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dogecoin/test/functional/rpc_fundrawtransaction.py
Sebastian Falbesoner dac7a111bd refactor: test: use _ variable for unused loop counters 
substitutes "for x in range(N):" by "for _ in range(N):"
indicates to the reader that a block is just repeated N times, and
that the loop counter is not used in the body
2020-08-06 18:39:33 +02:00

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#!/usr/bin/env python3
# Copyright (c) 2014-2020 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 fundrawtransaction RPC."""
from decimal import Decimal
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import (
assert_equal,
assert_fee_amount,
assert_greater_than,
assert_greater_than_or_equal,
assert_raises_rpc_error,
connect_nodes,
count_bytes,
find_vout_for_address,
)
def get_unspent(listunspent, amount):
for utx in listunspent:
if utx['amount'] == amount:
return utx
raise AssertionError('Could not find unspent with amount={}'.format(amount))
class RawTransactionsTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 4
self.setup_clean_chain = True
# This test isn't testing tx relay. Set whitelist on the peers for
# instant tx relay.
self.extra_args = [['-whitelist=noban@127.0.0.1']] * self.num_nodes
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def setup_network(self):
self.setup_nodes()
connect_nodes(self.nodes[0], 1)
connect_nodes(self.nodes[1], 2)
connect_nodes(self.nodes[0], 2)
connect_nodes(self.nodes[0], 3)
def run_test(self):
self.log.info("Connect nodes, set fees, generate blocks, and sync")
self.min_relay_tx_fee = self.nodes[0].getnetworkinfo()['relayfee']
# This test is not meant to test fee estimation and we'd like
# to be sure all txs are sent at a consistent desired feerate
for node in self.nodes:
node.settxfee(self.min_relay_tx_fee)
# if the fee's positive delta is higher than this value tests will fail,
# neg. delta always fail the tests.
# The size of the signature of every input may be at most 2 bytes larger
# than a minimum sized signature.
# = 2 bytes * minRelayTxFeePerByte
self.fee_tolerance = 2 * self.min_relay_tx_fee / 1000
self.nodes[2].generate(1)
self.sync_all()
self.nodes[0].generate(121)
self.sync_all()
self.test_change_position()
self.test_simple()
self.test_simple_two_coins()
self.test_simple_two_outputs()
self.test_change()
self.test_no_change()
self.test_invalid_option()
self.test_invalid_change_address()
self.test_valid_change_address()
self.test_change_type()
self.test_coin_selection()
self.test_two_vin()
self.test_two_vin_two_vout()
self.test_invalid_input()
self.test_fee_p2pkh()
self.test_fee_p2pkh_multi_out()
self.test_fee_p2sh()
self.test_fee_4of5()
self.test_spend_2of2()
self.test_locked_wallet()
self.test_many_inputs_fee()
self.test_many_inputs_send()
self.test_op_return()
self.test_watchonly()
self.test_all_watched_funds()
self.test_option_feerate()
self.test_address_reuse()
self.test_option_subtract_fee_from_outputs()
self.test_subtract_fee_with_presets()
def test_change_position(self):
"""Ensure setting changePosition in fundraw with an exact match is handled properly."""
