diff options
Diffstat (limited to 'test/functional/test_framework/util.py')
| -rw-r--r-- | test/functional/test_framework/util.py | 692 |
1 files changed, 313 insertions, 379 deletions
diff --git a/test/functional/test_framework/util.py b/test/functional/test_framework/util.py index fa6388bf96..102c903018 100644 --- a/test/functional/test_framework/util.py +++ b/test/functional/test_framework/util.py @@ -4,108 +4,177 @@ # file COPYING or http://www.opensource.org/licenses/mit-license.php. """Helpful routines for regression testing.""" -import os -import sys - -from binascii import hexlify, unhexlify from base64 import b64encode +from binascii import hexlify, unhexlify from decimal import Decimal, ROUND_DOWN +import hashlib import json -import http.client +import logging +import os import random -import shutil -import subprocess -import tempfile -import time import re -import errno -import logging +from subprocess import CalledProcessError +import time from . import coverage from .authproxy import AuthServiceProxy, JSONRPCException -COVERAGE_DIR = None - logger = logging.getLogger("TestFramework.utils") -# 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 +# Assert functions +################## +def assert_fee_amount(fee, tx_size, fee_per_kB): + """Assert the fee was in range""" + target_fee = 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 > (tx_size + 2) * fee_per_kB / 1000: + raise AssertionError("Fee of %s BTC too high! (Should be %s BTC)" % (str(fee), str(target_fee))) -class PortSeed: - # Must be initialized with a unique integer for each process - n = None +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)) -#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 assert_greater_than(thing1, thing2): + if thing1 <= thing2: + raise AssertionError("%s <= %s" % (str(thing1), str(thing2))) -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 assert_greater_than_or_equal(thing1, thing2): + if thing1 < thing2: + raise AssertionError("%s < %s" % (str(thing1), str(thing2))) -def disable_mocktime(): - global MOCKTIME - MOCKTIME = 0 +def assert_raises(exc, fun, *args, **kwds): + assert_raises_message(exc, None, fun, *args, **kwds) -def get_mocktime(): - return MOCKTIME +def assert_raises_message(exc, message, fun, *args, **kwds): + try: + fun(*args, **kwds) + except JSONRPCException: + raise AssertionError("Use assert_raises_rpc_error() to test RPC failures") + 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 enable_coverage(dirname): - """Maintain a log of which RPC calls are made during testing.""" - global COVERAGE_DIR - COVERAGE_DIR = dirname +def assert_raises_process_error(returncode, output, fun, *args, **kwds): + """Execute a process and asserts the process return code and output. + Calls function `fun` with arguments `args` and `kwds`. Catches a CalledProcessError + and verifies that the return code and output are as expected. Throws AssertionError if + no CalledProcessError was raised or if the return code and output are not as expected. -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 + returncode (int): the process return code. + output (string): [a substring of] the process output. + fun (function): the function to call. This should execute a process. + args*: positional arguments for the function. + kwds**: named arguments for the function. + """ + try: + fun(*args, **kwds) + except CalledProcessError as e: + if returncode != e.returncode: + raise AssertionError("Unexpected returncode %i" % e.returncode) + if output not in e.output: + raise AssertionError("Expected substring not found:" + e.output) + else: + raise AssertionError("No exception raised") - Kwargs: - timeout (int): HTTP timeout in seconds +def assert_raises_rpc_error(code, message, fun, *args, **kwds): + """Run an RPC and verify that a specific JSONRPC exception code and message is raised. - Returns: - AuthServiceProxy. convenience object for making RPC calls. + 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 raised 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. """ - proxy_kwargs = {} - if timeout is not None: - proxy_kwargs['timeout'] = timeout + assert try_rpc(code, message, fun, *args, **kwds), "No exception raised" - proxy = AuthServiceProxy(url, **proxy_kwargs) - proxy.url = url # store URL on proxy for info +def try_rpc(code, message, fun, *args, **kwds): + """Tries to run an rpc command. - coverage_logfile = coverage.get_filename( - COVERAGE_DIR, node_number) if COVERAGE_DIR else None + Test against error code and message if the rpc fails. + Returns whether a JSONRPCException was raised.""" + 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']) + return True + except Exception as e: + raise AssertionError("Unexpected exception raised: " + type(e).