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645 lines
31 KiB
645 lines
31 KiB
#!/usr/bin/env python3
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# Copyright (c) 2016-2021 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test the bumpfee RPC.
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Verifies that the bumpfee RPC creates replacement transactions successfully when
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its preconditions are met, and returns appropriate errors in other cases.
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This module consists of around a dozen individual test cases implemented in the
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top-level functions named as test_<test_case_description>. The test functions
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can be disabled or reordered if needed for debugging. If new test cases are
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added in the future, they should try to follow the same convention and not
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make assumptions about execution order.
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"""
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from decimal import Decimal
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from test_framework.blocktools import (
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COINBASE_MATURITY,
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add_witness_commitment,
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create_block,
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create_coinbase,
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send_to_witness,
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)
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from test_framework.messages import (
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MAX_BIP125_RBF_SEQUENCE,
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)
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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assert_greater_than,
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assert_raises_rpc_error,
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)
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from test_framework.wallet import MiniWallet
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WALLET_PASSPHRASE = "test"
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WALLET_PASSPHRASE_TIMEOUT = 3600
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# Fee rates (sat/vB)
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INSUFFICIENT = 1
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ECONOMICAL = 50
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NORMAL = 100
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HIGH = 500
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TOO_HIGH = 100000
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class BumpFeeTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 2
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self.setup_clean_chain = True
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self.extra_args = [[
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"-walletrbf={}".format(i),
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"-mintxfee=0.00002",
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"-addresstype=bech32",
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"-whitelist=noban@127.0.0.1",
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] for i in range(self.num_nodes)]
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def clear_mempool(self):
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# Clear mempool between subtests. The subtests may only depend on chainstate (utxos)
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self.generate(self.nodes[1], 1)
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def run_test(self):
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# Encrypt wallet for test_locked_wallet_fails test
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self.nodes[1].encryptwallet(WALLET_PASSPHRASE)
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self.nodes[1].walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
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peer_node, rbf_node = self.nodes
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rbf_node_address = rbf_node.getnewaddress()
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# fund rbf node with 10 coins of 0.001 btc (100,000 satoshis)
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self.log.info("Mining blocks...")
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self.generate(peer_node, 110)
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for _ in range(25):
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peer_node.sendtoaddress(rbf_node_address, 0.001)
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self.sync_all()
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self.generate(peer_node, 1)
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assert_equal(rbf_node.getbalance(), Decimal("0.025"))
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self.log.info("Running tests")
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dest_address = peer_node.getnewaddress()
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for mode in ["default", "fee_rate"]:
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test_simple_bumpfee_succeeds(self, mode, rbf_node, peer_node, dest_address)
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self.test_invalid_parameters(rbf_node, peer_node, dest_address)
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test_segwit_bumpfee_succeeds(self, rbf_node, dest_address)
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test_nonrbf_bumpfee_fails(self, peer_node, dest_address)
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test_notmine_bumpfee(self, rbf_node, peer_node, dest_address)
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test_bumpfee_with_descendant_fails(self, rbf_node, rbf_node_address, dest_address)
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test_dust_to_fee(self, rbf_node, dest_address)
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test_watchonly_psbt(self, peer_node, rbf_node, dest_address)
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test_rebumping(self, rbf_node, dest_address)
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test_rebumping_not_replaceable(self, rbf_node, dest_address)
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test_bumpfee_already_spent(self, rbf_node, dest_address)
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test_unconfirmed_not_spendable(self, rbf_node, rbf_node_address)
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test_bumpfee_metadata(self, rbf_node, dest_address)
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test_locked_wallet_fails(self, rbf_node, dest_address)
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test_change_script_match(self, rbf_node, dest_address)
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test_settxfee(self, rbf_node, dest_address)
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test_maxtxfee_fails(self, rbf_node, dest_address)
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# These tests wipe out a number of utxos that are expected in other tests
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test_small_output_with_feerate_succeeds(self, rbf_node, dest_address)
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test_no_more_inputs_fails(self, rbf_node, dest_address)
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def test_invalid_parameters(self, rbf_node, peer_node, dest_address):
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self.log.info('Test invalid parameters')
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rbfid = spend_one_input(rbf_node, dest_address)
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self.sync_mempools((rbf_node, peer_node))
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assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool()
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for key in ["totalFee", "feeRate"]:
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assert_raises_rpc_error(-3, "Unexpected key {}".format(key), rbf_node.bumpfee, rbfid, {key: NORMAL})
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# Bumping to just above minrelay should fail to increase the total fee enough.
