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137 lines
7.1 KiB
137 lines
7.1 KiB
#!/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 NORMAL_GBT_REQUEST_PARAMS, create_block, create_transaction, add_witness_commitment
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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 assert_equal, assert_raises_rpc_error
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COINBASE_MATURITY = 100
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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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# Need two nodes so GBT (getblocktemplate) doesn't complain that it's not connected.
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self.num_nodes = 2
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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'-segwitheight={COINBASE_MATURITY + 5}',
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'-addresstype=legacy',
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]] * 2
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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.nodes[0].generate(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.nodes[0].generate(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, False, 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], False, 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])
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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], True)
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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, True, True)
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def block_submit(self, node, txs, witness=False, accept=False):
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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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witness and add_witness_commitment(block)
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block.rehash()
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block.solve()
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assert_equal(None if accept else 'block-validation-failed', 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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