__name__) + else: + return False - return coverage.AuthServiceProxyWrapper(proxy, coverage_logfile) +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 p2p_port(n): - assert(n <= MAX_NODES) - return PORT_MIN + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) +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: + 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: + 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 not should_not_find: + raise AssertionError("No objects matched %s" % (str(to_match))) + if num_matched > 0 and should_not_find: + raise AssertionError("Objects were found %s" % (str(to_match))) -def rpc_port(n): - return PORT_MIN + PORT_RANGE + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) +# Utility functions +################### def check_json_precision(): """Make sure json library being used does not lose precision converting BTC values""" n = Decimal("20000000.00000003") - satoshis = int(json.loads(json.dumps(float(n)))*1.0e8) + satoshis = int(json.loads(json.dumps(float(n))) * 1.0e8) if satoshis != 2000000000000003: raise RuntimeError("JSON encode/decode loses precision") @@ -115,93 +184,130 @@ def count_bytes(hex_string): def bytes_to_hex_str(byte_str): return hexlify(byte_str).decode('ascii') +def hash256(byte_str): + sha256 = hashlib.sha256() + sha256.update(byte_str) + sha256d = hashlib.sha256() + sha256d.update(sha256.digest()) + return sha256d.digest()[::-1] + 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 tip. +def satoshi_round(amount): + return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN) - 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. - """ - # 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): +def wait_until(predicate, *, attempts=float('inf'), timeout=float('inf'), lock=None): + if attempts == float('inf') and timeout == float('inf'): + timeout = 60 + attempt = 0 + timeout += time.time() + + while attempt < attempts and time.time() < timeout: + if lock: + with lock: + if predicate(): + return + else: + if predicate(): 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))) + attempt += 1 + time.sleep(0.05) -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") + # Print the cause of the timeout + assert_greater_than(attempts, attempt) + assert_greater_than(timeout, time.time()) + raise RuntimeError('Unreachable') -def sync_mempools(rpc_connections, *, wait=1, timeout=60): +# RPC/P2P connection constants and functions +############################################ + +# 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 + +class PortSeed: + # Must be initialized with a unique integer for each process + n = None + +def get_rpc_proxy(url, node_number, timeout=None, coveragedir=None): """ - Wait until everybody has the same transactions in their memory - pools + 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. + """ - 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): - return - time.sleep(wait) - timeout -= wait - raise AssertionError("Mempool sync failed") + proxy_kwargs = {} + if timeout is not None: + proxy_kwargs['timeout'] = timeout -bitcoind_processes = {} + proxy = AuthServiceProxy(url, **proxy_kwargs) + proxy.url = url # store URL on proxy for info + + coverage_logfile = coverage.get_filename( + coveragedir, node_number) if coveragedir else None + + return coverage.AuthServiceProxyWrapper(proxy, coverage_logfile) + +def p2p_port(n): + assert(n <= MAX_NODES) + return PORT_MIN + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) + +def rpc_port(n): + return PORT_MIN + PORT_RANGE + n + (MAX_NODES * PortSeed.n) % (PORT_RANGE - 1 - MAX_NODES) + +def rpc_url(datadir, i, rpchost=None): + rpc_u, rpc_p = get_auth_cookie(datadir) + 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)) + +# Node functions +################ def initialize_datadir(dirname, n): - datadir = os.path.join(dirname, "node"+str(n)) + datadir = os.path.join(dirname, "node" + str(n)) if not os.path.isdir(datadir): os.makedirs(datadir) with open(os.path.join(datadir, "bitcoin.conf"), 'w', encoding='utf8') as f: f.write("regtest=1\n") - f.write("port="+str(p2p_port(n))+"\n") - f.write("rpcport="+str(rpc_port(n))+"\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 get_datadir_path(dirname, n): - return os.path.join(dirname, "node"+str(n)) + return os.path.join(dirname, "node" + str(n)) -def get_auth_cookie(datadir, n): +def get_auth_cookie(datadir): user = None password = None if os.path.isfile(os.path.join(datadir, "bitcoin.conf")): - with open(os.path.join(datadir, "bitcoin.conf"), 'r') as f: + with open(os.path.join(datadir, "bitcoin.conf"), 'r', encoding='utf8') as f: for line in f: if line.startswith("rpcuser="): - assert user is None # Ensure that there is only one rpcuser line + assert user is None # Ensure that there is only one rpcuser line user = line.split("=")[1].strip("\n") if line.startswith("rpcpassword="): - assert password is None # Ensure that there is only one rpcpassword line + assert