qa/rpc-tests/bip65-cltv.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2015-2016 The Bitcoin Core developers
   3 # Distributed under the MIT software license, see the accompanying
   4 # file COPYING or http://www.opensource.org/licenses/mit-license.php.
   5
   6 #
   7 # Test the CHECKLOCKTIMEVERIFY (BIP65) soft-fork logic
   8 #
   9
  10 from test_framework.test_framework import BitcoinTestFramework
  11 from test_framework.util import *
  12
  13 class BIP65Test(BitcoinTestFramework):
  14     def __init__(self):
  15         super().__init__()
  16         self.num_nodes = 3
  17         self.setup_clean_chain = False
  18
  19     def setup_network(self):
  20         self.nodes = []
  21         self.nodes.append(start_node(0, self.options.tmpdir, []))
  22         self.nodes.append(start_node(1, self.options.tmpdir, ["-blockversion=3"]))
  23         self.nodes.append(start_node(2, self.options.tmpdir, ["-blockversion=4"]))
  24         connect_nodes(self.nodes[1], 0)
  25         connect_nodes(self.nodes[2], 0)
  26         self.is_network_split = False
  27         self.sync_all()
  28
  29     def run_test(self):
  30         cnt = self.nodes[0].getblockcount()
  31
  32         # Mine some old-version blocks
  33         self.nodes[1].generate(200)
  34         cnt += 100
  35         self.sync_all()
  36         if (self.nodes[0].getblockcount() != cnt + 100):
  37             raise AssertionError("Failed to mine 100 version=3 blocks")
  38
  39         # Mine 750 new-version blocks
  40         for i in range(15):
  41             self.nodes[2].generate(50)
  42         self.sync_all()
  43         if (self.nodes[0].getblockcount() != cnt + 850):
  44             raise AssertionError("Failed to mine 750 version=4 blocks")
  45
  46         # TODO: check that new CHECKLOCKTIMEVERIFY rules are not enforced
  47
  48         # Mine 1 new-version block
  49         self.nodes[2].generate(1)
  50         self.sync_all()
  51         if (self.nodes[0].getblockcount() != cnt + 851):
  52             raise AssertionError("Failed to mine a version=4 blocks")
  53
  54         # TODO: check that new CHECKLOCKTIMEVERIFY rules are enforced
  55
  56         # Mine 198 new-version blocks
  57         for i in range(2):
  58             self.nodes[2].generate(99)
  59         self.sync_all()
  60         if (self.nodes[0].getblockcount() != cnt + 1049):
  61             raise AssertionError("Failed to mine 198 version=4 blocks")
  62
  63         # Mine 1 old-version block
  64         self.nodes[1].generate(1)
  65         self.sync_all()
  66         if (self.nodes[0].getblockcount() != cnt + 1050):
  67             raise AssertionError("Failed to mine a version=3 block after 949 version=4 blocks")
  68
  69         # Mine 1 new-version blocks
  70         self.nodes[2].generate(1)
  71         self.sync_all()
  72         if (self.nodes[0].getblockcount() != cnt + 1051):
  73             raise AssertionError("Failed to mine a version=4 block")
  74
  75         # Mine 1 old-version blocks
  76         try:
  77             self.nodes[1].generate(1)
  78             raise AssertionError("Succeeded to mine a version=3 block after 950 version=4 blocks")
  79         except JSONRPCException:
  80             pass
  81         self.sync_all()
  82         if (self.nodes[0].getblockcount() != cnt + 1051):
  83             raise AssertionError("Accepted a version=3 block after 950 version=4 blocks")
  84
  85         # Mine 1 new-version blocks
  86         self.nodes[2].generate(1)
  87         self.sync_all()
  88         if (self.nodes[0].getblockcount() != cnt + 1052):
  89             raise AssertionError("Failed to mine a version=4 block")
  90
  91 if __name__ == '__main__':
  92     BIP65Test().main()