self.log.info("Test fundrawtxn changePosition option")
rawmatch = self.nodes[2].createrawtransaction([], {self.nodes[2].getnewaddress():50})
rawmatch = self.nodes[2].fundrawtransaction(rawmatch, {"changePosition":1, "subtractFeeFromOutputs":[0]})
assert_equal(rawmatch["changepos"], -1)
watchonly_address = self.nodes[0].getnewaddress()
watchonly_pubkey = self.nodes[0].getaddressinfo(watchonly_address)["pubkey"]
self.watchonly_amount = Decimal(200)
self.nodes[3].importpubkey(watchonly_pubkey, "", True)
self.watchonly_txid = self.nodes[0].sendtoaddress(watchonly_address, self.watchonly_amount)
# Lock UTXO so nodes[0] doesn't accidentally spend it
self.watchonly_vout = find_vout_for_address(self.nodes[0], self.watchonly_txid, watchonly_address)
self.nodes[0].lockunspent(False, [{"txid": self.watchonly_txid, "vout": self.watchonly_vout}])
self.nodes[0].sendtoaddress(self.nodes[3].getnewaddress(), self.watchonly_amount / 10)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.5)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 1.0)
self.nodes[0].sendtoaddress(self.nodes[2].getnewaddress(), 5.0)
self.nodes[0].generate(1)
self.sync_all()
def test_simple(self):
self.log.info("Test fundrawtxn")
inputs = [ ]
outputs = { self.nodes[0].getnewaddress() : 1.0 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert len(dec_tx['vin']) > 0 #test that we have enough inputs
def test_simple_two_coins(self):
self.log.info("Test fundrawtxn with 2 coins")
inputs = [ ]
outputs = { self.nodes[0].getnewaddress() : 2.2 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert len(dec_tx['vin']) > 0 #test if we have enough inputs
assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
def test_simple_two_outputs(self):
self.log.info("Test fundrawtxn with 2 outputs")
inputs = [ ]
outputs = { self.nodes[0].getnewaddress() : 2.6, self.nodes[1].getnewaddress() : 2.5 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
for out in dec_tx['vout']:
totalOut += out['value']
assert len(dec_tx['vin']) > 0
assert_equal(dec_tx['vin'][0]['scriptSig']['hex'], '')
def test_change(self):
self.log.info("Test fundrawtxn with a vin > required amount")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
outputs = { self.nodes[0].getnewaddress() : 1.0 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
self.test_no_change_fee = fee # Use the same fee for the next tx
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
for out in dec_tx['vout']:
totalOut += out['value']
assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
def test_no_change(self):
self.log.info("Test fundrawtxn not having a change output")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
outputs = {self.nodes[0].getnewaddress(): Decimal(5.0) - self.test_no_change_fee - self.fee_tolerance}
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
fee = rawtxfund['fee']
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
for out in dec_tx['vout']:
totalOut += out['value']
assert_equal(rawtxfund['changepos'], -1)
assert_equal(fee + totalOut, utx['amount']) #compare vin total and totalout+fee
def test_invalid_option(self):
self.log.info("Test fundrawtxn with an invalid option")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
assert_raises_rpc_error(-3, "Unexpected key foo", self.nodes[2].fundrawtransaction, rawtx, {'foo':'bar'})
# reserveChangeKey was deprecated and is now removed
assert_raises_rpc_error(-3, "Unexpected key reserveChangeKey", lambda: self.nodes[2].fundrawtransaction(hexstring=rawtx, options={'reserveChangeKey': True}))
def test_invalid_change_address(self):
self.log.info("Test fundrawtxn with an invalid change address")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
assert_raises_rpc_error(-5, "changeAddress must be a valid bitcoin address", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':'foobar'})
def test_valid_change_address(self):
self.log.info("Test fundrawtxn with a provided change address")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
change = self.nodes[2].getnewaddress()
assert_raises_rpc_error(-8, "changePosition out of bounds", self.nodes[2].fundrawtransaction, rawtx, {'changeAddress':change, 'changePosition':2})
rawtxfund = self.nodes[2].fundrawtransaction(rawtx, {'changeAddress': change, 'changePosition': 0})
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
out = dec_tx['vout'][0]
assert_equal(change, out['scriptPubKey']['addresses'][0])
def test_change_type(self):
self.log.info("Test fundrawtxn with a provided change type")
utx = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']} ]