password is None # Ensure that there is only one rpcpassword line password = line.split("=")[1].strip("\n") if os.path.isfile(os.path.join(datadir, "regtest", ".cookie")): with open(os.path.join(datadir, "regtest", ".cookie"), 'r') as f: @@ -213,126 +319,12 @@ def get_auth_cookie(datadir, n): raise ValueError("No RPC credentials") return user, password -def rpc_url(datadir, i, rpchost=None): - rpc_u, rpc_p = get_auth_cookie(datadir, 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, datadir, i, rpchost=None): - ''' - 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: - # Check if .cookie file to be created - rpc = get_rpc_proxy(rpc_url(datadir, i, rpchost), 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 - except ValueError as e: # cookie file not found and no rpcuser or rpcassword. bitcoind still starting - if "No RPC credentials" not in str(e): - raise - time.sleep(0.25) - - -def _start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary=None, stderr=None): - """Start a bitcoind and return RPC connection to it - - This function should only be called from within test_framework, not by individual test scripts.""" - - datadir = os.path.join(dirname, "node"+str(i)) - if binary is None: - binary = os.getenv("BITCOIND", "bitcoind") - args = [binary, "-datadir=" + datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-logtimemicros", "-debug", "-debugexclude=libevent", "-debugexclude=leveldb", "-mocktime=" + str(get_mocktime()), "-uacomment=testnode%d" % i] - if extra_args is not None: args.extend(extra_args) - bitcoind_processes[i] = subprocess.Popen(args, stderr=stderr) - logger.debug("initialize_chain: bitcoind started, waiting for RPC to come up") - wait_for_bitcoind_start(bitcoind_processes[i], datadir, i, rpchost) - logger.debug("initialize_chain: RPC successfully started") - proxy = get_rpc_proxy(rpc_url(datadir, i, rpchost), i, timeout=timewait) - - if COVERAGE_DIR: - coverage.write_all_rpc_commands(COVERAGE_DIR, proxy) - - return proxy - -def assert_start_raises_init_error(i, dirname, extra_args=None, expected_msg=None): - with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stderr: - try: - node = _start_node(i, dirname, extra_args, stderr=log_stderr) - _stop_node(node, i) - except Exception as e: - assert 'bitcoind exited' in str(e) #node must have shutdown - if expected_msg is not None: - log_stderr.seek(0) - stderr = log_stderr.read().decode('utf-8') - if expected_msg not in stderr: - raise AssertionError("Expected error \"" + expected_msg + "\" not found in:\n" + stderr) - else: - if expected_msg is None: - assert_msg = "bitcoind should have exited with an error" - else: - assert_msg = "bitcoind should have exited with expected error " + expected_msg - raise AssertionError(assert_msg) - -def _start_nodes(num_nodes, dirname, extra_args=None, rpchost=None, timewait=None, binary=None): - """Start multiple bitcoinds, return RPC connections to them - - This function should only be called from within test_framework, not by individual test scripts.""" - - if extra_args is None: extra_args = [ None for _ in range(num_nodes) ] - if binary is None: binary = [ None for _ in range(num_nodes) ] - assert_equal(len(extra_args), num_nodes) - assert_equal(len(binary), 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) + return os.path.join(dirname, "node" + str(n_node), "regtest", logname) -def _stop_node(node, i): - """Stop a bitcoind test node - - This function should only be called from within test_framework, not by individual test scripts.""" - - logger.debug("Stopping node %d" % i) - try: - node.stop() - except http.client.CannotSendRequest as e: - logger.exception("Unable to stop node") - return_code = bitcoind_processes[i].wait(timeout=BITCOIND_PROC_WAIT_TIMEOUT) - del bitcoind_processes[i] - assert_equal(return_code, 0) - -def _stop_nodes(nodes): - """Stop multiple bitcoind test nodes - - This function should only be called from within test_framework, not by individual test scripts.""" - - for i, node in enumerate(nodes): - _stop_node(node, i) - assert not bitcoind_processes.values() # All connections must be gone now +def get_bip9_status(node, key): + info = node.getblockchaininfo() + return info['bip9_softforks'][key] def set_node_times(nodes, t): for node in nodes: @@ -350,7 +342,7 @@ def disconnect_nodes(from_connection, node_num): raise AssertionError("timed out waiting for disconnect") def connect_nodes(from_connection, node_num): - ip_port = "127.0.0.1:"+str(p2p_port(node_num)) + ip_port = "127.0.0.1:" + str(p2p_port(node_num)) from_connection.addnode(ip_port, "onetry") # poll until version handshake complete to avoid race conditions # with transaction relaying @@ -361,6 +353,63 @@ def connect_nodes_bi(nodes, a, b): connect_nodes(nodes[a], b) connect_nodes(nodes[b], a) +def sync_blocks(rpc_connections, *, wait=1, timeout=60): + """ + 