2016-12-09 10:45:27 -08:00
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#!/usr/bin/env python3
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2018-01-02 09:12:05 -08:00
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# Copyright (c) 2016-2017 The Bitcoin Core developers
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2016-12-09 10:45:27 -08:00
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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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2017-03-20 14:17:27 -07:00
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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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2016-12-09 10:45:27 -08:00
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2017-09-14 08:41:30 -07:00
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from test_framework.blocktools import send_to_witness
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework import blocktools
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from test_framework.mininode import CTransaction
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from test_framework.util import *
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import io
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# Sequence number that is BIP 125 opt-in and BIP 68-compliant
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BIP125_SEQUENCE_NUMBER = 0xfffffffd
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WALLET_PASSPHRASE = "test"
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WALLET_PASSPHRASE_TIMEOUT = 3600
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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 = [["-prematurewitness", "-walletprematurewitness", "-deprecatedrpc=addwitnessaddress", "-walletrbf={}".format(i)]
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for i in range(self.num_nodes)]
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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].node_encrypt_wallet(WALLET_PASSPHRASE)
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self.start_node(1)
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self.nodes[1].walletpassphrase(WALLET_PASSPHRASE, WALLET_PASSPHRASE_TIMEOUT)
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connect_nodes_bi(self.nodes, 0, 1)
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self.sync_all()
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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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peer_node.generate(110)
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self.sync_all()
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for i 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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peer_node.generate(1)
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self.sync_all()
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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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test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address)
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test_segwit_bumpfee_succeeds(rbf_node, dest_address)
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test_nonrbf_bumpfee_fails(peer_node, dest_address)
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test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address)
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test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address)
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test_small_output_fails(rbf_node, dest_address)
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test_dust_to_fee(rbf_node, dest_address)
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test_settxfee(rbf_node, dest_address)
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test_rebumping(rbf_node, dest_address)
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test_rebumping_not_replaceable(rbf_node, dest_address)
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test_unconfirmed_not_spendable(rbf_node, rbf_node_address)
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test_bumpfee_metadata(rbf_node, dest_address)
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test_locked_wallet_fails(rbf_node, dest_address)
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self.log.info("Success")
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def test_simple_bumpfee_succeeds(rbf_node, peer_node, dest_address):
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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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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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bumped_tx = rbf_node.bumpfee(rbfid)
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assert_equal(bumped_tx["errors"], [])
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assert bumped_tx["fee"] - abs(rbftx["fee"]) > 0
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# check that bumped_tx propagates, original tx was evicted and has a wallet conflict
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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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def test_segwit_bumpfee_succeeds(rbf_node, dest_address):
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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())
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rbf_node.addwitnessaddress(segwit_out["address"])
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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": BIP125_SEQUENCE_NUMBER
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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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def test_nonrbf_bumpfee_fails(peer_node, dest_address):
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# cannot replace a non RBF transaction (from node which did not enable RBF)
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not_rbfid = peer_node.sendtoaddress(dest_address, Decimal("0.00090000"))
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assert_raises_rpc_error(-4, "not BIP 125 replaceable", peer_node.bumpfee, not_rbfid)
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def test_notmine_bumpfee_fails(rbf_node, peer_node, dest_address):
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# cannot bump fee unless the tx has only inputs that we own.
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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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utxos = [node.listunspent()[-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": BIP125_SEQUENCE_NUMBER
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} for utxo in utxos]
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output_val = sum(utxo["amount"] for utxo in utxos) - Decimal("0.001")
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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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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 test_bumpfee_with_descendant_fails(rbf_node, rbf_node_address, dest_address):
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# cannot bump fee if the transaction has a 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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def test_small_output_fails(rbf_node, dest_address):
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# cannot bump fee with a too-small output
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rbfid = spend_one_input(rbf_node, dest_address)
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rbf_node.bumpfee(rbfid, {"totalFee": 50000})
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rbfid = spend_one_input(rbf_node, dest_address)
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assert_raises_rpc_error(-4, "Change output is too small", rbf_node.bumpfee, rbfid, {"totalFee": 50001})
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def test_dust_to_fee(rbf_node, dest_address):
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# check that if output is reduced to dust, it will be converted to fee
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# the bumped tx sets fee=49,900, but it converts to 50,000
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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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bumped_tx = rbf_node.bumpfee(rbfid, {"totalFee": 49900})
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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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def test_settxfee(rbf_node, dest_address):
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# check that bumpfee reacts correctly to the use of settxfee (paytxfee)
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rbfid = spend_one_input(rbf_node, dest_address)
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requested_feerate = Decimal("0.00025000")
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rbf_node.settxfee(requested_feerate)
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bumped_tx = rbf_node.bumpfee(rbfid)
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actual_feerate = bumped_tx["fee"] * 1000 / rbf_node.getrawtransaction(bumped_tx["txid"], True)["vsize"]
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# Assert that the difference between the requested feerate and the actual
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# feerate of the bumped transaction is small.
