1 // Copyright (c) 2020 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 <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 test_one_input(const std::vector<uint8_t> & buffer)16void test_one_input(const std::vector<uint8_t>& buffer) 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 size_t bytes = fuzzed_data_provider.ConsumeIntegral<size_t>(); 24 if (!MultiplicationOverflow(static_cast<int64_t>(bytes), satoshis_per_k) && bytes <= static_cast<uint64_t>(std::numeric_limits<int64_t>::max())) { 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