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. + """ + # 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, timeout=60): + """ + Wait until everybody has the same transactions in their memory + pools + """ + 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): + return + time.sleep(wait) + timeout -= wait + raise AssertionError("Mempool sync failed") + +# Transaction/Block functions +############################# + def find_output(node, txid, amount): """ Return index to output of txid with value amount @@ -370,14 +419,13 @@ def find_output(node, txid, amount): for i in range(len(txdata["vout"])): if txdata["vout"][i]["value"] == amount: return i - raise RuntimeError("find_output txid %s : %s not found"%(txid,str(amount))) - + raise RuntimeError("find_output txid %s : %s not found" % (txid, str(amount))) def gather_inputs(from_node, amount_needed, confirmations_required=1): """ Return a random set of unspent txouts that are enough to pay amount_needed """ - assert(confirmations_required >=0) + assert(confirmations_required >= 0) utxo = from_node.listunspent(confirmations_required) random.shuffle(utxo) inputs = [] @@ -385,9 +433,9 @@ def gather_inputs(from_node, amount_needed, confirmations_required=1): while total_in < amount_needed and len(utxo) > 0: t = utxo.pop() total_in += t["amount"] - inputs.append({ "txid" : t["txid"], "vout" : t["vout"], "address" : t["address"] } ) + inputs.append({"txid": t["txid"], "vout": t["vout"], "address": t["address"]}) if total_in < amount_needed: - raise RuntimeError("Insufficient funds: need %d, have %d"%(amount_needed, total_in)) + raise RuntimeError("Insufficient funds: need %d, have %d" % (amount_needed, total_in)) return (total_in, inputs) def make_change(from_node, amount_in, amount_out, fee): @@ -395,13 +443,13 @@ def make_change(from_node, amount_in, amount_out, fee): Create change output(s), return them """ outputs = {} - amount = amount_out+fee + amount = amount_out + fee change = amount_in - amount - if change > amount*2: + if change > amount * 2: # Create an extra change output to break up big inputs change_address = from_node.getnewaddress() # Split change in two, being careful of rounding: - outputs[change_address] = Decimal(change/2).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN) + outputs[change_address] = Decimal(change / 2).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN) change = amount_in - amount - outputs[change_address] if change > 0: outputs[from_node.getnewaddress()] = change @@ -414,9 +462,9 @@ def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants): """ from_node = random.choice(nodes) to_node = random.choice(nodes) - fee = min_fee + fee_increment*random.randint(0,fee_variants) + fee = min_fee + fee_increment * random.randint(0, fee_variants) - (total_in, inputs) = gather_inputs(from_node, amount+fee) + (total_in, inputs) = gather_inputs(from_node, amount + fee) outputs = make_change(from_node, total_in, amount, fee) outputs[to_node.getnewaddress()] = float(amount) @@ -426,123 +474,13 @@ def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants): return (txid, signresult["hex"], fee) -def assert_fee_amount(fee, tx_size, fee_per_kB): - """Assert the fee was in range""" - target_fee = 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 > (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 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 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)+101) + to_generate = int(0.5 * count) + 101 + while to_generate > 0: + node.generate(min(25, to_generate)) + to_generate -= 25 utxos = node.listunspent() iterations = count - len(utxos) addr1 = node.getnewaddress() @@ -552,14 +490,14 @@ def create_confirmed_utxos(fee, node, count): for i in range(iterations): t = utxos.pop() inputs = [] - inputs.append({ "txid" : t["txid"], "vout" : t["vout"]}) + 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) + 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) + node.sendrawtransaction(signed_tx) while (node.getmempoolinfo()['size'] > 0): node.generate(1) @@ -574,8 +512,8 @@ 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 = "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" @@ -589,8 +527,8 @@ def gen_return_txouts(): return txouts def create_tx(node, coinbase, to_address, amount): - inputs = [{ "txid" : coinbase, "vout" : 0}] - outputs = { 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) @@ -603,7 +541,7 @@ def create_lots_of_big_transactions(node, txouts, utxos, num, fee): txids = [] for _ in range(num): t = utxos.pop() - inputs=[{ "txid" : t["txid"], "vout" : t["vout"]}] + inputs = [{"txid": t["txid"], "vout": t["vout"]}] outputs = {} change = t['amount'] - fee outputs[addr] = satoshi_round(change) @@ -628,7 +566,3 @@ def mine_large_block(node, utxos=None): 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] |