_19_CHAINLOCKS_ENABLED", 0)
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self.wait_for_sporks_same()
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for i in range(4):
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self.mine_quorum()
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# mine single block, wait for chainlock
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self.nodes[0].generate(1)
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self.wait_for_chainlock_tip_all_nodes()
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# mine many blocks, wait for chainlock
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self.nodes[0].generate(20)
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self.wait_for_chainlock_tip_all_nodes()
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# assert that all blocks up until the tip are chainlocked
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for h in range(1, self.nodes[0].getblockcount()):
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block = self.nodes[0].getblock(self.nodes[0].getblockhash(h))
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assert(block['chainlock'])
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# Isolate node, mine on another, and reconnect
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isolate_node(self.nodes[0])
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node0_tip = self.nodes[0].getbestblockhash()
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self.nodes[1].generate(5)
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self.wait_for_chainlock_tip(self.nodes[1])
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assert(self.nodes[0].getbestblockhash() == node0_tip)
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reconnect_isolated_node(self.nodes[0], 1)
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self.nodes[1].generate(1)
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self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
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# Isolate node, mine on both parts of the network, and reconnect
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isolate_node(self.nodes[0])
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self.nodes[0].generate(5)
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self.nodes[1].generate(1)
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good_tip = self.nodes[1].getbestblockhash()
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self.wait_for_chainlock_tip(self.nodes[1])
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assert(not self.nodes[0].getblock(self.nodes[0].getbestblockhash())["chainlock"])
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reconnect_isolated_node(self.nodes[0], 1)
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self.nodes[1].generate(1)
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self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
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assert(self.nodes[0].getblock(self.nodes[0].getbestblockhash())["previousblockhash"] == good_tip)
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assert(self.nodes[1].getblock(self.nodes[1].getbestblockhash())["previousblockhash"] == good_tip)
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# Keep node connected and let it try to reorg the chain
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good_tip = self.nodes[0].getbestblockhash()
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# Restart it so that it forgets all the chainlocks from the past
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self.stop_node(self.nodes[0], 0)
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self.nodes[0] = start_node(0, self.options.tmpdir, self.extra_args)
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connect_nodes(self.nodes[0], 1)
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self.nodes[0].invalidateblock(self.nodes[0].getbestblockhash())
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# Now try to reorg the chain
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self.nodes[0].generate(2)
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sleep(6)
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assert(self.nodes[1].getbestblockhash() == good_tip)
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self.nodes[0].generate(2)
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sleep(6)
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assert(self.nodes[1].getbestblockhash() == good_tip)
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# Now let the node which is on the wrong chain reorg back to the locked chain
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self.nodes[0].reconsiderblock(good_tip)
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assert(self.nodes[0].getbestblockhash() != good_tip)
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self.nodes[1].generate(1)
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self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
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assert(self.nodes[0].getbestblockhash() == self.nodes[1].getbestblockhash())
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# Enable LLMQ bases InstantSend, which also enables checks for "safe" transactions
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self.nodes[0].spork("SPORK_20_INSTANTSEND_LLMQ_BASED", 0)
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self.wait_for_sporks_same()
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# Isolate a node and let it create some transactions which won't get IS locked
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isolate_node(self.nodes[0])
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txs = []
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for i in range(3):
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txs.append(self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 1))
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txs += self.create_chained_txs(self.nodes[0], 1)
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# Assert that after block generation these TXs are NOT included (as they are "unsafe")
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self.nodes[0].generate(1)
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for txid in txs:
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tx = self.nodes[0].getrawtransaction(txid, 1)
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assert("confirmations" not in tx)
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sleep(1)
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assert(not self.nodes[0].getblock(self.nodes[0].getbestblockhash())["chainlock"])
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# Disable LLMQ based InstantSend for a very short time (this never gets propagated to other nodes)
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self.nodes[0].spork("SPORK_20_INSTANTSEND_LLMQ_BASED", 4070908800)
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# Now the TXs should be included
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self.nodes[0].generate(1)
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self.nodes[0].spork("SPORK_20_INSTANTSEND_LLMQ_BASED", 0)
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# Assert that TXs got included now
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for txid in txs:
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tx = self.nodes[0].getrawtransaction(txid, 1)
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assert("confirmations" in tx and tx["confirmations"] > 0)
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# Enable network on first node again, which will cause the blocks to propagate and IS locks to happen retroactively
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# for the mined TXs, which will then allow the network to create a CLSIG
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reconnect_isolated_node(self.nodes[0], 1)
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self.wait_for_chainlock(self.nodes[0], self.nodes[1].getbestblockhash())
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def wait_for_chainlock_tip_all_nodes(self):
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for node in self.nodes:
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tip = node.getbestblockhash()
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self.wait_for_chainlock(node, tip)
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def wait_for_chainlock_tip(self, node):
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tip = node.getbestblockhash()
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self.wait_for_chainlock(node, tip)
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def wait_for_chainlock(self, node, block_hash):
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t = time()
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while time() - t < 15:
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try:
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block = node.getblock(block_hash)
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if block["confirmations"] > 0 and block["chainlock"]:
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return
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except:
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# block might not be on the node yet
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pass
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sleep(0.1)
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raise AssertionError("wait_for_chainlock timed out")
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def create_chained_txs(self, node, amount):
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txid = node.sendtoaddress(node.getnewaddress(), amount)
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tx = node.getrawtransaction(txid, 1)
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inputs = []
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valueIn = 0
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for txout in tx["vout"]:
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inputs.append({"txid": txid, "vout": txout["n"]})
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valueIn += txout["value"]
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outputs = {
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node.getnewaddress(): round(float(valueIn) - 0.0001, 6)
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}
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rawtx = node.createrawtransaction(inputs, outputs)
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rawtx = node.signrawtransaction(rawtx)
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rawtxid = node.sendrawtransaction(rawtx["hex"])
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return [txid, rawtxid]
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if __name__ == '__main__':
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LLMQChainLocksTest().main()
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