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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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def test_rebumping(rbf_node, dest_address):
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# check that re-bumping the original tx fails, but bumping the bumper succeeds
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rbfid = spend_one_input(rbf_node, dest_address)
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bumped = rbf_node.bumpfee(rbfid, {"totalFee": 2000})
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assert_raises_rpc_error(-4, "already bumped", rbf_node.bumpfee, rbfid, {"totalFee": 3000})
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rbf_node.bumpfee(bumped["txid"], {"totalFee": 3000})
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def test_rebumping_not_replaceable(rbf_node, dest_address):
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# check that re-bumping a non-replaceable bump tx fails
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rbfid = spend_one_input(rbf_node, dest_address)
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bumped = rbf_node.bumpfee(rbfid, {"totalFee": 10000, "replaceable": False})
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assert_raises_rpc_error(-4, "Transaction is not BIP 125 replaceable", rbf_node.bumpfee, bumped["txid"],
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{"totalFee": 20000})
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def test_unconfirmed_not_spendable(rbf_node, rbf_node_address):
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# check that unconfirmed outputs from bumped transactions are not spendable
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rbfid = spend_one_input(rbf_node, rbf_node_address)
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rbftx = rbf_node.gettransaction(rbfid)["hex"]
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assert rbfid in rbf_node.getrawmempool()
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bumpid = rbf_node.bumpfee(rbfid)["txid"]
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assert bumpid in rbf_node.getrawmempool()
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assert rbfid not in rbf_node.getrawmempool()
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# check that outputs from the bump transaction are not spendable
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# due to the replaces_txid check in CWallet::AvailableCoins
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assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == bumpid], [])
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# submit a block with the rbf tx to clear the bump tx out of the mempool,
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# then invalidate the block so the rbf tx will be put back in the mempool.
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# This makes it possible to check whether the rbf tx outputs are
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# spendable before the rbf tx is confirmed.
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block = submit_block_with_tx(rbf_node, rbftx)
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# Can not abandon conflicted tx
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assert_raises_rpc_error(-5, 'Transaction not eligible for abandonment', lambda: rbf_node.abandontransaction(txid=bumpid))
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rbf_node.invalidateblock(block.hash)
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# Call abandon to make sure the wallet doesn't attempt to resubmit
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# the bump tx and hope the wallet does not rebroadcast before we call.
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rbf_node.abandontransaction(bumpid)
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assert bumpid not in rbf_node.getrawmempool()
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assert rbfid in rbf_node.getrawmempool()
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# check that outputs from the rbf tx are not spendable before the
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# transaction is confirmed, due to the replaced_by_txid check in
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# CWallet::AvailableCoins
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assert_equal([t for t in rbf_node.listunspent(minconf=0, include_unsafe=False) if t["txid"] == rbfid], [])
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# check that the main output from the rbf tx is spendable after confirmed
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rbf_node.generate(1)
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assert_equal(
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sum(1 for t in rbf_node.listunspent(minconf=0, include_unsafe=False)
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if t["txid"] == rbfid and t["address"] == rbf_node_address and t["spendable"]), 1)
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2017-02-02 14:34:22 -08:00
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def test_bumpfee_metadata(rbf_node, dest_address):
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2017-02-06 15:27:24 -08:00
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rbfid = rbf_node.sendtoaddress(dest_address, Decimal("0.00100000"), "comment value", "to value")
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2017-02-02 14:34:22 -08:00
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bumped_tx = rbf_node.bumpfee(rbfid)
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bumped_wtx = rbf_node.gettransaction(bumped_tx["txid"])
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assert_equal(bumped_wtx["comment"], "comment value")
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assert_equal(bumped_wtx["to"], "to value")
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|
2016-12-09 10:45:27 -08:00
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def test_locked_wallet_fails(rbf_node, dest_address):
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2017-02-06 15:27:24 -08:00
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rbfid = spend_one_input(rbf_node, dest_address)
|
2016-12-09 10:45:27 -08:00
|
|
|
rbf_node.walletlock()
|
2017-07-12 07:33:46 -07:00
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assert_raises_rpc_error(-13, "Please enter the wallet passphrase with walletpassphrase first.",
|
2016-12-09 10:45:27 -08:00
|
|
|
rbf_node.bumpfee, rbfid)
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|
2017-02-06 15:27:24 -08:00
|
|
|
def spend_one_input(node, dest_address):
|
2017-03-16 07:49:42 -07:00
|
|
|
tx_input = dict(
|
2017-02-06 15:27:24 -08:00
|
|
|
sequence=BIP125_SEQUENCE_NUMBER, **next(u for u in node.listunspent() if u["amount"] == Decimal("0.00100000")))
|
|
|
|
rawtx = node.createrawtransaction(
|
2017-03-16 07:49:42 -07:00
|
|
|
[tx_input], {dest_address: Decimal("0.00050000"),
|
|
|
|
node.getrawchangeaddress(): Decimal("0.00049000")})
|
2017-09-05 16:49:18 -07:00
|
|
|
signedtx = node.signrawtransactionwithwallet(rawtx)
|
2016-12-09 10:45:27 -08:00
|
|
|
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()
|
2017-11-30 16:49:11 -08:00
|
|
|
blocktools.add_witness_commitment(block)
|
2016-12-09 10:45:27 -08:00
|
|
|
block.solve()
|
2017-02-07 11:27:57 -08:00
|
|
|
node.submitblock(bytes_to_hex_str(block.serialize(True)))
|
2016-12-09 10:45:27 -08:00
|
|
|
return block
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
|
|
|
BumpFeeTest().main()
|