outputs = { self.nodes[0].getnewaddress() : Decimal(4.0) }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
assert_raises_rpc_error(-1, "JSON value is not a string as expected", self.nodes[2].fundrawtransaction, rawtx, {'change_type': None})
assert_raises_rpc_error(-5, "Unknown change type ''", self.nodes[2].fundrawtransaction, rawtx, {'change_type': ''})
rawtx = self.nodes[2].fundrawtransaction(rawtx, {'change_type': 'bech32'})
dec_tx = self.nodes[2].decoderawtransaction(rawtx['hex'])
assert_equal('witness_v0_keyhash', dec_tx['vout'][rawtx['changepos']]['scriptPubKey']['type'])
def test_coin_selection(self):
self.log.info("Test fundrawtxn with a vin < required amount")
utx = get_unspent(self.nodes[2].listunspent(), 1)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']}]
outputs = { self.nodes[0].getnewaddress() : 1.0 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
# 4-byte version + 1-byte vin count + 36-byte prevout then script_len
rawtx = rawtx[:82] + "0100" + rawtx[84:]
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
assert_equal("00", dec_tx['vin'][0]['scriptSig']['hex'])
# Should fail without add_inputs:
assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx, {"add_inputs": False})
# add_inputs is enabled by default
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
for i, out in enumerate(dec_tx['vout']):
totalOut += out['value']
if out['scriptPubKey']['addresses'][0] in outputs:
matchingOuts+=1
else:
assert_equal(i, rawtxfund['changepos'])
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
assert_equal("00", dec_tx['vin'][0]['scriptSig']['hex'])
assert_equal(matchingOuts, 1)
assert_equal(len(dec_tx['vout']), 2)
def test_two_vin(self):
self.log.info("Test fundrawtxn with 2 vins")
utx = get_unspent(self.nodes[2].listunspent(), 1)
utx2 = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']},{'txid' : utx2['txid'], 'vout' : utx2['vout']} ]
outputs = { self.nodes[0].getnewaddress() : 6.0 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
# Should fail without add_inputs:
assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx, {"add_inputs": False})
rawtxfund = self.nodes[2].fundrawtransaction(rawtx, {"add_inputs": True})
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
for out in dec_tx['vout']:
totalOut += out['value']
if out['scriptPubKey']['addresses'][0] in outputs:
matchingOuts+=1
assert_equal(matchingOuts, 1)
assert_equal(len(dec_tx['vout']), 2)
matchingIns = 0
for vinOut in dec_tx['vin']:
for vinIn in inputs:
if vinIn['txid'] == vinOut['txid']:
matchingIns+=1
assert_equal(matchingIns, 2) #we now must see two vins identical to vins given as params
def test_two_vin_two_vout(self):
self.log.info("Test fundrawtxn with 2 vins and 2 vouts")
utx = get_unspent(self.nodes[2].listunspent(), 1)
utx2 = get_unspent(self.nodes[2].listunspent(), 5)
inputs = [ {'txid' : utx['txid'], 'vout' : utx['vout']},{'txid' : utx2['txid'], 'vout' : utx2['vout']} ]
outputs = { self.nodes[0].getnewaddress() : 6.0, self.nodes[0].getnewaddress() : 1.0 }
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(utx['txid'], dec_tx['vin'][0]['txid'])
# Should fail without add_inputs:
assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx, {"add_inputs": False})
rawtxfund = self.nodes[2].fundrawtransaction(rawtx, {"add_inputs": True})
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
totalOut = 0
matchingOuts = 0
for out in dec_tx['vout']:
totalOut += out['value']
if out['scriptPubKey']['addresses'][0] in outputs:
matchingOuts+=1
assert_equal(matchingOuts, 2)
assert_equal(len(dec_tx['vout']), 3)
def test_invalid_input(self):
self.log.info("Test fundrawtxn with an invalid vin")
inputs = [ {'txid' : "1c7f966dab21119bac53213a2bc7532bff1fa844c124fd750a7d0b1332440bd1", 'vout' : 0} ] #invalid vin!
outputs = { self.nodes[0].getnewaddress() : 1.0}
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
assert_raises_rpc_error(-4, "Insufficient funds", self.nodes[2].fundrawtransaction, rawtx)
def test_fee_p2pkh(self):
"""Compare fee of a standard pubkeyhash transaction."""
self.log.info("Test fundrawtxn p2pkh fee")
inputs = []
outputs = {self.nodes[1].getnewaddress():1.1}
rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[0].fundrawtransaction(rawtx)
# Create same transaction over sendtoaddress.
txId = self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 1.1)
signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
# Compare fee.
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
def test_fee_p2pkh_multi_out(self):
"""Compare fee of a standard pubkeyhash transaction with multiple outputs."""
