You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
300 lines
13 KiB
300 lines
13 KiB
#!/usr/bin/env python3 |
|
# Copyright (c) 2016-2017 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 bumpfee RPC. |
|
|
|
Verifies that the bumpfee RPC creates replacement transactions successfully when |
|
its preconditions are met, and returns appropriate errors in other cases. |
|
|
|
This module consists of around a dozen individual test cases implemented in the |
|
top-level functions named as test_<test_case_description>. The test functions |
|
can be disabled or reordered if needed for debugging. If new test cases are |
|
added in the future, they should try to follow the same convention and not |
|
make assumptions about execution order. |
|
""" |
|
|
|
from test_framework.blocktools import send_to_witness |
|
from test_framework.test_framework import BitcoinTestFramework |
|
from test_framework import blocktools |
|
from test_framework.mininode import CTransaction |
|
from test_framework.util import * |
|
|
|
import io |
|
|
|
# Sequence number that is BIP 125 opt-in and BIP 68-compliant |
|
BIP125_SEQUENCE_NUMBER = 0xfffffffd |
|
|
|
WALLET_PASSPHRASE = "test" |
|
WALLET_PASSPHRASE_TIMEOUT = 3600 |
|
|
|
|
|
class BumpFeeTest(BitcoinTestFramework): |
|
def set_test_params(self): |
|
self.num_nodes = 2 |
|
self.setup_clean_chain = True |
|
self.extra_args = [["-prematurewitness", "-walletprematurewitness", "-deprecatedrpc=addwitnessaddress", "-walletrbf={}".format(i)] |
|
for i in range(self.num_nodes)] |
|
|
|
def run_test(self): |
|
# Encrypt wallet for test_locked_wallet_fails test |
|
self.nodes[1].node_encrypt_wallet(WALLET_PASSPHRASE) |
|
self.start_node(1) |
|
self.nodes[1].walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT) |
|
|
|
connect_nodes_bi(self.nodes, 0, 1) |
|
self.sync_all() |
|
|
|
peer_node, rbf_node = self.nodes |
|
rbf_node_address = rbf_node.getnewaddress() |
|
|
|
# fund rbf node with 10 coins of 0.001 btc (100,000 satoshis) |
|
self.log.info("Mining blocks...") |
|
peer_node.generate(110) |
|
self.sync_all() |
|
for i in range(25): |
|
peer_node.sendtoaddress(rbf_node_address, 0.001) |
|
self.sync_all() |
|
peer_node.generate(1) |
|
self.sync_all() |
|
assert_equal(rbf_node.getbalance(), Decimal("0.025")) |
|
|
|
self.log.info("Running tests") |
|
dest_address = peer_node.getnewaddress() |
|
test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address) |
|
test_segwit_bumpfee_succeeds(rbf_node, dest_address) |
|
test_nonrbf_bumpfee_fails(peer_node, dest_address) |
|
test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address) |
|
test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address) |
|
test_small_output_fails(rbf_node, dest_address) |
|
test_dust_to_fee(rbf_node, dest_address) |
|
test_settxfee(rbf_node, dest_address) |
|
test_rebumping(rbf_node, dest_address) |
|
test_rebumping_not_replaceable(rbf_node, dest_address) |
|
test_unconfirmed_not_spendable(rbf_node, rbf_node_address) |
|
test_bumpfee_metadata(rbf_node, dest_address) |
|
test_locked_wallet_fails(rbf_node, dest_address) |
|
self.log.info("Success") |
|
|
|
|
|
def test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address): |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
rbftx = rbf_node.gettransaction(rbfid) |
|
sync_mempools((rbf_node, peer_node)) |
|
assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool() |
|
bumped_tx = rbf_node.bumpfee(rbfid) |
|
assert_equal(bumped_tx["errors"], []) |
|
assert bumped_tx["fee"] - abs(rbftx["fee"]) > 0 |
|
# check that bumped_tx propagates, original tx was evicted and has a wallet conflict |
|
sync_mempools((rbf_node, peer_node)) |
|
assert bumped_tx["txid"] in rbf_node.getrawmempool() |
|
assert bumped_tx["txid"] in peer_node.getrawmempool() |
|
assert rbfid not in rbf_node.getrawmempool() |
|
assert rbfid not in peer_node.getrawmempool() |
|
oldwtx = rbf_node.gettransaction(rbfid) |
|
assert len(oldwtx["walletconflicts"]) > 0 |
|
# check wallet transaction replaces and replaced_by values |
|
bumpedwtx = rbf_node.gettransaction(bumped_tx["txid"]) |
|
assert_equal(oldwtx["replaced_by_txid"], bumped_tx["txid"]) |
|
assert_equal(bumpedwtx["replaces_txid"], rbfid) |
|
|
|
|
|
def test_segwit_bumpfee_succeeds(rbf_node, dest_address): |
|
# Create a transaction with segwit output, then create an RBF transaction |
|
