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a9872e1478
Solving a block involves continously rehashing it, i.e. any extra calls to rehash it before are not necessary and can be dropped.
145 lines
7.2 KiB
Python
Executable file
145 lines
7.2 KiB
Python
Executable file
#!/usr/bin/env python3
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# Copyright (c) 2016-2020 The Bitcoin Core developers
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# Distributed under the MIT software license, see the accompanying
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# file COPYING or http://www.opensource.org/licenses/mit-license.php.
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"""Test NULLDUMMY softfork.
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Connect to a single node.
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Generate 2 blocks (save the coinbases for later).
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Generate COINBASE_MATURITY (CB) more blocks to ensure the coinbases are mature.
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[Policy/Consensus] Check that NULLDUMMY compliant transactions are accepted in block CB + 3.
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[Policy] Check that non-NULLDUMMY transactions are rejected before activation.
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[Consensus] Check that the new NULLDUMMY rules are not enforced on block CB + 4.
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[Policy/Consensus] Check that the new NULLDUMMY rules are enforced on block CB + 5.
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"""
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import time
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from test_framework.blocktools import (
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COINBASE_MATURITY,
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NORMAL_GBT_REQUEST_PARAMS,
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add_witness_commitment,
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create_block,
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create_transaction,
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)
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from test_framework.messages import CTransaction
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from test_framework.script import CScript
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import (
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assert_equal,
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assert_raises_rpc_error,
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)
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NULLDUMMY_ERROR = "non-mandatory-script-verify-flag (Dummy CHECKMULTISIG argument must be zero)"
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def trueDummy(tx):
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scriptSig = CScript(tx.vin[0].scriptSig)
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newscript = []
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for i in scriptSig:
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if len(newscript) == 0:
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assert len(i) == 0
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newscript.append(b'\x51')
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else:
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newscript.append(i)
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tx.vin[0].scriptSig = CScript(newscript)
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tx.rehash()
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class NULLDUMMYTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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self.setup_clean_chain = True
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# This script tests NULLDUMMY activation, which is part of the 'segwit' deployment, so we go through
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# normal segwit activation here (and don't use the default always-on behaviour).
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self.extra_args = [[
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f'-testactivationheight=segwit@{COINBASE_MATURITY + 5}',
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'-addresstype=legacy',
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'-par=1', # Use only one script thread to get the exact reject reason for testing
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]]
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def skip_test_if_missing_module(self):
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self.skip_if_no_wallet()
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def run_test(self):
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self.nodes[0].createwallet(wallet_name='wmulti', disable_private_keys=True)
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wmulti = self.nodes[0].get_wallet_rpc('wmulti')
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w0 = self.nodes[0].get_wallet_rpc(self.default_wallet_name)
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self.address = w0.getnewaddress()
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self.pubkey = w0.getaddressinfo(self.address)['pubkey']
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self.ms_address = wmulti.addmultisigaddress(1, [self.pubkey])['address']
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self.wit_address = w0.getnewaddress(address_type='p2sh-segwit')
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self.wit_ms_address = wmulti.addmultisigaddress(1, [self.pubkey], '', 'p2sh-segwit')['address']
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if not self.options.descriptors:
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# Legacy wallets need to import these so that they are watched by the wallet. This is unnecessary (and does not need to be tested) for descriptor wallets
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wmulti.importaddress(self.ms_address)
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wmulti.importaddress(self.wit_ms_address)
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self.coinbase_blocks = self.generate(self.nodes[0], 2) # block height = 2
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coinbase_txid = []
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for i in self.coinbase_blocks:
