diff --git a/test/functional/combine_logs.py b/test/functional/combine_logs.py index a71c6483b..6019cd92c 100755 --- a/test/functional/combine_logs.py +++ b/test/functional/combine_logs.py @@ -1,149 +1,189 @@ #!/usr/bin/env python3 """Combine logs from multiple bitcoin nodes as well as the test_framework log. This streams the combined log output to stdout. Use combine_logs.py > outputfile -to write to an outputfile.""" +to write to an outputfile. + +If no argument is provided, the most recent test directory will be used.""" import argparse from collections import defaultdict, namedtuple import glob import heapq import itertools import os import re import sys +import tempfile + +# N.B.: don't import any local modules here - this script must remain executable +# without the parent module installed. + +# Should match same symbol in `test_framework.test_framework`. +TMPDIR_PREFIX = "bitcoin_func_test_" # Matches on the date format at the start of the log event TIMESTAMP_PATTERN = re.compile( r"^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d{6})?Z") LogEvent = namedtuple('LogEvent', ['timestamp', 'source', 'event']) def main(): """Main function. Parses args, reads the log files and renders them as text or html.""" - parser = argparse.ArgumentParser( - usage='%(prog)s [options] ', description=__doc__) + description=__doc__, formatter_class=argparse.RawTextHelpFormatter) + parser.add_argument( + 'testdir', nargs='?', default='', + help='temporary test directory to combine logs from. ' + 'Defaults to the most recent') parser.add_argument('-c', '--color', dest='color', action='store_true', - help='outputs the combined log with events colored by source (requires posix terminal colors. Use less -r for viewing)') + help='outputs the combined log with events colored by ' + 'source (requires posix terminal colors. Use less' + ' -r for viewing)') parser.add_argument('--html', dest='html', action='store_true', - help='outputs the combined log as html. Requires jinja2. pip install jinja2') - args, unknown_args = parser.parse_known_args() + help='outputs the combined log as html. ' + 'Requires jinja2. pip install jinja2') + args = parser.parse_args() if args.html and args.color: print("Only one out of --color or --html should be specified") sys.exit(1) - # There should only be one unknown argument - the path of the temporary - # test directory - if len(unknown_args) != 1: - print("Unexpected arguments" + str(unknown_args)) + testdir = args.testdir or find_latest_test_dir() + + if not testdir: + print("No test directories found") sys.exit(1) - log_events = read_logs(unknown_args[0]) + if not args.testdir: + print("Opening latest test directory: {}".format(testdir), + file=sys.stderr) + + log_events = read_logs(testdir) print_logs(log_events, color=args.color, html=args.html) def read_logs(tmp_dir): """Reads log files. Delegates to generator function get_log_events() to provide individual log events for each of the input log files.""" # Find out what the folder is called that holds the debug.log file chain = glob.glob("{}/node0/*/debug.log".format(tmp_dir)) if chain: # pick the first one if more than one chain was found (should never # happen) chain = chain[0] # extract the chain name chain = re.search(r'node0/(.+?)/debug\.log$', chain).group(1) else: # fallback to regtest (should only happen when none exists) chain = 'regtest' files = [("test", "{}/test_framework.log".format(tmp_dir))] for i in itertools.count(): logfile = "{}/node{}/{}/debug.log".format(tmp_dir, i, chain) if not os.path.isfile(logfile): break files.append(("node{}".format(i), logfile)) return heapq.merge(*[get_log_events(source, f) for source, f in files]) +def find_latest_test_dir(): + """Returns the latest tmpfile test directory prefix.""" + tmpdir = tempfile.gettempdir() + + def join_tmp(basename): + return os.path.join(tmpdir, basename) + + def is_valid_test_tmpdir(basename): + fullpath = join_tmp(basename) + return ( + os.path.isdir(fullpath) + and basename.startswith(TMPDIR_PREFIX) + and os.access(fullpath, os.R_OK) + ) + + testdir_paths = [join_tmp(name) for name in os.listdir(tmpdir) + if is_valid_test_tmpdir(name)] + + return max(testdir_paths, key=os.path.getmtime) if testdir_paths else None + + def get_log_events(source, logfile): """Generator function that returns individual log events. Log events may be split over multiple lines. We use the timestamp regex match as the marker for a new