diff options
Diffstat (limited to 'test/functional/interface_zmq.py')
| -rwxr-xr-x | test/functional/interface_zmq.py | 320 |
1 files changed, 311 insertions, 9 deletions
diff --git a/test/functional/interface_zmq.py b/test/functional/interface_zmq.py index ef4780cacb..17032a3b83 100755 --- a/test/functional/interface_zmq.py +++ b/test/functional/interface_zmq.py @@ -5,13 +5,24 @@ """Test the ZMQ notification interface.""" import struct -from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE +from test_framework.address import ADDRESS_BCRT1_UNSPENDABLE, ADDRESS_BCRT1_P2WSH_OP_TRUE +from test_framework.blocktools import create_block, create_coinbase, add_witness_commitment from test_framework.test_framework import BitcoinTestFramework -from test_framework.messages import CTransaction, hash256 -from test_framework.util import assert_equal, connect_nodes +from test_framework.messages import CTransaction, hash256, FromHex +from test_framework.util import ( + assert_equal, + connect_nodes, + assert_raises_rpc_error, +) from io import BytesIO from time import sleep +# Test may be skipped and not have zmq installed +try: + import zmq +except ImportError: + pass + def hash256_reversed(byte_str): return hash256(byte_str)[::-1] @@ -21,7 +32,6 @@ class ZMQSubscriber: self.socket = socket self.topic = topic - import zmq self.socket.setsockopt(zmq.SUBSCRIBE, self.topic) def receive(self): @@ -33,6 +43,22 @@ class ZMQSubscriber: self.sequence += 1 return body + def receive_sequence(self): + topic, body, seq = self.socket.recv_multipart() + # Topic should match the subscriber topic. + assert_equal(topic, self.topic) + # Sequence should be incremental. + assert_equal(struct.unpack('<I', seq)[-1], self.sequence) + self.sequence += 1 + hash = body[:32].hex() + label = chr(body[32]) + mempool_sequence = None if len(body) != 32+1+8 else struct.unpack("<Q", body[32+1:])[0] + if mempool_sequence is not None: + assert label == "A" or label == "R" + else: + assert label == "D" or label == "C" + return (hash, label, mempool_sequence) + class ZMQTest (BitcoinTestFramework): def set_test_params(self): @@ -43,10 +69,11 @@ class ZMQTest (BitcoinTestFramework): self.skip_if_no_bitcoind_zmq() def run_test(self): - import zmq self.ctx = zmq.Context() try: self.test_basic() + self.test_sequence() + self.test_mempool_sync() self.test_reorg() finally: # Destroy the ZMQ context. @@ -54,7 +81,6 @@ class ZMQTest (BitcoinTestFramework): self.ctx.destroy(linger=None) def test_basic(self): - import zmq # Invalid zmq arguments don't take down the node, see #17185. self.restart_node(0, ["-zmqpubrawtx=foo", "-zmqpubhashtx=bar"]) @@ -146,7 +172,6 @@ class ZMQTest (BitcoinTestFramework): self.log.info("Skipping reorg test because wallet is disabled") return - import zmq address = 'tcp://127.0.0.1:28333' services = [b"hashblock", b"hashtx"] @@ -177,8 +202,8 @@ class ZMQTest (BitcoinTestFramework): assert_equal(hashtx.receive().hex(), payment_txid) assert_equal(hashtx.receive().hex(), disconnect_cb) - # Generate 2 blocks in nodes[1] - connect_blocks = self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_UNSPENDABLE) + # Generate 2 blocks in nodes[1] to a different address to ensure split + connect_blocks = self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_P2WSH_OP_TRUE) # nodes[0] will reorg chain after connecting back nodes[1] connect_nodes(self.nodes[0], 1) @@ -204,5 +229,282 @@ class ZMQTest (BitcoinTestFramework): # And the current tip assert_equal(hashtx.receive().hex(), self.nodes[1].getblock(connect_blocks[0])["tx"][0]) + def test_sequence(self): + """ + Sequence zmq notifications give every blockhash and txhash in order + of processing, regardless of IBD, re-orgs, etc. + Format of messages: + <32-byte hash>C : Blockhash connected + <32-byte hash>D : Blockhash disconnected + <32-byte hash>R<8-byte LE uint> : Transactionhash removed from mempool for non-block