neobytes/test/functional/forknotify.py
MarcoFalke 17bb230d74 Merge #11121: TestNode tidyups
7148b74dc [tests] Functional tests must explicitly set num_nodes (John Newbery)
5448a1471 [tests] don't override __init__() in individual tests (John Newbery)
6cf094a02 [tests] Avoid passing around member variables in test_framework (John Newbery)
36b626867 [tests] TestNode: separate add_node from start_node (John Newbery)
be2a2ab6a [tests] fix - use rpc_timeout as rpc timeout (John Newbery)

Pull request description:

  Some additional tidyups after the introduction of TestNode:

  - commit 1 makes TestNode use the correct rpc timeout. This should have been included in #11077
  - commit 2 separates `add_node()` from `start_node()` as originally discussed here: https://github.com/bitcoin/bitcoin/pull/10556#discussion_r121161453 with @kallewoof . The test writer no longer needs to assign to `self.nodes` when starting/stopping nodes.
  - commit 3 adds a `set_test_params()` method, so individual tests don't need to override `__init__()` and call `super().__init__()`

Tree-SHA512: 0adb030623b96675b5c29e2890ce99ccd837ed05f721d0c91b35378c5ac01b6658174aac12f1f77402e1d38b61f39b3c43b4df85c96952565dde1cda05b0db84
2019-09-24 16:58:03 +02:00

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2.1 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2014-2016 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 -alertnotify option."""
import os
import time
from test_framework.test_framework import BitcoinTestFramework
class ForkNotifyTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 2
def setup_network(self):
self.alert_filename = os.path.join(self.options.tmpdir, "alert.txt")
with open(self.alert_filename, 'w', encoding='utf8'):
pass # Just open then close to create zero-length file
self.extra_args = [["-blockversion=2", "-alertnotify=echo %s >> \"" + self.alert_filename + "\""],
["-blockversion=211"]]
super().setup_network()
def run_test(self):
# Mine 51 up-version blocks
self.nodes[1].generate(51)
self.sync_all()
# -alertnotify should trigger on the 51'st,
# but mine and sync another to give
# -alertnotify time to write
self.nodes[1].generate(1)
self.sync_all()
# Give bitcoind 10 seconds to write the alert notification
timeout = 10.0
while timeout > 0:
if os.path.exists(self.alert_filename) and os.path.getsize(self.alert_filename):
break
time.sleep(0.1)
timeout -= 0.1
else:
assert False, "-alertnotify did not warn of up-version blocks"
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(1)
self.sync_all()
self.nodes[1].generate(1)
self.sync_all()
with open(self.alert_filename, 'r', encoding='utf8') as f:
alert_text2 = f.read()
if alert_text != alert_text2:
raise AssertionError("-alertnotify excessive warning of up-version blocks")
if __name__ == '__main__':
ForkNotifyTest().main()