log event.""" try: with open(logfile, 'r', encoding='utf-8') as infile: event = '' timestamp = '' for line in infile: # skip blank lines if line == '\n': continue # if this line has a timestamp, it's the start of a new log # event. time_match = TIMESTAMP_PATTERN.match(line) if time_match: if event: yield LogEvent(timestamp=timestamp, source=source, event=event.rstrip()) timestamp = time_match.group() if time_match.group(1) is None: # timestamp does not have microseconds. Add zeroes. timestamp_micro = timestamp.replace("Z", ".000000Z") line = line.replace(timestamp, timestamp_micro) timestamp = timestamp_micro event = line # if it doesn't have a timestamp, it's a continuation line of # the previous log. else: # Add the line. Prefix with space equivalent to the source # + timestamp so log lines are aligned event += " " + line # Flush the final event yield LogEvent(timestamp=timestamp, source=source, event=event.rstrip()) except FileNotFoundError: print("File {} could not be opened. Continuing without it.".format( logfile), file=sys.stderr) def print_logs(log_events, color=False, html=False): """Renders the iterator of log events into text or html.""" if not html: colors = defaultdict(lambda: '') if color: colors["test"] = "\033[0;36m" # CYAN colors["node0"] = "\033[0;34m" # BLUE colors["node1"] = "\033[0;32m" # GREEN colors["node2"] = "\033[0;31m" # RED colors["node3"] = "\033[0;33m" # YELLOW colors["reset"] = "\033[0m" # Reset font color for event in log_events: lines = event.event.splitlines() print("{0} {1: <5} {2} {3}".format( colors[event.source.rstrip()], event.source, lines[0], colors["reset"])) if len(lines) > 1: for line in lines[1:]: print("{0}{1}{2}".format( colors[event.source.rstrip()], line, colors["reset"])) else: try: import jinja2 except ImportError: print("jinja2 not found. Try `pip install jinja2`") sys.exit(1) print(jinja2.Environment(loader=jinja2.FileSystemLoader('./')) .get_template('combined_log_template.html') .render(title="Combined Logs from testcase", log_events=[event._asdict() for event in log_events])) if __name__ == '__main__': main() diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py index 96608602a..294e78903 100755 --- a/test/functional/test_framework/test_framework.py +++ b/test/functional/test_framework/test_framework.py @@ -1,655 +1,657 @@ #!/usr/bin/env python3 # Copyright (c) 2014-2019 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 argparse import configparser from enum import Enum import logging import os import pdb import random import shutil import sys import tempfile import time from .authproxy import JSONRPCException from . import coverage from .test_node import TestNode from .mininode import NetworkThread from .util import ( assert_equal, check_json_precision, connect_nodes, disconnect_nodes, get_datadir_path, initialize_datadir, MAX_NODES, p2p_port, PortSeed, rpc_port, sync_blocks, sync_mempools, ) class TestStatus(Enum): PASSED = 1 FAILED = 2 SKIPPED = 3 TEST_EXIT_PASSED = 0 TEST_EXIT_FAILED = 1 TEST_EXIT_SKIPPED = 77 # Timestamp is Dec. 1st, 2019 at 00:00:00 TIMESTAMP_IN_THE_PAST = 1575158400 +TMPDIR_PREFIX = "bitcoin_func_test_" + class SkipTest(Exception): """This exception is raised to skip a test""" def __init__(self, message): self.message = message class BitcoinTestMetaClass(type): """Metaclass for BitcoinTestFramework. Ensures that any attempt to register a subclass of `BitcoinTestFramework` adheres to a standard whereby the subclass overrides `set_test_params` and `run_test` but DOES NOT override either `__init__` or `main`. If any of those standards are violated, a ``TypeError`` is raised.""" def __new__(cls, clsname, bases, dct): if not clsname == 'BitcoinTestFramework': if not ('run_test' in dct and 'set_test_params' in dct): raise TypeError("BitcoinTestFramework subclasses must override " "'run_test' and 'set_test_params'") if '__init__' in dct or 'main' in dct: raise TypeError("BitcoinTestFramework subclasses may not override " "'__init__' or 'main'") return super().