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Stable release v32.1bitcoin/bitcoin · f0de87f04062 ↗3,020 source files · 47.5 MB stored on the server440 file guides

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1#!/usr/bin/env python3
2# Copyright (c) 2020-present The Bitcoin Core developers
3# Distributed under the MIT software license, see the accompanying
4# file COPYING or http://www.opensource.org/licenses/mit-license.php.
5"""Tests that a mempool transaction expires after a given timeout and that its
6children are removed as well.
7
8Both the default expiry timeout defined by DEFAULT_MEMPOOL_EXPIRY_HOURS and a user
9definable expiry timeout via the '-mempoolexpiry=<n>' command line argument
10(<n> is the timeout in hours) are tested.
11"""
12
13from datetime import timedelta
14
15from test_framework.messages import (
16    COIN,
17    DEFAULT_MEMPOOL_EXPIRY_HOURS,
18)
19from test_framework.test_framework import BitcoinTestFramework
20from test_framework.util import (
21    assert_equal,
22    assert_raises_rpc_error,
23)
24from test_framework.wallet import MiniWallet
25
26CUSTOM_MEMPOOL_EXPIRY = 10  # hours
27
28
29class MempoolExpiryTest(BitcoinTestFramework):
30    def set_test_params(self):
31        self.num_nodes = 1
32
33    def test_transaction_expiry(self, timeout):
34        """Tests that a transaction expires after the expiry timeout and its
35        children are removed as well."""
36        node = self.nodes[0]
37
38        # Send a parent transaction that will expire.
39        parent = self.wallet.send_self_transfer(from_node=node)
40        parent_txid = parent["txid"]
41        parent_utxo = self.wallet.get_utxo(txid=parent_txid)
42        independent_utxo = self.wallet.get_utxo()
43
44        # Add prioritisation to this transaction to check that it persists after the expiry
45        node.prioritisetransaction(parent_txid, 0, COIN)
46        assert_equal(node.getprioritisedtransactions()[parent_txid], { "fee_delta" : COIN, "in_mempool" : True, "modified_fee": COIN + COIN * parent["fee"] })
47
48        # Ensure the transactions we send to trigger the mempool check spend utxos that are independent of
49        # the transactions being tested for expiration.
50        trigger_utxo1 = self.wallet.get_utxo()
51        trigger_utxo2 = self.wallet.get_utxo()
52
53        # Set the mocktime to the arrival time of the parent transaction.
54        entry_time = node.getmempoolentry(parent_txid)['time']
55        node.setmocktime(entry_time)
56
57        # Let half of the timeout elapse and broadcast the child transaction spending the parent transaction.
58        half_expiry_time = entry_time + int(60 * 60 * timeout/2)
59        node.setmocktime(half_expiry_time)
60        child_txid = self.wallet.send_self_transfer(from_node=node, utxo_to_spend=parent_utxo)['txid']
61        assert_equal(parent_txid, node.getmempoolentry(child_txid)['depends'][0])
62        self.log.info('Broadcast child transaction after {} hours.'.format(
63            timedelta(seconds=(half_expiry_time-entry_time))))
64
65        # Broadcast another (independent) transaction.
66        independent_txid = self.wallet.send_self_transfer(from_node=node, utxo_to_spend=independent_utxo)['txid']
67
68        # Let most of the timeout elapse and check that the parent tx is still
69        # in the mempool.
70        nearly_expiry_time = entry_time + 60 * 60 * timeout - 5
71        node.setmocktime(nearly_expiry_time)
72        # Broadcast a transaction as the expiry of transactions in the mempool is only checked
73        # when a new transaction is added to the mempool.
74        self.wallet.send_self_transfer(from_node=node, utxo_to_spend=trigger_utxo1)
75        self.log.info('Test parent tx not expired after {} hours.'.format(
76            timedelta(seconds=(nearly_expiry_time-entry_time))))
77        assert_equal(entry_time, node.getmempoolentry(parent_txid)['time'])
78
79        # Transaction should be evicted from the mempool after the expiry time
80        # has passed.
81        expiry_time = entry_time + 60 * 60 * timeout + 5
82        node.setmocktime(expiry_time)
83        # Again, broadcast a transaction so the expiry of transactions in the mempool is checked.
84        self.wallet.send_self_transfer(from_node=node, utxo_to_spend=trigger_utxo2)
85        self.log.info('Test parent tx expiry after {} hours.'.format(
86            timedelta(seconds=(expiry_time-entry_time))))
87        assert_raises_rpc_error(-5, 'Transaction not in mempool',
88                                node.getmempoolentry, parent_txid)
89
90        # Prioritisation does not disappear when transaction expires
91        assert_equal(node.getprioritisedtransactions()[parent_txid], { "fee_delta" : COIN, "in_mempool" : False})
92
93        # The child transaction should be removed from the mempool as well.
94        self.log.info('Test child tx is evicted as well.')
95        assert_raises_rpc_error(-5, 'Transaction not in mempool',
96                                node.getmempoolentry, child_txid)
97
98        # Check that the independent tx is still in the mempool.
99        self.log.info('Test the independent tx not expired after {} hours.'.format(
100            timedelta(seconds=(expiry_time-half_expiry_time))))
101        assert_equal(half_expiry_time, node.getmempoolentry(independent_txid)['time'])
102
103    def run_test(self):
104        self.wallet = MiniWallet(self.nodes[0])
105
106        self.log.info('Test default mempool expiry timeout of %d hours.' %
107                      DEFAULT_MEMPOOL_EXPIRY_HOURS)
108        self.test_transaction_expiry(DEFAULT_MEMPOOL_EXPIRY_HOURS)
109
110        self.log.info('Test custom mempool expiry timeout of %d hours.' %
111                      CUSTOM_MEMPOOL_EXPIRY)
112        self.restart_node(0, ['-mempoolexpiry=%d' % CUSTOM_MEMPOOL_EXPIRY])
113        self.test_transaction_expiry(CUSTOM_MEMPOOL_EXPIRY)
114
115
116if __name__ == '__main__':
117    MempoolExpiryTest(__file__).main()
118

