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#!/usr/bin/env python2 | ||
# Copyright (c) 2014 The Bitcoin Core developers | ||
# Distributed under the MIT software license, see the accompanying | ||
# file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||
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# | ||
# Test InvalidateBlock code | ||
# | ||
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from test_framework import BitcoinTestFramework | ||
from bitcoinrpc.authproxy import AuthServiceProxy, JSONRPCException | ||
from util import * | ||
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class InvalidateTest(BitcoinTestFramework): | ||
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def setup_chain(self): | ||
print("Initializing test directory "+self.options.tmpdir) | ||
initialize_chain_clean(self.options.tmpdir, 2) | ||
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def setup_network(self): | ||
self.nodes = [] | ||
self.is_network_split = False | ||
self.nodes.append(start_node(0, self.options.tmpdir, ["-debug"])) | ||
self.nodes.append(start_node(1, self.options.tmpdir, ["-debug"])) | ||
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def run_test(self): | ||
print "Mine 4 blocks on Node 0" | ||
self.nodes[0].setgenerate(True, 4) | ||
assert(self.nodes[0].getblockcount() == 4) | ||
besthash = self.nodes[0].getbestblockhash() | ||
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print "Mine competing 6 blocks on Node 1" | ||
self.nodes[1].setgenerate(True, 6) | ||
assert(self.nodes[1].getblockcount() == 6) | ||
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print "Connect nodes to force a reorg" | ||
connect_nodes_bi(self.nodes,0,1) | ||
sync_blocks(self.nodes) | ||
assert(self.nodes[0].getblockcount() == 6) | ||
badhash = self.nodes[1].getblockhash(2) | ||
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print "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)) | ||
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if __name__ == '__main__': | ||
InvalidateTest().main() |