__new__(cls, clsname, bases, dct) class BitcoinTestFramework(metaclass=BitcoinTestMetaClass): """Base class for a bitcoin test script. Individual bitcoin test scripts should subclass this class and override the set_test_params() and run_test() methods. Individual tests can also override the following methods to customize the test setup: - add_options() - setup_chain() - setup_network() - setup_nodes() The __init__() and main() methods should not be overridden. This class also contains various public and private helper methods.""" def __init__(self): """Sets test framework defaults. Do not override this method. Instead, override the set_test_params() method""" self.chain = 'regtest' self.setup_clean_chain = False self.nodes = [] self.network_thread = None # Wait for up to 60 seconds for the RPC server to respond self.rpc_timeout = 60 self.supports_cli = False self.bind_to_localhost_only = True def main(self): """Main function. This should not be overridden by the subclass test scripts.""" parser = argparse.ArgumentParser(usage="%(prog)s [options]") parser.add_argument("--nocleanup", dest="nocleanup", default=False, action="store_true", help="Leave bitcoinds and test.* datadir on exit or error") parser.add_argument("--noshutdown", dest="noshutdown", default=False, action="store_true", help="Don't stop bitcoinds after the test execution") parser.add_argument("--cachedir", dest="cachedir", default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../cache"), help="Directory for caching pregenerated datadirs (default: %(default)s)") parser.add_argument("--tmpdir", dest="tmpdir", help="Root directory for datadirs") parser.add_argument("-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_argument("--tracerpc", dest="trace_rpc", default=False, action="store_true", help="Print out all RPC calls as they are made") parser.add_argument("--portseed", dest="port_seed", default=os.getpid(), type=int, help="The seed to use for assigning port numbers (default: current process id)") parser.add_argument("--coveragedir", dest="coveragedir", help="Write tested RPC commands into this directory") parser.add_argument("--configfile", dest="configfile", default=os.path.abspath(os.path.dirname(os.path.realpath( __file__)) + "/../../config.ini"), help="Location of the test framework config file (default: %(default)s)") parser.add_argument("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true", help="Attach a python debugger if test fails") parser.add_argument("--usecli", dest="usecli", default=False, action="store_true", help="use bitcoin-cli instead of RPC for all commands") parser.add_argument("--perf", dest="perf", default=False, action="store_true", help="profile running nodes with perf for the duration of the test") parser.add_argument("--valgrind", dest="valgrind", default=False, action="store_true", help="run nodes under the valgrind memory error detector: expect at least a ~10x slowdown, valgrind 3.14 or later required") parser.add_argument("--randomseed", type=int, help="set a random seed for deterministically reproducing a previous test run") parser.add_argument("--with-axionactivation", dest="axionactivation", default=False, action="store_true", help="Activate axion update on timestamp {}".format(TIMESTAMP_IN_THE_PAST)) self.add_options(parser) self.options = parser.parse_args() self.set_test_params() assert hasattr( self, "num_nodes"), "Test must set self.num_nodes in set_test_params()" PortSeed.n = self.options.port_seed check_json_precision() self.options.cachedir = os.path.abspath(self.options.cachedir) config = configparser.ConfigParser() config.read_file(open(self.options.configfile, encoding='utf-8')) self.config = config self.options.bitcoind = os.getenv( "BITCOIND", default=config["environment"]["BUILDDIR"] + '/src/bitcoind' + config["environment"]["EXEEXT"]) self.options.bitcoincli = os.getenv( "BITCOINCLI", default=config["environment"]["BUILDDIR"] + '/src/bitcoin-cli' + config["environment"]["EXEEXT"]) self.options.emulator = config["environment"]["EMULATOR"] or None os.environ['PATH'] = config['environment']['BUILDDIR'] + os.pathsep + \ config['environment']['BUILDDIR'] + os.path.sep + "qt" + os.pathsep + \ os.environ['PATH'] # Set up temp directory and start logging if self.options.tmpdir: self.options.tmpdir = os.path.abspath(self.options.tmpdir) os.makedirs(self.options.tmpdir, exist_ok=False) else: - self.options.tmpdir = tempfile.mkdtemp(prefix="test") + self.options.tmpdir = tempfile.mkdtemp(prefix=TMPDIR_PREFIX) self._start_logging() # Seed the PRNG. Note that test runs are reproducible if and only if # a single thread accesses the PRNG. For more information, see # https://docs.python.org/3/library/random.html#notes-on-reproducibility. # The network thread shouldn't access random. If we need to change the # network thread to access randomness, it should instantiate