src/wallet/receive.cpp

src/wallet/coinselection.cpp

src/consensus/validation.h

src/primitives/transaction.cpp

src/script/descriptor.cpp

src/bitcoin-cli.cpp

src/rpc/blockchain.cpp

src/rpc/rawtransaction.cpp

src/init.cpp

src/crypto/sha256.cpp

src/consensus/merkle.h

src/consensus/tx_check.h

src/consensus/tx_verify.h

src/policy/feerate.h

src/policy/feerate.cpp

src/primitives/transaction_identifier.h

src/chainparamsbase.h

src/chainparamsbase.cpp

src/util/moneystr.cpp

src/crypto/ripemd160.h

src/crypto/sha1.h

src/crypto/sha512.h

src/crypto/hmac_sha256.h

src/crypto/hmac_sha512.h

src/crypto/hmac_sha256.cpp

src/crypto/hmac_sha512.cpp

src/crypto/hkdf_sha256_32.h

src/crypto/hkdf_sha256_32.cpp

src/support/cleanse.h

src/support/cleanse.cpp

src/crypto/siphash.cpp

src/crypto/muhash.h

src/crypto/chacha20.h

src/crypto/poly1305.h

src/crypto/chacha20poly1305.h

src/crypto/chacha20poly1305.cpp

src/util/chaintype.cpp

src/util/obfuscation.h

src/util/byte_units.h

src/util/overflow.h

src/blockencodings.cpp

src/net_permissions.cpp

src/policy/packages.cpp

src/policy/rbf.cpp

src/policy/truc_policy.cpp

src/policy/ephemeral_policy.cpp

src/policy/settings.cpp

src/policy/policy.cpp

src/node/transaction.cpp

src/node/coin.cpp

src/rpc/client.cpp

src/rpc/external_signer.cpp

src/rpc/request.cpp

src/rpc/server_util.cpp

src/rpc/fees.cpp

src/rpc/output_script.cpp

src/rpc/rawtransaction_util.cpp

src/rpc/rawtransaction_util.h

src/rpc/register.h

src/rpc/request.h

src/rpc/server_util.h

src/rpc/protocol.h

src/rpc/server.h

src/rpc/signmessage.cpp

src/rpc/txoutproof.cpp

src/rpc/util.cpp

src/rpc/util.h

src/wallet/rpc/addresses.cpp

src/wallet/rpc/backup.cpp

src/wallet/rpc/coins.cpp

src/wallet/rpc/encrypt.cpp

src/wallet/rpc/signmessage.cpp

src/wallet/rpc/util.cpp

src/wallet/rpc/util.h

src/wallet/coincontrol.cpp

src/wallet/coincontrol.h

src/wallet/context.cpp

src/wallet/context.h

src/wallet/crypter.cpp

src/wallet/crypter.h

src/wallet/db.cpp

src/wallet/export.cpp

src/wallet/external_signer_scriptpubkeyman.cpp

src/wallet/rpc/spend.cpp

src/wallet/rpc/transactions.cpp

src/wallet/rpc/wallet.cpp

src/wallet/feebumper.cpp

src/wallet/feebumper.h

src/index/base.h

src/index/base.cpp

src/index/txindex.h

src/index/txindex.cpp

src/index/txindex_key.h

src/index/txospenderindex.h

src/index/txospenderindex.cpp

src/index/blockfilterindex.h

src/index/blockfilterindex.cpp

src/index/coinstatsindex.h

src/index/coinstatsindex.cpp

src/index/db_key.h

src/index/disktxpos.h

src/kernel/chain.cpp

src/kernel/chain.h

src/kernel/checks.cpp

src/kernel/checks.h

