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neobytes/qa/rpc-tests/test_framework/test_framework.py
Alexander Block 5299d39338 Multiple refactorings/fixes for LLMQ bases InstantSend and ChainLocks (#2779) 
* Remove unused parameters from CInstantSendManager::ProcessTx

* Pass txHash in CheckCanLock by reference instead of pointer

* Dont' allow locking of TXs without inputs

* Remove unused local variable nInstantSendConfirmationsRequired

* Don't subtract 1 from nInstantSendConfirmationsRequired

This was necessary in the old system but is not necessary in the new system.
It also prevented proper retroactive signing of chained TXs in regtest as
it resulted in child TXs to return true immediately for CheckCanLock when
it should actually have waited for the parent TX to become locked first.

* Access chainActive.Height() while cs_main is locked

* Properly read and write lastChainLockBlock

"pindex" is NOT the chainlocked block after the while loop finishes. We
must use the pindex (renamed to pindexChainLock now) given on method entry.

Also, the GetLastChainLockBlock() result was not assigned to,
lastChainLockBlock which resulted in the while loop to run unnecessarily
long.

* Generalize filtering in NewPoWValidBlock and SyncTransaction

We're actually interested in all TXs that have inputs, so no need to
explicitly check for tx types.

* Use tx.IsCoinBase() instead of checking for index 0

* Handle cases where a TX is not received yet in wait_for_instantlock

* Wait on all nodes for the locks

Otherwise we end up with the sender having it locked but other nodes
not yet, failing the test.

* Fix LogPrintf call in CChainLocksHandler::DoInvalidateBlock
2019-03-19 10:38:16 +03:00