its own # random.Random object. seed = self.options.randomseed if seed is None: seed = random.randrange(sys.maxsize) else: self.log.debug("User supplied random seed {}".format(seed)) random.seed(seed) self.log.debug("PRNG seed is: {}".format(seed)) self.log.debug('Setting up network thread') self.network_thread = NetworkThread() self.network_thread.start() success = TestStatus.FAILED try: if self.options.usecli: if not self.supports_cli: raise SkipTest( "--usecli specified but test does not support using CLI") self.skip_if_no_cli() self.skip_test_if_missing_module() self.setup_chain() self.setup_network() self.run_test() success = TestStatus.PASSED except JSONRPCException: self.log.exception("JSONRPC error") except SkipTest as e: self.log.warning("Test Skipped: {}".format(e.message)) success = TestStatus.SKIPPED except AssertionError: self.log.exception("Assertion failed") except KeyError: self.log.exception("Key error") except Exception: self.log.exception("Unexpected exception caught during testing") except KeyboardInterrupt: self.log.warning("Exiting after keyboard interrupt") if success == TestStatus.FAILED and self.options.pdbonfailure: print("Testcase failed. Attaching python debugger. Enter ? for help") pdb.set_trace() self.log.debug('Closing down network thread') self.network_thread.close() if not self.options.noshutdown: self.log.info("Stopping nodes") if self.nodes: self.stop_nodes() else: for node in self.nodes: node.cleanup_on_exit = False self.log.info( "Note: bitcoinds were not stopped and may still be running") should_clean_up = ( not self.options.nocleanup and not self.options.noshutdown and success != TestStatus.FAILED and not self.options.perf ) if should_clean_up: self.log.info("Cleaning up {} on exit".format(self.options.tmpdir)) cleanup_tree_on_exit = True elif self.options.perf: self.log.warning( "Not cleaning up dir {} due to perf data".format( self.options.tmpdir)) cleanup_tree_on_exit = False else: self.log.warning( "Not cleaning up dir {}".format(self.options.tmpdir)) cleanup_tree_on_exit = False if success == TestStatus.PASSED: self.log.info("Tests successful") exit_code = TEST_EXIT_PASSED elif success == TestStatus.SKIPPED: self.log.info("Test skipped") exit_code = TEST_EXIT_SKIPPED else: self.log.error( "Test failed. Test logging available at {}/test_framework.log".format(self.options.tmpdir)) self.log.error("Hint: Call {} '{}' to consolidate all logs".format(os.path.normpath( os.path.dirname(os.path.realpath(__file__)) + "/../combine_logs.py"), self.options.tmpdir)) exit_code = TEST_EXIT_FAILED logging.shutdown() if cleanup_tree_on_exit: shutil.rmtree(self.options.tmpdir) sys.exit(exit_code) # Methods to override in subclass test scripts. def set_test_params(self): """Tests must this method to change default values for number of nodes, topology, etc""" raise NotImplementedError def add_options(self, parser): """Override this method to add command-line options to the test""" pass def skip_test_if_missing_module(self): """Override this method to skip a test if a module is not compiled""" pass def setup_chain(self): """Override this method to customize blockchain setup""" self.log.info("Initializing test directory " + self.options.tmpdir) if self.setup_clean_chain: self._initialize_chain_clean() else: self._initialize_chain() def setup_network(self): """Override this method to customize test network topology""" 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. # # Topology looks like this: # node0 <-- node1 <-- node2 <-- node3 # # If all nodes are in IBD (clean chain from genesis), node0 is assumed to be the source of blocks (miner). To # ensure block propagation, all nodes will establish outgoing connections toward node0. # See fPreferredDownload in net_processing. # # If further outbound connections are needed, they can be added at the beginning of the test with e.g. # connect_nodes(self.nodes[1], 2) for i in range(self.num_nodes - 1): connect_nodes(self.nodes[i + 1], self.nodes[i]) self.sync_all() def setup_nodes(self): """Override this method to customize test node setup""" extra_args = None if hasattr(self, "extra_args"): extra_args = self.extra_args self.add_nodes(self.num_nodes, extra_args) self.start_nodes() self.import_deterministic_coinbase_privkeys() if not self.setup_clean_chain: for n in self.nodes: assert_equal(n.getblockchaininfo()["blocks"], 199) # To ensure that all nodes are out of IBD, the most recent block # must have a timestamp not too old (see IsInitialBlockDownload()). self.log.debug('Generate a block with current time') block_hash = self.nodes[0].generate(1)[0] block = self.nodes[0].getblock(blockhash=block_hash, verbosity=0) for n in self.nodes: n.submitblock(block) chain_info = n.getblockchaininfo() assert_equal(chain_info["blocks"], 200) assert_equal(chain_info["initialblockdownload"], False) def import_deterministic_coinbase_privkeys(self): for n in self.nodes: try: n.getwalletinfo() except JSONRPCException as e: assert str(e).startswith('Method not found') continue n.importprivkey( privkey=n.get_deterministic_priv_key().key, label='coinbase') def run_test(self): """Tests must override this method to define test logic""" raise NotImplementedError # Public helper methods. These can be accessed by the subclass test # scripts. def add_nodes(self, num_nodes, extra_args=None, *, host=None, binary=None): """Instantiate TestNode objects. Should only be called once after the nodes have been specified in set_test_params().""" if self.bind_to_localhost_only: extra_confs = [["bind=127.0.0.1"]] * num_nodes else: extra_confs = [[]] * num_nodes if extra_args is None: extra_args = [[]] * num_nodes if binary is None: binary = [self.options.bitcoind] * num_nodes assert_equal(len(extra_confs), num_nodes) assert_equal(len(extra_args), num_nodes) assert_equal(len(binary), num_nodes) for i in range(num_nodes): self.nodes.append(TestNode( i, get_datadir_path(self.options.tmpdir, i), chain=self.chain, host=host, rpc_port=rpc_port(i), p2p_port=p2p_port(i), timewait=self.rpc_timeout, bitcoind=binary[i], bitcoin_cli=self.options.bitcoincli, coverage_dir=self.options.coveragedir, cwd=self.options.tmpdir, extra_conf=extra_confs[i], extra_args=extra_args[i], use_cli=self.options.usecli, emulator=self.options.emulator, start_perf=self.options.perf, use_valgrind=self.options.valgrind, )) if self.options.axionactivation: self.nodes[i].extend_default_args( ["-axionactivationtime={}".format(TIMESTAMP_IN_THE_PAST)]) def start_node(self, i, *args, **kwargs): """Start a bitcoind""" node = self.nodes[i] node.start(*args, **kwargs) node.wait_for_rpc_connection() if self.options.coveragedir is not None: coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc) def start_nodes(self, extra_args=None, *args, **kwargs): """Start multiple bitcoinds""" if extra_args is None: extra_args = [None] * self.num_nodes assert_equal(len(extra_args), self.num_nodes) try: for i, node in enumerate(self.nodes): node.start(extra_args[i], *args, **kwargs) for node in self.nodes: node.wait_for_rpc_connection() except BaseException: # If one node failed to start, stop the others self.stop_nodes() raise if self.options.coveragedir is not None: for node in self.nodes: coverage.write_all_rpc_commands( self.options.coveragedir, node.rpc) def stop_node(self, i, expected_stderr='', wait=0): """Stop a bitcoind test node""" self.nodes[i].stop_node(expected_stderr, wait=wait) self.nodes[i].wait_until_stopped() def stop_nodes(self, wait=0): """Stop multiple bitcoind test nodes""" for node in self.nodes: # Issue RPC to stop nodes node.stop_node(wait=wait) for node in self.nodes: # Wait for nodes to stop node.wait_until_stopped() def restart_node(self, i, extra_args=None): """Stop and start a test node""" self.stop_node(i) self.start_node(i, extra_args) def wait_for_node_exit(self, i, timeout): self.nodes[i].process.wait(timeout) def split_network(self): """ Split the network of four nodes into nodes 0/1 and 2/3. """ disconnect_nodes(self.nodes[1], self.nodes[2]) disconnect_nodes(self.nodes[2], self.nodes[1]) self.sync_all(self.nodes[:2]) self.sync_all(self.nodes[2:]) def join_network(self): """ Join the (previously split) network halves together. """ connect_nodes(self.nodes[1], self.nodes[2]) self.sync_all() def sync_blocks(self, nodes=None, **kwargs): sync_blocks(nodes or self.nodes, **kwargs) def sync_mempools(self, nodes=None, **kwargs): sync_mempools(nodes or self.nodes, **kwargs) def sync_all(self, nodes=None, **kwargs): self.sync_blocks(nodes, **kwargs) self.sync_mempools(nodes, **kwargs) # Private helper methods. These should not be accessed by the subclass # test scripts. 