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author | Wladimir J. van der Laan <laanwj@protonmail.com> | 2019-11-05 19:38:45 +0100 |
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committer | Wladimir J. van der Laan <laanwj@protonmail.com> | 2019-11-05 19:40:18 +0100 |
commit | b05b28183c0aa5970dc927a5b10bc5552ae38df1 (patch) | |
tree | 9aaf30a172b60b16c1b0657a12c22bfd2e573f9f /test/functional | |
parent | d35b12107e9ef16343b2ded542bbf345a753d780 (diff) | |
parent | 92b2f5306ba0b3f031293cb8f415b67cb002c2f1 (diff) | |
download | bitcoin-b05b28183c0aa5970dc927a5b10bc5552ae38df1.tar.xz |
Merge #16899: UTXO snapshot creation (dumptxoutset)
92b2f5306ba0b3f031293cb8f415b67cb002c2f1 test: add dumptxoutset RPC test (James O'Beirne)
c1ccbc3ddef931896a7e9dcfa6704e305a69fbff devtools: add utxo_snapshot.sh (James O'Beirne)
57cf74c9918d10c69a46e6ceb3cb1a5e04edf5bc rpc: add dumptxoutset (James O'Beirne)
92fafb3a7da66f737e960e541fcfbcadedf6043a coinstats: add coins_count (James O'Beirne)
707fde7b9ba522c22179e2db0ed7b462c65138d9 add unused SnapshotMetadata class (James O'Beirne)
Pull request description:
This is part of the [assumeutxo project](https://github.com/bitcoin/bitcoin/projects/11):
Parent PR: #15606
Issue: #15605
Specification: https://github.com/jamesob/assumeutxo-docs/tree/master/proposal
---
This changeset defines the serialization format for UTXO snapshots and adds an RPC command for creating them, `dumptxoutset`. It also adds a convenience script for generating and verifying snapshots at a certain height, since that requires doing a hacky rewind of the chain via `invalidateblock`.
All of this is unused at the moment.
ACKs for top commit:
laanwj:
ACK 92b2f5306ba0b3f031293cb8f415b67cb002c2f1
Tree-SHA512: 200dff87767f157d627e99506ec543465d9329860a6cd49363081619c437163a640a46d008faa92b1f44fd403bfc7a7c9e851c658b5a4849efa9a34ca976bf31
Diffstat (limited to 'test/functional')
-rwxr-xr-x | test/functional/rpc_dumptxoutset.py | 51 | ||||
-rwxr-xr-x | test/functional/test_runner.py | 1 |
2 files changed, 52 insertions, 0 deletions
diff --git a/test/functional/rpc_dumptxoutset.py b/test/functional/rpc_dumptxoutset.py new file mode 100755 index 0000000000..7527bdfb08 --- /dev/null +++ b/test/functional/rpc_dumptxoutset.py @@ -0,0 +1,51 @@ +#!/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) / 'regtest' / 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'], + '6fd417acba2a8738b06fee43330c50d58e6a725046c3d843c8dd7e51d46d1ed6') + + 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, 'be032e5f248264ba08e11099ac09dbd001f6f87ffc68bf0f87043d8146d50664') + + # 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() diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py index 6665d2e7f5..9b4a5d2030 100755 --- a/test/functional/test_runner.py +++ b/test/functional/test_runner.py @@ -191,6 +191,7 @@ BASE_SCRIPTS = [ 'rpc_uptime.py', 'wallet_resendwallettransactions.py', 'wallet_fallbackfee.py', + 'rpc_dumptxoutset.py', 'feature_minchainwork.py', 'rpc_getblockstats.py', 'wallet_create_tx.py', |