Line data    Source code

       1             : // Copyright (c) 2020-2021 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           4 : FUZZ_TARGET(fee_rate)
      17           2 : {
      18           2 :     FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
      19           0 :     const CAmount satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
      20           0 :     const CFeeRate fee_rate{satoshis_per_k};
      21             : 
      22           0 :     (void)fee_rate.GetFeePerK();
      23           0 :     const auto bytes = fuzzed_data_provider.ConsumeIntegral<uint32_t>();
      24           0 :     if (!MultiplicationOverflow(int64_t{bytes}, satoshis_per_k)) {
      25           2 :         (void)fee_rate.GetFee(bytes);
      26           0 :     }
      27           0 :     (void)fee_rate.ToString();
      28             : 
      29           0 :     const CAmount another_satoshis_per_k = ConsumeMoney(fuzzed_data_provider);
      30           0 :     CFeeRate larger_fee_rate{another_satoshis_per_k};
      31           0 :     larger_fee_rate += fee_rate;
      32           0 :     if (satoshis_per_k != 0 && another_satoshis_per_k != 0) {
      33           0 :         assert(fee_rate < larger_fee_rate);
      34           0 :         assert(!(fee_rate > larger_fee_rate));
      35           0 :         assert(!(fee_rate == larger_fee_rate));
      36           0 :         assert(fee_rate <= larger_fee_rate);
      37           0 :         assert(!(fee_rate >= larger_fee_rate));
      38           0 :         assert(fee_rate != larger_fee_rate);
      39           0 :     }
      40           0 : }