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bcecdcd8e9
fad68f7[qa] Reduce node count for some tests (MarcoFalke)fac9349[qa] Remove hardcoded "4 nodes" from test_framework (MarcoFalke)
77 lines
3.0 KiB
Python
Executable File
77 lines
3.0 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2014-2016 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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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 *
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class InvalidateTest(BitcoinTestFramework):
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def __init__(self):
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super().__init__()
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self.setup_clean_chain = True
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self.num_nodes = 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 range(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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