fee_rate.cpp raw

   1  // Copyright (c) 2020-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 <policy/feerate.h>
   7  #include <test/fuzz/FuzzedDataProvider.h>
   8  #include <test/fuzz/fuzz.h>
   9  #include <test/fuzz/util.h>
  10  
  11  #include <cstdint>
  12  #include <limits>
  13  #include <string>
  14  #include <vector>
  15  
  16  FUZZ_TARGET(fee_rate)
  17  {
  18      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  19      const CAmount satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
  20      const CFeeRate fee_rate{satoshis_per_k};
  21  
  22      (void)fee_rate.GetFeePerK();
  23      const auto bytes = fuzzed_data_provider.ConsumeIntegralInRange<int32_t>(0, std::numeric_limits<int32_t>::max());
  24      if (!MultiplicationOverflow(int64_t{bytes}, satoshis_per_k)) {
  25          (void)fee_rate.GetFee(bytes);
  26      }
  27      (void)fee_rate.ToString();
  28  
  29      const CAmount another_satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
  30      CFeeRate larger_fee_rate{another_satoshis_per_k};
  31      larger_fee_rate += fee_rate;
  32      if (satoshis_per_k != 0 && another_satoshis_per_k != 0) {
  33          assert(fee_rate < larger_fee_rate);
  34          assert(!(fee_rate > larger_fee_rate));
  35          assert(!(fee_rate == larger_fee_rate));
  36          assert(fee_rate <= larger_fee_rate);
  37          assert(!(fee_rate >= larger_fee_rate));
  38          assert(fee_rate != larger_fee_rate);
  39      }
  40  }
  41