text: // Copyright (c) 2020 The TNGC Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #include <span.h>
  #include <test/fuzz/FuzzedDataProvider.h>
  #include <test/fuzz/fuzz.h>
  #include <test/fuzz/util.h>
  
  #include <cassert>
  #include <cstddef>
  #include <cstdint>
  #include <string>
  #include <vector>
  
  void test_one_input(const std::vector<uint8_t>& buffer)
  {
      FuzzedDataProvider fuzzed_data_provider(buffer.data(), buffer.size());
  
      std::string str = fuzzed_data_provider.ConsumeBytesAsString(32);
      const Span<const char> span{str};
      (void)span.data();
      (void)span.begin();
      (void)span.end();
      if (span.size() > 0) {
          const std::ptrdiff_t idx = fuzzed_data_provider.ConsumeIntegralInRange<std::ptrdiff_t>(0U, span.size() - 1U);
          (void)span.first(idx);
          (void)span.last(idx);
          (void)span.subspan(idx);
          (void)span.subspan(idx, span.size() - idx);
          (void)span[idx];
      }
  
      std::string another_str = fuzzed_data_provider.ConsumeBytesAsString(32);
      const Span<const char> another_span{another_str};
      assert((span <= another_span) != (span > another_span));
      assert((span == another_span) != (span != another_span));
      assert((span >= another_span) != (span < another_span));
  }
  