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-rwxr-xr-xtest/functional/invalidateblock.py71
1 files changed, 71 insertions, 0 deletions
diff --git a/test/functional/invalidateblock.py b/test/functional/invalidateblock.py
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+++ b/test/functional/invalidateblock.py
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+#!/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 __init__(self):
+ super().__init__()
+ self.setup_clean_chain = True
+ self.num_nodes = 3
+
+ def setup_network(self):
+ self.nodes = []
+ self.is_network_split = False
+ self.nodes.append(start_node(0, self.options.tmpdir))
+ self.nodes.append(start_node(1, self.options.tmpdir))
+ self.nodes.append(start_node(2, self.options.tmpdir))
+
+ 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)
+ 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")
+ 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)
+
+if __name__ == '__main__':
+ InvalidateTest().main()