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Merge #10171: [tests] Add node methods to test framework 

4550049 Reorganize BitcoinTestFramework class (John Newbery)
b7dd44c Add start and stop node methods to BitcoinTestFramework (John Newbery)
b111324 move initialize_chain() and initialize_chain_clean() to be methods of BitcoinTestFramework (John Newbery)

Tree-SHA512: 17e541aea8ca4c0d1189701499384e26239e2d5905de8adb0f042d3cf4c0bbed79fcaad61d563e1743bf4c62ad4915cebb4714783db839d9c53dfbbedcae6e9a
0.15
MarcoFalke 8 years ago
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750c5a5b84 4550049903
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2 changed files with 169 additions and 125 deletions
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  1. 213
      test/functional/test_framework/test_framework.py
  2. 81
      test/functional/test_framework/util.py

213
test/functional/test_framework/test_framework.py
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@ -8,28 +8,55 @@ from collections import deque @@ -8,28 +8,55 @@ from collections import deque
import logging
import optparse
import os
import sys
import shutil
import subprocess
import sys
import tempfile
import time
from .util import (
initialize_chain,
start_nodes,
PortSeed,
MAX_NODES,
bitcoind_processes,
check_json_precision,
connect_nodes_bi,
disable_mocktime,
disconnect_nodes,
enable_coverage,
enable_mocktime,
get_mocktime,
get_rpc_proxy,
initialize_datadir,
log_filename,
p2p_port,
rpc_url,
set_node_times,
start_node,
start_nodes,
stop_node,
stop_nodes,
sync_blocks,
sync_mempools,
stop_nodes,
stop_node,
enable_coverage,
check_json_precision,
initialize_chain_clean,
PortSeed,
wait_for_bitcoind_start,
)
from .authproxy import JSONRPCException
class BitcoinTestFramework(object):
"""Base class for a bitcoin test script.
Individual bitcoin test scripts should subclass this class and override the following methods:
- __init__()
- add_options()
- setup_chain()
- setup_network()
- run_test()
The main() method should not be overridden.
This class also contains various public and private helper methods."""
# Methods to override in subclass test scripts.
TEST_EXIT_PASSED = 0
TEST_EXIT_FAILED = 1
@ -40,27 +67,15 @@ class BitcoinTestFramework(object): @@ -40,27 +67,15 @@ class BitcoinTestFramework(object):
self.setup_clean_chain = False
self.nodes = None
def run_test(self):
raise NotImplementedError
def add_options(self, parser):
pass
def setup_chain(self):
self.log.info("Initializing test directory "+self.options.tmpdir)
if self.setup_clean_chain:
initialize_chain_clean(self.options.tmpdir, self.num_nodes)
self._initialize_chain_clean(self.options.tmpdir, self.num_nodes)
else:
initialize_chain(self.options.tmpdir, self.num_nodes, self.options.cachedir)
def stop_node(self, num_node):
stop_node(self.nodes[num_node], num_node)
def setup_nodes(self):
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._initialize_chain(self.options.tmpdir, self.num_nodes, self.options.cachedir)
def setup_network(self):
self.setup_nodes()
@ -72,27 +87,16 @@ class BitcoinTestFramework(object): @@ -72,27 +87,16 @@ class BitcoinTestFramework(object):
connect_nodes_bi(self.nodes, i, i + 1)
self.sync_all()
def split_network(self):
"""
Split the network of four nodes into nodes 0/1 and 2/3.
"""
disconnect_nodes(self.nodes[1], 2)
disconnect_nodes(self.nodes[2], 1)
self.sync_all([self.nodes[:2], self.nodes[2:]])
def sync_all(self, node_groups=None):
if not node_groups:
node_groups = [self.nodes]
def setup_nodes(self):
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)
[sync_blocks(group) for group in node_groups]
[sync_mempools(group) for group in node_groups]
def run_test(self):
raise NotImplementedError
def join_network(self):
"""
Join the (previously split) network halves together.
"""
connect_nodes_bi(self.nodes, 1, 2)
self.sync_all()
# Main function. This should not be overridden by the subclass test scripts.
def main(self):
@ -156,7 +160,7 @@ class BitcoinTestFramework(object): @@ -156,7 +160,7 @@ class BitcoinTestFramework(object):
if not self.options.noshutdown:
self.log.info("Stopping nodes")
stop_nodes(self.nodes)
self.stop_nodes()