self.log.info("Test fundrawtxn p2pkh fee with multiple outputs")
inputs = []
outputs = {
self.nodes[1].getnewaddress():1.1,
self.nodes[1].getnewaddress():1.2,
self.nodes[1].getnewaddress():0.1,
self.nodes[1].getnewaddress():1.3,
self.nodes[1].getnewaddress():0.2,
self.nodes[1].getnewaddress():0.3,
}
rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[0].fundrawtransaction(rawtx)
# Create same transaction over sendtoaddress.
txId = self.nodes[0].sendmany("", outputs)
signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
# Compare fee.
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
def test_fee_p2sh(self):
"""Compare fee of a 2-of-2 multisig p2sh transaction."""
# Create 2-of-2 addr.
addr1 = self.nodes[1].getnewaddress()
addr2 = self.nodes[1].getnewaddress()
addr1Obj = self.nodes[1].getaddressinfo(addr1)
addr2Obj = self.nodes[1].getaddressinfo(addr2)
mSigObj = self.nodes[1].addmultisigaddress(2, [addr1Obj['pubkey'], addr2Obj['pubkey']])['address']
inputs = []
outputs = {mSigObj:1.1}
rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[0].fundrawtransaction(rawtx)
# Create same transaction over sendtoaddress.
txId = self.nodes[0].sendtoaddress(mSigObj, 1.1)
signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
# Compare fee.
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
def test_fee_4of5(self):
"""Compare fee of a standard pubkeyhash transaction."""
self.log.info("Test fundrawtxn fee with 4-of-5 addresses")
# Create 4-of-5 addr.
addr1 = self.nodes[1].getnewaddress()
addr2 = self.nodes[1].getnewaddress()
addr3 = self.nodes[1].getnewaddress()
addr4 = self.nodes[1].getnewaddress()
addr5 = self.nodes[1].getnewaddress()
addr1Obj = self.nodes[1].getaddressinfo(addr1)
addr2Obj = self.nodes[1].getaddressinfo(addr2)
addr3Obj = self.nodes[1].getaddressinfo(addr3)
addr4Obj = self.nodes[1].getaddressinfo(addr4)
addr5Obj = self.nodes[1].getaddressinfo(addr5)
mSigObj = self.nodes[1].addmultisigaddress(
4,
[
addr1Obj['pubkey'],
addr2Obj['pubkey'],
addr3Obj['pubkey'],
addr4Obj['pubkey'],
addr5Obj['pubkey'],
]
)['address']
inputs = []
outputs = {mSigObj:1.1}
rawtx = self.nodes[0].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[0].fundrawtransaction(rawtx)
# Create same transaction over sendtoaddress.
txId = self.nodes[0].sendtoaddress(mSigObj, 1.1)
signedFee = self.nodes[0].getrawmempool(True)[txId]['fee']
# Compare fee.
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance
def test_spend_2of2(self):
"""Spend a 2-of-2 multisig transaction over fundraw."""
self.log.info("Test fundrawtxn spending 2-of-2 multisig")
# Create 2-of-2 addr.
addr1 = self.nodes[2].getnewaddress()
addr2 = self.nodes[2].getnewaddress()
addr1Obj = self.nodes[2].getaddressinfo(addr1)
addr2Obj = self.nodes[2].getaddressinfo(addr2)
mSigObj = self.nodes[2].addmultisigaddress(
2,
[
addr1Obj['pubkey'],
addr2Obj['pubkey'],
]
)['address']
# Send 1.2 BTC to msig addr.
self.nodes[0].sendtoaddress(mSigObj, 1.2)
self.nodes[0].generate(1)
self.sync_all()
oldBalance = self.nodes[1].getbalance()
inputs = []
outputs = {self.nodes[1].getnewaddress():1.1}
rawtx = self.nodes[2].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[2].fundrawtransaction(rawtx)
signedTx = self.nodes[2].signrawtransactionwithwallet(fundedTx['hex'])
self.nodes[2].sendrawtransaction(signedTx['hex'])
self.nodes[2].generate(1)
self.sync_all()
