584 lines
24 KiB
Python
Executable file
584 lines
24 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2014-2019 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Base class for RPC testing."""
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import configparser
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from enum import Enum
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import logging
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import argparse
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import os
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import pdb
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import random
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import shutil
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import sys
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import tempfile
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import time
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from .authproxy import JSONRPCException
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from . import coverage
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from .test_node import TestNode
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from .mininode import NetworkThread
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from .util import (
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MAX_NODES,
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PortSeed,
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assert_equal,
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check_json_precision,
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connect_nodes_bi,
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disconnect_nodes,
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get_datadir_path,
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initialize_datadir,
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sync_blocks,
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sync_mempools,
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)
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class TestStatus(Enum):
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PASSED = 1
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FAILED = 2
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SKIPPED = 3
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TEST_EXIT_PASSED = 0
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TEST_EXIT_FAILED = 1
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TEST_EXIT_SKIPPED = 77
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TMPDIR_PREFIX = "bitcoin_func_test_"
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class SkipTest(Exception):
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"""This exception is raised to skip a test"""
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def __init__(self, message):
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self.message = message
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class BitcoinTestMetaClass(type):
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"""Metaclass for BitcoinTestFramework.
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Ensures that any attempt to register a subclass of `BitcoinTestFramework`
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adheres to a standard whereby the subclass overrides `set_test_params` and
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`run_test` but DOES NOT override either `__init__` or `main`. If any of
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those standards are violated, a ``TypeError`` is raised."""
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def __new__(cls, clsname, bases, dct):
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if not clsname == 'BitcoinTestFramework':
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if not ('run_test' in dct and 'set_test_params' in dct):
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raise TypeError("BitcoinTestFramework subclasses must override "
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"'run_test' and 'set_test_params'")
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if '__init__' in dct or 'main' in dct:
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raise TypeError("BitcoinTestFramework subclasses may not override "
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"'__init__' or 'main'")
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return super().__new__(cls, clsname, bases, dct)
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class BitcoinTestFramework(metaclass=BitcoinTestMetaClass):
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"""Base class for a bitcoin test script.
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Individual bitcoin test scripts should subclass this class and override the set_test_params() and run_test() methods.
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Individual tests can also override the following methods to customize the test setup:
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- add_options()
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- setup_chain()
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- setup_network()
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- setup_nodes()
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The __init__() and main() methods should not be overridden.
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This class also contains various public and private helper methods."""
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def __init__(self):
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"""Sets test framework defaults. Do not override this method. Instead, override the set_test_params() method"""
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self.chain = 'regtest'
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self.setup_clean_chain = False
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self.nodes = []
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self.network_thread = None
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self.rpc_timeout = 60 # Wait for up to 60 seconds for the RPC server to respond
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self.supports_cli = False
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self.bind_to_localhost_only = True
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self.set_test_params()
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assert hasattr(self, "num_nodes"), "Test must set self.num_nodes in set_test_params()"
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def main(self):
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"""Main function. This should not be overridden by the subclass test scripts."""
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parser = argparse.ArgumentParser(usage="%(prog)s [options]")
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parser.add_argument("--nocleanup", dest="nocleanup", default=False, action="store_true",
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help="Leave bitcoinds and test.* datadir on exit or error")
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parser.add_argument("--noshutdown", dest="noshutdown", default=False, action="store_true",
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help="Don't stop bitcoinds after the test execution")
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parser.add_argument("--cachedir", dest="cachedir", default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../cache"),
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help="Directory for caching pregenerated datadirs (default: %(default)s)")
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parser.add_argument("--tmpdir", dest="tmpdir", help="Root directory for datadirs")
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parser.add_argument("-l", "--loglevel", dest="loglevel", default="INFO",
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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.")