else:
self.log.info("Note: bitcoinds were not stopped and may still be running")
@ -190,6 +194,45 @@ class BitcoinTestFramework(object): @@ -190,6 +194,45 @@ class BitcoinTestFramework(object):
logging.shutdown()
sys.exit(self.TEST_EXIT_FAILED)
# 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)
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)
def stop_node(self, num_node):
stop_node(self.nodes[num_node], num_node)
def stop_nodes(self):
stop_nodes(self.nodes)
def split_network(self):
"""
Split the network of four nodes into nodes 0/1 and 2/3.
"""
disconnect_nodes(self.nodes[1], 2)
disconnect_nodes(self.nodes[2], 1)
self.sync_all([self.nodes[:2], self.nodes[2:]])
def join_network(self):
"""
Join the (previously split) network halves together.
"""
connect_nodes_bi(self.nodes, 1, 2)
self.sync_all()
def sync_all(self, node_groups=None):
if not node_groups:
node_groups = [self.nodes]
for group in node_groups:
sync_blocks(group)
sync_mempools(group)
# 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')
@ -218,6 +261,88 @@ class BitcoinTestFramework(object): @@ -218,6 +261,88 @@ class BitcoinTestFramework(object):
rpc_handler.setLevel(logging.DEBUG)
rpc_logger.addHandler(rpc_handler)
def _initialize_chain(self, test_dir, num_nodes, cachedir):
"""Initialize a pre-mined blockchain for use by the test.
Create a cache of a 200-block-long chain (with wallet) for MAX_NODES
Afterward, create num_nodes copies from the cache."""
assert num_nodes <= MAX_NODES
create_cache = False
for i in range(MAX_NODES):
if not os.path.isdir(os.path.join(cachedir, 'node' + str(i))):
create_cache = True
break
if create_cache:
self.log.debug("Creating data directories from cached datadir")
# find and delete old cache directories if any exist
for i in range(MAX_NODES):
if os.path.isdir(os.path.join(cachedir, "node" + str(i))):
shutil.rmtree(os.path.join(cachedir, "node" + str(i)))
# Create cache directories, run bitcoinds:
for i in range(MAX_NODES):
datadir = initialize_datadir(cachedir, i)
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.log.debug("initialize_chain: bitcoind started, waiting for RPC to come up")
wait_for_bitcoind_start(bitcoind_processes[i], rpc_url(i), i)
self.log.debug("initialize_chain: RPC successfully started")
self.nodes = []
for i in range(MAX_NODES):
try:
self.nodes.append(get_rpc_proxy(rpc_url(i), i))
except:
self.log.exception("Error connecting to node %d" % i)
sys.exit(1)
# Create a 200-block-long chain; each of the 4 first nodes
# gets 25 mature blocks and 25 immature.
# Note: To preserve compatibility with older versions of
# initialize_chain, only 4 nodes will generate coins.
#
# blocks are created with timestamps 10 minutes apart
# starting from 2010 minutes in the past
enable_mocktime()
block_time = get_mocktime() - (201 * 10 * 60)
for i in range(2):
for peer in range(4):
for j in range(25):
set_node_times(self.nodes, block_time)
self.nodes[peer].generate(1)
block_time += 10 * 60
# Must sync before next peer starts generating blocks
sync_blocks(self.nodes)
# Shut them down, and clean up cache directories:
self.stop_nodes()
self.nodes = []
disable_mocktime()
for i in range(MAX_NODES):
os.remove(log_filename(cachedir, i, "debug.log"))
os.remove(log_filename(cachedir, i, "db.log"))
os.remove(log_filename(cachedir, i, "peers.dat"))
os.remove(log_filename(cachedir, i, "fee_estimates.dat"))
for i in range(num_nodes):
from_dir = os.path.join(cachedir, "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 _initialize_chain_clean(self, test_dir, num_nodes):
"""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(num_nodes):
initialize_datadir(test_dir, i)
# Test framework for doing p2p comparison testing, which sets up some bitcoind
# binaries:
# 1 binary: test binary
@ -240,7 +365,7 @@ class ComparisonTestFramework(BitcoinTestFramework): @@ -240,7 +365,7 @@ class ComparisonTestFramework(BitcoinTestFramework):
help="bitcoind binary to use for reference nodes (if any)")
def setup_network(self):
self.nodes = start_nodes(
self.nodes = self.start_nodes(
self.num_nodes, self.options.tmpdir,
extra_args=[['-whitelist=127.0.0.1']] * self.num_nodes,
binary=[self.options.testbinary] +

