git / moonbite-core / test/functional/rpc_txoutproof.py · raw

#!/usr/bin/env python3# Copyright (c) 2014-2019 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.messages import CMerkleBlock, FromHex, ToHexfrom test_framework.test_framework import BitcoinTestFrameworkfrom test_framework.util import assert_equal, assert_raises_rpc_errorfrom test_framework.wallet import MiniWalletclass MerkleBlockTest(BitcoinTestFramework):    def set_test_params(self):        self.num_nodes = 2        self.setup_clean_chain = True        self.extra_args = [            [],            ["-txindex"],        ]    def run_test(self):        miniwallet = MiniWallet(self.nodes[0])        # Add enough mature utxos to the wallet, so that all txs spend confirmed coins        miniwallet.generate(5)        self.nodes[0].generate(100)        self.sync_all()        chain_height = self.nodes[1].getblockcount()        assert_equal(chain_height, 105)        txid1 = miniwallet.send_self_transfer(from_node=self.nodes[0])['txid']        txid2 = miniwallet.send_self_transfer(from_node=self.nodes[0])['txid']        # This will raise an exception because the transaction is not yet in a block        assert_raises_rpc_error(-5, "Transaction not yet in block", 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[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1])), [txid1])        assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2])), txlist)        assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2], blockhash)), txlist)        txin_spent = miniwallet.get_utxo()  # Get the change from txid2        tx3 = miniwallet.send_self_transfer(from_node=self.nodes[0], utxo_to_spend=txin_spent)        txid3 = tx3['txid']        self.nodes[0].generate(1)        self.sync_all()        txid_spent = txin_spent["txid"]        txid_unspent = txid1  # Input was change from txid2, so txid1 should be unspent        # Invalid txids        assert_raises_rpc_error(-8, "txid must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[0].gettxoutproof, ["00000000000000000000000000000000"], blockhash)        assert_raises_rpc_error(-8, "txid must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].gettxoutproof, ["ZZZ0000000000000000000000000000000000000000000000000000000000000"], blockhash)        # Invalid blockhashes        assert_raises_rpc_error(-8, "blockhash must be of length 64 (not 32, for '00000000000000000000000000000000')", self.nodes[0].gettxoutproof, [txid_spent], "00000000000000000000000000000000")        assert_raises_rpc_error(-8, "blockhash must be hexadecimal string (not 'ZZZ0000000000000000000000000000000000000000000000000000000000000')", self.nodes[0].gettxoutproof, [txid_spent], "ZZZ0000000000000000000000000000000000000000000000000000000000000")        # We can't find the block from a fully-spent tx        assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [txid_spent])        # We can get the proof if we specify the block        assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid_spent], blockhash)), [txid_spent])        # We can't get the proof if we specify a non-existent block        assert_raises_rpc_error(-5, "Block not found", self.nodes[0].gettxoutproof, [txid_spent], "0000000000000000000000000000000000000000000000000000000000000000")        # We can get the proof if the transaction is unspent        assert_equal(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid_unspent])), [txid_unspent])        # We can get the proof if we provide a list of transactions and one of them is unspent. The ordering of the list should not matter.        assert_equal(sorted(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid1, txid2]))), sorted(txlist))        assert_equal(sorted(self.nodes[0].verifytxoutproof(self.nodes[0].gettxoutproof([txid2, txid1]))), sorted(txlist))        # We can always get a proof if we have a -txindex        assert_equal(self.nodes[0].verifytxoutproof(self.nodes[1].gettxoutproof([txid_spent])), [txid_spent])        # We can't get a proof if we specify transactions from different blocks        assert_raises_rpc_error(-5, "Not all transactions found in specified or retrieved block", self.nodes[0].gettxoutproof, [txid1, txid3])        # Test empty list        assert_raises_rpc_error(-5, "Transaction not yet in block", self.nodes[0].gettxoutproof, [])        # Test duplicate txid        assert_raises_rpc_error(-8, 'Invalid parameter, duplicated txid', self.nodes[0].gettxoutproof, [txid1, txid1])        # Now we'll try tweaking a proof.        proof = self.nodes[1].gettxoutproof([txid1, txid2])        assert txid1 in self.nodes[0].verifytxoutproof(proof)        assert txid2 in self.nodes[1].verifytxoutproof(proof)        tweaked_proof = FromHex(CMerkleBlock(), proof)        # Make sure that our serialization/deserialization is working        assert txid1 in self.nodes[0].verifytxoutproof(ToHex(tweaked_proof))        # Check to see if we can go up the merkle tree and pass this off as a        # single-transaction block        tweaked_proof.txn.nTransactions = 1        tweaked_proof.txn.vHash = [tweaked_proof.header.hashMerkleRoot]        tweaked_proof.txn.vBits = [True] + [False]*7        for n in self.nodes:            assert not n.verifytxoutproof(ToHex(tweaked_proof))        # TODO: try more variants, eg transactions at different depths, and        # verify that the proofs are invalidif __name__ == '__main__':    MerkleBlockTest().main()