inclusion reason + <32-byte hash>A<8-byte LE uint> : Transactionhash added mempool + """ + self.log.info("Testing 'sequence' publisher") + address = 'tcp://127.0.0.1:28333' + socket = self.ctx.socket(zmq.SUB) + socket.set(zmq.RCVTIMEO, 60000) + seq = ZMQSubscriber(socket, b'sequence') + + self.restart_node(0, ['-zmqpub%s=%s' % (seq.topic.decode(), address)]) + socket.connect(address) + # Relax so that the subscriber is ready before publishing zmq messages + sleep(0.2) + + # Mempool sequence number starts at 1 + seq_num = 1 + + # Generate 1 block in nodes[0] and receive all notifications + dc_block = self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE)[0] + + # Note: We are not notified of any block transactions, coinbase or mined + assert_equal((self.nodes[0].getbestblockhash(), "C", None), seq.receive_sequence()) + + # Generate 2 blocks in nodes[1] to a different address to ensure a chain split + self.nodes[1].generatetoaddress(2, ADDRESS_BCRT1_P2WSH_OP_TRUE) + + # nodes[0] will reorg chain after connecting back nodes[1] + connect_nodes(self.nodes[0], 1) + + # Then we receive all block (dis)connect notifications for the 2 block reorg + assert_equal((dc_block, "D", None), seq.receive_sequence()) + block_count = self.nodes[1].getblockcount() + assert_equal((self.nodes[1].getblockhash(block_count-1), "C", None), seq.receive_sequence()) + assert_equal((self.nodes[1].getblockhash(block_count), "C", None), seq.receive_sequence()) + + # Rest of test requires wallet functionality + if self.is_wallet_compiled(): + self.log.info("Wait for tx from second node") + payment_txid = self.nodes[1].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=5.0, replaceable=True) + self.sync_all() + self.log.info("Testing sequence notifications with mempool sequence values") + + # Should receive the broadcasted txid. + assert_equal((payment_txid, "A", seq_num), seq.receive_sequence()) + seq_num += 1 + + self.log.info("Testing RBF notification") + # Replace it to test eviction/addition notification + rbf_info = self.nodes[1].bumpfee(payment_txid) + self.sync_all() + assert_equal((payment_txid, "R", seq_num), seq.receive_sequence()) + seq_num += 1 + assert_equal((rbf_info["txid"], "A", seq_num), seq.receive_sequence()) + seq_num += 1 + + # Doesn't get published when mined, make a block and tx to "flush" the possibility + # though the mempool sequence number does go up by the number of transactions + # removed from the mempool by the block mining it. + mempool_size = len(self.nodes[0].getrawmempool()) + c_block = self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE)[0] + self.sync_all() + # Make sure the number of mined transactions matches the number of txs out of mempool + mempool_size_delta = mempool_size - len(self.nodes[0].getrawmempool()) + assert_equal(len(self.nodes[0].getblock(c_block)["tx"])-1, mempool_size_delta) + seq_num += mempool_size_delta + payment_txid_2 = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.0) + self.sync_all() + assert_equal((c_block, "C", None), seq.receive_sequence()) + assert_equal((payment_txid_2, "A", seq_num), seq.receive_sequence()) + seq_num += 1 + + # Spot check getrawmempool results that they only show up when asked for + assert type(self.nodes[0].getrawmempool()) is list + assert type(self.nodes[0].getrawmempool(mempool_sequence=False)) is list + assert "mempool_sequence" not in self.nodes[0].getrawmempool(verbose=True) + assert_raises_rpc_error(-8, "Verbose results cannot contain mempool sequence values.", self.nodes[0].getrawmempool, True, True) + assert_equal(self.nodes[0].getrawmempool(mempool_sequence=True)["mempool_sequence"], seq_num) + + self.log.info("Testing reorg notifications") + # Manually invalidate the last block to test mempool re-entry + # N.B. This part could be made more lenient in exact ordering + # since it greatly depends on inner-workings of blocks/mempool + # during "deep" re-orgs. Probably should "re-construct" + # blockchain/mempool state from notifications instead. + block_count = self.nodes[0].getblockcount() + best_hash = self.nodes[0].getbestblockhash() + self.nodes[0].invalidateblock(best_hash) + sleep(2) # Bit of room to make sure transaction things happened + + # Make sure getrawmempool mempool_sequence results aren't "queued" but immediately reflective + # of the time they were gathered. + assert self.nodes[0].getrawmempool(mempool_sequence=True)["mempool_sequence"] > seq_num + + assert_equal((best_hash, "D", None), seq.receive_sequence()) + assert_equal((rbf_info["txid"], "A", seq_num), seq.receive_sequence()) + seq_num += 1 + + # Other things may happen but aren't wallet-deterministic so we don't test for them currently + self.nodes[0].reconsiderblock(best_hash) + self.nodes[1].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE) + self.sync_all() + + self.log.info("Evict mempool transaction by block conflict") + orig_txid = self.nodes[0].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=1.0, replaceable=True) + + # More to be simply mined + more_tx = [] + for _ in range(5): + more_tx.append(self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), 0.1)) + + raw_tx = self.nodes[0].getrawtransaction(orig_txid) + bump_info = self.nodes[0].bumpfee(orig_txid) + # Mine the pre-bump tx + block = create_block(int(self.nodes[0].getbestblockhash(), 16), create_coinbase(self.nodes[0].getblockcount()+1)) + tx = FromHex(CTransaction(), raw_tx) + block.vtx.append(tx) + for txid in more_tx: + tx = FromHex(CTransaction(), self.nodes[0].getrawtransaction(txid)) + block.vtx.append(tx) + add_witness_commitment(block) + block.solve() + assert_equal(self.nodes[0].submitblock(block.serialize().hex()), None) + tip = self.nodes[0].getbestblockhash() + assert_equal(int(tip, 16), block.sha256) + orig_txid_2 = self.nodes[0].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=1.0, replaceable=True) + + # Flush old notifications until evicted tx original entry + (hash_str, label, mempool_seq) = seq.receive_sequence() + while hash_str != orig_txid: + (hash_str, label, mempool_seq) = seq.receive_sequence() + mempool_seq += 1 + + # Added original tx + assert_equal(label, "A") + # More transactions to be simply mined + for i in range(len(more_tx)): + assert_equal((more_tx[i], "A", mempool_seq), seq.receive_sequence()) + mempool_seq += 1 + # Bumped by rbf + assert_equal((orig_txid, "R", mempool_seq), seq.receive_sequence()) + mempool_seq += 1 + assert_equal((bump_info["txid"], "A", mempool_seq), seq.receive_sequence()) + mempool_seq += 1 + # Conflict announced first, then block + assert_equal((bump_info["txid"], "R", mempool_seq), seq.receive_sequence()) + mempool_seq += 1 + assert_equal((tip, "C", None), seq.receive_sequence()) + mempool_seq += len(more_tx) + # Last tx + assert_equal((orig_txid_2, "A", mempool_seq), seq.receive_sequence()) + mempool_seq += 1 + self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE) + self.sync_all() # want to make sure we didn't break "consensus" for other tests + + def test_mempool_sync(self): + """ + Use sequence notification plus getrawmempool sequence results to "sync mempool" + """ + if not self.is_wallet_compiled(): + self.log.info("Skipping mempool sync test") + return + + self.log.info("Testing 'mempool sync' usage of sequence notifier") + address = 'tcp://127.0.0.1:28333' + socket = self.ctx.socket(zmq.SUB) + socket.set(zmq.RCVTIMEO, 60000) + seq = ZMQSubscriber(socket, b'sequence') + + self.restart_node(0, ['-zmqpub%s=%s' % (seq.topic.decode(), address)]) + connect_nodes(self.nodes[0], 1) + socket.connect(address) + # Relax so that the subscriber is ready before publishing zmq messages + sleep(0.2) + + # In-memory counter, should always start at 1 + next_mempool_seq = self.nodes[0].getrawmempool(mempool_sequence=True)["mempool_sequence"] + assert_equal(next_mempool_seq, 1) + + # Some transactions have been happening but we aren't consuming zmq notifications yet + # or we lost a ZMQ message somehow and want to start over + txids = [] + num_txs = 5 + for _ in range(num_txs): + txids.append(self.nodes[1].