# Make sure funds are received at node1.
assert_equal(oldBalance+Decimal('1.10000000'), self.nodes[1].getbalance())
def test_locked_wallet(self):
self.log.info("Test fundrawtxn with locked wallet")
self.nodes[1].encryptwallet("test")
# Drain the keypool.
self.nodes[1].getnewaddress()
self.nodes[1].getrawchangeaddress()
inputs = []
outputs = {self.nodes[0].getnewaddress():1.09999500}
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
# fund a transaction that does not require a new key for the change output
self.nodes[1].fundrawtransaction(rawtx)
# fund a transaction that requires a new key for the change output
# creating the key must be impossible because the wallet is locked
outputs = {self.nodes[0].getnewaddress():1.1}
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
assert_raises_rpc_error(-4, "Transaction needs a change address, but we can't generate it. Please call keypoolrefill first.", self.nodes[1].fundrawtransaction, rawtx)
# Refill the keypool.
self.nodes[1].walletpassphrase("test", 100)
self.nodes[1].keypoolrefill(8) #need to refill the keypool to get an internal change address
self.nodes[1].walletlock()
assert_raises_rpc_error(-13, "walletpassphrase", self.nodes[1].sendtoaddress, self.nodes[0].getnewaddress(), 1.2)
oldBalance = self.nodes[0].getbalance()
inputs = []
outputs = {self.nodes[0].getnewaddress():1.1}
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[1].fundrawtransaction(rawtx)
# Now we need to unlock.
self.nodes[1].walletpassphrase("test", 600)
signedTx = self.nodes[1].signrawtransactionwithwallet(fundedTx['hex'])
self.nodes[1].sendrawtransaction(signedTx['hex'])
self.nodes[1].generate(1)
self.sync_all()
# Make sure funds are received at node1.
assert_equal(oldBalance+Decimal('51.10000000'), self.nodes[0].getbalance())
def test_many_inputs_fee(self):
"""Multiple (~19) inputs tx test | Compare fee."""
self.log.info("Test fundrawtxn fee with many inputs")
# Empty node1, send some small coins from node0 to node1.
self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), self.nodes[1].getbalance(), "", "", True)
self.nodes[1].generate(1)
self.sync_all()
for _ in range(20):
self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.01)
self.nodes[0].generate(1)
self.sync_all()
# Fund a tx with ~20 small inputs.
inputs = []
outputs = {self.nodes[0].getnewaddress():0.15,self.nodes[0].getnewaddress():0.04}
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[1].fundrawtransaction(rawtx)
# Create same transaction over sendtoaddress.
txId = self.nodes[1].sendmany("", outputs)
signedFee = self.nodes[1].getrawmempool(True)[txId]['fee']
# Compare fee.
feeDelta = Decimal(fundedTx['fee']) - Decimal(signedFee)
assert feeDelta >= 0 and feeDelta <= self.fee_tolerance * 19 #~19 inputs
def test_many_inputs_send(self):
"""Multiple (~19) inputs tx test | sign/send."""
self.log.info("Test fundrawtxn sign+send with many inputs")
# Again, empty node1, send some small coins from node0 to node1.
self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), self.nodes[1].getbalance(), "", "", True)
self.nodes[1].generate(1)
self.sync_all()
for _ in range(20):
self.nodes[0].sendtoaddress(self.nodes[1].getnewaddress(), 0.01)
self.nodes[0].generate(1)
self.sync_all()
