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#!/usr/bin/env python3
# Copyright (c) 2014-2016 The Bitcoin Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
"""Test gettxoutproof and verifytxoutproof RPCs."""
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import *
class MerkleBlockTest(BitcoinTestFramework):
def __init__(self):
super().__init__()
self.setup_clean_chain = True
self.num_nodes = 4
# Nodes 0/1 are "wallet" nodes, Nodes 2/3 are used for testing
self.extra_args = [[], [], [], ["-txindex"]]
def setup_network(self):
self.setup_nodes()
connect_nodes(self.nodes[0], 1)
connect_nodes(self.nodes[0], 2)
connect_nodes(self.nodes[0], 3)
self.sync_all()
def run_test(self):
self.log.info("Mining blocks...")
self.nodes[0].generate(105)
self.sync_all()
chain_height = self.nodes[1].getblockcount()
assert_equal(chain_height, 105)
assert_equal(self.nodes[1].getbalance(), 0)
assert_equal(self.nodes[2].getbalance(), 0)
node0utxos = self.nodes[0].listunspent(1)
tx1 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
txid1 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx1)["hex"])
tx2 = self.nodes[0].createrawtransaction([node0utxos.pop()], {self.nodes[1].getnewaddress(): 49.99})
txid2 = self.nodes[0].sendrawtransaction(self.nodes[0].signrawtransaction(tx2)["hex"])
assert_raises(JSONRPCException, self.nodes[0].gettxoutproof, [txid1])
self.nodes[0].generate(1)
blockhash = self.nodes[0].getblockhash(chain_height + 1)
self.sync_all()
txlist = []
blocktxn = self.nodes[0].getblock(blockhash, True)["tx"]
txlist.append(blocktxn[1])
txlist.append(blocktxn[2])
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1])), [txid1])
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2], blockhash)), txlist)
txin_spent = self.nodes[1].listunspent(1).pop()
tx3 = self.nodes[1].createrawtransaction([txin_spent], {self.nodes[0].getnewaddress(): 49.98})
self.nodes[0].sendrawtransaction(self.nodes[1].signrawtransaction(tx3)["hex"])
self.nodes[0].generate(1)
self.sync_all()
txid_spent = txin_spent["txid"]
txid_unspent = txid1 if txin_spent["txid"] != txid1 else txid2
# We can't find the block from a fully-spent tx
assert_raises(JSONRPCException, self.nodes[2].gettxoutproof, [txid_spent])
# ...but we can if we specify the block
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_spent], blockhash)), [txid_spent])
# ...or if the first tx is not fully-spent
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid_unspent])), [txid_unspent])
try:
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid1, txid2])), txlist)
except JSONRPCException:
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[2].gettxoutproof([txid2, txid1])), txlist)
# ...or if we have a -txindex
assert_equal(self.nodes[2].verifytxoutproof(self.nodes[3].gettxoutproof([txid_spent])), [txid_spent])
if __name__ == '__main__':
MerkleBlockTest().main()