mirror of
https://github.com/bitcoin/bitcoin.git
synced 2024-11-19 09:53:47 +01:00
a0473442d1
-BEGIN VERIFY SCRIPT- sed -i -e 's/\s*().main\s*()/(__file__).main()/' $(git ls-files test/functional/*.py) sed -i -e 's/def __init__(self)/def __init__(self, test_file)/' test/functional/test_framework/test_framework.py -END VERIFY SCRIPT-
107 lines
5.0 KiB
Python
Executable File
107 lines
5.0 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# Copyright (c) 2020-2022 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 mempool descendants/ancestors information update.
|
|
|
|
Test mempool update of transaction descendants/ancestors information (count, size)
|
|
when transactions have been re-added from a disconnected block to the mempool.
|
|
"""
|
|
from math import ceil
|
|
import time
|
|
|
|
from test_framework.test_framework import BitcoinTestFramework
|
|
from test_framework.util import assert_equal
|
|
from test_framework.wallet import MiniWallet
|
|
|
|
|
|
class MempoolUpdateFromBlockTest(BitcoinTestFramework):
|
|
def set_test_params(self):
|
|
self.num_nodes = 1
|
|
self.extra_args = [['-limitdescendantsize=1000', '-limitancestorsize=1000', '-limitancestorcount=100']]
|
|
|
|
def transaction_graph_test(self, size, n_tx_to_mine=None, fee=100_000):
|
|
"""Create an acyclic tournament (a type of directed graph) of transactions and use it for testing.
|
|
|
|
Keyword arguments:
|
|
size -- the order N of the tournament which is equal to the number of the created transactions
|
|
n_tx_to_mine -- the number of transaction that should be mined into a block
|
|
|
|
If all of the N created transactions tx[0]..tx[N-1] reside in the mempool,
|
|
the following holds:
|
|
the tx[K] transaction:
|
|
- has N-K descendants (including this one), and
|
|
- has K+1 ancestors (including this one)
|
|
|
|
More details: https://en.wikipedia.org/wiki/Tournament_(graph_theory)
|
|
"""
|
|
wallet = MiniWallet(self.nodes[0])
|
|
first_block_hash = ''
|
|
tx_id = []
|
|
tx_size = []
|
|
self.log.info('Creating {} transactions...'.format(size))
|
|
for i in range(0, size):
|
|
self.log.debug('Preparing transaction #{}...'.format(i))
|
|
# Prepare inputs.
|
|
if i == 0:
|
|
inputs = [wallet.get_utxo()] # let MiniWallet provide a start UTXO
|
|
else:
|
|
inputs = []
|
|
for j, tx in enumerate(tx_id[0:i]):
|
|
# Transaction tx[K] is a child of each of previous transactions tx[0]..tx[K-1] at their output K-1.
|
|
vout = i - j - 1
|
|
inputs.append(wallet.get_utxo(txid=tx_id[j], vout=vout))
|
|
|
|
# Prepare outputs.
|
|
tx_count = i + 1
|
|
if tx_count < size:
|
|
# Transaction tx[K] is an ancestor of each of subsequent transactions tx[K+1]..tx[N-1].
|
|
n_outputs = size - tx_count
|
|
else:
|
|
n_outputs = 1
|
|
|
|
# Create a new transaction.
|
|
new_tx = wallet.send_self_transfer_multi(
|
|
from_node=self.nodes[0],
|
|
utxos_to_spend=inputs,
|
|
num_outputs=n_outputs,
|
|
fee_per_output=ceil(fee / n_outputs)
|
|
)
|
|
tx_id.append(new_tx['txid'])
|
|
tx_size.append(new_tx['tx'].get_vsize())
|
|
|
|
if tx_count in n_tx_to_mine:
|
|
# The created transactions are mined into blocks by batches.
|
|
self.log.info('The batch of {} transactions has been accepted into the mempool.'.format(len(self.nodes[0].getrawmempool())))
|
|
block_hash = self.generate(self.nodes[0], 1)[0]
|
|
if not first_block_hash:
|
|
first_block_hash = block_hash
|
|
assert_equal(len(self.nodes[0].getrawmempool()), 0)
|
|
self.log.info('All of the transactions from the current batch have been mined into a block.')
|
|
elif tx_count == size:
|
|
# At the end all of the mined blocks are invalidated, and all of the created
|
|
# transactions should be re-added from disconnected blocks to the mempool.
|
|
self.log.info('The last batch of {} transactions has been accepted into the mempool.'.format(len(self.nodes[0].getrawmempool())))
|
|
start = time.time()
|
|
self.nodes[0].invalidateblock(first_block_hash)
|
|
end = time.time()
|
|
assert_equal(len(self.nodes[0].getrawmempool()), size)
|
|
self.log.info('All of the recently mined transactions have been re-added into the mempool in {} seconds.'.format(end - start))
|
|
|
|
self.log.info('Checking descendants/ancestors properties of all of the in-mempool transactions...')
|
|
for k, tx in enumerate(tx_id):
|
|
self.log.debug('Check transaction #{}.'.format(k))
|
|
entry = self.nodes[0].getmempoolentry(tx)
|
|
assert_equal(entry['descendantcount'], size - k)
|
|
assert_equal(entry['descendantsize'], sum(tx_size[k:size]))
|
|
assert_equal(entry['ancestorcount'], k + 1)
|
|
assert_equal(entry['ancestorsize'], sum(tx_size[0:(k + 1)]))
|
|
|
|
def run_test(self):
|
|
# Use batch size limited by DEFAULT_ANCESTOR_LIMIT = 25 to not fire "too many unconfirmed parents" error.
|
|
self.transaction_graph_test(size=100, n_tx_to_mine=[25, 50, 75])
|
|
|
|
|
|
if __name__ == '__main__':
|
|
MempoolUpdateFromBlockTest(__file__).main()
|