81
test/functional/test_framework/util.py
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@ -226,87 +226,6 @@ def wait_for_bitcoind_start(process, url, i): @@ -226,87 +226,6 @@ def wait_for_bitcoind_start(process, url, i):
raise # unknown JSON RPC exception
time.sleep(0.25)
def initialize_chain(test_dir, num_nodes, cachedir):
"""
Create a cache of a 200-block-long chain (with wallet) for MAX_NODES
Afterward, create num_nodes copies from the cache
"""
assert num_nodes <= MAX_NODES
create_cache = False
for i in range(MAX_NODES):
if not os.path.isdir(os.path.join(cachedir, 'node'+str(i))):
create_cache = True
break
if create_cache:
logger.debug("Creating data directories from cached datadir")
#find and delete old cache directories if any exist
for i in range(MAX_NODES):
if os.path.isdir(os.path.join(cachedir,"node"+str(i))):
shutil.rmtree(os.path.join(cachedir,"node"+str(i)))
# Create cache directories, run bitcoinds:
for i in range(MAX_NODES):
datadir=initialize_datadir(cachedir, i)
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)
logger.debug("initialize_chain: bitcoind started, waiting for RPC to come up")
wait_for_bitcoind_start(bitcoind_processes[i], rpc_url(i), i)
logger.debug("initialize_chain: RPC successfully started")
rpcs = []
for i in range(MAX_NODES):
try:
rpcs.append(get_rpc_proxy(rpc_url(i), i))
except:
sys.stderr.write("Error connecting to "+url+"\n")
sys.exit(1)
# Create a 200-block-long chain; each of the 4 first nodes
# gets 25 mature blocks and 25 immature.
# Note: To preserve compatibility with older versions of
# initialize_chain, only 4 nodes will generate coins.
#
# blocks are created with timestamps 10 minutes apart
# starting from 2010 minutes in the past
enable_mocktime()
block_time = get_mocktime() - (201 * 10 * 60)
for i in range(2):
for peer in range(4):
for j in range(25):
set_node_times(rpcs, block_time)
rpcs[peer].generate(1)
block_time += 10*60
# Must sync before next peer starts generating blocks
sync_blocks(rpcs)
# Shut them down, and clean up cache directories:
stop_nodes(rpcs)
disable_mocktime()
for i in range(MAX_NODES):
os.remove(log_filename(cachedir, i, "debug.log"))
os.remove(log_filename(cachedir, i, "db.log"))
os.remove(log_filename(cachedir, i, "peers.dat"))
os.remove(log_filename(cachedir, i, "fee_estimates.dat"))
for i in range(num_nodes):
from_dir = os.path.join(cachedir, "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 initialize_chain_clean(test_dir, num_nodes):
"""
Create an empty blockchain and num_nodes wallets.
Useful if a test case wants complete control over initialization.
"""
for i in range(num_nodes):
datadir=initialize_datadir(test_dir, i)
def start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary=None, stderr=None):
"""

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