diff options
Diffstat (limited to 'qa/rpc-tests/test_framework/util.py')
| -rw-r--r-- | qa/rpc-tests/test_framework/util.py | 536 |
1 files changed, 449 insertions, 87 deletions
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py index cdaabc185..4e4011b3a 100644 --- a/qa/rpc-tests/test_framework/util.py +++ b/qa/rpc-tests/test_framework/util.py @@ -1,29 +1,107 @@ -# Copyright (c) 2014 The Bitcoin Core developers +#!/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. + + # # Helpful routines for regression testing # -# Add python-bitcoinrpc to module search path: +import math import os import sys +from binascii import hexlify, unhexlify +from base64 import b64encode from decimal import Decimal, ROUND_DOWN import json +import http.client import random import shutil import subprocess import time import re +import errno + +from . import coverage +from .authproxy import AuthServiceProxy, JSONRPCException + +COVERAGE_DIR = None + +# The maximum number of nodes a single test can spawn +MAX_NODES = 8 +# Don't assign rpc or p2p ports lower than this +PORT_MIN = 11000 +# The number of ports to "reserve" for p2p and rpc, each +PORT_RANGE = 5000 + +BITCOIND_PROC_WAIT_TIMEOUT = 60 + + +class PortSeed: + # Must be initialized with a unique integer for each process + n = None + +#Set Mocktime default to OFF. +#MOCKTIME is only needed for scripts that use the +#cached version of the blockchain. If the cached +#version of the blockchain is used without MOCKTIME +#then the mempools will not sync due to IBD. +MOCKTIME = 0 + +def enable_mocktime(): + #For backwared compatibility of the python scripts + #with previous versions of the cache, set MOCKTIME + #to Jan 1, 2014 + (201 * 10 * 60) + global MOCKTIME + MOCKTIME = 1388534400 + (201 * 10 * 60) + +def disable_mocktime(): + global MOCKTIME + MOCKTIME = 0 + +def get_mocktime(): + return MOCKTIME + +def enable_coverage(dirname): + """Maintain a log of which RPC calls are made during testing.""" + global COVERAGE_DIR + COVERAGE_DIR = dirname + + +def get_rpc_proxy(url, node_number, timeout=None): + """ + Args: + url (str): URL of the RPC server to call + node_number (int): the node number (or id) that this calls to + + Kwargs: + timeout (int): HTTP timeout in seconds + + Returns: + AuthServiceProxy. convenience object for making RPC calls. + + """ + proxy_kwargs = {} + if timeout is not None: + proxy_kwargs['timeout'] = timeout + + proxy = AuthServiceProxy(url, **proxy_kwargs) + proxy.url = url # store URL on proxy for info + + coverage_logfile = coverage.get_filename( + COVERAGE_DIR, node_number) if COVERAGE_DIR else None + + return coverage.AuthServiceProxyWrapper(proxy, coverage_logfile) -from authproxy import AuthServiceProxy, JSONRPCException -from util import * def p2p_port(n): - return 11000 + n + os.getpid()%999 + assert(n <= MAX_NODES) + return PORT_MIN + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) + def rpc_port(n): - return 12000 + n + os.getpid()%999 + return PORT_MIN + PORT_RANGE + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) def check_json_precision(): """Make sure json library being used does not lose precision converting BTC values""" @@ -32,30 +110,71 @@ def check_json_precision(): if satoshis != 2000000000000003: raise RuntimeError("JSON encode/decode loses precision") -def sync_blocks(rpc_connections, wait=1): +def count_bytes(hex_string): + return len(bytearray.fromhex(hex_string)) + +def bytes_to_hex_str(byte_str): + return hexlify(byte_str).decode('ascii') + +def hex_str_to_bytes(hex_str): + return unhexlify(hex_str.encode('ascii')) + +def str_to_b64str(string): + return b64encode(string.encode('utf-8')).decode('ascii') + +def sync_blocks(rpc_connections, *, wait=1, timeout=60): """ - Wait until everybody has the same block count + Wait until everybody has the same tip. + + sync_blocks needs to be called with an rpc_connections set that has least + one node already synced to the latest, stable tip, otherwise there's a + chance it might return before all nodes are stably synced. """ - while True: - counts = [ x.getblockcount() for x in rpc_connections ] - if counts == [ counts[0] ]*len(counts): - break + # Use getblockcount() instead of waitforblockheight() to determine the + # initial max height because the two RPCs look at different internal global + # variables (chainActive vs latestBlock) and the former gets updated + # earlier. + maxheight = max(x.getblockcount() for x in rpc_connections) + start_time = cur_time = time.time() + while cur_time <= start_time + timeout: + tips = [r.waitforblockheight(maxheight, int(wait * 1000)) for r in rpc_connections] + if all(t["height"] == maxheight for t in tips): + if all(t["hash"] == tips[0]["hash"] for t in tips): + return + raise AssertionError("Block sync failed, mismatched block hashes:{}".format( + "".join("\n {!r}".format(tip) for tip in tips))) + cur_time = time.time() + raise AssertionError("Block sync to height {} timed out:{}".format( + maxheight, "".join("\n {!r}".format(tip) for tip in tips))) + +def sync_chain(rpc_connections, *, wait=1, timeout=60): + """ + Wait until everybody has the same best block + """ + while timeout > 0: + best_hash = [x.getbestblockhash() for x in rpc_connections] + if best_hash == [best_hash[0]]*len(best_hash): + return time.sleep(wait) + timeout -= wait + raise AssertionError("Chain sync failed: Best block hashes don't match") -def sync_mempools(rpc_connections, wait=1): +def sync_mempools(rpc_connections, *, wait=1, timeout=60): """ Wait until everybody has the same transactions in their memory pools """ - while True: + while timeout > 0: pool = set(rpc_connections[0].getrawmempool()) num_match = 1 for i in range(1, len(rpc_connections)): if set(rpc_connections[i].getrawmempool()) == pool: num_match = num_match+1 if num_match == len(rpc_connections): - break + return time.sleep(wait) + timeout -= wait + raise AssertionError("Mempool sync failed") bitcoind_processes = {} @@ -63,71 +182,121 @@ def initialize_datadir(dirname, n): datadir = os.path.join(dirname, "node"+str(n)) if not os.path.isdir(datadir): os.makedirs(datadir) - with open(os.path.join(datadir, "dogecoin.conf"), 'w') as f: - f.write("regtest=1\n"); - f.write("rpcuser=rt\n"); - f.write("rpcpassword=rt\n"); - f.write("port="+str(p2p_port(n))+"\n"); - f.write("rpcport="+str(rpc_port(n))+"\n"); + rpc_u, rpc_p = rpc_auth_pair(n) + with open(os.path.join(datadir, "dogecoin.conf"), 'w', encoding='utf8') as f: + f.write("regtest=1\n") + f.write("rpcuser=" + rpc_u + "\n") + f.write("rpcpassword=" + rpc_p + "\n") + f.write("port="+str(p2p_port(n))+"\n") + f.write("rpcport="+str(rpc_port(n))+"\n") + f.write("listenonion=0\n") return datadir -def initialize_chain(test_dir): +def rpc_auth_pair(n): + return 'rpcuser💻' + str(n), 'rpcpass🔑' + str(n) + +def rpc_url(i, rpchost=None): + rpc_u, rpc_p = rpc_auth_pair(i) + host = '127.0.0.1' + port = rpc_port(i) + if rpchost: + parts = rpchost.split(':') + if len(parts) == 2: + host, port = parts + else: + host = rpchost + return "http://%s:%s@%s:%d" % (rpc_u, rpc_p, host, int(port)) + +def wait_for_bitcoind_start(process, url, i): + ''' + Wait for bitcoind to start. This means that RPC is accessible and fully initialized. + Raise an exception if bitcoind exits during initialization. + ''' + while True: + if process.poll() is not None: + raise Exception('bitcoind exited with status %i during initialization' % process.returncode) + try: + rpc = get_rpc_proxy(url, i) + blocks = rpc.getblockcount() + break # break out of loop on success + except IOError as e: + if e.errno != errno.ECONNREFUSED: # Port not yet open? + raise # unknown IO error + except JSONRPCException as e: # Initialization phase + if e.error['code'] != -28: # RPC in warmup? + raise # unknown JSON RPC exception + time.sleep(0.25) + +def