be16f80abc
Any projects which want to use Hush code from now on will need to be licensed as GPLv3 or we will send the lawyers: https://www.softwarefreedom.org/ Notably, Komodo (KMD) is licensed as GPLv2 and is no longer compatible to receive code changes, without causing legal issues. MIT projects, such as Zcash, also cannot pull in changes from the Hush Full Node without permission from The Hush Developers, which may in some circumstances grant an MIT license on a case-by-case basis.
77 lines
3.1 KiB
Python
Executable File
77 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python2
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# Copyright (c) 2014 The Bitcoin Core developers
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# Distributed under the GPLv3 software license, see the accompanying
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# file COPYING or https://www.gnu.org/licenses/gpl-3.0.en.html
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#
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# Test InvalidateBlock code
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#
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import initialize_chain_clean, start_node, \
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connect_nodes_bi, sync_blocks
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import time
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class InvalidateTest(BitcoinTestFramework):
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def setup_chain(self):
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print("Initializing test directory "+self.options.tmpdir)
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initialize_chain_clean(self.options.tmpdir, 3)
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def setup_network(self):
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self.nodes = []
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self.is_network_split = False
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self.nodes.append(start_node(0, self.options.tmpdir, ["-debug"]))
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self.nodes.append(start_node(1, self.options.tmpdir, ["-debug"]))
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self.nodes.append(start_node(2, self.options.tmpdir, ["-debug"]))
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def run_test(self):
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print "Make sure we repopulate setBlockIndexCandidates after InvalidateBlock:"
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print "Mine 4 blocks on Node 0"
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self.nodes[0].generate(4)
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assert(self.nodes[0].getblockcount() == 4)
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besthash = self.nodes[0].getbestblockhash()
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print "Mine competing 6 blocks on Node 1"
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self.nodes[1].generate(6)
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assert(self.nodes[1].getblockcount() == 6)
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print "Connect nodes to force a reorg"
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connect_nodes_bi(self.nodes,0,1)
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sync_blocks(self.nodes[0:2])
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assert(self.nodes[0].getblockcount() == 6)
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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"
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self.nodes[0].invalidateblock(badhash)
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newheight = self.nodes[0].getblockcount()
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newhash = self.nodes[0].getbestblockhash()
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if (newheight != 4 or newhash != besthash):
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raise AssertionError("Wrong tip for node0, hash %s, height %d"%(newhash,newheight))
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print "\nMake sure we won't reorg to a lower work chain:"
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connect_nodes_bi(self.nodes,1,2)
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print "Sync node 2 to node 1 so both have 6 blocks"
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sync_blocks(self.nodes[1:3])
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assert(self.nodes[2].getblockcount() == 6)
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print "Invalidate block 5 on node 1 so its tip is now at 4"
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self.nodes[1].invalidateblock(self.nodes[1].getblockhash(5))
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assert(self.nodes[1].getblockcount() == 4)
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print "Invalidate block 3 on node 2, so its tip is now 2"
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self.nodes[2].invalidateblock(self.nodes[2].getblockhash(3))
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assert(self.nodes[2].getblockcount() == 2)
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print "..and then mine a block"
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self.nodes[2].generate(1)
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print "Verify all nodes are at the right height"
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time.sleep(5)
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for i in xrange(3):
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print i,self.nodes[i].getblockcount()
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assert(self.nodes[2].getblockcount() == 3)
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assert(self.nodes[0].getblockcount() == 4)
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node1height = self.nodes[1].getblockcount()
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if node1height < 4:
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raise AssertionError("Node 1 reorged to a lower height: %d"%node1height)
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if __name__ == '__main__':
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InvalidateTest().main()
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