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#!/usr/bin/env python3
# Copyright (c) 2014-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Base class for RPC testing."""
import logging
import optparse
import os
import sys
import shutil
import tempfile
import traceback
from concurrent.futures import ThreadPoolExecutor
from time import time, sleep
from .util import (
assert_equal,
initialize_chain,
start_node,
start_nodes,
connect_nodes_bi,
connect_nodes,
sync_blocks,
sync_mempools,
sync_masternodes,
stop_nodes,
stop_node,
enable_coverage,
check_json_precision,
initialize_chain_clean,
PortSeed,
set_cache_mocktime,
set_genesis_mocktime,
get_mocktime,
set_mocktime,
set_node_times,
p2p_port,
satoshi_round,
wait_to_sync,
copy_datadir)
from .authproxy import JSONRPCException
class BitcoinTestFramework(object):
def __init__(self):
self.num_nodes = 4
self.setup_clean_chain = False
self.nodes = None
def run_test(self):
raise NotImplementedError
def add_options(self, parser):
pass
def setup_chain(self):
self.log.info("Initializing test directory "+self.options.tmpdir)
if self.setup_clean_chain:
initialize_chain_clean(self.options.tmpdir, self.num_nodes)
set_genesis_mocktime()
else:
initialize_chain(self.options.tmpdir, self.num_nodes, self.options.cachedir)
set_cache_mocktime()
def stop_node(self, num_node):
stop_node(self.nodes[num_node], num_node)
def setup_nodes(self):
return start_nodes(self.num_nodes, self.options.tmpdir)
def setup_network(self, split = False):
self.nodes = self.setup_nodes()
# Connect the nodes as a "chain". This allows us
# to split the network between nodes 1 and 2 to get
# two halves that can work on competing chains.
# If we joined network halves, connect the nodes from the joint
# on outward. This ensures that chains are properly reorganised.
if not split:
connect_nodes_bi(self.nodes, 1, 2)
sync_blocks(self.nodes[1:3])
sync_mempools(self.nodes[1:3])
connect_nodes_bi(self.nodes, 0, 1)
connect_nodes_bi(self.nodes, 2, 3)
self.is_network_split = split
self.sync_all()
def split_network(self):
"""
Split the network of four nodes into nodes 0/1 and 2/3.
"""
assert not self.is_network_split
stop_nodes(self.nodes)
self.setup_network(True)
def sync_all(self):
if self.is_network_split:
sync_blocks(self.nodes[:2])
sync_blocks(self.nodes[2:])
sync_mempools(self.nodes[:2])
sync_mempools(self.nodes[2:])
else:
sync_blocks(self.nodes)
sync_mempools(self.nodes)
def join_network(self):
"""
Join the (previously split) network halves together.
"""
assert self.is_network_split
stop_nodes(self.nodes)
self.setup_network(False)
def main(self):
parser = optparse.OptionParser(usage="%prog [options]")
parser.add_option("--nocleanup", dest="nocleanup", default=False, action="store_true",
help="Leave dashds and test.* datadir on exit or error")
parser.add_option("--noshutdown", dest="noshutdown", default=False, action="store_true",
help="Don't stop dashds after the test execution")
parser.add_option("--srcdir", dest="srcdir", default=os.path.normpath(os.path.dirname(os.path.realpath(__file__))+"/../../../src"),
help="Source directory containing dashd/dash-cli (default: %default)")
parser.add_option("--cachedir", dest="cachedir", default=os.path.normpath(os.path.dirname(os.path.realpath(__file__))+"/../../cache"),
help="Directory for caching pregenerated datadirs")
parser.add_option("--tmpdir", dest="tmpdir", default=tempfile.mkdtemp(prefix="test"),
help="Root directory for datadirs")
parser.add_option("-l", "--loglevel", dest="loglevel", default="INFO",
help="log events at this level and higher to the console. Can be set to DEBUG, INFO, WARNING, ERROR or CRITICAL. Passing --loglevel DEBUG will output all logs to console. Note that logs at all levels are always written to the test_framework.log file in the temporary test directory.")
parser.add_option("--tracerpc", dest="trace_rpc", default=False, action="store_true",
help="Print out all RPC calls as they are made")
parser.add_option("--portseed", dest="port_seed", default=os.getpid(), type='int',
help="The seed to use for assigning port numbers (default: current process id)")