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', encoding='utf-8') 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)03d000Z %(name)s (%(levelname)s): %(message)s', datefmt='%Y-%m-%dT%H:%M:%S') formatter.converter = time.gmtime 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) def _initialize_chain(self): """Initialize a pre-mined blockchain for use by the test. Create a cache of a 199-block-long chain Afterward, create num_nodes copies from the cache.""" # Use node 0 to create the cache for all other nodes CACHE_NODE_ID = 0 cache_node_dir = get_datadir_path(self.options.cachedir, CACHE_NODE_ID) assert self.num_nodes <= MAX_NODES if not os.path.isdir(cache_node_dir): self.log.debug( "Creating cache directory {}".format(cache_node_dir)) initialize_datadir( self.options.cachedir, CACHE_NODE_ID, self.chain) self.nodes.append( TestNode( CACHE_NODE_ID, cache_node_dir, chain=self.chain, extra_conf=["bind=127.0.0.1"], extra_args=['-disablewallet'], host=None, rpc_port=rpc_port(CACHE_NODE_ID), p2p_port=p2p_port(CACHE_NODE_ID), timewait=self.rpc_timeout, bitcoind=self.options.bitcoind, bitcoin_cli=self.options.bitcoincli, coverage_dir=None, cwd=self.options.tmpdir, emulator=self.options.emulator, )) if self.options.axionactivation: self.nodes[CACHE_NODE_ID].extend_default_args( ["-axionactivationtime={}".format(TIMESTAMP_IN_THE_PAST)]) self.start_node(CACHE_NODE_ID) cache_node = self.nodes[CACHE_NODE_ID] # Wait for RPC connections to be ready cache_node.wait_for_rpc_connection() # Set a time in the past, so that blocks don't end up in the future cache_node.setmocktime( cache_node.getblockheader( cache_node.getbestblockhash())['time']) # Create a 199-block-long chain; each of the 4 first nodes # gets 25 mature blocks and 25 immature. # The 4th node gets only 24 immature blocks so that the very last # block in the cache does not age too much (have an old tip age). # This is needed so that we are out of IBD when the test starts, # see the tip age check in IsInitialBlockDownload(). for i in range(8): cache_node.generatetoaddress( nblocks=25 if i != 7 else 24, address=TestNode.PRIV_KEYS[i % 4].address, ) assert_equal(cache_node.getblockchaininfo()["blocks"], 199) # Shut it down, and clean up cache directories: self.stop_nodes() self.nodes = [] def cache_path(*paths): return os.path.join(cache_node_dir, "regtest", *paths) # Remove empty wallets dir os.rmdir(cache_path('wallets')) for entry in os.listdir(cache_path()): # Only keep chainstate and blocks folder if entry not in ['chainstate', 'blocks']: os.remove(cache_path(entry)) for i in range(self.num_nodes): self.log.debug( "Copy cache directory {} to node {}".format( cache_node_dir, i)) to_dir = get_datadir_path(self.options.tmpdir, i) shutil.copytree(cache_node_dir, to_dir) # Overwrite port/rpcport in bitcoin.conf initialize_datadir(self.options.tmpdir, i, self.chain) def _initialize_chain_clean(self): """Initialize empty blockchain for use by the test. Create an empty blockchain and num_nodes wallets. Useful if a test case wants complete control over initialization.""" for i in range(self.num_nodes): initialize_datadir(self.options.tmpdir, i, self.chain) def skip_if_no_py3_zmq(self): """Attempt to import the zmq package and skip the test if the import fails.""" try: import zmq # noqa except ImportError: raise SkipTest("python3-zmq module not available.") def skip_if_no_bitcoind_zmq(self): """Skip the running test if bitcoind has not been compiled with zmq support.""" if not self.is_zmq_compiled(): raise SkipTest("bitcoind has not been built with zmq enabled.") def skip_if_no_wallet(self): """Skip the running test if wallet has not been compiled.""" if not self.is_wallet_compiled(): raise SkipTest("wallet has not been compiled.") def skip_if_no_wallet_tool(self): """Skip the running test if bitcoin-wallet has not been compiled.""" if not self.is_wallet_tool_compiled(): raise SkipTest("bitcoin-wallet has not been compiled") def skip_if_no_cli(self): """Skip the running test if bitcoin-cli has not been compiled.""" if not self.is_cli_compiled(): raise SkipTest("bitcoin-cli has not been compiled.") def is_cli_compiled(self): """Checks whether bitcoin-cli was compiled.""" return self.config["components"].getboolean("ENABLE_CLI") def is_wallet_compiled(self): """Checks whether the wallet module was compiled.""" return self.config["components"].getboolean("ENABLE_WALLET") def is_wallet_tool_compiled(self): """Checks whether bitcoin-wallet was compiled.""" return self.config["components"].getboolean("ENABLE_WALLET_TOOL") def is_zmq_compiled(self): """Checks whether the zmq module was compiled.""" return self.config["components"].getboolean("ENABLE_ZMQ")