mirror of
https://github.com/dashpay/dash.git
synced 2024-12-26 12:32:48 +01:00
87 lines
3.2 KiB
Python
Executable File
87 lines
3.2 KiB
Python
Executable File
#!/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 UTXO set hash value calculation in gettxoutsetinfo."""
|
|
|
|
import struct
|
|
|
|
from test_framework.blocktools import create_transaction
|
|
from test_framework.messages import (
|
|
CBlock,
|
|
COutPoint,
|
|
FromHex,
|
|
)
|
|
from test_framework.crypto.muhash import MuHash3072
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal
|
|
|
|
class UTXOSetHashTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
self.setup_clean_chain = True
|
|
|
|
def skip_test_if_missing_module(self):
|
|
self.skip_if_no_wallet()
|
|
|
|
def test_deterministic_hash_results(self):
|
|
self.log.info("Test deterministic UTXO set hash results")
|
|
|
|
# These depend on the setup_clean_chain option, the chain loaded from the cache
|
|
assert_equal(self.nodes[0].gettxoutsetinfo()['hash_serialized_2'], "b61ee2cb582d2f4f94493f3d480e9a59d064706e98a12be0f335a3eeadd5678a")
|
|
assert_equal(self.nodes[0].gettxoutsetinfo("muhash")['muhash'], "dd5ad2a105c2d29495f577245c357409002329b9f4d6182c0af3dc2f462555c8")
|
|
|
|
def test_muhash_implementation(self):
|
|
self.log.info("Test MuHash implementation consistency")
|
|
|
|
node = self.nodes[0]
|
|
|
|
# Generate 100 blocks and remove the first since we plan to spend its
|
|
# coinbase
|
|
block_hashes = node.generate(100)
|
|
blocks = list(map(lambda block: FromHex(CBlock(), node.getblock(block, False)), block_hashes))
|
|
spending = blocks.pop(0)
|
|
|
|
# Create a spending transaction and mine a block which includes it
|
|
tx = create_transaction(node, spending.vtx[0].rehash(), node.getnewaddress(), amount=49)
|
|
txid = node.sendrawtransaction(hexstring=tx.serialize().hex(), maxfeerate=0)
|
|
|
|
tx_block = node.generateblock(node.getnewaddress(), [txid])['hash']
|
|
blocks.append(FromHex(CBlock(), node.getblock(tx_block, False)))
|
|
|
|
# Serialize the outputs that should be in the UTXO set and add them to
|
|
# a MuHash object
|
|
muhash = MuHash3072()
|
|
|
|
for height, block in enumerate(blocks):
|
|
# The Genesis block coinbase is not part of the UTXO set and we
|
|
# spent the first mined block
|
|
height += 2
|
|
|
|
for tx in block.vtx:
|
|
for n, tx_out in enumerate(tx.vout):
|
|
coinbase = 1 if not tx.vin[0].prevout.hash else 0
|
|
|
|
# Skip witness commitment
|
|
if (coinbase and n > 0):
|
|
continue
|
|
|
|
data = COutPoint(int(tx.rehash(), 16), n).serialize()
|
|
data += struct.pack("<i", height * 2 + coinbase)
|
|
data += tx_out.serialize()
|
|
|
|
muhash.insert(data)
|
|
|
|
finalized = muhash.digest()
|
|
node_muhash = node.gettxoutsetinfo("muhash")['muhash']
|
|
|
|
assert_equal(finalized[::-1].hex(), node_muhash)
|
|
|
|
def run_test(self):
|
|
self.test_deterministic_hash_results()
|
|
self.test_muhash_implementation()
|
|
|
|
|
|
if __name__ == '__main__':
|
|
UTXOSetHashTest().main()
|