parser.add_option("--coveragedir", dest="coveragedir",
help="Write tested RPC commands into this directory")
self.add_options(parser)
(self.options, self.args) = parser.parse_args()
# backup dir variable for removal at cleanup
self.options.root, self.options.tmpdir = self.options.tmpdir, self.options.tmpdir + '/' + str(self.options.port_seed)
if self.options.coveragedir:
enable_coverage(self.options.coveragedir)
PortSeed.n = self.options.port_seed
os.environ['PATH'] = self.options.srcdir+":"+self.options.srcdir+"/qt:"+os.environ['PATH']
check_json_precision()
# Set up temp directory and start logging
os.makedirs(self.options.tmpdir, exist_ok=False)
self._start_logging()
success = False
try:
self.setup_chain()
self.setup_network()
self.run_test()
success = True
except JSONRPCException as e:
self.log.exception("JSONRPC error")
except AssertionError as e:
self.log.exception("Assertion failed")
except KeyError as e:
self.log.exception("Key error")
except Exception as e:
self.log.exception("Unexpected exception caught during testing")
except KeyboardInterrupt as e:
self.log.warning("Exiting after keyboard interrupt")
if not self.options.noshutdown:
self.log.info("Stopping nodes")
try:
stop_nodes(self.nodes)
except BaseException as e:
success = False
self.log.exception("Unexpected exception caught during shutdown")
else:
self.log.info("Note: dashds were not stopped and may still be running")
if not self.options.nocleanup and not self.options.noshutdown and success:
self.log.info("Cleaning up")
shutil.rmtree(self.options.tmpdir)
if not os.listdir(self.options.root):
os.rmdir(self.options.root)
else:
self.log.warning("Not cleaning up dir %s" % self.options.tmpdir)
if os.getenv("PYTHON_DEBUG", ""):
# Dump the end of the debug logs, to aid in debugging rare
# travis failures.
import glob
filenames = glob.glob(self.options.tmpdir + "/node*/regtest/debug.log")
MAX_LINES_TO_PRINT = 1000
for f in filenames:
print("From" , f, ":")
from collections import deque
print("".join(deque(open(f), MAX_LINES_TO_PRINT)))
if success:
self.log.info("Tests successful")
sys.exit(0)
else:
self.log.error("Test failed. Test logging available at %s/test_framework.log", self.options.tmpdir)
logging.shutdown()
sys.exit(1)
def _start_logging(self):
# Add logger and logging handlers
self.log = logging.getLogger('TestFramework')
self.log.setLevel(logging.DEBUG)
# Create file handler to log all messages
fh = logging.FileHandler(self.options.tmpdir + '/test_framework.log')
fh.setLevel(logging.DEBUG)
# Create console handler to log messages to stderr. By default this logs only error messages, but can be configured with --loglevel.
ch = logging.StreamHandler(sys.stdout)
# User can provide log level as a number or string (eg DEBUG). loglevel was caught as a string, so try to convert it to an int
ll = int(self.options.loglevel) if self.options.loglevel.isdigit() else self.options.loglevel.upper()
ch.setLevel(ll)
# Format logs the same as bitcoind's debug.log with microprecision (so log files can be concatenated and sorted)
formatter = logging.Formatter(fmt = '%(asctime)s.%(msecs)03d000 %(name)s (%(levelname)s): %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
fh.setFormatter(formatter)
ch.setFormatter(formatter)
# add the handlers to the logger
self.log.addHandler(fh)
self.log.addHandler(ch)
if self.options.trace_rpc:
rpc_logger = logging.getLogger("BitcoinRPC")
rpc_logger.setLevel(logging.DEBUG)
rpc_handler = logging.StreamHandler(sys.stdout)
rpc_handler.setLevel(logging.DEBUG)
rpc_logger.addHandler(rpc_handler)
MASTERNODE_COLLATERAL = 1000
class MasternodeInfo:
def __init__(self, proTxHash, ownerAddr, votingAddr, pubKeyOperator, keyOperator, collateral_address, collateral_txid, collateral_vout):
self.proTxHash = proTxHash
self.ownerAddr = ownerAddr
self.votingAddr = votingAddr
self.pubKeyOperator = pubKeyOperator
self.keyOperator = keyOperator
self.collateral_address = collateral_address
self.collateral_txid = collateral_txid
self.collateral_vout = collateral_vout
class DashTestFramework(BitcoinTestFramework):
def __init__(self, num_nodes, masterodes_count, extra_args, fast_dip3_enforcement=False):