initialize_chain(test_dir, num_nodes, cachedir): """ - Create (or copy from cache) a 200-block-long chain and - 4 wallets. - bitcoind and bitcoin-cli must be in search path. + Create a cache of a 120-block-long chain (with wallet) for MAX_NODES + Afterward, create num_nodes copies from the cache """ - if not os.path.isdir(os.path.join("cache", "node0")): - devnull = open("/dev/null", "w+") + assert num_nodes <= MAX_NODES + create_cache = False + for i in range(MAX_NODES): + if not os.path.isdir(os.path.join(cachedir, 'node'+str(i))): + create_cache = True + break + + if create_cache: + + #find and delete old cache directories if any exist + for i in range(MAX_NODES): + if os.path.isdir(os.path.join(cachedir,"node"+str(i))): + shutil.rmtree(os.path.join(cachedir,"node"+str(i))) + # Create cache directories, run bitcoinds: - for i in range(4): - datadir=initialize_datadir("cache", i) - args = [ os.getenv("DOGECOIND", "dogecoind"), "-keypool=1", "-datadir="+datadir, "-discover=0" ] + for i in range(MAX_NODES): + datadir=initialize_datadir(cachedir, i) + args = [ os.getenv("DOGECOIND", "dogecoind"), "-server", "-keypool=1", "-datadir="+datadir, "-discover=0" ] if i > 0: args.append("-connect=127.0.0.1:"+str(p2p_port(0))) bitcoind_processes[i] = subprocess.Popen(args) if os.getenv("PYTHON_DEBUG", ""): - print "initialize_chain: dogecoind started, calling dogecoin-cli -rpcwait getblockcount" - subprocess.check_call([ os.getenv("DOGECOINCLI", "dogecoin-cli"), "-datadir="+datadir, - "-rpcwait", "getblockcount"], stdout=devnull) + print("initialize_chain: dogecoind started, waiting for RPC to come up") + wait_for_bitcoind_start(bitcoind_processes[i], rpc_url(i), i) if os.getenv("PYTHON_DEBUG", ""): - print "initialize_chain: dogecoin-cli -rpcwait getblockcount completed" - devnull.close() + print("initialize_chain: RPC successfully started") + rpcs = [] - for i in range(4): + for i in range(MAX_NODES): try: - url = "http://rt:[email protected]:%d"%(rpc_port(i),) - rpcs.append(AuthServiceProxy(url)) + rpcs.append(get_rpc_proxy(rpc_url(i), i)) except: sys.stderr.write("Error connecting to "+url+"\n") sys.exit(1) - # Create a 200-block-long chain; each of the 4 nodes - # gets 25 mature blocks and 25 immature. - # blocks are created with timestamps 10 minutes apart, starting - # at 1 Jan 2014 - block_time = 1388534400 + # Create a 120-block-long chain; each of the 4 first nodes + # gets 15 mature blocks and 15 immature. + # Note: To preserve compatibility with older versions of + # initialize_chain, only 4 nodes will generate coins. + # + # blocks are created with timestamps 1 minute apart + # starting from 2010 minutes in the past + enable_mocktime() + block_time = get_mocktime() - (121 * 60) for i in range(2): for peer in range(4): for j in range(15): set_node_times(rpcs, block_time) rpcs[peer].generate(1) - block_time += 10*60 + block_time += 60 # Must sync before next peer starts generating blocks sync_blocks(rpcs) # Shut them down, and clean up cache directories: stop_nodes(rpcs) - wait_bitcoinds() - for i in range(4): - os.remove(log_filename("cache", i, "debug.log")) - os.remove(log_filename("cache", i, "db.log")) - os.remove(log_filename("cache", i, "peers.dat")) - os.remove(log_filename("cache", i, "fee_estimates.dat")) - - for i in range(4): - from_dir = os.path.join("cache", "node"+str(i)) + disable_mocktime() + for i in range(MAX_NODES): + os.remove(log_filename(cachedir, i, "debug.log")) + os.remove(log_filename(cachedir, i, "db.log")) + os.remove(log_filename(cachedir, i, "peers.dat")) + os.remove(log_filename(cachedir, i, "fee_estimates.dat")) + + for i in range(num_nodes): + from_dir = os.path.join(cachedir, "node"+str(i)) to_dir = os.path.join(test_dir, "node"+str(i)) shutil.copytree(from_dir, to_dir) initialize_datadir(test_dir, i) # Overwrite port/rpcport in bitcoin.conf @@ -168,57 +337,58 @@ def