# which spends it, and make sure bumpfee can be called on it. |
|
|
|
segwit_in = next(u for u in rbf_node.listunspent() if u["amount"] == Decimal("0.001")) |
|
segwit_out = rbf_node.validateaddress(rbf_node.getnewaddress()) |
|
rbf_node.addwitnessaddress(segwit_out["address"]) |
|
segwitid = send_to_witness( |
|
use_p2wsh=False, |
|
node=rbf_node, |
|
utxo=segwit_in, |
|
pubkey=segwit_out["pubkey"], |
|
encode_p2sh=False, |
|
amount=Decimal("0.0009"), |
|
sign=True) |
|
|
|
rbfraw = rbf_node.createrawtransaction([{ |
|
'txid': segwitid, |
|
'vout': 0, |
|
"sequence": BIP125_SEQUENCE_NUMBER |
|
}], {dest_address: Decimal("0.0005"), |
|
rbf_node.getrawchangeaddress(): Decimal("0.0003")}) |
|
rbfsigned = rbf_node.signrawtransaction(rbfraw) |
|
rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"]) |
|
assert rbfid in rbf_node.getrawmempool() |
|
|
|
bumped_tx = rbf_node.bumpfee(rbfid) |
|
assert bumped_tx["txid"] in rbf_node.getrawmempool() |
|
assert rbfid not in rbf_node.getrawmempool() |
|
|
|
|
|
def test_nonrbf_bumpfee_fails(peer_node, dest_address): |
|
# cannot replace a non RBF transaction (from node which did not enable RBF) |
|
not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000")) |
|
assert_raises_rpc_error(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid) |
|
|
|
|
|
def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address): |
|
# cannot bump fee unless the tx has only inputs that we own. |
|
# here, the rbftx has a peer_node coin and then adds a rbf_node input |
|
# Note that this test depends upon the RPC code checking input ownership prior to change outputs |
|
# (since it can't use fundrawtransaction, it lacks a proper change output) |
|
utxos = [node.listunspent()[-1] for node in (rbf_node, peer_node)] |
|
inputs = [{ |
|
"txid": utxo["txid"], |
|
"vout": utxo["vout"], |
|
"address": utxo["address"], |
|
"sequence": BIP125_SEQUENCE_NUMBER |
|
} for utxo in utxos] |
|
output_val = sum(utxo["amount"] for utxo in utxos) - Decimal("0.001") |
|
rawtx = rbf_node.createrawtransaction(inputs, {dest_address: output_val}) |
|
signedtx = rbf_node.signrawtransaction(rawtx) |
|
signedtx = peer_node.signrawtransaction(signedtx["hex"]) |
|
rbfid = rbf_node.sendrawtransaction(signedtx["hex"]) |
|
assert_raises_rpc_error(-4, "Transaction contains inputs that don't belong to this wallet", |
|
rbf_node.bumpfee, rbfid) |
|
|
|
|
|
def test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address): |
|
# cannot bump fee if the transaction has a descendant |
|
# parent is send-to-self, so we don't have to check which output is change when creating the child tx |
|
parent_id = spend_one_input(rbf_node, rbf_node_address) |
|
tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000}) |
|
tx = rbf_node.signrawtransaction(tx) |
|
rbf_node.sendrawtransaction(tx["hex"]) |
|
assert_raises_rpc_error(-8, "Transaction has descendants in the wallet", rbf_node.bumpfee, parent_id) |
|
|
|
|
|
def test_small_output_fails(rbf_node, dest_address): |
|
# cannot bump fee with a too-small output |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
rbf_node.bumpfee(rbfid, {"totalFee": 50000}) |
|
|
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
assert_raises_rpc_error(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001}) |
|
|
|
|
|
def test_dust_to_fee(rbf_node, dest_address): |
|
# check that if output is reduced to dust, it will be converted to fee |
|
# the bumped tx sets fee=49,900, but it converts to 50,000 |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
fulltx = rbf_node.getrawtransaction(rbfid, 1) |
|
bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 49900}) |
|
full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1) |
|
assert_equal(bumped_tx["fee"], Decimal("0.00050000")) |
|
assert_equal(len(fulltx["vout"]), 2) |
|
assert_equal(len(full_bumped_tx["vout"]), 1) #change output is eliminated |
|
|
|
|
|
def test_settxfee(rbf_node, dest_address): |
|
# check that bumpfee reacts correctly to the use of settxfee (paytxfee) |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
requested_feerate = Decimal("0.00025000") |
|
rbf_node.settxfee(requested_feerate) |
|
bumped_tx = rbf_node.bumpfee(rbfid) |
|
actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["vsize"] |
|
# Assert that the difference between the requested feerate and the actual |
|