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=1.0, replaceable=True)) + self.sync_all() + + # 1) Consume backlog until we get a mempool sequence number + (hash_str, label, zmq_mem_seq) = seq.receive_sequence() + while zmq_mem_seq is None: + (hash_str, label, zmq_mem_seq) = seq.receive_sequence() + + assert label == "A" or label == "R" + assert hash_str is not None + + # 2) We need to "seed" our view of the mempool + mempool_snapshot = self.nodes[0].getrawmempool(mempool_sequence=True) + mempool_view = set(mempool_snapshot["txids"]) + get_raw_seq = mempool_snapshot["mempool_sequence"] + assert_equal(get_raw_seq, 6) + # Snapshot may be too old compared to zmq message we read off latest + while zmq_mem_seq >= get_raw_seq: + sleep(2) + mempool_snapshot = self.nodes[0].getrawmempool(mempool_sequence=True) + mempool_view = set(mempool_snapshot["txids"]) + get_raw_seq = mempool_snapshot["mempool_sequence"] + + # Things continue to happen in the "interim" while waiting for snapshot results + # We have node 0 do all these to avoid p2p races with RBF announcements + for _ in range(num_txs): + txids.append(self.nodes[0].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=0.1, replaceable=True)) + self.nodes[0].bumpfee(txids[-1]) + self.sync_all() + self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE) + final_txid = self.nodes[0].sendtoaddress(address=self.nodes[0].getnewaddress(), amount=0.1, replaceable=True) + + # 3) Consume ZMQ backlog until we get to "now" for the mempool snapshot + while True: + if zmq_mem_seq == get_raw_seq - 1: + break + (hash_str, label, mempool_sequence) = seq.receive_sequence() + if mempool_sequence is not None: + zmq_mem_seq = mempool_sequence + if zmq_mem_seq > get_raw_seq: + raise Exception("We somehow jumped mempool sequence numbers! zmq_mem_seq: {} > get_raw_seq: {}".format(zmq_mem_seq, get_raw_seq)) + + # 4) Moving forward, we apply the delta to our local view + # remaining txs(5) + 1 rbf(A+R) + 1 block connect + 1 final tx + expected_sequence = get_raw_seq + r_gap = 0 + for _ in range(num_txs + 2 + 1 + 1): + (hash_str, label, mempool_sequence) = seq.receive_sequence() + if mempool_sequence is not None: + if mempool_sequence != expected_sequence: + # Detected "R" gap, means this a conflict eviction, and mempool tx are being evicted before its + # position in the incoming block message "C" + if label == "R": + assert mempool_sequence > expected_sequence + r_gap += mempool_sequence - expected_sequence + else: + raise Exception("WARNING: txhash has unexpected mempool sequence value: {} vs expected {}".format(mempool_sequence, expected_sequence)) + if label == "A": + assert hash_str not in mempool_view + mempool_view.add(hash_str) + expected_sequence = mempool_sequence + 1 + elif label == "R": + assert hash_str in mempool_view + mempool_view.remove(hash_str) + expected_sequence = mempool_sequence + 1 + elif label == "C": + # (Attempt to) remove all txids from known block connects + block_txids = self.nodes[0].getblock(hash_str)["tx"][1:] + for txid in block_txids: + if txid in mempool_view: + expected_sequence += 1 + mempool_view.remove(txid) + expected_sequence -= r_gap + r_gap = 0 + elif label == "D": + # Not useful for mempool tracking per se + continue + else: + raise Exception("Unexpected ZMQ sequence label!") + + assert_equal(self.nodes[0].getrawmempool(), [final_txid]) + assert_equal(self.nodes[0].getrawmempool(mempool_sequence=True)["mempool_sequence"], expected_sequence) + + # 5) If you miss a zmq/mempool sequence number, go back to step (2) + + self.nodes[0].generatetoaddress(1, ADDRESS_BCRT1_UNSPENDABLE) + if __name__ == '__main__': ZMQTest().main() |