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assert_raises_rpc_error(-8, "Insufficient total fee 0.00000141", rbf_node.bumpfee, rbfid, {"fee_rate": INSUFFICIENT})
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self.log.info("Test invalid fee rate settings")
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assert_raises_rpc_error(-4, "Specified or calculated fee 0.141 is too high (cannot be higher than -maxtxfee 0.10",
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rbf_node.bumpfee, rbfid, {"fee_rate": TOO_HIGH})
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# Test fee_rate with zero values.
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msg = "Insufficient total fee 0.00"
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for zero_value in [0, 0.000, 0.00000000, "0", "0.000", "0.00000000"]:
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assert_raises_rpc_error(-8, msg, rbf_node.bumpfee, rbfid, {"fee_rate": zero_value})
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msg = "Invalid amount"
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# Test fee_rate values that don't pass fixed-point parsing checks.
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for invalid_value in ["", 0.000000001, 1e-09, 1.111111111, 1111111111111111, "31.999999999999999999999"]:
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assert_raises_rpc_error(-3, msg, rbf_node.bumpfee, rbfid, {"fee_rate": invalid_value})
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# Test fee_rate values that cannot be represented in sat/vB.
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for invalid_value in [0.0001, 0.00000001, 0.00099999, 31.99999999, "0.0001", "0.00000001", "0.00099999", "31.99999999"]:
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assert_raises_rpc_error(-3, msg, rbf_node.bumpfee, rbfid, {"fee_rate": invalid_value})
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# Test fee_rate out of range (negative number).
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assert_raises_rpc_error(-3, "Amount out of range", rbf_node.bumpfee, rbfid, {"fee_rate": -1})
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# Test type error.
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for value in [{"foo": "bar"}, True]:
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assert_raises_rpc_error(-3, "Amount is not a number or string", rbf_node.bumpfee, rbfid, {"fee_rate": value})
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self.log.info("Test explicit fee rate raises RPC error if both fee_rate and conf_target are passed")
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assert_raises_rpc_error(-8, "Cannot specify both conf_target and fee_rate. Please provide either a confirmation "
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"target in blocks for automatic fee estimation, or an explicit fee rate.",
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rbf_node.bumpfee, rbfid, {"conf_target": NORMAL, "fee_rate": NORMAL})
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self.log.info("Test explicit fee rate raises RPC error if both fee_rate and estimate_mode are passed")
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assert_raises_rpc_error(-8, "Cannot specify both estimate_mode and fee_rate",
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rbf_node.bumpfee, rbfid, {"estimate_mode": "economical", "fee_rate": NORMAL})
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self.log.info("Test invalid conf_target settings")
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assert_raises_rpc_error(-8, "confTarget and conf_target options should not both be set",
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rbf_node.bumpfee, rbfid, {"confTarget": 123, "conf_target": 456})
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self.log.info("Test invalid estimate_mode settings")
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for k, v in {"number": 42, "object": {"foo": "bar"}}.items():
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assert_raises_rpc_error(-3, "Expected type string for estimate_mode, got {}".format(k),
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rbf_node.bumpfee, rbfid, {"estimate_mode": v})
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for mode in ["foo", Decimal("3.1415"), "sat/B", "BTC/kB"]:
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assert_raises_rpc_error(-8, 'Invalid estimate_mode parameter, must be one of: "unset", "economical", "conservative"',
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rbf_node.bumpfee, rbfid, {"estimate_mode": mode})
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self.clear_mempool()
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def test_simple_bumpfee_succeeds(self, mode, rbf_node, peer_node, dest_address):
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self.log.info('Test simple bumpfee: {}'.format(mode))
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rbfid = spend_one_input(rbf_node, dest_address)
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rbftx = rbf_node.gettransaction(rbfid)
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self.sync_mempools((rbf_node, peer_node))
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assert rbfid in rbf_node.getrawmempool() and rbfid in peer_node.getrawmempool()
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if mode == "fee_rate":
