src/test/fuzz/util/mempool.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

// Copyright (c) 2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <consensus/amount.h>
#include <primitives/transaction.h>
#include <test/fuzz/FuzzedDataProvider.h>
#include <test/fuzz/util.h>
#include <test/fuzz/util/mempool.h>
#include <txmempool.h>

#include <limits>

CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx) noexcept
{
    // Avoid:
    // policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long'
    //
    // Reproduce using CFeeRate(348732081484775, 10).GetFeePerK()
    const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/std::numeric_limits<CAmount>::max() / CAmount{100'000})};
    assert(MoneyRange(fee));
    const int64_t time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
    const unsigned int entry_height = fuzzed_data_provider.ConsumeIntegral<unsigned int>();
    const bool spends_coinbase = fuzzed_data_provider.ConsumeBool();
    const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, MAX_BLOCK_SIGOPS_COST);
    return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, spends_coinbase, sig_op_cost, {}};
}