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[tests] Move stop_node and start_node methods to BitcoinTestFramework

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This commit moves functions start_node, start_nodes, stop_node and
stop_nodes functions into the BitcoinTestFramework class. It also moves
the bitcoind_processes dict and coverage variables into BitcoinTestFramework.
This commit is contained in:
John Newbery 2017-06-02 13:14:14 -04:00
parent f1fe5368f1
commit cad967a892
11 changed files with 131 additions and 172 deletions
test/functional/test_framework
test_framework.py

135
test/functional/test_framework/test_framework.py
View file

@ -5,7 +5,9 @@
"""Base class for RPC testing."""
from collections import deque
import errno
from enum import Enum
import http.client
import logging
import optparse
import os
@ -16,15 +18,16 @@ import tempfile
import time
import traceback
from .authproxy import JSONRPCException
from . import coverage
from .util import (
PortSeed,
MAX_NODES,
bitcoind_processes,
PortSeed,
assert_equal,
check_json_precision,
connect_nodes_bi,
disable_mocktime,
disconnect_nodes,
enable_coverage,
enable_mocktime,
get_mocktime,
get_rpc_proxy,
@ -34,15 +37,9 @@ from .util import (
p2p_port,
rpc_url,
set_node_times,
_start_node,
_start_nodes,
_stop_node,
_stop_nodes,
sync_blocks,
sync_mempools,
wait_for_bitcoind_start,
)
from .authproxy import JSONRPCException
class TestStatus(Enum):
PASSED = 1
@ -53,6 +50,8 @@ TEST_EXIT_PASSED = 0
TEST_EXIT_FAILED = 1
TEST_EXIT_SKIPPED = 77
BITCOIND_PROC_WAIT_TIMEOUT = 60
class BitcoinTestFramework(object):
"""Base class for a bitcoin test script.
@ -72,7 +71,8 @@ class BitcoinTestFramework(object):
def __init__(self):
self.num_nodes = 4
self.setup_clean_chain = False
self.nodes = None
self.nodes = []
self.bitcoind_processes = {}
def add_options(self, parser):
pass
@ -98,7 +98,7 @@ class BitcoinTestFramework(object):
extra_args = None
if hasattr(self, "extra_args"):
extra_args = self.extra_args
self.nodes = _start_nodes(self.num_nodes, self.options.tmpdir, extra_args)
self.nodes = self.start_nodes(self.num_nodes, self.options.tmpdir, extra_args)
def run_test(self):
raise NotImplementedError
@ -130,9 +130,6 @@ class BitcoinTestFramework(object):
self.add_options(parser)
(self.options, self.args) = parser.parse_args()
if self.options.coveragedir:
enable_coverage(self.options.coveragedir)
PortSeed.n = self.options.port_seed
os.environ['PATH'] = self.options.srcdir + ":" + self.options.srcdir + "/qt:" + os.environ['PATH']
@ -209,16 +206,88 @@ class BitcoinTestFramework(object):
# Public helper methods. These can be accessed by the subclass test scripts.
def start_node(self, i, dirname, extra_args=None, rpchost=None, timewait=None, binary=None, stderr=None):
return _start_node(i, dirname, extra_args, rpchost, timewait, binary, stderr)
"""Start a bitcoind and return RPC connection to it"""
datadir = os.path.join(dirname, "node" + str(i))
if binary is None:
binary = os.getenv("BITCOIND", "bitcoind")
args = [binary, "-datadir=" + datadir, "-server", "-keypool=1", "-discover=0", "-rest", "-logtimemicros", "-debug", "-debugexclude=libevent", "-debugexclude=leveldb", "-mocktime=" + str(get_mocktime()), "-uacomment=testnode%d" % i]
if extra_args is not None:
args.extend(extra_args)
self.bitcoind_processes[i] = subprocess.Popen(args, stderr=stderr)
self.log.debug("initialize_chain: bitcoind started, waiting for RPC to come up")
self._wait_for_bitcoind_start(self.bitcoind_processes[i], datadir, i, rpchost)
self.log.debug("initialize_chain: RPC successfully started")
proxy = get_rpc_proxy(rpc_url(datadir, i, rpchost), i, timeout=timewait)
if self.options.coveragedir:
coverage.write_all_rpc_commands(self.options.coveragedir, proxy)
return proxy
def start_nodes(self, num_nodes, dirname, extra_args=None, rpchost=None, timewait=None, binary=None):
return _start_nodes(num_nodes, dirname, extra_args, rpchost, timewait, binary)