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parser.add_argument("--tracerpc", dest="trace_rpc", default=False, action="store_true",
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help="Print out all RPC calls as they are made")
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parser.add_argument("--portseed", dest="port_seed", default=os.getpid(), type=int,
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help="The seed to use for assigning port numbers (default: current process id)")
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parser.add_argument("--coveragedir", dest="coveragedir",
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help="Write tested RPC commands into this directory")
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parser.add_argument("--configfile", dest="configfile",
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default=os.path.abspath(os.path.dirname(os.path.realpath(__file__)) + "/../../config.ini"),
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help="Location of the test framework config file (default: %(default)s)")
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parser.add_argument("--pdbonfailure", dest="pdbonfailure", default=False, action="store_true",
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help="Attach a python debugger if test fails")
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parser.add_argument("--usecli", dest="usecli", default=False, action="store_true",
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help="use bitcoin-cli instead of RPC for all commands")
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parser.add_argument("--perf", dest="perf", default=False, action="store_true",
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help="profile running nodes with perf for the duration of the test")
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parser.add_argument("--randomseed", type=int,
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help="set a random seed for deterministically reproducing a previous test run")
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self.add_options(parser)
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self.options = parser.parse_args()
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PortSeed.n = self.options.port_seed
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check_json_precision()
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self.options.cachedir = os.path.abspath(self.options.cachedir)
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config = configparser.ConfigParser()
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config.read_file(open(self.options.configfile))
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self.config = config
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self.options.bitcoind = os.getenv("BITCOIND", default=config["environment"]["BUILDDIR"] + '/src/bitcoind' + config["environment"]["EXEEXT"])
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self.options.bitcoincli = os.getenv("BITCOINCLI", default=config["environment"]["BUILDDIR"] + '/src/bitcoin-cli' + config["environment"]["EXEEXT"])
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os.environ['PATH'] = os.pathsep.join([
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os.path.join(config['environment']['BUILDDIR'], 'src'),
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os.path.join(config['environment']['BUILDDIR'], 'src', 'qt'),
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os.environ['PATH']
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])
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# Set up temp directory and start logging
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if self.options.tmpdir:
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self.options.tmpdir = os.path.abspath(self.options.tmpdir)
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os.makedirs(self.options.tmpdir, exist_ok=False)
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else:
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self.options.tmpdir = tempfile.mkdtemp(prefix=TMPDIR_PREFIX)
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self._start_logging()
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# Seed the PRNG. Note that test runs are reproducible if and only if
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# a single thread accesses the PRNG. For more information, see
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# https://docs.python.org/3/library/random.html#notes-on-reproducibility.
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# The network thread shouldn't access random. If we need to change the
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# network thread to access randomness, it should instantiate its own
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# random.Random object.
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seed = self.options.randomseed
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if seed is None:
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seed = random.randrange(sys.maxsize)
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else:
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self.log.debug("User supplied random seed {}".format(seed))
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random.seed(seed)
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self.log.debug("PRNG seed is: {}".format(seed))
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self.log.debug('Setting up network thread')
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self.network_thread = NetworkThread()
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self.network_thread.start()
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success = TestStatus.FAILED
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try:
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if self.options.usecli:
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if not self.supports_cli:
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raise SkipTest("--usecli specified but test does not support using CLI")
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self.skip_if_no_cli()
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self.skip_test_if_missing_module()
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self.setup_chain()
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self.setup_network()
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self.run_test()
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success = TestStatus.PASSED
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except JSONRPCException:
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self.log.exception("JSONRPC error")
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except SkipTest as e:
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self.log.warning("Test Skipped: %s" % e.message)
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success = TestStatus.SKIPPED
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except AssertionError:
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self.log.exception("Assertion failed")
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except KeyError:
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self.log.exception("Key error")
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except Exception:
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self.log.exception("Unexpected exception caught during testing")
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except KeyboardInterrupt:
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self.log.warning("Exiting after keyboard interrupt")
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if success == TestStatus.FAILED and self.options.pdbonfailure:
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print("Testcase failed. Attaching python debugger. Enter ? for help")
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pdb.set_trace()
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self.log.debug('Closing down network thread')
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self.network_thread.close()
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if not self.options.noshutdown:
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self.log.info("Stopping nodes")
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if self.nodes:
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self.stop_nodes()
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else:
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for node in self.nodes:
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node.cleanup_on_exit = False
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self.log.info("Note: bitcoinds were not stopped and may still be running")
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should_clean_up = (
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not self.options.nocleanup and
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not self.options.noshutdown and
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success != TestStatus.FAILED and
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not self.options.perf
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)
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if should_clean_up:
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self.log.info("Cleaning up {} on exit".format(self.options.tmpdir))
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cleanup_tree_on_exit = True
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elif self.options.perf:
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self.log.warning("Not cleaning up dir {} due to perf data".format(self.options.tmpdir))
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cleanup_tree_on_exit = False
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else:
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self.log.warning("Not cleaning up dir {}".format(self.options.tmpdir))
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cleanup_tree_on_exit = False
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if success == TestStatus.PASSED:
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self.log.info("Tests successful")
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exit_code = TEST_EXIT_PASSED
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elif success == TestStatus.SKIPPED:
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self.log.info("Test skipped")
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exit_code = TEST_EXIT_SKIPPED
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else:
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self.log.error("Test failed. Test logging available at %s/test_framework.log", self.options.tmpdir)
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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))
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exit_code = TEST_EXIT_FAILED
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logging.shutdown()
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if cleanup_tree_on_exit:
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shutil.rmtree(self.options.tmpdir)
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sys.exit(exit_code)
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# Methods to override in subclass test scripts.