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bumped_psbt = rbf_node.psbtbumpfee(rbfid, {"fee_rate": str(NORMAL)})
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bumped_tx = rbf_node.bumpfee(rbfid, {"fee_rate": NORMAL})
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else:
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bumped_psbt = rbf_node.psbtbumpfee(rbfid)
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bumped_tx = rbf_node.bumpfee(rbfid)
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assert_equal(bumped_tx["errors"], [])
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assert bumped_tx["fee"] > -rbftx["fee"]
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assert_equal(bumped_tx["origfee"], -rbftx["fee"])
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assert "psbt" not in bumped_tx
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assert_equal(bumped_psbt["errors"], [])
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assert bumped_psbt["fee"] > -rbftx["fee"]
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assert_equal(bumped_psbt["origfee"], -rbftx["fee"])
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assert "psbt" in bumped_psbt
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# check that bumped_tx propagates, original tx was evicted and has a wallet conflict
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self.sync_mempools((rbf_node, peer_node))
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assert bumped_tx["txid"] in rbf_node.getrawmempool()
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assert bumped_tx["txid"] in peer_node.getrawmempool()
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assert rbfid not in rbf_node.getrawmempool()
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assert rbfid not in peer_node.getrawmempool()
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oldwtx = rbf_node.gettransaction(rbfid)
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assert len(oldwtx["walletconflicts"]) > 0
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# check wallet transaction replaces and replaced_by values
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bumpedwtx = rbf_node.gettransaction(bumped_tx["txid"])
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assert_equal(oldwtx["replaced_by_txid"], bumped_tx["txid"])
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assert_equal(bumpedwtx["replaces_txid"], rbfid)
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self.clear_mempool()
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def test_segwit_bumpfee_succeeds(self, rbf_node, dest_address):
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self.log.info('Test that segwit-sourcing bumpfee works')
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# Create a transaction with segwit output, then create an RBF transaction
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# which spends it, and make sure bumpfee can be called on it.
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segwit_in = next(u for u in rbf_node.listunspent() if u["amount"] == Decimal("0.001"))
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segwit_out = rbf_node.getaddressinfo(rbf_node.getnewaddress(address_type='bech32'))
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segwitid = send_to_witness(
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use_p2wsh=False,
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node=rbf_node,
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utxo=segwit_in,
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pubkey=segwit_out["pubkey"],
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encode_p2sh=False,
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amount=Decimal("0.0009"),
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sign=True)
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rbfraw = rbf_node.createrawtransaction([{
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'txid': segwitid,
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'vout': 0,
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"sequence": MAX_BIP125_RBF_SEQUENCE
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}], {dest_address: Decimal("0.0005"),
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rbf_node.getrawchangeaddress(): Decimal("0.0003")})
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rbfsigned = rbf_node.signrawtransactionwithwallet(rbfraw)
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rbfid = rbf_node.sendrawtransaction(rbfsigned["hex"])
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assert rbfid in rbf_node.getrawmempool()
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bumped_tx = rbf_node.bumpfee(rbfid)
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assert bumped_tx["txid"] in rbf_node.getrawmempool()
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assert rbfid not in rbf_node.getrawmempool()
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self.clear_mempool()
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def test_nonrbf_bumpfee_fails(self, peer_node, dest_address):
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self.log.info('Test that we cannot replace a non RBF transaction')
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not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000"))
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assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)
