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test/functional/test_framework/blocktools.py
| #!/usr/bin/env python3 | #!/usr/bin/env python3 | ||||
| # Copyright (c) 2015-2016 The Bitcoin Core developers | # Copyright (c) 2015-2016 The Bitcoin Core developers | ||||
| # Distributed under the MIT software license, see the accompanying | # Distributed under the MIT software license, see the accompanying | ||||
| # file COPYING or http://www.opensource.org/licenses/mit-license.php. | # file COPYING or http://www.opensource.org/licenses/mit-license.php. | ||||
| """Utilities for manipulating blocks and transactions.""" | """Utilities for manipulating blocks and transactions.""" | ||||
| from .mininode import * | from .mininode import * | ||||
| from .script import CScript, OP_TRUE, OP_CHECKSIG, OP_RETURN, OP_PUSHDATA2 | from .script import CScript, OP_TRUE, OP_CHECKSIG, OP_RETURN, OP_PUSHDATA2, OP_DUP, OP_HASH160, OP_EQUALVERIFY | ||||
| from .mininode import CTransaction, CTxOut, CTxIn | from .mininode import CTransaction, CTxOut, CTxIn | ||||
| from .util import satoshi_round | from .util import satoshi_round | ||||
| # Create a block (with regtest difficulty) | # Create a block (with regtest difficulty) | ||||
| def create_block(hashprev, coinbase, nTime=None): | def create_block(hashprev, coinbase, nTime=None): | ||||
| block = CBlock() | block = CBlock() | ||||
| ▲ Show 20 Lines • Show All 113 Lines • ▼ Show 20 Lines | while (node.getmempoolinfo()['size'] > 0): | ||||
| node.generate(1) | node.generate(1) | ||||
| utxos = node.listunspent() | utxos = node.listunspent() | ||||
| assert(len(utxos) >= count) | assert(len(utxos) >= count) | ||||
| return utxos | return utxos | ||||
| def send_big_transactions(node, utxos, num, fee_multiplier): | def send_big_transactions(node, utxos, num, fee_multiplier): | ||||
| from .cashaddr import decode | |||||
| txids = [] | txids = [] | ||||
| padding = "1"*(512*127) | padding = "1"*(512*127) | ||||
| addrHash = decode(node.getnewaddress())[2] | |||||
| for _ in range(num): | for _ in range(num): | ||||
| ctx = CTransaction() | ctx = CTransaction() | ||||
| utxo = utxos.pop() | utxo = utxos.pop() | ||||
| txid = int(utxo['txid'], 16) | txid = int(utxo['txid'], 16) | ||||
| ctx.vin.append(CTxIn(COutPoint(txid, int(utxo["vout"])), b"")) | ctx.vin.append(CTxIn(COutPoint(txid, int(utxo["vout"])), b"")) | ||||
| ctx.vout.append(CTxOut(0, CScript( | ctx.vout.append(CTxOut(0, CScript( | ||||
| [OP_RETURN, OP_PUSHDATA2, len(padding), bytes(padding, 'utf-8')]))) | [OP_RETURN, OP_PUSHDATA2, len(padding), bytes(padding, 'utf-8')]))) | ||||
| ctx.vout.append( | ctx.vout.append( | ||||
| CTxOut(int(satoshi_round(utxo['amount']*COIN)), CScript([OP_TRUE]))) | CTxOut(int(satoshi_round(utxo['amount']*COIN)), | ||||
| CScript([OP_DUP, OP_HASH160, addrHash, OP_EQUALVERIFY, OP_CHECKSIG]))) | |||||
| # Create a proper fee for the transaction to be mined | # Create a proper fee for the transaction to be mined | ||||
| ctx.vout[1].nValue -= int(fee_multiplier * node.calculate_fee(ctx)) | ctx.vout[1].nValue -= int(fee_multiplier * node.calculate_fee(ctx)) | ||||
| signresult = node.signrawtransaction( | signresult = node.signrawtransaction( | ||||
| ToHex(ctx), None, None, "NONE|FORKID") | ToHex(ctx), None, None, "NONE|FORKID") | ||||
| txid = node.sendrawtransaction(signresult["hex"], True) | txid = node.sendrawtransaction(signresult["hex"], True) | ||||
| txids.append(txid) | txids.append(txid) | ||||
| return txids | return txids | ||||