dash/test/functional/feature_dip0020_activation.py
MarcoFalke 57b6fe7327
Merge bitcoin/bitcoin#22257: test: refactor: various (de)serialization helpers cleanups/improvements
bdb8b9a347e68f80a2e8d44ce5590a2e8214b6bb test: doc: improve doc for `from_hex` helper (mention `to_hex` alternative) (Sebastian Falbesoner)
191405420815d49ab50184513717a303fc2744d6 scripted-diff: test: rename `FromHex` to `from_hex` (Sebastian Falbesoner)
a79396fe5f8f81c78cf84117a87074c6ff6c9d95 test: remove `ToHex` helper, use .serialize().hex() instead (Sebastian Falbesoner)
2ce7b47958c4a10ba20dc86c011d71cda4b070a5 test: introduce `tx_from_hex` helper for tx deserialization (Sebastian Falbesoner)

Pull request description:

  There are still many functional tests that perform conversions from a hex-string to a message object (deserialization) manually. This PR identifies all those instances and replaces them with a newly introduced helper `tx_from_hex`.

  Instances were found via
  * `git grep "deserialize.*BytesIO"`

  and some of them manually, when it were not one-liners.

  Further, the helper `ToHex` was removed and simply replaced by `.serialize().hex()`, since now both variants are in use (sometimes even within the same test) and using the helper doesn't really have an advantage in readability. (see discussion https://github.com/bitcoin/bitcoin/pull/22257#discussion_r652404782)

ACKs for top commit:
  MarcoFalke:
    review re-ACK bdb8b9a347e68f80a2e8d44ce5590a2e8214b6bb 😁

Tree-SHA512: e25d7dc85918de1d6755a5cea65471b07a743204c20ad1c2f71ff07ef48cc1b9ad3fe5f515c1efaba2b2e3d89384e7980380c5d81895f9826e2046808cd3266e
2024-03-22 10:29:15 -05:00

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2.9 KiB
Python
Executable File

#!/usr/bin/env python3
# Copyright (c) 2015-2023 The Dash Core developers
# Distributed under the MIT software license, see the accompanying
# file COPYING or http://www.opensource.org/licenses/mit-license.php.
from test_framework.messages import COIN, COutPoint, CTransaction, CTxIn, CTxOut
from test_framework.script import CScript, OP_CAT, OP_DROP, OP_TRUE
from test_framework.test_framework import BitcoinTestFramework
from test_framework.util import assert_raises_rpc_error, softfork_active, satoshi_round
'''
feature_dip0020_activation.py
This test checks activation of DIP0020 opcodes
'''
DISABLED_OPCODE_ERROR = "non-mandatory-script-verify-flag (Attempted to use a disabled opcode)"
class DIP0020ActivationTest(BitcoinTestFramework):
def set_test_params(self):
self.num_nodes = 1
self.extra_args = [["-acceptnonstdtxn=1"]]
def skip_test_if_missing_module(self):
self.skip_if_no_wallet()
def run_test(self):
self.node = self.nodes[0]
self.relayfee = satoshi_round(self.nodes[0].getnetworkinfo()["relayfee"])
# We should have some coins already
utxos = self.node.listunspent()
assert len(utxos) > 0
# Lock some coins using disabled opcodes
utxo = utxos[len(utxos) - 1]
value = int(satoshi_round(utxo["amount"] - self.relayfee) * COIN)
tx = CTransaction()
tx.vin.append(CTxIn(COutPoint(int(utxo["txid"], 16), utxo["vout"])))
tx.vout.append(CTxOut(value, CScript([b'1', b'2', OP_CAT])))
tx_signed_hex = self.node.signrawtransactionwithwallet(tx.serialize().hex())["hex"]
txid = self.node.sendrawtransaction(tx_signed_hex)
# This tx should be completely valid, should be included in mempool and mined in the next block
assert txid in set(self.node.getrawmempool())
self.node.generate(1)
assert txid not in set(self.node.getrawmempool())
# Create spending tx
value = int(value - self.relayfee * COIN)
tx0 = CTransaction()
tx0.vin.append(CTxIn(COutPoint(int(txid, 16), 0)))
tx0.vout.append(CTxOut(value, CScript([OP_TRUE, OP_DROP] * 15 + [OP_TRUE])))
tx0.rehash()
tx0_hex = tx0.serialize().hex()
# This tx isn't valid yet
assert not softfork_active(self.nodes[0], 'dip0020')
assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, self.node.sendrawtransaction, tx0_hex)
# Generate enough blocks to activate DIP0020 opcodes
self.node.generate(98)
assert softfork_active(self.nodes[0], 'dip0020')
# Still need 1 more block for mempool to accept new opcodes
assert_raises_rpc_error(-26, DISABLED_OPCODE_ERROR, self.node.sendrawtransaction, tx0_hex)
self.node.generate(1)
# Should be spendable now
tx0id = self.node.sendrawtransaction(tx0_hex)
assert tx0id in set(self.node.getrawmempool())
if __name__ == '__main__':
DIP0020ActivationTest().main()