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self.clear_mempool()
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def test_notmine_bumpfee(self, rbf_node, peer_node, dest_address):
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self.log.info('Test that it cannot bump fee if non-owned inputs are included')
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# here, the rbftx has a peer_node coin and then adds a rbf_node input
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# Note that this test depends upon the RPC code checking input ownership prior to change outputs
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# (since it can't use fundrawtransaction, it lacks a proper change output)
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fee = Decimal("0.001")
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utxos = [node.listunspent(query_options={'minimumAmount': fee})[-1] for node in (rbf_node, peer_node)]
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inputs = [{
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"txid": utxo["txid"],
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"vout": utxo["vout"],
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"address": utxo["address"],
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"sequence": MAX_BIP125_RBF_SEQUENCE
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} for utxo in utxos]
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output_val = sum(utxo["amount"] for utxo in utxos) - fee
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rawtx = rbf_node.createrawtransaction(inputs, {dest_address: output_val})
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signedtx = rbf_node.signrawtransactionwithwallet(rawtx)
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signedtx = peer_node.signrawtransactionwithwallet(signedtx["hex"])
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rbfid = rbf_node.sendrawtransaction(signedtx["hex"])
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entry = rbf_node.getmempoolentry(rbfid)
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old_fee = entry["fees"]["base"]
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old_feerate = int(old_fee / entry["vsize"] * Decimal(1e8))
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assert_raises_rpc_error(-4, "Transaction contains inputs that don't belong to this wallet",
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rbf_node.bumpfee, rbfid)
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def finish_psbtbumpfee(psbt):
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psbt = rbf_node.walletprocesspsbt(psbt)
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psbt = peer_node.walletprocesspsbt(psbt["psbt"])
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final = rbf_node.finalizepsbt(psbt["psbt"])
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res = rbf_node.testmempoolaccept([final["hex"]])
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assert res[0]["allowed"]
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assert_greater_than(res[0]["fees"]["base"], old_fee)
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self.log.info("Test that psbtbumpfee works for non-owned inputs")
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psbt = rbf_node.psbtbumpfee(txid=rbfid)
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finish_psbtbumpfee(psbt["psbt"])
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psbt = rbf_node.psbtbumpfee(txid=rbfid, options={"fee_rate": old_feerate + 10})
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finish_psbtbumpfee(psbt["psbt"])
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self.clear_mempool()
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def test_bumpfee_with_descendant_fails(self, rbf_node, rbf_node_address, dest_address):
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self.log.info('Test that fee cannot be bumped when it has descendant')
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# parent is send-to-self, so we don't have to check which output is change when creating the child tx
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parent_id = spend_one_input(rbf_node, rbf_node_address)
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tx = rbf_node.createrawtransaction([{"txid": parent_id, "vout": 0}], {dest_address: 0.00020000})
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tx = rbf_node.signrawtransactionwithwallet(tx)
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rbf_node.sendrawtransaction(tx["hex"])
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assert_raises_rpc_error(-8, "Transaction has descendants in the wallet", rbf_node.bumpfee, parent_id)
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# create tx with descendant in the mempool by using MiniWallet
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miniwallet = MiniWallet(rbf_node)
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parent_id = spend_one_input(rbf_node, miniwallet.get_address())
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tx = rbf_node.gettransaction(txid=parent_id, verbose=True)['decoded']
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miniwallet.scan_tx(tx)
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miniwallet.send_self_transfer(from_node=rbf_node)
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assert_raises_rpc_error(-8, "Transaction has descendants in the mempool", rbf_node.bumpfee, parent_id)
