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#!/usr/bin/env python3 | ||
# Copyright (c) 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. | ||
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from test_framework.test_framework import ComparisonTestFramework | ||
from test_framework.util import * | ||
from test_framework.mininode import CTransaction, NetworkThread | ||
from test_framework.blocktools import create_coinbase, create_block, add_witness_commitment | ||
from test_framework.comptool import TestManager | ||
from test_framework.script import CScript | ||
from io import BytesIO | ||
import time | ||
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NULLDUMMY_ERROR = "64: non-mandatory-script-verify-flag (Dummy CHECKMULTISIG argument must be zero)" | ||
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def trueDummy(tx): | ||
scriptSig = CScript(tx.vin[0].scriptSig) | ||
newscript = [] | ||
for i in scriptSig: | ||
if (len(newscript) == 0): | ||
assert(len(i) == 0) | ||
newscript.append(b'\x51') | ||
else: | ||
newscript.append(i) | ||
tx.vin[0].scriptSig = CScript(newscript) | ||
tx.rehash() | ||
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''' | ||
This test is meant to exercise NULLDUMMY softfork. | ||
Connect to a single node. | ||
Generate 2 blocks (save the coinbases for later). | ||
Generate 427 more blocks. | ||
[Policy/Consensus] Check that NULLDUMMY compliant transactions are accepted in the 430th block. | ||
[Policy] Check that non-NULLDUMMY transactions are rejected before activation. | ||
[Consensus] Check that the new NULLDUMMY rules are not enforced on the 431st block. | ||
[Policy/Consensus] Check that the new NULLDUMMY rules are enforced on the 432nd block. | ||
''' | ||
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class NULLDUMMYTest(ComparisonTestFramework): | ||
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def __init__(self): | ||
super().__init__() | ||
self.num_nodes = 1 | ||
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def setup_network(self): | ||
# Must set the blockversion for this test | ||
self.nodes = start_nodes(self.num_nodes, self.options.tmpdir, | ||
extra_args=[['-debug', '-whitelist=127.0.0.1', '-walletprematurewitness']]) | ||
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def run_test(self): | ||
self.address = self.nodes[0].getnewaddress() | ||
self.ms_address = self.nodes[0].addmultisigaddress(1,[self.address]) | ||
self.wit_address = self.nodes[0].addwitnessaddress(self.address) | ||
self.wit_ms_address = self.nodes[0].addwitnessaddress(self.ms_address) | ||
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test = TestManager(self, self.options.tmpdir) | ||
test.add_all_connections(self.nodes) | ||
NetworkThread().start() # Start up network handling in another thread | ||
self.coinbase_blocks = self.nodes[0].generate(2) # Block 2 | ||
coinbase_txid = [] | ||
for i in self.coinbase_blocks: | ||
coinbase_txid.append(self.nodes[0].getblock(i)['tx'][0]) | ||
self.nodes[0].generate(427) # Block 429 | ||
self.lastblockhash = self.nodes[0].getbestblockhash() | ||
self.tip = int("0x" + self.lastblockhash, 0) | ||
self.lastblockheight = 429 | ||
self.lastblocktime = int(time.time()) + 429 | ||
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print ("Test 1: NULLDUMMY compliant base transactions should be accepted to mempool and mined before activation [430]") | ||
test1txs = [self.create_transaction(self.nodes[0], coinbase_txid[0], self.ms_address, 49)] | ||
txid1 = self.tx_submit(self.nodes[0], test1txs[0]) | ||
test1txs.append(self.create_transaction(self.nodes[0], txid1, self.ms_address, 48)) | ||
txid2 = self.tx_submit(self.nodes[0], test1txs[1]) | ||
test1txs.append(self.create_transaction(self.nodes[0], coinbase_txid[1], self.wit_ms_address, 49)) | ||
txid3 = self.tx_submit(self.nodes[0], test1txs[2]) | ||
self.block_submit(self.nodes[0], test1txs, False, True) | ||
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print ("Test 2: Non-NULLDUMMY base multisig transaction should not be accepted to mempool before activation") | ||
test2tx = self.create_transaction(self.nodes[0], txid2, self.ms_address, 48) | ||
trueDummy(test2tx) | ||
txid4 = self.tx_submit(self.nodes[0], test2tx, NULLDUMMY_ERROR) | ||
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print ("Test 3: Non-NULLDUMMY base transactions should be accepted in a block before activation [431]") | ||
self.block_submit(self.nodes[0], [test2tx], False, True) | ||
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print ("Test 4: Non-NULLDUMMY base multisig transaction is invalid after activation") | ||
test4tx = self.create_transaction(self.nodes[0], txid4, self.address, 47) | ||
test6txs=[CTransaction(test4tx)] | ||
trueDummy(test4tx) | ||
self.tx_submit(self.nodes[0], test4tx, NULLDUMMY_ERROR) | ||
self.block_submit(self.nodes[0], [test4tx]) | ||
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print ("Test 5: Non-NULLDUMMY P2WSH multisig transaction invalid after activation") | ||
test5tx = self.create_transaction(self.nodes[0], txid3, self.wit_address, 48) | ||
test6txs.append(CTransaction(test5tx)) | ||
test5tx.wit.vtxinwit[0].scriptWitness.stack[0] = b'\x01' | ||
self.tx_submit(self.nodes[0], test5tx, NULLDUMMY_ERROR) | ||
self.block_submit(self.nodes[0], [test5tx], True) | ||
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print ("Test 6: NULLDUMMY compliant base/witness transactions should be accepted to mempool and in block after activation [432]") | ||
for i in test6txs: | ||
self.tx_submit(self.nodes[0], i) | ||
self.block_submit(self.nodes[0], test6txs, True, True) | ||
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def create_transaction(self, node, txid, to_address, amount): | ||
inputs = [{ "txid" : txid, "vout" : 0}] | ||
outputs = { to_address : amount } | ||
rawtx = node.createrawtransaction(inputs, outputs) | ||
signresult = node.signrawtransaction(rawtx) | ||
tx = CTransaction() | ||
f = BytesIO(hex_str_to_bytes(signresult['hex'])) | ||
tx.deserialize(f) | ||
return tx | ||
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def tx_submit(self, node, tx, msg = ""): | ||
tx.rehash() | ||
try: | ||
node.sendrawtransaction(bytes_to_hex_str(tx.serialize_with_witness()), True) | ||
except JSONRPCException as exp: | ||
assert_equal(exp.error["message"], msg) | ||
return tx.hash | ||
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def block_submit(self, node, txs, witness = False, accept = False): | ||
block = create_block(self.tip, create_coinbase(self.lastblockheight + 1), self.lastblocktime + 1) | ||
block.nVersion = 4 | ||
for tx in txs: | ||
tx.rehash() | ||
block.vtx.append(tx) | ||
block.hashMerkleRoot = block.calc_merkle_root() | ||
witness and add_witness_commitment(block) | ||
block.rehash() | ||
block.solve() | ||
node.submitblock(bytes_to_hex_str(block.serialize(True))) | ||
if (accept): | ||
assert_equal(node.getbestblockhash(), block.hash) | ||
self.tip = block.sha256 | ||
self.lastblockhash = block.hash | ||
self.lastblocktime += 1 | ||
self.lastblockheight += 1 | ||
else: | ||
assert_equal(node.getbestblockhash(), self.lastblockhash) | ||
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if __name__ == '__main__': | ||
NULLDUMMYTest().main() |
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