dash/test/functional/getchaintips.py
Alexander Block 54198ce739
Backport bitcoin#15773: test: Add BitcoinTestFramework::sync_* methods (incomplete backport) (#3409)
* scripted-diff: Rename sync_blocks to send_blocks to avoid name collisions and confusion

-BEGIN VERIFY SCRIPT-
FILE_LIST=$(git grep -l 'def sync_blocks' ./test/functional/*.py)
sed -i -e 's/def sync_blocks/def send_blocks/g'   $FILE_LIST
sed -i -e 's/self.sync_blocks/self.send_blocks/g' $FILE_LIST
-END VERIFY SCRIPT-

* test: Pass at most one node group to sync_all

* test: Add BitcoinTestFramework::sync_* methods

* Move bumping of mocktime into BitcoinTestFramework.sync_mempool

Instead of doing it in every place it's needed

* scripted-diff: use self.sync_* methods

-BEGIN VERIFY SCRIPT-
sed -i -e 's/sync_blocks(self.nodes)/self.sync_blocks()/g'     $(git grep -l 'sync_blocks(self.nodes)'   ./test/functional/*.py)
sed -i -e 's/sync_mempools(self.nodes)/self.sync_mempools()/g' $(git grep -l 'sync_mempools(self.nodes)' ./test/functional/*.py)

sed -i -e 's/  sync_blocks(/  self.sync_blocks(/g'     $(git grep -l sync_blocks   ./test/functional/*.py)
sed -i -e 's/  sync_mempools(/  self.sync_mempools(/g' $(git grep -l sync_mempools ./test/functional/*.py)
-END VERIFY SCRIPT-

* Pass nodes into bump_mocktime

Co-authored-by: MarcoFalke <falke.marco@gmail.com>
2020-04-14 13:00:16 +03:00

67 lines
2.3 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 set_test_params(self):
self.num_nodes = 4
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.sync_all(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 ()