super().__init__()
self.mn_count = masterodes_count
self.num_nodes = num_nodes
self.mninfo = []
self.setup_clean_chain = True
self.is_network_split = False
# additional args
self.extra_args = extra_args
self.extra_args += ["-sporkkey=cP4EKFyJsHT39LDqgdcB43Y3YXjNyjb5Fuas1GQSeAtjnZWmZEQK"]
self.fast_dip3_enforcement = fast_dip3_enforcement
if fast_dip3_enforcement:
self.extra_args += ["-bip9params=dip0003:0:999999999999:10:5", "-dip3enforcementheight=50"]
def create_simple_node(self):
idx = len(self.nodes)
args = self.extra_args
self.nodes.append(start_node(idx, self.options.tmpdir, args))
for i in range(0, idx):
connect_nodes(self.nodes[i], idx)
def prepare_masternodes(self):
for idx in range(0, self.mn_count):
bls = self.nodes[0].bls('generate')
address = self.nodes[0].getnewaddress()
txid = self.nodes[0].sendtoaddress(address, MASTERNODE_COLLATERAL)
txraw = self.nodes[0].getrawtransaction(txid, True)
collateral_vout = 0
for vout_idx in range(0, len(txraw["vout"])):
vout = txraw["vout"][vout_idx]
if vout["value"] == MASTERNODE_COLLATERAL:
collateral_vout = vout_idx
self.nodes[0].lockunspent(False, [{'txid': txid, 'vout': collateral_vout}])
# send to same address to reserve some funds for fees
self.nodes[0].sendtoaddress(address, 0.001)
ownerAddr = self.nodes[0].getnewaddress()
votingAddr = self.nodes[0].getnewaddress()
rewardsAddr = self.nodes[0].getnewaddress()
port = p2p_port(len(self.nodes) + idx)
if (idx % 2) == 0:
self.nodes[0].lockunspent(True, [{'txid': txid, 'vout': collateral_vout}])
proTxHash = self.nodes[0].protx('register_fund', address, '127.0.0.1:%d' % port, ownerAddr, bls['public'], votingAddr, 0, rewardsAddr, address)
else:
self.nodes[0].generate(1)
proTxHash = self.nodes[0].protx('register', txid, collateral_vout, '127.0.0.1:%d' % port, ownerAddr, bls['public'], votingAddr, 0, rewardsAddr, address)
self.nodes[0].generate(1)
self.mninfo.append(MasternodeInfo(proTxHash, ownerAddr, votingAddr, bls['public'], bls['secret'], address, txid, collateral_vout))
self.sync_all()
def prepare_datadirs(self):
# stop faucet node so that we can copy the datadir
stop_node(self.nodes[0], 0)
start_idx = len(self.nodes)
for idx in range(0, self.mn_count):
copy_datadir(0, idx + start_idx, self.options.tmpdir)
# restart faucet node
self.nodes[0] = start_node(0, self.options.tmpdir, self.extra_args)
def start_masternodes(self):
start_idx = len(self.nodes)
for idx in range(0, self.mn_count):
self.nodes.append(None)
executor = ThreadPoolExecutor(max_workers=20)
def do_start(idx):
args = ['-masternode=1',
'-masternodeblsprivkey=%s' % self.mninfo[idx].keyOperator] + self.extra_args
node = start_node(idx + start_idx, self.options.tmpdir, args)
self.mninfo[idx].nodeIdx = idx + start_idx
self.mninfo[idx].node = node
self.nodes[idx + start_idx] = node
wait_to_sync(node, True)
def do_connect(idx):
for i in range(0, idx + 1):
connect_nodes(self.nodes[idx + start_idx], i)
jobs = []
# start up nodes in parallel
for idx in range(0, self.mn_count):
jobs.append(executor.submit(do_start, idx))
# wait for all nodes to start up
for job in jobs:
job.result()
jobs.clear()
# connect nodes in parallel
for idx in range(0, self.mn_count):
jobs.append(executor.submit(do_connect, idx))
# wait for all nodes to connect
for job in jobs:
job.result()
jobs.clear()
sync_masternodes(self.nodes, True)
executor.shutdown()
def setup_network(self):
self.nodes = []
# create faucet node for collateral and transactions
self.nodes.append(start_node(0, self.options.tmpdir, self.extra_args))
required_balance = MASTERNODE_COLLATERAL * self.mn_count + 1
while self.nodes[0].getbalance() < required_balance:
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(1)
# create connected simple nodes
for i in range(0, self.num_nodes - self.mn_count - 1):
self.create_simple_node()
sync_masternodes(self.nodes, True)
# activate DIP3
if not self.fast_dip3_enforcement:
while self.nodes[0].getblockcount() < 500:
self.nodes[0].generate(10)
self.sync_all()
# create masternodes
self.prepare_masternodes()
self.prepare_datadirs()
self.start_masternodes()
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(1)
