kitchen_sink.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 <common/messages.h>
   6  #include <merkleblock.h>
   7  #include <node/types.h>
   8  #include <policy/fees/block_policy_estimator.h>
   9  #include <rpc/util.h>
  10  #include <test/fuzz/FuzzedDataProvider.h>
  11  #include <test/fuzz/fuzz.h>
  12  #include <test/fuzz/util.h>
  13  #include <util/translation.h>
  14  
  15  #include <array>
  16  #include <cstdint>
  17  #include <optional>
  18  #include <vector>
  19  
  20  using common::TransactionErrorString;
  21  using node::TransactionError;
  22  
  23  namespace {
  24  constexpr TransactionError ALL_TRANSACTION_ERROR[] = {
  25      TransactionError::MISSING_INPUTS,
  26      TransactionError::ALREADY_IN_UTXO_SET,
  27      TransactionError::MEMPOOL_REJECTED,
  28      TransactionError::MEMPOOL_ERROR,
  29      TransactionError::MAX_FEE_EXCEEDED,
  30  };
  31  }; // namespace
  32  
  33  // The fuzzing kitchen sink: Fuzzing harness for functions that need to be
  34  // fuzzed but a.) don't belong in any existing fuzzing harness file, and
  35  // b.) are not important enough to warrant their own fuzzing harness file.
  36  FUZZ_TARGET(kitchen_sink)
  37  {
  38      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  39  
  40      const TransactionError transaction_error = fuzzed_data_provider.PickValueInArray(ALL_TRANSACTION_ERROR);
  41      (void)JSONRPCTransactionError(transaction_error);
  42      (void)RPCErrorFromTransactionError(transaction_error);
  43      (void)TransactionErrorString(transaction_error);
  44  
  45      (void)StringForFeeEstimateHorizon(fuzzed_data_provider.PickValueInArray(ALL_FEE_ESTIMATE_HORIZONS));
  46  
  47      const OutputType output_type = fuzzed_data_provider.PickValueInArray(OUTPUT_TYPES);
  48      const std::string& output_type_string = FormatOutputType(output_type);
  49      const std::optional<OutputType> parsed = ParseOutputType(output_type_string);
  50      assert(parsed);
  51      assert(output_type == parsed.value());
  52      (void)ParseOutputType(fuzzed_data_provider.ConsumeRandomLengthString(64));
  53  
  54      const std::vector<uint8_t> bytes = ConsumeRandomLengthByteVector(fuzzed_data_provider);
  55      const std::vector<bool> bits = BytesToBits(bytes);
  56      const std::vector<uint8_t> bytes_decoded = BitsToBytes(bits);
  57      assert(bytes == bytes_decoded);
  58  }
  59