# Fund a tx with ~20 small inputs.
oldBalance = self.nodes[0].getbalance()
inputs = []
outputs = {self.nodes[0].getnewaddress():0.15,self.nodes[0].getnewaddress():0.04}
rawtx = self.nodes[1].createrawtransaction(inputs, outputs)
fundedTx = self.nodes[1].fundrawtransaction(rawtx)
fundedAndSignedTx = self.nodes[1].signrawtransactionwithwallet(fundedTx['hex'])
self.nodes[1].sendrawtransaction(fundedAndSignedTx['hex'])
self.nodes[1].generate(1)
self.sync_all()
assert_equal(oldBalance+Decimal('50.19000000'), self.nodes[0].getbalance()) #0.19+block reward
def test_op_return(self):
self.log.info("Test fundrawtxn with OP_RETURN and no vin")
rawtx = "0100000000010000000000000000066a047465737400000000"
dec_tx = self.nodes[2].decoderawtransaction(rawtx)
assert_equal(len(dec_tx['vin']), 0)
assert_equal(len(dec_tx['vout']), 1)
rawtxfund = self.nodes[2].fundrawtransaction(rawtx)
dec_tx = self.nodes[2].decoderawtransaction(rawtxfund['hex'])
assert_greater_than(len(dec_tx['vin']), 0) # at least one vin
assert_equal(len(dec_tx['vout']), 2) # one change output added
def test_watchonly(self):
self.log.info("Test fundrawtxn using only watchonly")
inputs = []
outputs = {self.nodes[2].getnewaddress(): self.watchonly_amount / 2}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx, {'includeWatching': True })
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 1)
assert_equal(res_dec["vin"][0]["txid"], self.watchonly_txid)
assert "fee" in result.keys()
assert_greater_than(result["changepos"], -1)
def test_all_watched_funds(self):
self.log.info("Test fundrawtxn using entirety of watched funds")
inputs = []
outputs = {self.nodes[2].getnewaddress(): self.watchonly_amount}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
# Backward compatibility test (2nd param is includeWatching).
result = self.nodes[3].fundrawtransaction(rawtx, True)
res_dec = self.nodes[0].decoderawtransaction(result["hex"])
assert_equal(len(res_dec["vin"]), 2)
assert res_dec["vin"][0]["txid"] == self.watchonly_txid or res_dec["vin"][1]["txid"] == self.watchonly_txid
assert_greater_than(result["fee"], 0)
assert_greater_than(result["changepos"], -1)
assert_equal(result["fee"] + res_dec["vout"][result["changepos"]]["value"], self.watchonly_amount / 10)
signedtx = self.nodes[3].signrawtransactionwithwallet(result["hex"])
assert not signedtx["complete"]
signedtx = self.nodes[0].signrawtransactionwithwallet(signedtx["hex"])
assert signedtx["complete"]
self.nodes[0].sendrawtransaction(signedtx["hex"])
self.nodes[0].generate(1)
self.sync_all()
def test_option_feerate(self):
self.log.info("Test fundrawtxn feeRate option")
# Make sure there is exactly one input so coin selection can't skew the result.
assert_equal(len(self.nodes[3].listunspent(1)), 1)
inputs = []
outputs = {self.nodes[3].getnewaddress() : 1}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = self.nodes[3].fundrawtransaction(rawtx) # uses self.min_relay_tx_fee (set by settxfee)
result2 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee})
result3 = self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 10 * self.min_relay_tx_fee})
assert_raises_rpc_error(-4, "Fee exceeds maximum configured by -maxtxfee", self.nodes[3].fundrawtransaction, rawtx, {"feeRate": 1})
result_fee_rate = result['fee'] * 1000 / count_bytes(result['hex'])
assert_fee_amount(result2['fee'], count_bytes(result2['hex']), 2 * result_fee_rate)
assert_fee_amount(result3['fee'], count_bytes(result3['hex']), 10 * result_fee_rate)
def test_address_reuse(self):
"""Test no address reuse occurs."""
self.log.info("Test fundrawtxn does not reuse addresses")
rawtx = self.nodes[3].createrawtransaction(inputs=[], outputs={self.nodes[3].getnewaddress(): 1})
result3 = self.nodes[3].fundrawtransaction(rawtx)
res_dec = self.nodes[0].decoderawtransaction(result3["hex"])
changeaddress = ""
for out in res_dec['vout']:
if out['value'] > 1.0:
changeaddress += out['scriptPubKey']['addresses'][0]
assert changeaddress != ""
nextaddr = self.nodes[3].getnewaddress()