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self.clear_mempool()
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def test_small_output_with_feerate_succeeds(self, rbf_node, dest_address):
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self.log.info('Testing small output with feerate bump succeeds')
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# Make sure additional inputs exist
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self.generatetoaddress(rbf_node, COINBASE_MATURITY + 1, rbf_node.getnewaddress())
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rbfid = spend_one_input(rbf_node, dest_address)
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input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
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assert_equal(len(input_list), 1)
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original_txin = input_list[0]
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self.log.info('Keep bumping until transaction fee out-spends non-destination value')
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tx_fee = 0
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while True:
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input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
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new_item = list(input_list)[0]
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assert_equal(len(input_list), 1)
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assert_equal(original_txin["txid"], new_item["txid"])
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assert_equal(original_txin["vout"], new_item["vout"])
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rbfid_new_details = rbf_node.bumpfee(rbfid)
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rbfid_new = rbfid_new_details["txid"]
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raw_pool = rbf_node.getrawmempool()
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assert rbfid not in raw_pool
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assert rbfid_new in raw_pool
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rbfid = rbfid_new
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tx_fee = rbfid_new_details["fee"]
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# Total value from input not going to destination
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if tx_fee > Decimal('0.00050000'):
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break
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# input(s) have been added
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final_input_list = rbf_node.getrawtransaction(rbfid, 1)["vin"]
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assert_greater_than(len(final_input_list), 1)
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# Original input is in final set
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assert [txin for txin in final_input_list
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if txin["txid"] == original_txin["txid"]
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and txin["vout"] == original_txin["vout"]]
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self.generatetoaddress(rbf_node, 1, rbf_node.getnewaddress())
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assert_equal(rbf_node.gettransaction(rbfid)["confirmations"], 1)
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self.clear_mempool()
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def test_dust_to_fee(self, rbf_node, dest_address):
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self.log.info('Test that bumped output that is dust is dropped to fee')
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rbfid = spend_one_input(rbf_node, dest_address)
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fulltx = rbf_node.getrawtransaction(rbfid, 1)
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# The DER formatting used by Bitcoin to serialize ECDSA signatures means that signatures can have a
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# variable size of 70-72 bytes (or possibly even less), with most being 71 or 72 bytes. The signature
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# in the witness is divided by 4 for the vsize, so this variance can take the weight across a 4-byte
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# boundary. Thus expected transaction size (p2wpkh, 1 input, 2 outputs) is 140-141 vbytes, usually 141.
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if not 140 <= fulltx["vsize"] <= 141:
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raise AssertionError("Invalid tx vsize of {} (140-141 expected), full tx: {}".format(fulltx["vsize"], fulltx))
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# Bump with fee_rate of 350.25 sat/vB vbytes to create dust.
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# Expected fee is 141 vbytes * fee_rate 0.00350250 BTC / 1000 vbytes = 0.00049385 BTC.
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# or occasionally 140 vbytes * fee_rate 0.00350250 BTC / 1000 vbytes = 0.00049035 BTC.
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# Dust should be dropped to the fee, so actual bump fee is 0.00050000 BTC.
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bumped_tx = rbf_node.bumpfee(rbfid, {"fee_rate": 350.25})