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coinbase_txid.append(self.nodes[0].getblock(i)['tx'][0])
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self.generate(self.nodes[0], COINBASE_MATURITY) # block height = COINBASE_MATURITY + 2
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self.lastblockhash = self.nodes[0].getbestblockhash()
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self.lastblockheight = COINBASE_MATURITY + 2
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self.lastblocktime = int(time.time()) + self.lastblockheight
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self.log.info(f"Test 1: NULLDUMMY compliant base transactions should be accepted to mempool and mined before activation [{COINBASE_MATURITY + 3}]")
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test1txs = [create_transaction(self.nodes[0], coinbase_txid[0], self.ms_address, amount=49)]
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txid1 = self.nodes[0].sendrawtransaction(test1txs[0].serialize_with_witness().hex(), 0)
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test1txs.append(create_transaction(self.nodes[0], txid1, self.ms_address, amount=48))
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txid2 = self.nodes[0].sendrawtransaction(test1txs[1].serialize_with_witness().hex(), 0)
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test1txs.append(create_transaction(self.nodes[0], coinbase_txid[1], self.wit_ms_address, amount=49))
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txid3 = self.nodes[0].sendrawtransaction(test1txs[2].serialize_with_witness().hex(), 0)
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self.block_submit(self.nodes[0], test1txs, accept=True)
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self.log.info("Test 2: Non-NULLDUMMY base multisig transaction should not be accepted to mempool before activation")
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test2tx = create_transaction(self.nodes[0], txid2, self.ms_address, amount=47)
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trueDummy(test2tx)
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assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, test2tx.serialize_with_witness().hex(), 0)
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self.log.info(f"Test 3: Non-NULLDUMMY base transactions should be accepted in a block before activation [{COINBASE_MATURITY + 4}]")
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self.block_submit(self.nodes[0], [test2tx], accept=True)
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self.log.info("Test 4: Non-NULLDUMMY base multisig transaction is invalid after activation")
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test4tx = create_transaction(self.nodes[0], test2tx.hash, self.address, amount=46)
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test6txs = [CTransaction(test4tx)]
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trueDummy(test4tx)
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assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, test4tx.serialize_with_witness().hex(), 0)
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self.block_submit(self.nodes[0], [test4tx], accept=False)
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self.log.info("Test 5: Non-NULLDUMMY P2WSH multisig transaction invalid after activation")
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test5tx = create_transaction(self.nodes[0], txid3, self.wit_address, amount=48)
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test6txs.append(CTransaction(test5tx))
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test5tx.wit.vtxinwit[0].scriptWitness.stack[0] = b'\x01'
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assert_raises_rpc_error(-26, NULLDUMMY_ERROR, self.nodes[0].sendrawtransaction, test5tx.serialize_with_witness().hex(), 0)
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self.block_submit(self.nodes[0], [test5tx], with_witness=True, accept=False)
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self.log.info(f"Test 6: NULLDUMMY compliant base/witness transactions should be accepted to mempool and in block after activation [{COINBASE_MATURITY + 5}]")
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for i in test6txs:
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self.nodes[0].sendrawtransaction(i.serialize_with_witness().hex(), 0)
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self.block_submit(self.nodes[0], test6txs, with_witness=True, accept=True)
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def block_submit(self, node, txs, *, with_witness=False, accept):
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tmpl = node.getblocktemplate(NORMAL_GBT_REQUEST_PARAMS)
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assert_equal(tmpl['previousblockhash'], self.lastblockhash)
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assert_equal(tmpl['height'], self.lastblockheight + 1)
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block = create_block(tmpl=tmpl, ntime=self.lastblocktime + 1)
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for tx in txs:
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tx.rehash()
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block.vtx.append(tx)
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block.hashMerkleRoot = block.calc_merkle_root()
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if with_witness:
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add_witness_commitment(block)
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block.solve()
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assert_equal(None if accept else NULLDUMMY_ERROR, node.submitblock(block.serialize().hex()))
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if accept:
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assert_equal(node.getbestblockhash(), block.hash)
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self.lastblockhash = block.hash
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self.lastblocktime += 1
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self.lastblockheight += 1
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else:
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assert_equal(node.getbestblockhash(), self.lastblockhash)
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if __name__ == '__main__':
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NULLDUMMYTest().main()
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