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 <span.h> 6 #include <test/fuzz/FuzzedDataProvider.h> 7 #include <test/fuzz/fuzz.h> 8 #include <test/fuzz/util.h> 9 10 #include <cassert> 11 #include <cstddef> 12 #include <cstdint> 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 20 std::string str = fuzzed_data_provider.ConsumeBytesAsString(32); 21 const Span<const char> span{str}; 22 (void)span.data(); 23 (void)span.begin(); 24 (void)span.end(); 25 if (span.size() > 0) { 26 const std::ptrdiff_t idx = fuzzed_data_provider.ConsumeIntegralInRange<std::ptrdiff_t>(0U, span.size() - 1U); 27 (void)span.first(idx); 28 (void)span.last(idx); 29 (void)span.subspan(idx); 30 (void)span.subspan(idx, span.size() - idx); 31 (void)span[idx]; 32 } 33 34 std::string another_str = fuzzed_data_provider.ConsumeBytesAsString(32); 35 const Span<const char> another_span{another_str}; 36 assert((span <= another_span) != (span > another_span)); 37 assert((span == another_span) != (span != another_span)); 38 assert((span >= another_span) != (span < another_span)); 39 } 40