diff options
Diffstat (limited to 'qa/rpc-tests/util.py')
| -rw-r--r-- | qa/rpc-tests/util.py | 178 |
1 files changed, 148 insertions, 30 deletions
diff --git a/qa/rpc-tests/util.py b/qa/rpc-tests/util.py index 40f4a1458f..27c9f778f6 100644 --- a/qa/rpc-tests/util.py +++ b/qa/rpc-tests/util.py @@ -12,6 +12,7 @@ sys.path.append(os.path.join(os.path.dirname(os.path.abspath(__file__)), "python from decimal import Decimal import json +import random import shutil import subprocess import time @@ -20,8 +21,10 @@ import re from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException from util import * -START_P2P_PORT=11000 -START_RPC_PORT=11100 +def p2p_port(n): + return 11000 + n + os.getpid()%999 +def rpc_port(n): + return 12000 + n + os.getpid()%999 def check_json_precision(): """Make sure json library being used does not lose precision converting BTC values""" @@ -58,6 +61,18 @@ def sync_mempools(rpc_connections): bitcoind_processes = [] +def initialize_datadir(dir, n): + datadir = os.path.join(dir, "node"+str(n)) + if not os.path.isdir(datadir): + os.makedirs(datadir) + with open(os.path.join(datadir, "bitcoin.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"); + return datadir + def initialize_chain(test_dir): """ Create (or copy from cache) a 200-block-long chain and @@ -69,17 +84,10 @@ def initialize_chain(test_dir): devnull = open("/dev/null", "w+") # Create cache directories, run bitcoinds: for i in range(4): - datadir = os.path.join("cache", "node"+str(i)) - os.makedirs(datadir) - with open(os.path.join(datadir, "bitcoin.conf"), 'w') as f: - f.write("regtest=1\n"); - f.write("rpcuser=rt\n"); - f.write("rpcpassword=rt\n"); - f.write("port="+str(START_P2P_PORT+i)+"\n"); - f.write("rpcport="+str(START_RPC_PORT+i)+"\n"); + datadir=initialize_datadir("cache", i) args = [ "bitcoind", "-keypool=1", "-datadir="+datadir ] if i > 0: - args.append("-connect=127.0.0.1:"+str(START_P2P_PORT)) + args.append("-connect=127.0.0.1:"+str(p2p_port(0))) bitcoind_processes.append(subprocess.Popen(args)) subprocess.check_call([ "bitcoin-cli", "-datadir="+datadir, "-rpcwait", "getblockcount"], stdout=devnull) @@ -87,7 +95,7 @@ def initialize_chain(test_dir): rpcs = [] for i in range(4): try: - url = "http://rt:rt@127.0.0.1:%d"%(START_RPC_PORT+i,) + url = "http://rt:rt@127.0.0.1:%d"%(rpc_port(i),) rpcs.append(AuthServiceProxy(url)) except: sys.stderr.write("Error connecting to "+url+"\n") @@ -112,6 +120,7 @@ def initialize_chain(test_dir): from_dir = os.path.join("cache", "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 def _rpchost_to_args(rpchost): '''Convert optional IP:port spec to rpcconnect/rpcport args''' @@ -133,25 +142,28 @@ def _rpchost_to_args(rpchost): rv += ['-rpcport=' + rpcport] return rv -def start_nodes(num_nodes, dir, extra_args=None, rpchost=None): - # Start bitcoinds, and wait for RPC interface to be up and running: +def start_node(i, dir, extra_args=None, rpchost=None): + """ + Start a bitcoind and return RPC connection to it + """ + datadir = os.path.join(dir, "node"+str(i)) + args = [ "bitcoind", "-datadir="+datadir, "-keypool=1" ] + if extra_args is not None: args.extend(extra_args) + bitcoind_processes.append(subprocess.Popen(args)) devnull = open("/dev/null", "w+") - for i in range(num_nodes): - datadir = os.path.join(dir, "node"+str(i)) - args = [ "bitcoind", "-datadir="+datadir ] - if extra_args is not None: - args += extra_args[i] - bitcoind_processes.append(subprocess.Popen(args)) - subprocess.check_call([ "bitcoin-cli", "-datadir="+datadir] + - _rpchost_to_args(rpchost) + - ["-rpcwait", "getblockcount"], stdout=devnull) + subprocess.check_call([ "bitcoin-cli", "-datadir="+datadir] + + _rpchost_to_args(rpchost) + + ["-rpcwait", "getblockcount"], stdout=devnull) devnull.close() - # Create&return JSON-RPC connections - rpc_connections = [] - for i in range(num_nodes): - url = "http://rt:rt@%s:%d" % (rpchost or '127.0.0.1', START_RPC_PORT+i,) - rpc_connections.append(AuthServiceProxy(url)) - return rpc_connections + url = "http://rt:rt@%s:%d" % (rpchost or '127.0.0.1', rpc_port(i)) + return AuthServiceProxy(url) + +def start_nodes(num_nodes, dir, extra_args=None, rpchost=None): + """ + Start multiple bitcoinds, return RPC connections to them + """ + if extra_args is None: extra_args = [ None for i in range(num_nodes) ] + return [ start_node(i, dir, extra_args[i], rpchost) for i in range(num_nodes) ] def debug_log(dir, n_node): return os.path.join(dir, "node"+str(n_node), "regtest", "debug.log") @@ -168,8 +180,114 @@ def wait_bitcoinds(): del bitcoind_processes[:] def connect_nodes(from_connection, node_num): - ip_port = "127.0.0.1:"+str(START_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 + while any(peer['version'] == 0 for peer in from_connection.getpeerinfo()): + time.sleep(0.1) + +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): + """ + Return a random set of unspent txouts that are enough to pay amount_needed + """ + utxo = from_node.listunspent(1) + 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+fee*2, 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 + outputs[from_node.getnewaddress()] = float(change/2) + change = change/2 + if change > 0: + outputs[from_node.getnewaddress()] = float(change) + return outputs + +def send_zeropri_transaction(from_node, to_node, amount, fee): + """ + Create&broadcast a zero-priority transaction. + Returns (txid, hex-encoded-txdata) + Ensures transaction is zero-priority by first creating a send-to-self, + then using it's output + """ + + # Create a send-to-self with confirmed inputs: + self_address = from_node.getnewaddress() + (total_in, inputs) = gather_inputs(from_node, amount+fee*2) + outputs = make_change(from_node, total_in, amount+fee, fee) + outputs[self_address] = float(amount+fee) + + self_rawtx = from_node.createrawtransaction(inputs, outputs) + self_signresult = from_node.signrawtransaction(self_rawtx) + self_txid = from_node.sendrawtransaction(self_signresult["hex"], True) + + vout = find_output(from_node, self_txid, amount+fee) + # Now immediately spend the output to create a 1-input, 1-output + # zero-priority transaction: + inputs = [ { "txid" : self_txid, "vout" : vout } ] + 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"]) + +def random_zeropri_transaction(nodes, amount, min_fee, fee_increment, fee_variants): + """ + Create a random zero-priority 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) + (txid, txhex) = send_zeropri_transaction(from_node, to_node, amount, fee) + return (txid, txhex, fee) + +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) def assert_equal(thing1, thing2): if thing1 != thing2: |