1  // Copyright (c) 2022-present The Bitcoin Core developers
 2  // Distributed under the MIT software license, see the accompanying
 3  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 4  
 5  #include <consensus/amount.h>
 6  #include <consensus/consensus.h>
 7  #include <kernel/mempool_entry.h>
 8  #include <primitives/transaction.h>
 9  #include <test/fuzz/FuzzedDataProvider.h>
10  #include <test/fuzz/util.h>
11  #include <test/fuzz/util/mempool.h>
12  
13  #include <cassert>
14  #include <cstdint>
15  #include <limits>
16  
17  CTxMemPoolEntry ConsumeTxMemPoolEntry(FuzzedDataProvider& fuzzed_data_provider, const CTransaction& tx, uint32_t max_height) noexcept
18  {
19      // Avoid:
20      // policy/feerate.cpp:28:34: runtime error: signed integer overflow: 34873208148477500 * 1000 cannot be represented in type 'long'
21      //
22      // Reproduce using CFeeRate(348732081484775, 10).GetFeePerK()
23      const CAmount fee{ConsumeMoney(fuzzed_data_provider, /*max=*/std::numeric_limits<CAmount>::max() / CAmount{100'000})};
24      assert(MoneyRange(fee));
25      const int64_t time = fuzzed_data_provider.ConsumeIntegral<int64_t>();
26      const uint64_t entry_sequence{fuzzed_data_provider.ConsumeIntegral<uint64_t>()};
27      const auto entry_height{fuzzed_data_provider.ConsumeIntegralInRange<uint32_t>(0, max_height)};
28      const bool spends_coinbase = fuzzed_data_provider.ConsumeBool();
29      const unsigned int sig_op_cost = fuzzed_data_provider.ConsumeIntegralInRange<unsigned int>(0, MAX_BLOCK_SIGOPS_COST);
30      return CTxMemPoolEntry{MakeTransactionRef(tx), fee, time, entry_height, entry_sequence, spends_coinbase, sig_op_cost, {}};
31  }