55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2014-2022 The Litecoin 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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"""Random assortment of utility functions"""
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from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut
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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, satoshi_round
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from test_framework.script_util import DUMMY_P2WPKH_SCRIPT
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"""Create a txout with a given amount and scriptPubKey
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Mines coins as needed.
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confirmed - txouts created will be confirmed in the blockchain;
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unconfirmed otherwise.
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"""
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def make_utxo(node, amount, confirmed=True, scriptPubKey=DUMMY_P2WPKH_SCRIPT):
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fee = 1*COIN
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while node.getbalance() < satoshi_round((amount + fee)/COIN):
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node.generate(100)
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new_addr = node.getnewaddress()
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txid = node.sendtoaddress(new_addr, satoshi_round((amount+fee)/COIN))
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tx1 = node.getrawtransaction(txid, 1)
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txid = int(txid, 16)
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i = None
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for i, txout in enumerate(tx1['vout']):
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if txout['scriptPubKey']['addresses'] == [new_addr]:
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break
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assert i is not None
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tx2 = CTransaction()
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tx2.vin = [CTxIn(COutPoint(txid, i))]
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tx2.vout = [CTxOut(amount, scriptPubKey)]
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tx2.rehash()
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signed_tx = node.signrawtransactionwithwallet(tx2.serialize().hex())
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txid = node.sendrawtransaction(signed_tx['hex'], 0)
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# If requested, ensure txouts are confirmed.
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if confirmed:
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mempool_size = len(node.getrawmempool())
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while mempool_size > 0:
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node.generate(1)
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new_size = len(node.getrawmempool())
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# Error out if we have something stuck in the mempool, as this
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# would likely be a bug.
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assert new_size < mempool_size
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mempool_size = new_size
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return COutPoint(int(txid, 16), 0) |