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#!/usr/bin/env python3
# Copyright (c) 2015-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test the ZMQ API."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
import zmq
import struct
class ZMQTest (BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 4
port = 28332
def setup_nodes(self):
self.zmqContext = zmq.Context()
self.zmqSubSocket = self.zmqContext.socket(zmq.SUB)
self.zmqSubSocket.setsockopt(zmq.SUBSCRIBE, b"hashblock")
self.zmqSubSocket.setsockopt(zmq.SUBSCRIBE, b"hashtx")
self.zmqSubSocket.connect("tcp://127.0.0.1:%i" % self.port)
return start_nodes(self.num_nodes, self.options.tmpdir, extra_args=[
['-zmqpubhashtx=tcp://127.0.0.1:'+str(self.port), '-zmqpubhashblock=tcp://127.0.0.1:'+str(self.port)],
[],
[],
[]
])
def run_test(self):
self.sync_all()
genhashes = self.nodes[0].generate(1)
self.sync_all()
print("listen...")
msg = self.zmqSubSocket.recv_multipart()
topic = msg[0]
assert_equal(topic, b"hashtx")
body = msg[1]
nseq = msg[2]
msgSequence = struct.unpack('<I', msg[-1])[-1]
assert_equal(msgSequence, 0) #must be sequence 0 on hashtx
msg = self.zmqSubSocket.recv_multipart()
topic = msg[0]
body = msg[1]
msgSequence = struct.unpack('<I', msg[-1])[-1]
assert_equal(msgSequence, 0) #must be sequence 0 on hashblock
blkhash = bytes_to_hex_str(body)
assert_equal(genhashes[0], blkhash) #blockhash from generate must be equal to the hash received over zmq
n = 10
genhashes = self.nodes[1].generate(n)
self.sync_all()
zmqHashes = []
blockcount = 0
for x in range(0,n*2):
msg = self.zmqSubSocket.recv_multipart()
topic = msg[0]
body = msg[1]
if topic == b"hashblock":
zmqHashes.append(bytes_to_hex_str(body))
msgSequence = struct.unpack('<I', msg[-1])[-1]
assert_equal(msgSequence, blockcount+1)
blockcount += 1
for x in range(0,n):
assert_equal(genhashes[x], zmqHashes[x]) #blockhash from generate must be equal to the hash received over zmq
#test tx from a second node
hashRPC = self.nodes[1].sendtoaddress(self.nodes[0].getnewaddress(), 1.0)
self.sync_all()
# now we should receive a zmq msg because the tx was broadcast
msg = self.zmqSubSocket.recv_multipart()
topic = msg[0]
body = msg[1]
hashZMQ = ""
if topic == b"hashtx":
hashZMQ = bytes_to_hex_str(body)
msgSequence = struct.unpack('<I', msg[-1])[-1]
assert_equal(msgSequence, blockcount+1)
assert_equal(hashRPC, hashZMQ) #blockhash from generate must be equal to the hash received over zmq
if __name__ == '__main__':
ZMQTest ().main ()