src/kernel/context.cpp

src/kernel/context.h

src/kernel/cs_main.cpp

src/kernel/cs_main.h

src/kernel/disconnected_transactions.cpp

src/kernel/disconnected_transactions.h

src/kernel/mempool_removal_reason.cpp

src/kernel/mempool_removal_reason.h

src/kernel/coinstats.cpp

src/kernel/coinstats.h

src/kernel/chainparams.cpp

src/kernel/chainparams.h

src/wallet/sqlite.cpp

src/wallet/sqlite.h

src/wallet/transaction.cpp

src/wallet/transaction.h

src/wallet/dump.cpp

src/wallet/dump.h

src/wallet/init.cpp

src/wallet/walletutil.cpp

src/wallet/walletutil.h

src/wallet/wallettool.cpp

src/wallet/wallettool.h

src/wallet/export.h

src/wallet/migrate.cpp

src/wallet/migrate.h

src/wallet/db.h

src/wallet/walletdb.cpp

src/wallet/interfaces.cpp

src/wallet/scriptpubkeyman.cpp

src/wallet/scriptpubkeyman.h

src/kernel/bitcoinkernel.cpp

src/kernel/bitcoinkernel.h

src/kernel/bitcoinkernel_wrapper.h

src/node/chainstate.cpp

src/node/chainstate.h

src/node/blockstorage.cpp

src/node/blockstorage.h

src/node/mempool_persist.cpp

src/node/mempool_persist.h

src/node/utxo_snapshot.cpp

src/node/utxo_snapshot.h

src/node/kernel_notifications.cpp

src/node/kernel_notifications.h

src/node/blockmanager_args.cpp

src/kernel/blockmanager_opts.h

src/util/expected.cpp

src/policy/settings.h

src/util/types.h

src/kernel/messagestartchars.h

src/kernel/warning.h

src/util/exception.h

src/common/license_info.h

src/node/coins_view_args.h

src/node/database_args.h

src/util/batchpriority.h

src/util/ui_change_type.h

src/node/coins_view_args.cpp

src/node/peerman_args.h

src/util/serfloat.h

src/node/blockmanager_args.h

src/node/database_args.cpp

src/util/overloaded.h

src/interfaces/types.h

src/node/chainstatemanager_args.h

src/node/minisketchwrapper.h

src/util/macros.h

src/util/syserror.h

src/common/run_command.h

src/util/bytevectorhash.cpp

src/node/mempool_persist_args.cpp

src/util/exec.h

src/util/rbf.h

src/crypto/hex_base.h

src/node/mempool_persist_args.h

src/interfaces/echo.h

src/util/any.h

src/util/batchpriority.cpp

src/util/threadnames.h

src/node/coin.h

src/node/mempool_args.h

src/util/asmap.h

src/util/bytevectorhash.h

src/node/context.cpp

src/util/insert.h

src/util/readwritefile.h

src/node/peerman_args.cpp

src/node/interface_ui.cpp

src/interfaces/handler.h

src/node/mining_args.h

src/util/hasher.cpp

src/common/init.h

src/kernel/mempool_limits.h

src/common/system.h

src/crypto/sha3.h

src/util/threadinterrupt.cpp

src/node/protocol_version.h

src/util/exception.cpp

src/common/messages.h

src/node/connection_types.cpp

src/util/bip32.h

src/common/license_info.cpp

