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#!/usr/bin/env python3
# Copyright (c) 2014-2017 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 -alertnotify, -blocknotify and -walletnotify options."""
import os
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal, wait_until, connect_nodes_bi
class NotificationsTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
self.setup_clean_chain = True
def setup_network(self):
self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
self.block_filename = os.path.join(self.options.tmpdir, "blocks.txt")
self.tx_filename = os.path.join(self.options.tmpdir, "transactions.txt")
# -alertnotify and -blocknotify on node0, walletnotify on node1
self.extra_args = [["-blockversion=2",
"-alertnotify=echo %%s >> %s" % self.alert_filename,
"-blocknotify=echo %%s >> %s" % self.block_filename],
["-blockversion=211",
"-rescan",
"-walletnotify=echo %%s >> %s" % self.tx_filename]]
super().setup_network()
def run_test(self):
self.log.info("test -blocknotify")
block_count = 10
blocks = self.nodes[1].generate(block_count)
# wait at most 10 seconds for expected file size before reading the content
wait_until(lambda: os.path.isfile(self.block_filename) and os.stat(self.block_filename).st_size >= (block_count * 65), timeout=10)
# file content should equal the generated blocks hashes
with open(self.block_filename, 'r') as f:
assert_equal(sorted(blocks), sorted(l.strip() for l in f.read().splitlines()))
self.log.info("test -walletnotify")
# wait at most 10 seconds for expected file size before reading the content
wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
# file content should equal the generated transaction hashes
txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
with open(self.tx_filename, 'r') as f:
assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))
os.remove(self.tx_filename)
self.log.info("test -walletnotify after rescan")
# restart node to rescan to force wallet notifications
self.restart_node(1)
connect_nodes_bi(self.nodes, 0, 1)
wait_until(lambda: os.path.isfile(self.tx_filename) and os.stat(self.tx_filename).st_size >= (block_count * 65), timeout=10)
# file content should equal the generated transaction hashes
txids_rpc = list(map(lambda t: t['txid'], self.nodes[1].listtransactions("*", block_count)))
with open(self.tx_filename, 'r') as f:
assert_equal(sorted(txids_rpc), sorted(l.strip() for l in f.read().splitlines()))
# Mine another 41 up-version blocks. -alertnotify should trigger on the 51st.
self.log.info("test -alertnotify")
self.nodes[1].generate(41)
self.sync_all()
# Give bitcoind 10 seconds to write the alert notification
wait_until(lambda: os.path.isfile(self.alert_filename) and os.path.getsize(self.alert_filename), timeout=10)
with open(self.alert_filename, 'r', encoding='utf8') as f:
alert_text = f.read()
# Mine more up-version blocks, should not get more alerts:
self.nodes[1].generate(2)
self.sync_all()
with open(self.alert_filename, 'r', encoding='utf8') as f:
alert_text2 = f.read()
self.log.info("-alertnotify should not continue notifying for more unknown version blocks")
assert_equal(alert_text, alert_text2)
if __name__ == '__main__':
NotificationsTest().main()
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