start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary= datadir = os.path.join(dirname, "node"+str(i)) if binary is None: binary = os.getenv("DOGECOIND", "dogecoind") - args = [ binary, "-datadir="+datadir, "-keypool=1", "-discover=0", "-rest" ] + args = [ binary, "-datadir="+datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-mocktime="+str(get_mocktime()) ] if extra_args is not None: args.extend(extra_args) bitcoind_processes[i] = subprocess.Popen(args) - devnull = open("/dev/null", "w+") if os.getenv("PYTHON_DEBUG", ""): - print "start_node: dogecoind started, calling dogecoin-cli -rpcwait getblockcount" - subprocess.check_call([ os.getenv("DOGECOINCLI", "dogecoin-cli"), "-datadir="+datadir] + - _rpchost_to_args(rpchost) + - ["-rpcwait", "getblockcount"], stdout=devnull) + print("start_node: dogecoind started, waiting for RPC to come up") + url = rpc_url(i, rpchost) + wait_for_bitcoind_start(bitcoind_processes[i], url, i) if os.getenv("PYTHON_DEBUG", ""): - print "start_node: calling dogecoin-cli -rpcwait getblockcount returned" - devnull.close() - url = "http://rt:rt@%s:%d" % (rpchost or '127.0.0.1', rpc_port(i)) - if timewait is not None: - proxy = AuthServiceProxy(url, timeout=timewait) - else: - proxy = AuthServiceProxy(url) - proxy.url = url # store URL on proxy for info + print("start_node: RPC successfully started") + proxy = get_rpc_proxy(url, i, timeout=timewait) + + if COVERAGE_DIR: + coverage.write_all_rpc_commands(COVERAGE_DIR, proxy) + return proxy -def start_nodes(num_nodes, dirname, extra_args=None, rpchost=None, binary=None): +def start_nodes(num_nodes, dirname, extra_args=None, rpchost=None, timewait=None, binary=None): """ Start multiple bitcoinds, return RPC connections to them """ - if extra_args is None: extra_args = [ None for i in range(num_nodes) ] - if binary is None: binary = [ None for i in range(num_nodes) ] - return [ start_node(i, dirname, extra_args[i], rpchost, binary=binary[i]) for i in range(num_nodes) ] + if extra_args is None: extra_args = [ None for _ in range(num_nodes) ] + if binary is None: binary = [ None for _ in range(num_nodes) ] + rpcs = [] + try: + for i in range(num_nodes): + rpcs.append(start_node(i, dirname, extra_args[i], rpchost, timewait=timewait, binary=binary[i])) + except: # If one node failed to start, stop the others + stop_nodes(rpcs) + raise + return rpcs def log_filename(dirname, n_node, logname): return os.path.join(dirname, "node"+str(n_node), "regtest", logname) def stop_node(node, i): - node.stop() - bitcoind_processes[i].wait() + try: + node.stop() + except http.client.CannotSendRequest as e: + print("WARN: Unable to stop node: " + repr(e)) + return_code = bitcoind_processes[i].wait(timeout=BITCOIND_PROC_WAIT_TIMEOUT) + assert_equal(return_code, 0) del bitcoind_processes[i] def stop_nodes(nodes): - for node in nodes: - node.stop() - del nodes[:] # Emptying array closes connections as a side effect + for i, node in enumerate(nodes): + stop_node(node, i) + assert not bitcoind_processes.values() # All connections must be gone now def set_node_times(nodes, t): for node in nodes: node.setmocktime(t) -def wait_bitcoinds(): - # Wait for all bitcoinds to cleanly exit - for bitcoind in bitcoind_processes.values(): - bitcoind.wait() - bitcoind_processes.clear() - def connect_nodes(from_connection, node_num): ip_port = "127.0.0.1:"+str(p2p_port(node_num)) from_connection.addnode(ip_port, "onetry") @@ -337,20 +507,212 @@ def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants): return (txid, signresult["hex"], fee) -def assert_equal(thing1, thing2): - if thing1 != thing2: - raise AssertionError("%s != %s"%(str(thing1),str(thing2))) +def assert_fee_amount(fee, tx_size, fee_per_kB): + """Assert the fee was in range""" + target_fee = round_tx_size(tx_size) * fee_per_kB / 1000 + if fee < target_fee: + raise AssertionError("Fee of %s BTC too low! (Should be %s