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full_bumped_tx = rbf_node.getrawtransaction(bumped_tx["txid"], 1)
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assert_equal(bumped_tx["fee"], Decimal("0.00050000"))
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assert_equal(len(fulltx["vout"]), 2)
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assert_equal(len(full_bumped_tx["vout"]), 1) # change output is eliminated
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assert_equal(full_bumped_tx["vout"][0]['value'], Decimal("0.00050000"))
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self.clear_mempool()
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|
|
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def test_settxfee(self, rbf_node, dest_address):
|
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self.log.info('Test settxfee')
|
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assert_raises_rpc_error(-8, "txfee cannot be less than min relay tx fee", rbf_node.settxfee, Decimal('0.000005'))
|
|
assert_raises_rpc_error(-8, "txfee cannot be less than wallet min fee", rbf_node.settxfee, Decimal('0.000015'))
|
|
# 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))
|
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rbf_node.settxfee(Decimal("0.00000000")) # unset paytxfee
|
|
|
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# check that settxfee respects -maxtxfee
|
|
self.restart_node(1, ['-maxtxfee=0.000025'] + self.extra_args[1])
|
|
assert_raises_rpc_error(-8, "txfee cannot be more than wallet max tx fee", rbf_node.settxfee, Decimal('0.00003'))
|
|
self.restart_node(1, self.extra_args[1])
|
|
rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
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self.connect_nodes(1, 0)
|
|
self.clear_mempool()
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|
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|
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def test_maxtxfee_fails(self, rbf_node, dest_address):
|
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self.log.info('Test that bumpfee fails when it hits -maxtxfee')
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# size of bumped transaction (p2wpkh, 1 input, 2 outputs): 141 vbytes
|
|
# expected bump fee of 141 vbytes * 0.00200000 BTC / 1000 vbytes = 0.00002820 BTC
|
|
# which exceeds maxtxfee and is expected to raise
|
|
self.restart_node(1, ['-maxtxfee=0.000025'] + self.extra_args[1])
|
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rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
|
|
rbfid = spend_one_input(rbf_node, dest_address)
|
|
assert_raises_rpc_error(-4, "Unable to create transaction. Fee exceeds maximum configured by user (e.g. -maxtxfee, maxfeerate)", rbf_node.bumpfee, rbfid)
|
|
self.restart_node(1, self.extra_args[1])
|
|
rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
|
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self.connect_nodes(1, 0)
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_watchonly_psbt(self, peer_node, rbf_node, dest_address):
|
|
self.log.info('Test that PSBT is returned for bumpfee in watchonly wallets')
|
|
priv_rec_desc = "wpkh([00000001/84'/1'/0']tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/0/*)#rweraev0"
|
|
pub_rec_desc = rbf_node.getdescriptorinfo(priv_rec_desc)["descriptor"]
|
|
priv_change_desc = "wpkh([00000001/84'/1'/0']tprv8ZgxMBicQKsPd7Uf69XL1XwhmjHopUGep8GuEiJDZmbQz6o58LninorQAfcKZWARbtRtfnLcJ5MQ2AtHcQJCCRUcMRvmDUjyEmNUWwx8UbK/1/*)#j6uzqvuh"
|
|
pub_change_desc = rbf_node.getdescriptorinfo(priv_change_desc)["descriptor"]
|
|
# Create a wallet with private keys that can sign PSBTs
|
|
rbf_node.createwallet(wallet_name="signer", disable_private_keys=False, blank=True)
|
|
signer = rbf_node.get_wallet_rpc("signer")
|
|
assert signer.getwalletinfo()['private_keys_enabled']
|
|
reqs = [{
|
|
"desc": priv_rec_desc,
|
|
"timestamp": 0,
|
|
"range": [0,1],
|
|
"internal": False,
|
|
"keypool": False # Keys can only be imported to the keypool when private keys are disabled
|
|
},
|
|
{
|
|
"desc": priv_change_desc,
|
|
"timestamp": 0,
|
|
"range": [0, 0],
|
|
"internal": True,
|
|
"keypool": False
|
|
}]
|
|
if self.options.descriptors:
|
|
result = signer.importdescriptors(reqs)
|
|
else:
|
|
result = signer.importmulti(reqs)
|
|
assert_equal(result, [{'success': True}, {'success': True}])
|
|
|
|
# Create another wallet with just the public keys, which creates PSBTs
|
|
rbf_node.createwallet(wallet_name="watcher", disable_private_keys=True, blank=True)
|
|
watcher = rbf_node.get_wallet_rpc("watcher")
|
|
assert not watcher.getwalletinfo()['private_keys_enabled']
|
|
|
|
reqs = [{
|
|
"desc": pub_rec_desc,
|
|
"timestamp": 0,
|
|
"range": [0, 10],
|
|
"internal": False,
|
|
"keypool": True,
|
|
"watchonly": True,
|
|
"active": True,
|
|
}, {
|
|
"desc": pub_change_desc,
|
|
"timestamp": 0,
|
|
"range": [0, 10],
|
|
"internal": True,
|
|
"keypool": True,
|
|
"watchonly": True,
|
|
"active": True,
|
|
}]
|
|
if self.options.descriptors:
|
|
result = watcher.importdescriptors(reqs)
|
|
else:
|
|
result = watcher.importmulti(reqs)
|
|
assert_equal(result, [{'success': True}, {'success': True}])
|
|
|
|
funding_address1 = watcher.getnewaddress(address_type='bech32')
|
|
funding_address2 = watcher.getnewaddress(address_type='bech32')
|
|
peer_node.sendmany("", {funding_address1: 0.001, funding_address2: 0.001})
|
|
self.generate(peer_node, 1)
