qa/rpc-tests/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
  17     def setup_network(self):
  18         self.nodes = []
  19         # Nodes 0/1 are "wallet" nodes
  20         self.nodes.append(start_node(0, self.options.tmpdir, ["-debug"]))
  21         self.nodes.append(start_node(1, self.options.tmpdir, ["-debug"]))
  22         # Nodes 2/3 are used for testing
  23         self.nodes.append(start_node(2, self.options.tmpdir, ["-debug"]))
  24         self.nodes.append(start_node(3, self.options.tmpdir, ["-debug", "-txindex"]))
  25         connect_nodes(self.nodes[0], 1)
  26         connect_nodes(self.nodes[0], 2)
  27         connect_nodes(self.nodes[0], 3)
  28
  29         self.is_network_split = False
  30         self.sync_all()
  31
  32     def run_test(self):
  33         print("Mining blocks...")
  34         self.nodes[0].generate(105)
  35         self.sync_all()
  36
  37         chain_height = self.nodes[1].getblockcount()
  38         assert_equal(chain_height, 105)
  39         assert_equal(self.nodes[1].getbalance(), 0)
  40         assert_equal(self.nodes[2].getbalance(), 0)
  41
  42         node0utxos = self.nodes[0].listunspent(1)
  43         tx1 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
  44         txid1 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx1)["hex"])
  45         tx2 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
  46         txid2 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx2)["hex"])
  47         assert_raises(JSONRPCException, self.nodes[0].gettxoutproof, [txid1])
  48
  49         self.nodes[0].generate(1)
  50         blockhash = self.nodes[0].getblockhash(chain_height + 1)
  51         self.sync_all()
  52
  53         txlist = []
  54         blocktxn = self.nodes[0].getblock(blockhash, True)["tx"]
  55         txlist.append(blocktxn[1])
  56         txlist.append(blocktxn[2])
  57
  58         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1])), [txid1])
  59         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
  60         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2], blockhash)), txlist)
  61
  62         txin_spent = self.nodes[1].listunspent(1).pop()
  63         tx3 = self.nodes[1].createrawtransaction([txin_spent], {self.nodes[0].getnewaddress(): 49.98})
  64         self.nodes[0].sendrawtransaction(self.nodes[1].signrawtransaction(tx3)["hex"])
  65         self.nodes[0].generate(1)
  66         self.sync_all()
  67
  68         txid_spent = txin_spent["txid"]
  69         txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
  70
  71         # We can't find the block from a fully-spent tx
  72         assert_raises(JSONRPCException, self.nodes[2].gettxoutproof, [txid_spent])
  73         # ...but we can if we specify the block
  74         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])
  75         # ...or if the first tx is not fully-spent
  76         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_unspent])), [txid_unspent])
  77         try:
  78             assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
  79         except JSONRPCException:
  80             assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid2, txid1])), txlist)
  81         # ...or if we have a -txindex
  82         assert_equal(self.nodes[2].verifytxoutproof(self.nodes[3].gettxoutproof([txid_spent])), [txid_spent])
  83
  84 if __name__ == '__main__':
  85     MerkleBlockTest().main()