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def set_test_params(self):
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"""Tests must this method to change default values for number of nodes, topology, etc"""
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raise NotImplementedError
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def add_options(self, parser):
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"""Override this method to add command-line options to the test"""
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pass
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def skip_test_if_missing_module(self):
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"""Override this method to skip a test if a module is not compiled"""
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pass
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def setup_chain(self):
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"""Override this method to customize blockchain setup"""
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self.log.info("Initializing test directory " + self.options.tmpdir)
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if self.setup_clean_chain:
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self._initialize_chain_clean()
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else:
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self._initialize_chain()
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def setup_network(self):
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"""Override this method to customize test network topology"""
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self.setup_nodes()
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# Connect the nodes as a "chain". This allows us
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# to split the network between nodes 1 and 2 to get
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# two halves that can work on competing chains.
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#
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# Topology looks like this:
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# node0 <-- node1 <-- node2 <-- node3
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#
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# If all nodes are in IBD (clean chain from genesis), node0 is assumed to be the source of blocks (miner). To
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# ensure block propagation, all nodes will establish outgoing connections toward node0.
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# See fPreferredDownload in net_processing.
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#
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# If further outbound connections are needed, they can be added at the beginning of the test with e.g.
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# connect_nodes(self.nodes[1], 2)
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for i in range(self.num_nodes - 1):
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connect_nodes(self.nodes[i + 1], i)
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self.sync_all()
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def setup_nodes(self):
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"""Override this method to customize test node setup"""
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extra_args = None
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if hasattr(self, "extra_args"):
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extra_args = self.extra_args
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self.add_nodes(self.num_nodes, extra_args)
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self.start_nodes()
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self.import_deterministic_coinbase_privkeys()
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if not self.setup_clean_chain:
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for n in self.nodes:
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assert_equal(n.getblockchaininfo()["blocks"], 199)
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# To ensure that all nodes are out of IBD, the most recent block
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# must have a timestamp not too old (see IsInitialBlockDownload()).
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self.log.debug('Generate a block with current time')
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block_hash = self.nodes[0].generate(1)[0]
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block = self.nodes[0].getblock(blockhash=block_hash, verbosity=0)
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for n in self.nodes:
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n.submitblock(block)
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chain_info = n.getblockchaininfo()
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assert_equal(chain_info["blocks"], 200)
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assert_equal(chain_info["initialblockdownload"], False)
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def import_deterministic_coinbase_privkeys(self):
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for n in self.nodes:
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try:
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n.getwalletinfo()
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except JSONRPCException as e:
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assert str(e).startswith('Method not found')
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continue
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n.importprivkey(privkey=n.get_deterministic_priv_key().key, label='coinbase')
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def run_test(self):
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"""Tests must override this method to define test logic"""
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raise NotImplementedError
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# Public helper methods. These can be accessed by the subclass test scripts.
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def add_nodes(self, num_nodes, extra_args=None, *, rpchost=None, binary=None):
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"""Instantiate TestNode objects.
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Should only be called once after the nodes have been specified in
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set_test_params()."""
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if self.bind_to_localhost_only:
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extra_confs = [["bind=127.0.0.1"]] * num_nodes
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else:
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extra_confs = [[]] * num_nodes
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if extra_args is None:
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extra_args = [[]] * num_nodes
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if binary is None:
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binary = [self.options.bitcoind] * num_nodes
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assert_equal(len(extra_confs), num_nodes)
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assert_equal(len(extra_args), num_nodes)
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assert_equal(len(binary), num_nodes)
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for i in range(num_nodes):
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self.nodes.append(TestNode(
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i,
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get_datadir_path(self.options.tmpdir, i),
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chain=self.chain,
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rpchost=rpchost,
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timewait=self.rpc_timeout,
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bitcoind=binary[i],
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bitcoin_cli=self.options.bitcoincli,
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coverage_dir=self.options.coveragedir,
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cwd=self.options.tmpdir,
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extra_conf=extra_confs[i],
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extra_args=extra_args[i],
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use_cli=self.options.usecli,
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start_perf=self.options.perf,
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))
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def start_node(self, i, *args, **kwargs):
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"""Start a bitcoind"""
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node = self.nodes[i]
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node.start(*args, **kwargs)
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node.wait_for_rpc_connection()
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if self.options.coveragedir is not None:
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coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc)
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def start_nodes(self, extra_args=None, *args, **kwargs):
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"""Start multiple bitcoinds"""
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if extra_args is None:
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extra_args = [None] * self.num_nodes
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assert_equal(len(extra_args), self.num_nodes)
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try:
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for i, node in enumerate(self.nodes):
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node.start(extra_args[i], *args, **kwargs)
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for node in self.nodes:
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node.wait_for_rpc_connection()
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except:
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# If one node failed to start, stop the others
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self.stop_nodes()
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raise
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if self.options.coveragedir is not None:
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for node in self.nodes:
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coverage.write_all_rpc_commands(self.options.coveragedir, node.rpc)
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def stop_node(self, i, expected_stderr='', wait=0):
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"""Stop a bitcoind test node"""
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self.nodes[i].stop_node(expected_stderr, wait=wait)
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self.nodes[i].wait_until_stopped()
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def stop_nodes(self, wait=0):
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"""Stop multiple bitcoind test nodes"""
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for node in self.nodes:
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# Issue RPC to stop nodes
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node.stop_node(wait=wait)
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for node in self.nodes:
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# Wait for nodes to stop
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node.wait_until_stopped()
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def restart_node(self, i, extra_args=None):
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"""Stop and start a test node"""
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self.stop_node(i)
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self.start_node(i, extra_args)
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def wait_for_node_exit(self, i, timeout):
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self.nodes[i].process.wait(timeout)
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def split_network(self):
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"""
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Split the network of four nodes into nodes 0/1 and 2/3.