# Now the change address key should be removed from the keypool.
assert changeaddress != nextaddr
def test_option_subtract_fee_from_outputs(self):
self.log.info("Test fundrawtxn subtractFeeFromOutputs option")
# Make sure there is exactly one input so coin selection can't skew the result.
assert_equal(len(self.nodes[3].listunspent(1)), 1)
inputs = []
outputs = {self.nodes[2].getnewaddress(): 1}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = [self.nodes[3].fundrawtransaction(rawtx), # uses self.min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": []}), # empty subtraction list
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0]}), # uses self.min_relay_tx_fee (set by settxfee)
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee}),
self.nodes[3].fundrawtransaction(rawtx, {"feeRate": 2 * self.min_relay_tx_fee, "subtractFeeFromOutputs": [0]}),]
dec_tx = [self.nodes[3].decoderawtransaction(tx_['hex']) for tx_ in result]
output = [d['vout'][1 - r['changepos']]['value'] for d, r in zip(dec_tx, result)]
change = [d['vout'][r['changepos']]['value'] for d, r in zip(dec_tx, result)]
assert_equal(result[0]['fee'], result[1]['fee'], result[2]['fee'])
assert_equal(result[3]['fee'], result[4]['fee'])
assert_equal(change[0], change[1])
assert_equal(output[0], output[1])
assert_equal(output[0], output[2] + result[2]['fee'])
assert_equal(change[0] + result[0]['fee'], change[2])
assert_equal(output[3], output[4] + result[4]['fee'])
assert_equal(change[3] + result[3]['fee'], change[4])
inputs = []
outputs = {self.nodes[2].getnewaddress(): value for value in (1.0, 1.1, 1.2, 1.3)}
rawtx = self.nodes[3].createrawtransaction(inputs, outputs)
result = [self.nodes[3].fundrawtransaction(rawtx),
# Split the fee between outputs 0, 2, and 3, but not output 1.
self.nodes[3].fundrawtransaction(rawtx, {"subtractFeeFromOutputs": [0, 2, 3]})]
dec_tx = [self.nodes[3].decoderawtransaction(result[0]['hex']),
self.nodes[3].decoderawtransaction(result[1]['hex'])]
# Nested list of non-change output amounts for each transaction.
output = [[out['value'] for i, out in enumerate(d['vout']) if i != r['changepos']]
for d, r in zip(dec_tx, result)]
# List of differences in output amounts between normal and subtractFee transactions.
share = [o0 - o1 for o0, o1 in zip(output[0], output[1])]
# Output 1 is the same in both transactions.
assert_equal(share[1], 0)
# The other 3 outputs are smaller as a result of subtractFeeFromOutputs.
assert_greater_than(share[0], 0)
assert_greater_than(share[2], 0)
assert_greater_than(share[3], 0)
# Outputs 2 and 3 take the same share of the fee.
assert_equal(share[2], share[3])
# Output 0 takes at least as much share of the fee, and no more than 2
# satoshis more, than outputs 2 and 3.
assert_greater_than_or_equal(share[0], share[2])
assert_greater_than_or_equal(share[2] + Decimal(2e-8), share[0])
# The fee is the same in both transactions.
assert_equal(result[0]['fee'], result[1]['fee'])
# The total subtracted from the outputs is equal to the fee.
assert_equal(share[0] + share[2] + share[3], result[0]['fee'])
def test_subtract_fee_with_presets(self):
self.log.info("Test fundrawtxn subtract fee from outputs with preset inputs that are sufficient")
addr = self.nodes[0].getnewaddress()
txid = self.nodes[0].sendtoaddress(addr, 10)
vout = find_vout_for_address(self.nodes[0], txid, addr)
rawtx = self.nodes[0].createrawtransaction([{'txid': txid, 'vout': vout}], [{self.nodes[0].getnewaddress(): 5}])
fundedtx = self.nodes[0].fundrawtransaction(rawtx, {'subtractFeeFromOutputs': [0]})
signedtx = self.nodes[0].signrawtransactionwithwallet(fundedtx['hex'])
self.nodes[0].sendrawtransaction(signedtx['hex'])
if __name__ == '__main__':
RawTransactionsTest().main()
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