dash/test/functional/rpc_invalidateblock.py
UdjinM6 7188004905
Fix two issues with ResetBlockFailureFlags, add tests (#3965)
* Merge #13199: Bugfix: ensure consistency of m_failed_blocks after reconsiderblock

11fa6bb66e Bugfix: ensure consistency of m_failed_blocks after reconsiderblock (Suhas Daftuar)

Pull request description:

  This was introduced in 015a5258ad and could cause a node to crash (due to assertion failure) when using the `reconsiderblock` rpc.

Tree-SHA512: 820dcd761bf983e36f5d0f16777ed75c833daaf62a6b3a4dbd17f6caaf9287223e3a202d06540ac62f8ba72926b73b0873bb76c6273ddcb19d9408f4c1cd325e

* bugfix: Mark all nearest BLOCK_FAILED_CHILD descendants (if any) as BLOCK_FAILED_VALID while removing the invalidity flag from all ancestors in ResetBlockFailureFlags

Fixes `Assertion failed: ((pindex->nStatus & BLOCK_FAILED_MASK) == 0), function CheckBlockIndex`

* tests: Make sure ResetBlockFailureFlags does the job correctly

* Wait for the expected block height, check the final chain tip hash

Co-authored-by: Pieter Wuille <pieter.wuille@gmail.com>
2021-02-01 11:15:46 -05:00

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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 invalidateblock RPC."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
class InvalidateTest(BitcoinTestFramework):
def set_test_params(self):
self.setup_clean_chain = True
self.num_nodes = 3
def setup_network(self):
self.setup_nodes()
def run_test(self):
self.log.info("Make sure we repopulate setBlockIndexCandidates after InvalidateBlock:")
self.log.info("Mine 4 blocks on Node 0")
self.nodes[0].generate(4)
assert(self.nodes[0].getblockcount() == 4)
besthash = self.nodes[0].getbestblockhash()
self.log.info("Mine competing 6 blocks on Node 1")
self.nodes[1].generate(6)
assert(self.nodes[1].getblockcount() == 6)
self.log.info("Connect nodes to force a reorg")
connect_nodes_bi(self.nodes,0,1)
self.sync_blocks(self.nodes[0:2])
assert(self.nodes[0].getblockcount() == 6)
badhash = self.nodes[1].getblockhash(2)
self.log.info("Invalidate block 2 on node 0 and verify we reorg to node 0's original chain")
self.nodes[0].invalidateblock(badhash)
newheight = self.nodes[0].getblockcount()
newhash = self.nodes[0].getbestblockhash()
if (newheight != 4 or newhash != besthash):
raise AssertionError("Wrong tip for node0, hash %s, height %d"%(newhash,newheight))
self.log.info("Make sure we won't reorg to a lower work chain:")
connect_nodes_bi(self.nodes,1,2)
self.log.info("Sync node 2 to node 1 so both have 6 blocks")
self.sync_blocks(self.nodes[1:3])
assert(self.nodes[2].getblockcount() == 6)
self.log.info("Invalidate block 5 on node 1 so its tip is now at 4")
self.nodes[1].invalidateblock(self.nodes[1].getblockhash(5))
assert(self.nodes[1].getblockcount() == 4)
self.log.info("Invalidate block 3 on node 2, so its tip is now 2")
self.nodes[2].invalidateblock(self.nodes[2].getblockhash(3))
assert(self.nodes[2].getblockcount() == 2)
self.log.info("..and then mine a block")
self.nodes[2].generate(1)
self.log.info("Verify all nodes are at the right height")
time.sleep(5)
assert_equal(self.nodes[2].getblockcount(), 3)
assert_equal(self.nodes[0].getblockcount(), 4)
node1height = self.nodes[1].getblockcount()
if node1height < 4:
raise AssertionError("Node 1 reorged to a lower height: %d"%node1height)
self.log.info("Make sure ResetBlockFailureFlags does the job correctly")
self.restart_node(0, extra_args=["-checkblocks=5"])
self.restart_node(1, extra_args=["-checkblocks=5"])
connect_nodes_bi(self.nodes, 0, 1)
self.nodes[0].generate(10)
self.sync_blocks(self.nodes[0:2])
newheight = self.nodes[0].getblockcount()
for j in range(2):
self.restart_node(0, extra_args=["-checkblocks=5"])
tip = self.nodes[0].generate(10)[-1]
self.nodes[1].generate(9)
connect_nodes(self.nodes[0], 1)
self.sync_blocks(self.nodes[0:2])
assert_equal(self.nodes[0].getblockcount(), newheight + 10 * (j + 1))
assert_equal(self.nodes[1].getblockcount(), newheight + 10 * (j + 1))
assert_equal(self.nodes[1].getbestblockhash(), tip)
tip = self.nodes[1].getbestblockhash()
self.nodes[1].invalidateblock(self.nodes[1].getblockhash(newheight + 1))
self.nodes[1].invalidateblock(self.nodes[1].getblockhash(newheight + 1))
assert_equal(self.nodes[1].getblockcount(), newheight)
self.restart_node(1, extra_args=["-checkblocks=5"])
wait_until(lambda: self.nodes[1].getblockcount() == newheight + 20)
assert_equal(tip, self.nodes[1].getbestblockhash())
if __name__ == '__main__':
InvalidateTest().main()