BTC)"%(str(fee), str(target_fee))) + # allow the wallet's estimation to be at most 2 bytes off + if fee > round_tx_size(tx_size + 2) * fee_per_kB / 1000: + raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)"%(str(fee), str(target_fee))) + +def round_tx_size(tx_size): + return int(math.ceil(tx_size / 1000.0)) * 1000 + +def assert_equal(thing1, thing2, *args): + if thing1 != thing2 or any(thing1 != arg for arg in args): + raise AssertionError("not(%s)" % " == ".join(str(arg) for arg in (thing1, thing2) + args)) def assert_greater_than(thing1, thing2): if thing1 <= thing2: raise AssertionError("%s <= %s"%(str(thing1),str(thing2))) +def assert_greater_than_or_equal(thing1, thing2): + if thing1 < thing2: + raise AssertionError("%s < %s"%(str(thing1),str(thing2))) + def assert_raises(exc, fun, *args, **kwds): + assert_raises_message(exc, None, fun, *args, **kwds) + +def assert_raises_message(exc, message, fun, *args, **kwds): try: fun(*args, **kwds) - except exc: - pass + except exc as e: + if message is not None and message not in e.error['message']: + raise AssertionError("Expected substring not found:"+e.error['message']) except Exception as e: raise AssertionError("Unexpected exception raised: "+type(e).__name__) else: raise AssertionError("No exception raised") + +def assert_raises_jsonrpc(code, message, fun, *args, **kwds): + """Run an RPC and verify that a specific JSONRPC exception code and message is raised. + + Calls function `fun` with arguments `args` and `kwds`. Catches a JSONRPCException + and verifies that the error code and message are as expected. Throws AssertionError if + no JSONRPCException was returned or if the error code/message are not as expected. + + Args: + code (int), optional: the error code returned by the RPC call (defined + in src/rpc/protocol.h). Set to None if checking the error code is not required. + message (string), optional: [a substring of] the error string returned by the + RPC call. Set to None if checking the error string is not required + fun (function): the function to call. This should be the name of an RPC. + args*: positional arguments for the function. + kwds**: named arguments for the function. + """ + try: + fun(*args, **kwds) + except JSONRPCException as e: + # JSONRPCException was thrown as expected. Check the code and message values are correct. + if (code is not None) and (code != e.error["code"]): + raise AssertionError("Unexpected JSONRPC error code %i" % e.error["code"]) + if (message is not None) and (message not in e.error['message']): + raise AssertionError("Expected substring not found:"+e.error['message']) + except Exception as e: + raise AssertionError("Unexpected exception raised: "+type(e).__name__) + else: + raise AssertionError("No exception raised") + +def assert_is_hex_string(string): + try: + int(string, 16) + except Exception as e: + raise AssertionError( + "Couldn't interpret %r as hexadecimal; raised: %s" % (string, e)) + +def assert_is_hash_string(string, length=64): + if not isinstance(string, str): + raise AssertionError("Expected a string, got type %r" % type(string)) + elif length and len(string) != length: + raise AssertionError( + "String of length %d expected; got %d" % (length, len(string))) + elif not re.match('[abcdef0-9]+$', string): + raise AssertionError( + "String %r contains invalid characters for a hash." % string) + +def assert_array_result(object_array, to_match, expected, should_not_find = False): + """ + Pass in array of JSON objects, a dictionary with key/value pairs + to match against, and another dictionary with expected key/value + pairs. + If the should_not_find flag is true, to_match should not be found + in object_array + """ + if should_not_find == True: + assert_equal(expected, { }) + num_matched = 0 + for item in object_array: + all_match = True + for key,value in to_match.items(): + if item[key] != value: + all_match = False + if not all_match: + continue + elif should_not_find == True: + num_matched = num_matched+1 + for key,value in expected.items(): + if item[key] != value: + raise AssertionError("%s : expected %s=%s"%(str(item), str(key), str(value))) + num_matched = num_matched+1 + if num_matched == 0 and should_not_find != True: + raise AssertionError("No objects matched %s"%(str(to_match))) + if num_matched > 0 and should_not_find == True: + raise AssertionError("Objects were found %s"%(str(to_match))) + +def satoshi_round(amount): + return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN) + +# Helper to create at least "count" utxos +# Pass in a fee that is sufficient for relay and mining new transactions. +def create_confirmed_utxos(fee, node, count): + node.generate(int(0.5*count)+61) + utxos = node.listunspent() + iterations = count - len(utxos) + addr1 = node.getnewaddress() + addr2 = node.getnewaddress() + if iterations <= 0: + return utxos + for i in range(iterations): + t = utxos.pop() + inputs = [] + inputs.append({ "txid" : t["txid"], "vout" : t["vout"]}) + outputs = {} + send_value = t['amount'] - fee + outputs[addr1] = satoshi_round(send_value/2) + outputs[addr2] = satoshi_round(send_value/2) + raw_tx = node.createrawtransaction(inputs, outputs) + signed_tx = node.signrawtransaction(raw_tx)["hex"] + txid = node.sendrawtransaction(signed_tx) + + while (node.getmempoolinfo()['size'] > 0): + node.generate(1) + + utxos = node.listunspent() + assert(len(utxos) >= count) + return utxos + +# Create large OP_RETURN txouts that can be appended to a transaction +# to make it large (helper for constructing large transactions). +def gen_return_txouts(): + # Some pre-processing to create a bunch of OP_RETURN txouts to insert into transactions we create + # So we have big transactions (and therefore can't fit very many into each block) + # create one script_pubkey + script_pubkey = "6a4d0200" #OP_RETURN OP_PUSH2 512 bytes + for i in range (512): + script_pubkey = script_pubkey + "01" + # concatenate 128 txouts of above script_pubkey which we'll insert before the txout for change + txouts = "81" + for k in range(128): + # add txout value + txouts = txouts + "0000000000000000" + # add length of script_pubkey + txouts = txouts + "fd0402" + # add script_pubkey + txouts = txouts + script_pubkey + return txouts + +def create_tx(node, coinbase, to_address, amount): + inputs = [{ "txid" : coinbase, "vout" : 0}] + outputs = { to_address : amount } + rawtx = node.createrawtransaction(inputs, outputs) + signresult = node.signrawtransaction(rawtx) + assert_equal(signresult["complete"], True) + return signresult["hex"] + +# Create a spend of each passed-in utxo, splicing in "txouts" to each raw +# transaction to make it large. See gen_return_txouts() above. +def create_lots_of_big_transactions(node, txouts, utxos, num, fee): + addr = node.getnewaddress() + txids = [] + for _ in range(num): + t = utxos.pop() + inputs=[{ "txid" : t["txid"], "vout" : t["vout"]}] + outputs = {} + change = t['amount'] - fee + outputs[addr] = satoshi_round(change) + rawtx = node.createrawtransaction(inputs, outputs) + newtx = rawtx[0:92] + newtx = newtx + txouts + newtx = newtx + rawtx[94:] + signresult = node.signrawtransaction(newtx, None, None, "NONE") + txid = node.sendrawtransaction(signresult["hex"], True) + txids.append(txid) + return txids + +def mine_large_block(node, utxos=None): + # generate a 66k transaction, + # and 14 of them is close to the 1MB block limit + num = 14 + txouts = gen_return_txouts() + utxos = utxos if utxos is not None else [] + if len(utxos) < num: + utxos.clear() + utxos.extend(node.listunspent()) + fee = 100 * node.getnetworkinfo()["relayfee"] + create_lots_of_big_transactions(node, txouts, utxos, num, fee=fee) + node.generate(1) + +def get_bip9_status(node, key): + info = node.getblockchaininfo() + return info['bip9_softforks'][key] |