diff options
| -rwxr-xr-x | test/functional/mempool_datacarrier.py | 71 | ||||
| -rwxr-xr-x | test/functional/test_framework/messages.py | 3 | ||||
| -rwxr-xr-x | test/functional/test_runner.py | 1 |
3 files changed, 75 insertions, 0 deletions
diff --git a/test/functional/mempool_datacarrier.py b/test/functional/mempool_datacarrier.py new file mode 100755 index 0000000000..13df564a37 --- /dev/null +++ b/test/functional/mempool_datacarrier.py @@ -0,0 +1,71 @@ +#!/usr/bin/env python3 +# Copyright (c) 2020-2021 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. +"""Test datacarrier functionality""" +from test_framework.messages import ( + CTxOut, + MAX_OP_RETURN_RELAY, +) +from test_framework.script import ( + CScript, + OP_RETURN, +) +from test_framework.test_framework import BitcoinTestFramework +from test_framework.test_node import TestNode +from test_framework.util import ( + assert_raises_rpc_error, + random_bytes, +) +from test_framework.wallet import MiniWallet + + +class DataCarrierTest(BitcoinTestFramework): + def set_test_params(self): + self.num_nodes = 3 + self.extra_args = [ + [], + ["-datacarrier=0"], + ["-datacarrier=1", f"-datacarriersize={MAX_OP_RETURN_RELAY - 1}"] + ] + + def test_null_data_transaction(self, node: TestNode, data: bytes, success: bool) -> None: + tx = self.wallet.create_self_transfer(fee_rate=0)["tx"] + tx.vout.append(CTxOut(nValue=0, scriptPubKey=CScript([OP_RETURN, data]))) + tx.vout[0].nValue -= tx.get_vsize() # simply pay 1sat/vbyte fee + + tx_hex = tx.serialize().hex() + + if success: + self.wallet.sendrawtransaction(from_node=node, tx_hex=tx_hex) + assert tx.rehash() in node.getrawmempool(True), f'{tx_hex} not in mempool' + else: + assert_raises_rpc_error(-26, "scriptpubkey", self.wallet.sendrawtransaction, from_node=node, tx_hex=tx_hex) + + def run_test(self): + self.wallet = MiniWallet(self.nodes[0]) + self.wallet.rescan_utxos() + + # By default, only 80 bytes are used for data (+1 for OP_RETURN, +2 for the pushdata opcodes). + default_size_data = random_bytes(MAX_OP_RETURN_RELAY - 3) + too_long_data = random_bytes(MAX_OP_RETURN_RELAY - 2) + small_data = random_bytes(MAX_OP_RETURN_RELAY - 4) + + self.log.info("Testing null data transaction with default -datacarrier and -datacarriersize values.") + self.test_null_data_transaction(node=self.nodes[0], data=default_size_data, success=True) + + self.log.info("Testing a null data transaction larger than allowed by the default -datacarriersize value.") + self.test_null_data_transaction(node=self.nodes[0], data=too_long_data, success=False) + + self.log.info("Testing a null data transaction with -datacarrier=false.") + self.test_null_data_transaction(node=self.nodes[1], data=default_size_data, success=False) + + self.log.info("Testing a null data transaction with a size larger than accepted by -datacarriersize.") + self.test_null_data_transaction(node=self.nodes[2], data=default_size_data, success=False) + + self.log.info("Testing a null data transaction with a size smaller than accepted by -datacarriersize.") + self.test_null_data_transaction(node=self.nodes[2], data=small_data, success=True) + + +if __name__ == '__main__': + DataCarrierTest().main() diff --git a/test/functional/test_framework/messages.py b/test/functional/test_framework/messages.py index b323c52e5e..4e757b64ca 100755 --- a/test/functional/test_framework/messages.py +++ b/test/functional/test_framework/messages.py @@ -68,6 +68,9 @@ WITNESS_SCALE_FACTOR = 4 DEFAULT_ANCESTOR_LIMIT = 25 # default max number of in-mempool ancestors DEFAULT_DESCENDANT_LIMIT = 25 # default max number of in-mempool descendants +# Default setting for -datacarriersize. 80 bytes of data, +1 for OP_RETURN, +2 for the pushdata opcodes. +MAX_OP_RETURN_RELAY = 83 + def sha256(s): return hashlib.sha256(s).digest() diff --git a/test/functional/test_runner.py b/test/functional/test_runner.py index 2b365d8d10..3676b698f0 100755 --- a/test/functional/test_runner.py +++ b/test/functional/test_runner.py @@ -320,6 +320,7 @@ BASE_SCRIPTS = [ 'feature_unsupported_utxo_db.py', 'feature_logging.py', 'feature_anchors.py', + 'mempool_datacarrier.py', 'feature_coinstatsindex.py', 'wallet_orphanedreward.py', 'wallet_timelock.py', |