diff --git a/test/functional/test_framework/test_framework.py b/test/functional/test_framework/test_framework.py index 2187bf5f5..aa674f9eb 100755 --- a/test/functional/test_framework/test_framework.py +++ b/test/functional/test_framework/test_framework.py @@ -29,7 +29,6 @@ from .util import ( disconnect_nodes, get_datadir_path, initialize_datadir, - p2p_port, sync_blocks, sync_mempools, ) @@ -468,35 +467,23 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass): def _initialize_chain(self): """Initialize a pre-mined blockchain for use by the test. - Create a cache of a 199-block-long chain (with wallet) for MAX_NODES + 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 - create_cache = False - for i in range(MAX_NODES): - if not os.path.isdir(get_datadir_path(self.options.cachedir, i)): - create_cache = True - break - if create_cache: - self.log.debug("Creating data directories from cached datadir") + if not os.path.isdir(cache_node_dir): + self.log.debug("Creating cache directory {}".format(cache_node_dir)) - # find and delete old cache directories if any exist - for i in range(MAX_NODES): - if os.path.isdir(get_datadir_path(self.options.cachedir, i)): - shutil.rmtree(get_datadir_path(self.options.cachedir, i)) - - # Create cache directories, run bitcoinds: - for i in range(MAX_NODES): - datadir = initialize_datadir(self.options.cachedir, i) - args = [self.options.bitcoind, "-datadir=" + datadir, '-disablewallet'] - if i > 0: - args.append("-connect=127.0.0.1:" + str(p2p_port(0))) - self.nodes.append(TestNode( - i, - get_datadir_path(self.options.cachedir, i), + initialize_datadir(self.options.cachedir, CACHE_NODE_ID) + self.nodes.append( + TestNode( + CACHE_NODE_ID, + cache_node_dir, extra_conf=["bind=127.0.0.1"], - extra_args=[], + extra_args=['-disablewallet'], rpchost=None, timewait=self.rpc_timeout, bitcoind=self.options.bitcoind, @@ -504,12 +491,10 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass): coverage_dir=None, cwd=self.options.tmpdir, )) - self.nodes[i].args = args - self.start_node(i) + self.start_node(CACHE_NODE_ID) # Wait for RPC connections to be ready - for node in self.nodes: - node.wait_for_rpc_connection() + 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. @@ -518,29 +503,29 @@ class BitcoinTestFramework(metaclass=BitcoinTestMetaClass): # 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[0].generatetoaddress(25 if i != 7 else 24, self.nodes[i % 4].get_deterministic_priv_key().address) - self.sync_blocks() + self.nodes[CACHE_NODE_ID].generatetoaddress( + nblocks=25 if i != 7 else 24, + address=TestNode.PRIV_KEYS[i % 4].address, + ) - for n in self.nodes: - assert_equal(n.getblockchaininfo()["blocks"], 199) + assert_equal(self.nodes[CACHE_NODE_ID].getblockchaininfo()["blocks"], 199) - # Shut them down, and clean up cache directories: + # Shut it down, and clean up cache directories: self.stop_nodes() self.nodes = [] - def cache_path(n, *paths): - return os.path.join(get_datadir_path(self.options.cachedir, n), "regtest", *paths) + def cache_path(*paths): + return os.path.join(cache_node_dir, "regtest", *paths) - for i in range(MAX_NODES): - os.rmdir(cache_path(i, 'wallets')) # Remove empty wallets dir - for entry in os.listdir(cache_path(i)): - if entry not in ['chainstate', 'blocks']: - os.remove(cache_path(i, entry)) + 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): - from_dir = get_datadir_path(self.options.cachedir, i) + self.log.debug("Copy cache directory {} to node {}".format(cache_node_dir, i)) to_dir = get_datadir_path(self.options.tmpdir, i) - shutil.copytree(from_dir, to_dir) + shutil.copytree(cache_node_dir, to_dir) initialize_datadir(self.options.tmpdir, i) # Overwrite port/rpcport in bitcoin.conf def _initialize_chain_clean(self): diff --git a/test/functional/test_framework/test_node.py b/test/functional/test_framework/test_node.py index 88a17afde..331137709 100755 --- a/test/functional/test_framework/test_node.py +++ b/test/functional/test_framework/test_node.py @@ -111,10 +111,8 @@ class TestNode(): self.p2ps = [] - def get_deterministic_priv_key(self): - """Return a deterministic priv key in base58, that only depends on the node's index""" - AddressKeyPair = collections.namedtuple('AddressKeyPair', ['address', 'key']) - PRIV_KEYS = [ + AddressKeyPair = collections.namedtuple('AddressKeyPair', ['address', 'key']) + PRIV_KEYS = [ # address , privkey AddressKeyPair('mjTkW3DjgyZck4KbiRusZsqTgaYTxdSz6z', 'cVpF924EspNh8KjYsfhgY96mmxvT6DgdWiTYMtMjuM74hJaU5psW'), AddressKeyPair('msX6jQXvxiNhx3Q62PKeLPrhrqZQdSimTg', 'cUxsWyKyZ9MAQTaAhUQWJmBbSvHMwSmuv59KgxQV7oZQU3PXN3KE'), @@ -128,9 +126,12 @@ class TestNode(): AddressKeyPair('mq4fBNdckGtvY2mijd9am7DRsbRB4KjUkf', 'cN55daf1HotwBAgAKWVgDcoppmUNDtQSfb7XLutTLeAgVc3u8hik'), AddressKeyPair('mpFAHDjX7KregM3rVotdXzQmkbwtbQEnZ6', 'cT7qK7g1wkYEMvKowd2ZrX1E5f6JQ7TM246UfqbCiyF7kZhorpX3'), AddressKeyPair('mzRe8QZMfGi58KyWCse2exxEFry2sfF2Y7', 'cPiRWE8KMjTRxH1MWkPerhfoHFn5iHPWVK5aPqjW8NxmdwenFinJ'), - ] - assert len(PRIV_KEYS) == MAX_NODES - return PRIV_KEYS[self.index] + ] + + def get_deterministic_priv_key(self): + """Return a deterministic priv key in base58, that only depends on the node's index""" + assert len(self.PRIV_KEYS) == MAX_NODES + return self.PRIV_KEYS[self.index] def get_mem_rss_kilobytes(self): """Get the memory usage (RSS) per `ps`.