1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
#!/usr/bin/env python3
# Copyright (c) 2019-2022 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.blocktools import COINBASE_MATURITY
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_raises_rpc_error,
sha256sum_file,
)
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)
self.generate(node, COINBASE_MATURITY)
FILENAME = 'txoutset.dat'
out = node.dumptxoutset(FILENAME)
expected_path = node.datadir_path / 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'],
'09abf0e7b510f61ca6cf33bab104e9ee99b3528b371d27a2d4b39abb800fba7e')
# UTXO snapshot hash should be deterministic based on mocked time.
assert_equal(
sha256sum_file(str(expected_path)).hex(),
'b1bacb602eacf5fbc9a7c2ef6eeb0d229c04e98bdf0c2ea5929012cd0eae3830')
assert_equal(
out['txoutset_hash'], '1f7e3befd45dc13ae198dfbb22869a9c5c4196f8e9ef9735831af1288033f890')
assert_equal(out['nchaintx'], 101)
# Specifying a path to an existing or invalid file will fail.
assert_raises_rpc_error(
-8, '{} already exists'.format(FILENAME), node.dumptxoutset, FILENAME)
invalid_path = node.datadir_path / "invalid" / "path"
assert_raises_rpc_error(
-8, "Couldn't open file {}.incomplete for writing".format(invalid_path), node.dumptxoutset, invalid_path)
if __name__ == '__main__':
DumptxoutsetTest().main()
|
