[tests] reorganize utils.py module (code move only)
This commit re-organizes the utils.py module into logical sections.
This commit is contained in:
John Newbery
parent
0d473c539e
commit
05b8c081b4
|
|
@ -19,264 +19,8 @@ from .authproxy import AuthServiceProxy, JSONRPCException
|
|||
|
||||
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
|
||||
|
||||
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):
|
||||
"""
|
||||
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(
|
||||
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 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)
|
||||
if satoshis != 2000000000000003:
|
||||
raise RuntimeError("JSON encode/decode loses precision")
|
||||
|
||||
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 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")
|
||||
|
||||
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, "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("listenonion=0\n")
|
||||
return datadir
|
||||
|
||||
def get_datadir_path(dirname, n):
|
||||
return os.path.join(dirname, "node" + str(n))
|
||||
|
||||
def get_auth_cookie(datadir, n):
|
||||
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:
|
||||
for line in f:
|
||||
if line.startswith("rpcuser="):
|
||||
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
|
||||
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:
|
||||
userpass = f.read()
|
||||
split_userpass = userpass.split(':')
|
||||
user = split_userpass[0]
|
||||
password = split_userpass[1]
|
||||
if user is None or password is None:
|
||||
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 log_filename(dirname, n_node, logname):
|
||||
return os.path.join(dirname, "node" + str(n_node), "regtest", logname)
|
||||
|
||||
def set_node_times(nodes, t):
|
||||
for node in nodes:
|
||||
node.setmocktime(t)
|
||||
|
||||
def disconnect_nodes(from_connection, node_num):
|
||||
for peer_id in [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']]:
|
||||
from_connection.disconnectnode(nodeid=peer_id)
|
||||
|
||||
for _ in range(50):
|
||||
if [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']] == []:
|
||||
break
|
||||
time.sleep(0.1)
|
||||
else:
|
||||
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))
|
||||
from_connection.addnode(ip_port, "onetry")
|
||||
# poll until version handshake complete to avoid race conditions
|
||||
# with transaction relaying
|
||||
while any(peer['version'] == 0 for peer in from_connection.getpeerinfo()):
|
||||
time.sleep(0.1)
|
||||
|
||||
def connect_nodes_bi(nodes, a, b):
|
||||
connect_nodes(nodes[a], b)
|
||||
connect_nodes(nodes[b], a)
|
||||
|
||||
def find_output(node, txid, amount):
|
||||
"""
|
||||
Return index to output of txid with value amount
|
||||
Raises exception if there is none.
|
||||
"""
|
||||
txdata = node.getrawtransaction(txid, 1)
|
||||
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)))
|
||||
|
||||
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)
|
||||
utxo = from_node.listunspent(confirmations_required)
|
||||
random.shuffle(utxo)
|
||||
inputs = []
|
||||
total_in = Decimal("0.00000000")
|
||||
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"]})
|
||||
if total_in < amount_needed:
|
||||
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):
|
||||
"""
|
||||
Create change output(s), return them
|
||||
"""
|
||||
outputs = {}
|
||||
amount = amount_out + fee
|
||||
change = amount_in - amount
|
||||
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)
|
||||
change = amount_in - amount - outputs[change_address]
|
||||
if change > 0:
|
||||
outputs[from_node.getnewaddress()] = change
|
||||
return outputs
|
||||
|
||||
def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
|
||||
"""
|
||||
Create a random transaction.