|
|
|
|
# Create single-input PSBT for transaction to be bumped
|
|
# Ensure the payment amount + change can be fully funded using one of the 0.001BTC inputs.
|
|
psbt = watcher.walletcreatefundedpsbt([watcher.listunspent()[0]], {dest_address: 0.0005}, 0,
|
|
{"fee_rate": 1, "add_inputs": False}, True)['psbt']
|
|
psbt_signed = signer.walletprocesspsbt(psbt=psbt, sign=True, sighashtype="ALL", bip32derivs=True)
|
|
psbt_final = watcher.finalizepsbt(psbt_signed["psbt"])
|
|
original_txid = watcher.sendrawtransaction(psbt_final["hex"])
|
|
assert_equal(len(watcher.decodepsbt(psbt)["tx"]["vin"]), 1)
|
|
|
|
# bumpfee can't be used on watchonly wallets
|
|
assert_raises_rpc_error(-4, "bumpfee is not available with wallets that have private keys disabled. Use psbtbumpfee instead.", watcher.bumpfee, original_txid)
|
|
|
|
# Bump fee, obnoxiously high to add additional watchonly input
|
|
bumped_psbt = watcher.psbtbumpfee(original_txid, {"fee_rate": HIGH})
|
|
assert_greater_than(len(watcher.decodepsbt(bumped_psbt['psbt'])["tx"]["vin"]), 1)
|
|
assert "txid" not in bumped_psbt
|
|
assert_equal(bumped_psbt["origfee"], -watcher.gettransaction(original_txid)["fee"])
|
|
assert not watcher.finalizepsbt(bumped_psbt["psbt"])["complete"]
|
|
|
|
# Sign bumped transaction
|
|
bumped_psbt_signed = signer.walletprocesspsbt(psbt=bumped_psbt["psbt"], sign=True, sighashtype="ALL", bip32derivs=True)
|
|
bumped_psbt_final = watcher.finalizepsbt(bumped_psbt_signed["psbt"])
|
|
assert bumped_psbt_final["complete"]
|
|
|
|
# Broadcast bumped transaction
|
|
bumped_txid = watcher.sendrawtransaction(bumped_psbt_final["hex"])
|
|
assert bumped_txid in rbf_node.getrawmempool()
|
|
assert original_txid not in rbf_node.getrawmempool()
|
|
|
|
rbf_node.unloadwallet("watcher")
|
|
rbf_node.unloadwallet("signer")
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_rebumping(self, rbf_node, dest_address):
|
|
self.log.info('Test that re-bumping the original tx fails, but bumping successor works')
|
|
rbfid = spend_one_input(rbf_node, dest_address)
|
|
bumped = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL})
|
|
assert_raises_rpc_error(-4, f"Cannot bump transaction {rbfid} which was already bumped by transaction {bumped['txid']}",
|
|
rbf_node.bumpfee, rbfid, {"fee_rate": NORMAL})
|
|
rbf_node.bumpfee(bumped["txid"], {"fee_rate": NORMAL})
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_rebumping_not_replaceable(self, rbf_node, dest_address):
|
|
self.log.info('Test that re-bumping non-replaceable fails')
|
|
rbfid = spend_one_input(rbf_node, dest_address)
|
|
bumped = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL, "replaceable": False})
|
|
assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
|
|
{"fee_rate": NORMAL})
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_bumpfee_already_spent(self, rbf_node, dest_address):
|
|
self.log.info('Test that bumping tx with already spent coin fails')
|
|
txid = spend_one_input(rbf_node, dest_address)
|
|
self.generate(rbf_node, 1) # spend coin simply by mining block with tx
|
|
spent_input = rbf_node.gettransaction(txid=txid, verbose=True)['decoded']['vin'][0]
|
|
assert_raises_rpc_error(-1, f"{spent_input['txid']}:{spent_input['vout']} is already spent",
|
|
rbf_node.bumpfee, txid, {"fee_rate": NORMAL})
|
|
|
|
|
|
def test_unconfirmed_not_spendable(self, rbf_node, rbf_node_address):
|
|
self.log.info('Test that unconfirmed outputs from bumped txns 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 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)
|
|
# Can not abandon conflicted tx
|
|
assert_raises_rpc_error(-5, 'Transaction not eligible for abandonment', lambda: rbf_node.abandontransaction(txid=bumpid))
|
|
rbf_node.invalidateblock(block.hash)
