dash/test/functional/getchaintips.py
MarcoFalke 7c47cae060
Merge #10198: [tests] Remove is_network_split from functional test framework
c9cc76d [tests] Remove is_network_split from funtional test cases (John Newbery)

Tree-SHA512: a43ec63a7dc20cbe9048f8d3af755aef55e9247f605d6481e6d665112882a749af7514f29c83ca9d761421b8e0f7282e5b9f8fc471985d222de826da7cc80ccf
Signed-off-by: Pasta <pasta@dashboost.org>
2019-06-19 08:20:15 -05:00

69 lines
2.4 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 getchaintips RPC.
- introduce a network split
- work on chains of different lengths
- join the network together again
- verify that getchaintips now returns two chain tips.
"""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_equal
class GetChainTipsTest (BitcoinTestFramework):
def __init__(self):
super().__init__()
self.num_nodes = 4
self.setup_clean_chain = False
def run_test (self):
tips = self.nodes[0].getchaintips ()
assert_equal (len (tips), 1)
assert_equal (tips[0]['branchlen'], 0)
assert_equal (tips[0]['height'], 200)
assert_equal (tips[0]['status'], 'active')
# Split the network and build two chains of different lengths.
self.split_network ()
self.nodes[0].generate(10)
self.nodes[2].generate(20)
self.sync_all([self.nodes[:2], self.nodes[2:]])
tips = self.nodes[1].getchaintips ()
assert_equal (len (tips), 1)
shortTip = tips[0]
assert_equal (shortTip['branchlen'], 0)
assert_equal (shortTip['height'], 210)
assert_equal (tips[0]['status'], 'active')
tips = self.nodes[3].getchaintips ()
assert_equal (len (tips), 1)
longTip = tips[0]
assert_equal (longTip['branchlen'], 0)
assert_equal (longTip['height'], 220)
assert_equal (tips[0]['status'], 'active')
# Join the network halves and check that we now have two tips
# (at least at the nodes that previously had the short chain).
self.join_network ()
tips = self.nodes[0].getchaintips ()
assert_equal (len (tips), 2)
assert_equal (tips[0], longTip)
assert_equal (tips[1]['branchlen'], 10)
assert_equal (tips[1]['status'], 'valid-fork')
# We already checked that the long tip is the active one,
# update data to verify that the short tip matches the expected one.
tips[1]['branchlen'] = 0
tips[1]['status'] = 'active'
tips[1]['forkpoint'] = tips[1]['hash']
assert_equal (tips[1], shortTip)
if __name__ == '__main__':
GetChainTipsTest ().main ()