|
||||
Returns (txid, hex-encoded-transaction-data, fee)
|
||||
"""
|
||||
from_node = random.choice(nodes)
|
||||
to_node = random.choice(nodes)
|
||||
fee = min_fee + fee_increment * random.randint(0, fee_variants)
|
||||
|
||||
(total_in, inputs) = gather_inputs(from_node, amount + fee)
|
||||
outputs = make_change(from_node, total_in, amount, fee)
|
||||
outputs[to_node.getnewaddress()] = float(amount)
|
||||
|
||||
rawtx = from_node.createrawtransaction(inputs, outputs)
|
||||
signresult = from_node.signrawtransaction(rawtx)
|
||||
txid = from_node.sendrawtransaction(signresult["hex"], True)
|
||||
|
||||
return (txid, signresult["hex"], fee)
|
||||
# Assert functions
|
||||
##################
|
||||
|
||||
def assert_fee_amount(fee, tx_size, fee_per_kB):
|
||||
"""Assert the fee was in range"""
|
||||
|
|
@ -388,9 +132,286 @@ def assert_array_result(object_array, to_match, expected, should_not_find=False)
|
|||
if num_matched > 0 and should_not_find:
|
||||
raise AssertionError("Objects were found %s" % (str(to_match)))
|
||||
|
||||
# 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)
|
||||
if satoshis != 2000000000000003:
|
||||
raise RuntimeError("JSON encode/decode loses precision")
|
||||
|
||||
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 satoshi_round(amount):
|
||||
return Decimal(amount).quantize(Decimal('0.00000001'), rounding=ROUND_DOWN)
|
||||
|
||||
# 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):
|
||||
"""
|
||||
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(
|
||||
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_auth_pair(n):
|
||||
return 'rpcuser💻' + str(n), 'rpcpass🔑' + str(n)
|
||||
|
||||
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))
|
||||
|
||||
# Node functions
|
||||
################
|
||||
|
||||
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, "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("listenonion=0\n")
|
||||
return datadir
|
||||
|
||||
def get_datadir_path(dirname, n):
|
||||
return os.path.join(dirname, "node" + str(n))
|
||||
|
||||
def get_auth_cookie(datadir, n):
|
||||
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:
|
||||
for line in f:
|
||||
if line.startswith("rpcuser="):
|
||||
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
|
||||
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:
|
||||
userpass = f.read()
|
||||
split_userpass = userpass.split(':')
|
||||
user = split_userpass[0]
|
||||
password = split_userpass[1]
|
||||
if user is None or password is None:
|
||||
raise ValueError("No RPC credentials")
|
||||
return user, password
|
||||
|
||||
def log_filename(dirname, n_node, logname):
|
||||
return os.path.join(dirname, "node" + str(n_node), "regtest", logname)
|
||||
|
||||
def get_bip9_status(node, key):
|
||||
info = node.getblockchaininfo()
|
||||
return info['bip9_softforks'][key]
|
||||
|
||||
def set_node_times(nodes, t):
|
||||
for node in nodes:
|
||||
node.setmocktime(t)
|
||||
|
||||
def disconnect_nodes(from_connection, node_num):
|
||||
for peer_id in [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']]:
|
||||
from_connection.disconnectnode(nodeid=peer_id)
|
||||
|
||||
for _ in range(50):
|
||||
if [peer['id'] for peer in from_connection.getpeerinfo() if "testnode%d" % node_num in peer['subver']] == []:
|
||||
break
|
||||
time.sleep(0.1)
|
||||
else:
|
||||
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))
|
||||
from_connection.addnode(ip_port, "onetry")
|
||||
# poll until version handshake complete to avoid race conditions
|
||||
# with transaction relaying
|
||||
while any(peer['version'] == 0 for peer in from_connection.getpeerinfo()):
|
||||
time.sleep(0.1)
|
||||
|
||||
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
|
||||
Raises exception if there is none.
|
||||
"""
|
||||
txdata = node.getrawtransaction(txid, 1)
|
||||
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)))
|
||||
|
||||
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)
|
||||
utxo = from_node.listunspent(confirmations_required)
|
||||
random.shuffle(utxo)
|
||||
inputs = []
|
||||
total_in = Decimal("0.00000000")
|
||||
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"]})
|
||||
if total_in < amount_needed:
|
||||
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):
|
||||
"""
|
||||
Create change output(s), return them
|
||||
"""
|
||||
outputs = {}
|
||||
amount = amount_out + fee
|
||||
change = amount_in - amount
|
||||
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)
|
||||
change = amount_in - amount - outputs[change_address]
|
||||
if change > 0:
|
||||
outputs[from_node.getnewaddress()] = change
|
||||
return outputs
|
||||
|
||||
def random_transaction(nodes, amount, min_fee, fee_increment, fee_variants):
|
||||
"""
|
||||
Create a random transaction.
|
||||
Returns (txid, hex-encoded-transaction-data, fee)
|
||||
"""
|
||||
from_node = random.choice(nodes)
|
||||
to_node = random.choice(nodes)
|
||||
fee = min_fee + fee_increment * random.randint(0, fee_variants)
|
||||
|
||||
(total_in, inputs) = gather_inputs(from_node, amount + fee)
|
||||
outputs = make_change(from_node, total_in, amount, fee)
|
||||
outputs[to_node.getnewaddress()] = float(amount)
|
||||
|
||||
rawtx = from_node.createrawtransaction(inputs, outputs)
|
||||
signresult = from_node.signrawtransaction(rawtx)
|
||||
txid = from_node.sendrawtransaction(signresult["hex"], True)
|
||||
|
||||
return (txid, signresult["hex"], fee)
|
||||
|
||||
# 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):
|
||||
|
|
@ -480,7 +501,3 @@ 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]
|
||||
|
|
|
|||
Loading…
Reference in New Issue