src/util/stdmutex.h

src/common/run_command.cpp

src/util/check.cpp

src/util/golombrice.h

src/node/types.h

src/node/timeoffsets.h

src/util/readwritefile.cpp

src/util/fastrange.h

src/util/signalinterrupt.h

src/util/task_runner.h

src/util/syserror.cpp

src/common/interfaces.cpp

src/common/types.h

src/util/threadinterrupt.h

src/kernel/chainstatemanager_opts.h

src/node/psbt.h

src/policy/ephemeral_policy.h

src/util/trace.h

src/common/url.cpp

src/kernel/mempool_options.h

src/util/serfloat.cpp

src/kernel/notifications_interface.h

src/node/timeoffsets.cpp

src/node/warnings.cpp

src/util/hash_type.h

src/crypto/hex_base.cpp

src/node/eviction.h

src/util/tokenbucket.h

src/crypto/aes.h

src/common/pcp.h

src/util/feefrac.cpp

src/node/transaction.h

src/util/threadnames.cpp

src/common/signmessage.h

src/util/exec.cpp

src/util/signalinterrupt.cpp

src/clientversion.cpp

src/common/signmessage.cpp

src/compat/assumptions.h

src/compat/byteswap.h

src/deploymentinfo.cpp

src/deploymentinfo.h

src/deploymentstatus.cpp

src/deploymentstatus.h

src/dummywallet.cpp

src/external_signer.h

src/init/bitcoin-gui.cpp

src/init/bitcoin-node.cpp

src/init/bitcoin-qt.cpp

src/init/bitcoin-wallet.cpp

src/init/bitcoind.cpp

src/init/common.h

src/interfaces/init.h

src/interfaces/ipc.h

src/key_io.h

src/logging/categories.h

src/logging/timer.h

src/mapport.h

src/musig.h

src/net_permissions.h

src/netgroup.h

src/netmessagemaker.h

src/node/chainstatemanager_args.cpp

src/node/connection_types.h

src/node/context.h

src/node/interface_ui.h

src/node/mempool_args.cpp

src/node/mining_args.cpp

src/node/minisketchwrapper.cpp

src/node/txreconciliation.h

src/policy/fees/estimator_args.cpp

src/policy/fees/estimator_args.h

src/policy/fees/estimator_man.cpp

src/policy/fees/estimator_man.h

src/policy/packages.h

src/policy/rbf.h

src/policy/truc_policy.h

src/pow.h

src/primitives/block.cpp

src/randomenv.h

src/rest.h

src/script/keyorigin.h

src/script/parsing.cpp

src/script/parsing.h

src/script/script_error.h

src/script/sigcache.cpp

src/script/sigcache.h

src/script/solver.h

src/script/verify_flags.h

src/semaphore_grant.h

src/signet.h

src/span.h

src/support/allocators/secure.h

src/support/allocators/zeroafterfree.h

src/util/tokenpipe.cpp

src/util/translation.h

src/util/vector.h

src/versionbits.h

src/versionbits_impl.h

src/wallet/external_signer_scriptpubkeyman.h

src/wallet/fees.h

src/wallet/load.h

src/wallet/receive.h

src/wallet/rpc/wallet.h

src/wallet/types.h

src/walletinitinterface.h

src/zmq/zmqabstractnotifier.cpp

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