# sync nodes
self.sync_all()
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
mn_info = self.nodes[0].masternodelist("status")
assert (len(mn_info) == self.mn_count)
for status in mn_info.values():
assert (status == 'ENABLED')
def get_autois_bip9_status(self, node):
info = node.getblockchaininfo()
# we reuse the dip3 deployment
return info['bip9_softforks']['dip0003']['status']
def activate_autois_bip9(self, node):
# sync nodes periodically
# if we sync them too often, activation takes too many time
# if we sync them too rarely, nodes failed to update its state and
# bip9 status is not updated
# so, in this code nodes are synced once per 20 blocks
counter = 0
sync_period = 10
while self.get_autois_bip9_status(node) == 'defined':
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
node.generate(1)
counter += 1
if counter % sync_period == 0:
# sync nodes
self.sync_all()
while self.get_autois_bip9_status(node) == 'started':
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
node.generate(1)
counter += 1
if counter % sync_period == 0:
# sync nodes
self.sync_all()
while self.get_autois_bip9_status(node) == 'locked_in':
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
node.generate(1)
counter += 1
if counter % sync_period == 0:
# sync nodes
self.sync_all()
# sync nodes
self.sync_all()
assert(self.get_autois_bip9_status(node) == 'active')
def get_autois_spork_state(self, node):
info = node.spork('active')
return info['SPORK_16_INSTANTSEND_AUTOLOCKS']
def set_autois_spork_state(self, node, state):
# Increment mocktime as otherwise nodes will not update sporks
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
if state:
value = 0
else:
value = 4070908800
node.spork('SPORK_16_INSTANTSEND_AUTOLOCKS', value)
def create_raw_tx(self, node_from, node_to, amount, min_inputs, max_inputs):
assert (min_inputs <= max_inputs)
# fill inputs
inputs = []
balances = node_from.listunspent()
in_amount = 0.0
last_amount = 0.0
for tx in balances:
if len(inputs) < min_inputs:
input = {}
input["txid"] = tx['txid']
input['vout'] = tx['vout']
in_amount += float(tx['amount'])
inputs.append(input)
elif in_amount > amount:
break
elif len(inputs) < max_inputs:
input = {}
input["txid"] = tx['txid']
input['vout'] = tx['vout']
in_amount += float(tx['amount'])
inputs.append(input)
else:
input = {}
input["txid"] = tx['txid']
input['vout'] = tx['vout']
in_amount -= last_amount
in_amount += float(tx['amount'])
inputs[-1] = input
last_amount = float(tx['amount'])
assert (len(inputs) >= min_inputs)
assert (len(inputs) <= max_inputs)
assert (in_amount >= amount)
# fill outputs
receiver_address = node_to.getnewaddress()
change_address = node_from.getnewaddress()
fee = 0.001
outputs = {}
outputs[receiver_address] = satoshi_round(amount)
outputs[change_address] = satoshi_round(in_amount - amount - fee)
rawtx = node_from.createrawtransaction(inputs, outputs)
return node_from.signrawtransaction(rawtx)
# sends regular instantsend with high fee
def send_regular_instantsend(self, sender, receiver, check_fee = True):
receiver_addr = receiver.getnewaddress()
txid = sender.instantsendtoaddress(receiver_addr, 1.0)
if (check_fee):
MIN_FEE = satoshi_round(-0.0001)
fee = sender.gettransaction(txid)['fee']
expected_fee = MIN_FEE * len(sender.getrawtransaction(txid, True)['vin'])
assert_equal(fee, expected_fee)
return self.wait_for_instantlock(txid, sender)
# sends simple tx, it should become locked if autolocks are allowed
def send_simple_tx(self, sender, receiver):
raw_tx = self.create_raw_tx(sender, receiver, 1.0, 1, 4)
txid = self.nodes[0].sendrawtransaction(raw_tx['hex'])
self.sync_all()
return self.wait_for_instantlock(txid, sender)
# sends complex tx, it should never become locked for old instentsend
def send_complex_tx(self, sender, receiver):
raw_tx = self.create_raw_tx(sender, receiver, 1.0, 5, 100)
txid = sender.sendrawtransaction(raw_tx['hex'])
self.sync_all()
return self.wait_for_instantlock(txid, sender)
def wait_for_instantlock(self, txid, node):
# wait for instantsend locks
start = time()
locked = False
while True:
try:
is_tx = node.getrawtransaction(txid, True)
if is_tx['instantlock']:
locked = True
break
except:
# TX not received yet?
pass
if time() > start + 10:
break
sleep(0.5)
return locked
def wait_for_sporks_same(self, timeout=30):
st = time()
while time() < st + timeout:
if self.check_sporks_same():
return
sleep(0.5)
raise AssertionError("wait_for_sporks_same timed out")
def check_sporks_same(self):
sporks = self.nodes[0].spork('show')
for node in self.nodes[1:]:
sporks2 = node.spork('show')
if sporks != sporks2:
return False
return True
def wait_for_quorum_phase(self, phase, check_received_messages, check_received_messages_count, timeout=30):
t = time()
while time() - t < timeout:
all_ok = True
for mn in self.mninfo:
s = mn.node.quorum("dkgstatus")["session"]
if "llmq_5_60" not in s:
all_ok = False
break
s = s["llmq_5_60"]
if "phase" not in s:
all_ok = False
break
if s["phase"] != phase:
all_ok = False
break
if check_received_messages is not None:
if s[check_received_messages] < check_received_messages_count:
all_ok = False
break
if all_ok:
return
sleep(0.1)
raise AssertionError("wait_for_quorum_phase timed out")
def wait_for_quorum_commitment(self, timeout = 15):
t = time()
while time() - t < timeout:
all_ok = True
for node in self.nodes:
s = node.quorum("dkgstatus")
if "minableCommitments" not in s:
all_ok = False
break
s = s["minableCommitments"]
if "llmq_5_60" not in s:
all_ok = False
break
if all_ok:
return
sleep(0.1)
raise AssertionError("wait_for_quorum_commitment timed out")
def mine_quorum(self, expected_valid_count=5):
quorums = self.nodes[0].quorum("list")
# move forward to next DKG
skip_count = 24 - (self.nodes[0].getblockcount() % 24)
if skip_count != 0:
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(skip_count)
sync_blocks(self.nodes)
# Make sure all reached phase 1 (init)
self.wait_for_quorum_phase(1, None, 0)
# Give nodes some time to connect to neighbors
sleep(2)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(2)
sync_blocks(self.nodes)
# Make sure all reached phase 2 (contribute) and received all contributions
self.wait_for_quorum_phase(2, "receivedContributions", expected_valid_count)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(2)
sync_blocks(self.nodes)
# Make sure all reached phase 3 (complain) and received all complaints
self.wait_for_quorum_phase(3, "receivedComplaints" if expected_valid_count != 5 else None, expected_valid_count)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(2)
sync_blocks(self.nodes)
# Make sure all reached phase 4 (justify)
self.wait_for_quorum_phase(4, None, 0)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(2)
sync_blocks(self.nodes)
# Make sure all reached phase 5 (commit)
self.wait_for_quorum_phase(5, "receivedPrematureCommitments", expected_valid_count)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(2)
sync_blocks(self.nodes)
# Make sure all reached phase 6 (mining)
self.wait_for_quorum_phase(6, None, 0)
# Wait for final commitment
self.wait_for_quorum_commitment()
# mine the final commitment
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(1)
while quorums == self.nodes[0].quorum("list"):
sleep(2)
set_mocktime(get_mocktime() + 1)
set_node_times(self.nodes, get_mocktime())
self.nodes[0].generate(1)
sync_blocks(self.nodes)
sync_blocks(self.nodes)
# Test framework for doing p2p comparison testing, which sets up some bitcoind
# binaries:
# 1 binary: test binary
# 2 binaries: 1 test binary, 1 ref binary
# n>2 binaries: 1 test binary, n-1 ref binaries
class ComparisonTestFramework(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 2
self.setup_clean_chain = True
def add_options(self, parser):
parser.add_option("--testbinary", dest="testbinary",
default=os.getenv("BITCOIND", "dashd"),
help="dashd binary to test")
parser.add_option("--refbinary", dest="refbinary",
default=os.getenv("BITCOIND", "dashd"),
help="dashd binary to use for reference nodes (if any)")
def setup_network(self):
self.nodes = start_nodes(
self.num_nodes, self.options.tmpdir,
extra_args=[['-whitelist=127.0.0.1']] * self.num_nodes,
binary=[self.options.testbinary] +
[self.options.refbinary]*(self.num_nodes-1))
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