# feerate of the bumped transaction is small. |
|
assert_greater_than(Decimal("0.00001000"), abs(requested_feerate - actual_feerate)) |
|
rbf_node.settxfee(Decimal("0.00000000")) # unset paytxfee |
|
|
|
|
|
def test_rebumping(rbf_node, dest_address): |
|
# check that re-bumping the original tx fails, but bumping the bumper succeeds |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
bumped = rbf_node.bumpfee(rbfid, {"totalFee": 2000}) |
|
assert_raises_rpc_error(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000}) |
|
rbf_node.bumpfee(bumped["txid"], {"totalFee": 3000}) |
|
|
|
|
|
def test_rebumping_not_replaceable(rbf_node, dest_address): |
|
# check that re-bumping a non-replaceable bump tx fails |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False}) |
|
assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"], |
|
{"totalFee": 20000}) |
|
|
|
|
|
def test_unconfirmed_not_spendable(rbf_node, rbf_node_address): |
|
# check that unconfirmed outputs from bumped transactions are not spendable |
|
rbfid = spend_one_input(rbf_node, rbf_node_address) |
|
rbftx = rbf_node.gettransaction(rbfid)["hex"] |
|
assert rbfid in rbf_node.getrawmempool() |
|
bumpid = rbf_node.bumpfee(rbfid)["txid"] |
|
assert bumpid in rbf_node.getrawmempool() |
|
assert rbfid not in rbf_node.getrawmempool() |
|
|
|
# check that outputs from the bump transaction are not spendable |
|
# due to the replaces_txid check in CWallet::AvailableCoins |
|
assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == bumpid], []) |
|
|
|
# submit a block with the rbf tx to clear the bump tx out of the mempool, |
|
# then call abandon to make sure the wallet doesn't attempt to resubmit the |
|
# bump tx, then invalidate the block so the rbf tx will be put back in the |
|
# mempool. this makes it possible to check whether the rbf tx outputs are |
|
# spendable before the rbf tx is confirmed. |
|
block = submit_block_with_tx(rbf_node, rbftx) |
|
rbf_node.abandontransaction(bumpid) |
|
rbf_node.invalidateblock(block.hash) |
|
assert bumpid not in rbf_node.getrawmempool() |
|
assert rbfid in rbf_node.getrawmempool() |
|
|
|
# check that outputs from the rbf tx are not spendable before the |
|
# transaction is confirmed, due to the replaced_by_txid check in |
|
# CWallet::AvailableCoins |
|
assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == rbfid], []) |
|
|
|
# check that the main output from the rbf tx is spendable after confirmed |
|
rbf_node.generate(1) |
|
assert_equal( |
|
sum(1 for t in rbf_node.listunspent(minconf=0, include_unsafe=False) |
|
if t["txid"] == rbfid and t["address"] == rbf_node_address and t["spendable"]), 1) |
|
|
|
|
|
def test_bumpfee_metadata(rbf_node, dest_address): |
|
rbfid = rbf_node.sendtoaddress(dest_address, Decimal("0.00100000"), "comment value", "to value") |
|
bumped_tx = rbf_node.bumpfee(rbfid) |
|
bumped_wtx = rbf_node.gettransaction(bumped_tx["txid"]) |
|
assert_equal(bumped_wtx["comment"], "comment value") |
|
assert_equal(bumped_wtx["to"], "to value") |
|
|
|
|
|
def test_locked_wallet_fails(rbf_node, dest_address): |
|
rbfid = spend_one_input(rbf_node, dest_address) |
|
rbf_node.walletlock() |
|
assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first.", |
|
rbf_node.bumpfee, rbfid) |
|
|
|
|
|
def spend_one_input(node, dest_address): |
|
tx_input = dict( |
|
sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000"))) |
|
rawtx = node.createrawtransaction( |
|
[tx_input], {dest_address: Decimal("0.00050000"), |
|
node.getrawchangeaddress(): Decimal("0.00049000")}) |
|
signedtx = node.signrawtransaction(rawtx) |
|
txid = node.sendrawtransaction(signedtx["hex"]) |
|
return txid |
|
|
|
|
|
def submit_block_with_tx(node, tx): |
|
ctx = CTransaction() |
|
ctx.deserialize(io.BytesIO(hex_str_to_bytes(tx))) |
|
|
|
tip = node.getbestblockhash() |
|
height = node.getblockcount() + 1 |
|
block_time = node.getblockheader(tip)["mediantime"] + 1 |
|
block = blocktools.create_block(int(tip, 16), blocktools.create_coinbase(height), block_time) |
|
block.vtx.append(ctx) |
|
block.rehash() |
|
block.hashMerkleRoot = block.calc_merkle_root() |
|
blocktools.add_witness_commitment(block) |
|
block.solve() |
|
node.submitblock(bytes_to_hex_str(block.serialize(True))) |
|
return block |
|
|
|
|
|
if __name__ == "__main__": |
|
BumpFeeTest().main()
|
|
|