hex.cpp raw

   1  // Copyright (c) 2019-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 <core_io.h>
   6  #include <primitives/block.h>
   7  #include <primitives/transaction_identifier.h>
   8  #include <pubkey.h>
   9  #include <rpc/util.h>
  10  #include <test/fuzz/fuzz.h>
  11  #include <uint256.h>
  12  #include <univalue.h>
  13  #include <util/strencodings.h>
  14  
  15  #include <algorithm>
  16  #include <cassert>
  17  #include <cstdint>
  18  #include <string>
  19  #include <vector>
  20  
  21  FUZZ_TARGET(hex)
  22  {
  23      const std::string random_hex_string(buffer.begin(), buffer.end());
  24      const std::vector<unsigned char> data = ParseHex(random_hex_string);
  25      const std::vector<std::byte> bytes{ParseHex<std::byte>(random_hex_string)};
  26      assert(std::ranges::equal(std::as_bytes(std::span{data}), bytes));
  27      const std::string hex_data = HexStr(data);
  28      if (IsHex(random_hex_string)) {
  29          assert(ToLower(random_hex_string) == hex_data);
  30      }
  31      if (uint256::FromHex(random_hex_string)) {
  32          assert(random_hex_string.length() == 64);
  33          assert(Txid::FromHex(random_hex_string));
  34          assert(Wtxid::FromHex(random_hex_string));
  35          assert(uint256::FromUserHex(random_hex_string));
  36      }
  37      if (const auto result{uint256::FromUserHex(random_hex_string)}) {
  38          const auto result_string{result->ToString()}; // ToString() returns a fixed-length string without "0x" prefix
  39          assert(result_string.length() == 64);
  40          assert(IsHex(result_string));
  41          assert(TryParseHex(result_string));
  42          assert(Txid::FromHex(result_string));
  43          assert(Wtxid::FromHex(result_string));
  44          assert(uint256::FromHex(result_string));
  45      }
  46      try {
  47          (void)HexToPubKey(random_hex_string);
  48      } catch (const UniValue&) {
  49      }
  50      CBlockHeader block_header;
  51      (void)DecodeHexBlockHeader(block_header, random_hex_string);
  52      CBlock block;
  53      (void)DecodeHexBlk(block, random_hex_string);
  54  }
  55