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115 lines
5.2 KiB
Python
Executable File
115 lines
5.2 KiB
Python
Executable File
#!/usr/bin/env python3
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# Copyright (c) 2015-2023 The Dash 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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from test_framework.blocktools import create_block, create_coinbase
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from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut
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from test_framework.p2p import P2PDataStore
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from test_framework.script import CScript, OP_CAT, OP_DROP, OP_TRUE
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from test_framework.test_framework import BitcoinTestFramework
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from test_framework.util import assert_raises_rpc_error, softfork_active, satoshi_round
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'''
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feature_dip0020_activation.py
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This test checks activation of DIP0020 opcodes
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'''
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DISABLED_OPCODE_ERROR = "non-mandatory-script-verify-flag (Attempted to use a disabled opcode)"
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DIP0020_HEIGHT = 300
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class DIP0020ActivationTest(BitcoinTestFramework):
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def set_test_params(self):
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self.num_nodes = 1
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self.extra_args = [[
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f'-testactivationheight=dip0020@{DIP0020_HEIGHT}',
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"-acceptnonstdtxn=1",
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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 create_test_block(self, txs, tip_hash, tip_height, tip_time):
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block = create_block(int(tip_hash, 16), create_coinbase(tip_height + 1), tip_time + 1)
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block.nVersion = 4
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block.vtx.extend(txs)
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block.hashMerkleRoot = block.calc_merkle_root()
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block.rehash()
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block.solve()
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return block
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def run_test(self):
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node = self.nodes[0]
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relayfee = satoshi_round(node.getnetworkinfo()["relayfee"])
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# We should have some coins already
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utxos = node.listunspent()
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assert len(utxos) > 0
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# Lock some coins using disabled opcodes
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utxo = utxos[len(utxos) - 1]
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value = int(satoshi_round(utxo["amount"] - relayfee) * COIN)
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tx = CTransaction()
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tx.vin.append(CTxIn(COutPoint(int(utxo["txid"], 16), utxo["vout"])))
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tx.vout.append(CTxOut(value, CScript([b'1', b'2', OP_CAT])))
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tx_signed_hex = node.signrawtransactionwithwallet(tx.serialize().hex())["hex"]
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txid = node.sendrawtransaction(tx_signed_hex)
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# This tx should be completely valid, should be included in mempool and mined in the next block
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assert txid in set(node.getrawmempool())
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self.generate(node, 1, sync_fun=self.no_op)
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assert txid not in set(node.getrawmempool())
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# Create spending tx
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value = int(value - relayfee * COIN)
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tx0 = CTransaction()
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tx0.vin.append(CTxIn(COutPoint(int(txid, 16), 0)))
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tx0.vout.append(CTxOut(value, CScript([OP_TRUE, OP_DROP] * 15 + [OP_TRUE])))
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tx0.rehash()
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tx0_hex = tx0.serialize().hex()
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tx0id = node.decoderawtransaction(tx0_hex)["txid"]
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# flush state to disk before potential crashes below
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self.nodes[0].gettxoutsetinfo()
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self.log.info("Transactions spending coins with new opcodes aren't accepted before DIP0020 activation")
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assert not softfork_active(node, 'dip0020')
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assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, node.sendrawtransaction, tx0_hex)
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helper_peer = node.add_p2p_connection(P2PDataStore())
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helper_peer.send_txs_and_test([tx0], node, success=False, reject_reason=DISABLED_OPCODE_ERROR)
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tip = node.getblock(node.getbestblockhash(), 1)
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test_block = self.create_test_block([tx0], tip["hash"], tip["height"], tip["time"])
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helper_peer.send_blocks_and_test([test_block], node, success=False, reject_reason='block-validation-failed', expect_disconnect=True)
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self.log.info("Generate enough blocks to activate DIP0020 opcodes")
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self.generate(node, 97, sync_fun=self.no_op)
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assert not softfork_active(node, 'dip0020')
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self.generate(node, 1, sync_fun=self.no_op)
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assert softfork_active(node, 'dip0020')
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# flush state to disk before potential crashes below
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self.nodes[0].gettxoutsetinfo()
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# Still need 1 more block for mempool to accept txes spending new opcodes
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self.log.info("Transactions spending coins with new opcodes aren't accepted at DIP0020 activation block")
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assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, node.sendrawtransaction, tx0_hex)
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helper_peer = node.add_p2p_connection(P2PDataStore())
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helper_peer.send_txs_and_test([tx0], node, success=False, reject_reason=DISABLED_OPCODE_ERROR)
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# A block containing new opcodes is accepted however
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tip = node.getblock(node.getbestblockhash(), 1)
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test_block = self.create_test_block([tx0], tip["hash"], tip["height"], tip["time"])
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helper_peer.send_blocks_and_test([test_block], node, success=True)
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# txes spending new opcodes still won't be accepted into mempool if we roll back to the previous tip
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node.invalidateblock(node.getbestblockhash())
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assert tx0id not in set(node.getrawmempool())
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self.generate(node, 1, sync_fun=self.no_op)
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self.log.info("Transactions spending coins with new opcodes are accepted one block after DIP0020 activation block")
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node.sendrawtransaction(tx0_hex)
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assert tx0id in set(node.getrawmempool())
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if __name__ == '__main__':
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DIP0020ActivationTest().main()
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