|
|
# Call abandon to make sure the wallet doesn't attempt to resubmit
|
|
# the bump tx and hope the wallet does not rebroadcast before we call.
|
|
rbf_node.abandontransaction(bumpid)
|
|
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
|
|
self.generate(rbf_node, 1, sync_fun=self.no_op)
|
|
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)
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_bumpfee_metadata(self, rbf_node, dest_address):
|
|
self.log.info('Test that bumped txn metadata persists to new txn record')
|
|
assert(rbf_node.getbalance() < 49)
|
|
self.generatetoaddress(rbf_node, 101, rbf_node.getnewaddress())
|
|
rbfid = rbf_node.sendtoaddress(dest_address, 49, "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")
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_locked_wallet_fails(self, rbf_node, dest_address):
|
|
self.log.info('Test that locked wallet cannot bump txn')
|
|
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)
|
|
rbf_node.walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
|
|
self.clear_mempool()
|
|
|
|
|
|
def test_change_script_match(self, rbf_node, dest_address):
|
|
self.log.info('Test that the same change addresses is used for the replacement transaction when possible')
|
|
|
|
def get_change_address(tx):
|
|
tx_details = rbf_node.getrawtransaction(tx, 1)
|
|
txout_addresses = [txout['scriptPubKey']['address'] for txout in tx_details["vout"]]
|
|
return [address for address in txout_addresses if rbf_node.getaddressinfo(address)["ischange"]]
|
|
|
|
# Check that there is only one change output
|
|
rbfid = spend_one_input(rbf_node, dest_address)
|
|
change_addresses = get_change_address(rbfid)
|
|
assert_equal(len(change_addresses), 1)
|
|
|
|
# Now find that address in each subsequent tx, and no other change
|
|
bumped_total_tx = rbf_node.bumpfee(rbfid, {"fee_rate": ECONOMICAL})
|
|
assert_equal(change_addresses, get_change_address(bumped_total_tx['txid']))
|
|
bumped_rate_tx = rbf_node.bumpfee(bumped_total_tx["txid"])
|
|
assert_equal(change_addresses, get_change_address(bumped_rate_tx['txid']))
|
|
self.clear_mempool()
|
|
|
|
|
|
def spend_one_input(node, dest_address, change_size=Decimal("0.00049000")):
|
|
tx_input = dict(
|
|
sequence=MAX_BIP125_RBF_SEQUENCE, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000")))
|
|
destinations = {dest_address: Decimal("0.00050000")}
|
|
if change_size > 0:
|
|
destinations[node.getrawchangeaddress()] = change_size
|
|
rawtx = node.createrawtransaction([tx_input], destinations)
|
|
signedtx = node.signrawtransactionwithwallet(rawtx)
|
|
txid = node.sendrawtransaction(signedtx["hex"])
|
|
return txid
|
|
|
|
|
|
def submit_block_with_tx(node, tx):
|
|
tip = node.getbestblockhash()
|
|
height = node.getblockcount() + 1
|
|
block_time = node.getblockheader(tip)["mediantime"] + 1
|
|
block = create_block(int(tip, 16), create_coinbase(height), block_time, txlist=[tx])
|
|
add_witness_commitment(block)
|
|
block.solve()
|
|
node.submitblock(block.serialize().hex())
|
|
return block
|
|
|
|
|
|
def test_no_more_inputs_fails(self, rbf_node, dest_address):
|
|
self.log.info('Test that bumpfee fails when there are no available confirmed outputs')
|
|
# feerate rbf requires confirmed outputs when change output doesn't exist or is insufficient
|
|
self.generatetoaddress(rbf_node, 1, dest_address)
|
|
# spend all funds, no change output
|
|
rbfid = rbf_node.sendall(recipients=[rbf_node.getnewaddress()])['txid']
|
|
assert_raises_rpc_error(-4, "Unable to create transaction. Insufficient funds", rbf_node.bumpfee, rbfid)
|
|
self.clear_mempool()
|
|
|
|
|
|
if __name__ == "__main__":
|
|
BumpFeeTest().main()
|