dash/test/functional/rpc_dumptxoutset.py
Kittywhiskers Van Gogh 3ba8431900 merge bitcoin#16899: UTXO snapshot creation (dumptxoutset)
Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>
2022-05-23 10:38:33 +05:30

52 lines
1.9 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2019 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 the generation of UTXO snapshots using `dumptxoutset`.
"""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal, assert_raises_rpc_error
import hashlib
from pathlib import Path
class DumptxoutsetTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 1
def run_test(self):
"""Test a trivial usage of the dumptxoutset RPC command."""
node = self.nodes[0]
mocktime = node.getblockheader(node.getblockhash(0))['time'] + 1
node.setmocktime(mocktime)
node.generate(100)
FILENAME = 'txoutset.dat'
out = node.dumptxoutset(FILENAME)
expected_path = Path(node.datadir) / self.chain / FILENAME
assert expected_path.is_file()
assert_equal(out['coins_written'], 100)
assert_equal(out['base_height'], 100)
assert_equal(out['path'], str(expected_path))
# Blockhash should be deterministic based on mocked time.
assert_equal(
out['base_hash'],
'65a627bab5f50aea8e69acbf9fcbe6e5162bd556ce1c46f0ec4452afaedbb702')
with open(str(expected_path), 'rb') as f:
digest = hashlib.sha256(f.read()).hexdigest()
# UTXO snapshot hash should be deterministic based on mocked time.
assert_equal(
digest, '1d34e230e9d7d5691aaa03684492798ca8f92a9254c6cf80528241bf35939869')
# Specifying a path to an existing file will fail.
assert_raises_rpc_error(
-8, '{} already exists'.format(FILENAME), node.dumptxoutset, FILENAME)
if __name__ == '__main__':
DumptxoutsetTest().main()