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"""
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disconnect_nodes(self.nodes[1], 2)
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disconnect_nodes(self.nodes[2], 1)
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self.sync_all(self.nodes[:2])
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self.sync_all(self.nodes[2:])
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def join_network(self):
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"""
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Join the (previously split) network halves together.
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"""
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connect_nodes_bi(self.nodes, 1, 2)
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self.sync_all()
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def sync_blocks(self, nodes=None, **kwargs):
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sync_blocks(nodes or self.nodes, **kwargs)
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def sync_mempools(self, nodes=None, **kwargs):
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sync_mempools(nodes or self.nodes, **kwargs)
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def sync_all(self, nodes=None, **kwargs):
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self.sync_blocks(nodes, **kwargs)
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self.sync_mempools(nodes, **kwargs)
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# Private helper methods. These should not be accessed by the subclass test scripts.
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def _start_logging(self):
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# Add logger and logging handlers
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self.log = logging.getLogger('TestFramework')
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self.log.setLevel(logging.DEBUG)
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# Create file handler to log all messages
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fh = logging.FileHandler(self.options.tmpdir + '/test_framework.log', encoding='utf-8')
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fh.setLevel(logging.DEBUG)
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# Create console handler to log messages to stderr. By default this logs only error messages, but can be configured with --loglevel.
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ch = logging.StreamHandler(sys.stdout)
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# 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
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ll = int(self.options.loglevel) if self.options.loglevel.isdigit() else self.options.loglevel.upper()
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ch.setLevel(ll)
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# Format logs the same as bitcoind's debug.log with microprecision (so log files can be concatenated and sorted)
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formatter = logging.Formatter(fmt='%(asctime)s.%(msecs)03d000Z %(name)s (%(levelname)s): %(message)s', datefmt='%Y-%m-%dT%H:%M:%S')
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|
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."""
|
|
|
|
CACHE_NODE_ID = 0 # Use node 0 to create the cache for all other nodes
|
|
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'],
|
|
rpchost=None,
|
|
timewait=self.rpc_timeout,
|
|
bitcoind=self.options.bitcoind,
|
|
bitcoin_cli=self.options.bitcoincli,
|
|
coverage_dir=None,
|
|
cwd=self.options.tmpdir,
|
|
))
|
|
self.start_node(CACHE_NODE_ID)
|
|
|
|
# Wait for RPC connections to be ready
|
|
self.nodes[CACHE_NODE_ID].wait_for_rpc_connection()
|
|
|
|
# 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):
|
|
self.nodes[CACHE_NODE_ID].generatetoaddress(
|
|
nblocks=25 if i != 7 else 24,
|
|
address=TestNode.PRIV_KEYS[i % 4].address,
|
|
)
|
|
|
|
assert_equal(self.nodes[CACHE_NODE_ID].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, self.chain, *paths)
|
|
|
|
os.rmdir(cache_path('wallets')) # Remove empty wallets dir
|
|
for entry in os.listdir(cache_path()):
|
|
if entry not in ['chainstate', 'blocks']: # Only keep chainstate and blocks folder
|
|
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)
|
|
initialize_datadir(self.options.tmpdir, i, self.chain) # Overwrite port/rpcport in bitcoin.conf
|
|
|
|
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_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_zmq_compiled(self):
|
|
"""Checks whether the zmq module was compiled."""
|
|
return self.config["components"].getboolean("ENABLE_ZMQ")
|