"""Start multiple bitcoinds, return RPC connections to them"""
def stop_node(self, num_node):
_stop_node(self.nodes[num_node], num_node)
if extra_args is None:
extra_args = [None] * num_nodes
if binary is None:
binary = [None] * num_nodes
assert_equal(len(extra_args), num_nodes)
assert_equal(len(binary), num_nodes)
rpcs = []
try:
for i in range(num_nodes):
rpcs.append(self.start_node(i, dirname, extra_args[i], rpchost, timewait=timewait, binary=binary[i]))
except:
# If one node failed to start, stop the others
# TODO: abusing self.nodes in this way is a little hacky.
# Eventually we should do a better job of tracking nodes
self.nodes.extend(rpcs)
self.stop_nodes()
self.nodes = []
raise
return rpcs
def stop_node(self, i):
"""Stop a bitcoind test node"""
self.log.debug("Stopping node %d" % i)
try:
self.nodes[i].stop()
except http.client.CannotSendRequest as e:
self.log.exception("Unable to stop node")
return_code = self.bitcoind_processes[i].wait(timeout=BITCOIND_PROC_WAIT_TIMEOUT)
assert_equal(return_code, 0)
del self.bitcoind_processes[i]
def stop_nodes(self):
_stop_nodes(self.nodes)
"""Stop multiple bitcoind test nodes"""
for i in range(len(self.nodes)):
self.stop_node(i)
assert not self.bitcoind_processes.values() # All connections must be gone now
def assert_start_raises_init_error(self, i, dirname, extra_args=None, expected_msg=None):
with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stderr:
try:
self.start_node(i, dirname, extra_args, stderr=log_stderr)
self.stop_node(i)
except Exception as e:
assert 'bitcoind exited' in str(e) # node must have shutdown
if expected_msg is not None:
log_stderr.seek(0)
stderr = log_stderr.read().decode('utf-8')
if expected_msg not in stderr:
raise AssertionError("Expected error \"" + expected_msg + "\" not found in:\n" + stderr)
else:
if expected_msg is None:
assert_msg = "bitcoind should have exited with an error"
else:
assert_msg = "bitcoind should have exited with expected error " + expected_msg
raise AssertionError(assert_msg)
def wait_for_node_exit(self, i, timeout):
self.bitcoind_processes[i].wait(timeout)
def split_network(self):
"""
@ -300,9 +369,9 @@ class BitcoinTestFramework(object):
args = [os.getenv("BITCOIND", "bitcoind"), "-server", "-keypool=1", "-datadir=" + datadir, "-discover=0"]
if i > 0:
args.append("-connect=127.0.0.1:" + str(p2p_port(0)))
bitcoind_processes[i] = subprocess.Popen(args)
self.bitcoind_processes[i] = subprocess.Popen(args)
self.log.debug("initialize_chain: bitcoind started, waiting for RPC to come up")
wait_for_bitcoind_start(bitcoind_processes[i], datadir, i)
self._wait_for_bitcoind_start(self.bitcoind_processes[i], datadir, i)
self.log.debug("initialize_chain: RPC successfully started")
self.nodes = []
@ -355,6 +424,30 @@ class BitcoinTestFramework(object):
for i in range(num_nodes):
initialize_datadir(test_dir, i)
def _wait_for_bitcoind_start(self, process, datadir, i, rpchost=None):
"""Wait for bitcoind to start.
This means that RPC is accessible and fully initialized.
Raise an exception if bitcoind exits during initialization."""
while True:
if process.poll() is not None:
raise Exception('bitcoind exited with status %i during initialization' % process.returncode)
try:
# Check if .cookie file to be created
rpc = get_rpc_proxy(rpc_url(datadir, i, rpchost), i, coveragedir=self.options.coveragedir)
rpc.getblockcount()
break # break out of loop on success
except IOError as e:
if e.errno != errno.ECONNREFUSED: # Port not yet open?
raise # unknown IO error
except JSONRPCException as e: # Initialization phase
if e.error['code'] != -28: # RPC in warmup?
raise # unknown JSON RPC exception
except ValueError as e: # cookie file not found and no rpcuser or rpcassword. bitcoind still starting
if "No RPC credentials" not in str(e):
raise
time.sleep(0.25)
class ComparisonTestFramework(BitcoinTestFramework):
"""Test framework for doing p2p comparison testing