test/functional/merkle_blocks.py

   1 #!/usr/bin/env python3
   2 # Copyright (c) 2014-2016 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 """Test gettxoutproof and verifytxoutproof RPCs."""
   6
   7 from test_framework.test_framework import BitcoinTestFramework
   8 from test_framework.util import *
   9
  10 class MerkleBlockTest(BitcoinTestFramework):
  11
  12     def __init__(self):
  13         super().__init__()
  14         self.setup_clean_chain = True
  15         self.num_nodes = 4
  16         # Nodes 0/1 are "wallet" nodes, Nodes 2/3 are used for testing
  17         self.extra_args = [[], [], [], ["-txindex"]]
  18
  19     def setup_network(self):
  20         self.setup_nodes()
  21         connect_nodes(self.nodes[0], 1)
  22         connect_nodes(self.nodes[0], 2)
  23         connect_nodes(self.nodes[0], 3)
  24
  25         self.sync_all()
  26
  27     def run_test(self):
  28         self.log.info("Mining blocks...")
  29         self.nodes[0].generate(105)
  30         self.sync_all()
  31
  32         chain_height = self.nodes[1].getblockcount()
  33         assert_equal(chain_height, 105)
  34         assert_equal(self.nodes[1].getbalance(), 0)
  35         assert_equal(self.nodes[2].getbalance(), 0)
  36
  37         node0utxos = self.nodes[0].listunspent(1)
  38         tx1 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
  39         txid1 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx1)["hex"])
  40         tx2 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
  41         txid2 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx2)["hex"])
  42         assert_raises(JSONRPCException, self.nodes[0].gettxoutproof, [txid1])
  43
  44         self.nodes[0].generate(1)
  45         blockhash = self.nodes[0].getblockhash(chain_height + 1)
  46         self.sync_all()
  47
  48         txlist = []
  49         blocktxn = self.nodes[0].getblock(blockhash, True)["tx"]
  50         txlist.append(blocktxn[1])
  51         txlist.append(blocktxn[2])
  52
  53         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1])), [txid1])
  54         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
  55         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2], blockhash)), txlist)
  56
  57         txin_spent = self.nodes[1].listunspent(1).pop()
  58         tx3 = self.nodes[1].createrawtransaction([txin_spent], {self.nodes[0].getnewaddress(): 49.98})
  59         self.nodes[0].sendrawtransaction(self.nodes[1].signrawtransaction(tx3)["hex"])
  60         self.nodes[0].generate(1)
  61         self.sync_all()
  62
  63         txid_spent = txin_spent["txid"]
  64         txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
  65
  66         # We can't find the block from a fully-spent tx
  67         assert_raises(JSONRPCException, self.nodes[2].gettxoutproof, [txid_spent])
  68         # ...but we can if we specify the block
  69         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])
  70         # ...or if the first tx is not fully-spent
  71         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_unspent])), [txid_unspent])
  72         try:
  73             assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
  74         except JSONRPCException:
  75             assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid2, txid1])), txlist)
  76         # ...or if we have a -txindex
  77         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[3].gettxoutproof([txid_spent])), [txid_spent])
  78
  79 if __name__ == '__main__':
  80     MerkleBlockTest().main()