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| author | Mehmet Samet Duman <yongdohyun@projecttick.org> | 2026-04-02 18:42:50 +0300 |
|---|---|---|
| committer | Mehmet Samet Duman <yongdohyun@projecttick.org> | 2026-04-02 18:42:50 +0300 |
| commit | 5fad10f89c485cfdc7b99011f07609f8871160d4 (patch) | |
| tree | 1860b39753b652dfe54d3cbbc80c875f40198d1f /json4cpp/tests/src/unit-msgpack.cpp | |
| parent | 292baed7ac0cf84263263966ed32ed113cae857f (diff) | |
| parent | 9a737481aed085fd289f82dff1fa8c3c66627a7e (diff) | |
| download | Project-Tick-5fad10f89c485cfdc7b99011f07609f8871160d4.tar.gz Project-Tick-5fad10f89c485cfdc7b99011f07609f8871160d4.zip | |
Add 'json4cpp/' from commit '9a737481aed085fd289f82dff1fa8c3c66627a7e'
git-subtree-dir: json4cpp
git-subtree-mainline: 292baed7ac0cf84263263966ed32ed113cae857f
git-subtree-split: 9a737481aed085fd289f82dff1fa8c3c66627a7e
Diffstat (limited to 'json4cpp/tests/src/unit-msgpack.cpp')
| -rw-r--r-- | json4cpp/tests/src/unit-msgpack.cpp | 1961 |
1 files changed, 1961 insertions, 0 deletions
diff --git a/json4cpp/tests/src/unit-msgpack.cpp b/json4cpp/tests/src/unit-msgpack.cpp new file mode 100644 index 0000000000..02fb7a2e40 --- /dev/null +++ b/json4cpp/tests/src/unit-msgpack.cpp @@ -0,0 +1,1961 @@ +// __ _____ _____ _____ +// __| | __| | | | JSON for Modern C++ (supporting code) +// | | |__ | | | | | | version 3.12.0 +// |_____|_____|_____|_|___| https://github.com/nlohmann/json +// +// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me> +// SPDX-License-Identifier: MIT + +#include "doctest_compatibility.h" + +#include <nlohmann/json.hpp> +using nlohmann::json; +#ifdef JSON_TEST_NO_GLOBAL_UDLS + using namespace nlohmann::literals; // NOLINT(google-build-using-namespace) +#endif + +#include <fstream> +#include <sstream> +#include <iomanip> +#include <limits> +#include <set> +#include "make_test_data_available.hpp" +#include "test_utils.hpp" + +namespace +{ +class SaxCountdown +{ + public: + explicit SaxCountdown(const int count) : events_left(count) + {} + + bool null() + { + return events_left-- > 0; + } + + bool boolean(bool /*unused*/) + { + return events_left-- > 0; + } + + bool number_integer(json::number_integer_t /*unused*/) + { + return events_left-- > 0; + } + + bool number_unsigned(json::number_unsigned_t /*unused*/) + { + return events_left-- > 0; + } + + bool number_float(json::number_float_t /*unused*/, const std::string& /*unused*/) + { + return events_left-- > 0; + } + + bool string(std::string& /*unused*/) + { + return events_left-- > 0; + } + + bool binary(std::vector<std::uint8_t>& /*unused*/) + { + return events_left-- > 0; + } + + bool start_object(std::size_t /*unused*/) + { + return events_left-- > 0; + } + + bool key(std::string& /*unused*/) + { + return events_left-- > 0; + } + + bool end_object() + { + return events_left-- > 0; + } + + bool start_array(std::size_t /*unused*/) + { + return events_left-- > 0; + } + + bool end_array() + { + return events_left-- > 0; + } + + bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const json::exception& /*unused*/) // NOLINT(readability-convert-member-functions-to-static) + { + return false; + } + + private: + int events_left = 0; +}; +} // namespace + +TEST_CASE("MessagePack") +{ + SECTION("individual values") + { + SECTION("discarded") + { + // discarded values are not serialized + json const j = json::value_t::discarded; + const auto result = json::to_msgpack(j); + CHECK(result.empty()); + } + + SECTION("null") + { + json const j = nullptr; + std::vector<uint8_t> const expected = {0xc0}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("boolean") + { + SECTION("true") + { + json const j = true; + std::vector<uint8_t> const expected = {0xc3}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("false") + { + json const j = false; + std::vector<uint8_t> const expected = {0xc2}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("number") + { + SECTION("signed") + { + SECTION("-32..-1 (negative fixnum)") + { + for (auto i = -32; i <= -1; ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json const j = i; + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + static_cast<uint8_t>(i) + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 1); + + // check individual bytes + CHECK(static_cast<int8_t>(result[0]) == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("0..127 (positive fixnum)") + { + for (size_t i = 0; i <= 127; ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json j = -1; + j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i); + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected{static_cast<uint8_t>(i)}; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 1); + + // check individual bytes + CHECK(result[0] == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("128..255 (int 8)") + { + for (size_t i = 128; i <= 255; ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json j = -1; + j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i); + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcc, + static_cast<uint8_t>(i), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 2); + + // check individual bytes + CHECK(result[0] == 0xcc); + auto const restored = static_cast<uint8_t>(result[1]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("256..65535 (int 16)") + { + for (size_t i = 256; i <= 65535; ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json j = -1; + j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i); + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcd, + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 3); + + // check individual bytes + CHECK(result[0] == 0xcd); + auto const restored = static_cast<uint16_t>((static_cast<uint8_t>(result[1]) * 256) + static_cast<uint8_t>(result[2])); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("65536..4294967295 (int 32)") + { + for (uint32_t i : + { + 65536u, 77777u, 1048576u, 4294967295u + }) + { + CAPTURE(i) + + // create JSON value with integer number + json j = -1; + j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i); + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xce, + static_cast<uint8_t>((i >> 24) & 0xff), + static_cast<uint8_t>((i >> 16) & 0xff), + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 5); + + // check individual bytes + CHECK(result[0] == 0xce); + uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) + + (static_cast<uint32_t>(result[2]) << 020) + + (static_cast<uint32_t>(result[3]) << 010) + + static_cast<uint32_t>(result[4]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("4294967296..9223372036854775807 (int 64)") + { + for (uint64_t i : + { + 4294967296LU, 9223372036854775807LU + }) + { + CAPTURE(i) + + // create JSON value with integer number + json j = -1; + j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i); + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcf, + static_cast<uint8_t>((i >> 070) & 0xff), + static_cast<uint8_t>((i >> 060) & 0xff), + static_cast<uint8_t>((i >> 050) & 0xff), + static_cast<uint8_t>((i >> 040) & 0xff), + static_cast<uint8_t>((i >> 030) & 0xff), + static_cast<uint8_t>((i >> 020) & 0xff), + static_cast<uint8_t>((i >> 010) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 9); + + // check individual bytes + CHECK(result[0] == 0xcf); + uint64_t const restored = (static_cast<uint64_t>(result[1]) << 070) + + (static_cast<uint64_t>(result[2]) << 060) + + (static_cast<uint64_t>(result[3]) << 050) + + (static_cast<uint64_t>(result[4]) << 040) + + (static_cast<uint64_t>(result[5]) << 030) + + (static_cast<uint64_t>(result[6]) << 020) + + (static_cast<uint64_t>(result[7]) << 010) + + static_cast<uint64_t>(result[8]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("-128..-33 (int 8)") + { + for (auto i = -128; i <= -33; ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json const j = i; + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xd0, + static_cast<uint8_t>(i), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 2); + + // check individual bytes + CHECK(result[0] == 0xd0); + CHECK(static_cast<int8_t>(result[1]) == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("-9263 (int 16)") + { + json const j = -9263; + std::vector<uint8_t> const expected = {0xd1, 0xdb, 0xd1}; + + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + auto const restored = static_cast<int16_t>((result[1] << 8) + result[2]); + CHECK(restored == -9263); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("-32768..-129 (int 16)") + { + for (int16_t i = -32768; i <= static_cast<std::int16_t>(-129); ++i) + { + CAPTURE(i) + + // create JSON value with integer number + json const j = i; + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xd1, + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 3); + + // check individual bytes + CHECK(result[0] == 0xd1); + auto const restored = static_cast<int16_t>((result[1] << 8) + result[2]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("-32769..-2147483648") + { + std::vector<int32_t> const numbers + { + -32769, + -65536, + -77777, + -1048576, + -2147483648LL, + }; + for (auto i : numbers) + { + CAPTURE(i) + + // create JSON value with integer number + json const j = i; + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xd2, + static_cast<uint8_t>((i >> 24) & 0xff), + static_cast<uint8_t>((i >> 16) & 0xff), + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 5); + + // check individual bytes + CHECK(result[0] == 0xd2); + uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) + + (static_cast<uint32_t>(result[2]) << 020) + + (static_cast<uint32_t>(result[3]) << 010) + + static_cast<uint32_t>(result[4]); + CHECK(static_cast<std::int32_t>(restored) == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("-9223372036854775808..-2147483649 (int 64)") + { + std::vector<int64_t> const numbers + { + (std::numeric_limits<int64_t>::min)(), + -2147483649LL, + }; + for (auto i : numbers) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_integer()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xd3, + static_cast<uint8_t>((i >> 070) & 0xff), + static_cast<uint8_t>((i >> 060) & 0xff), + static_cast<uint8_t>((i >> 050) & 0xff), + static_cast<uint8_t>((i >> 040) & 0xff), + static_cast<uint8_t>((i >> 030) & 0xff), + static_cast<uint8_t>((i >> 020) & 0xff), + static_cast<uint8_t>((i >> 010) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 9); + + // check individual bytes + CHECK(result[0] == 0xd3); + int64_t const restored = (static_cast<int64_t>(result[1]) << 070) + + (static_cast<int64_t>(result[2]) << 060) + + (static_cast<int64_t>(result[3]) << 050) + + (static_cast<int64_t>(result[4]) << 040) + + (static_cast<int64_t>(result[5]) << 030) + + (static_cast<int64_t>(result[6]) << 020) + + (static_cast<int64_t>(result[7]) << 010) + + static_cast<int64_t>(result[8]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + + SECTION("unsigned") + { + SECTION("0..127 (positive fixnum)") + { + for (size_t i = 0; i <= 127; ++i) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_unsigned()); + + // create expected byte vector + std::vector<uint8_t> const expected{static_cast<uint8_t>(i)}; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 1); + + // check individual bytes + CHECK(result[0] == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("128..255 (uint 8)") + { + for (size_t i = 128; i <= 255; ++i) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_unsigned()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcc, + static_cast<uint8_t>(i), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 2); + + // check individual bytes + CHECK(result[0] == 0xcc); + auto const restored = static_cast<uint8_t>(result[1]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("256..65535 (uint 16)") + { + for (size_t i = 256; i <= 65535; ++i) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_unsigned()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcd, + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 3); + + // check individual bytes + CHECK(result[0] == 0xcd); + auto const restored = static_cast<uint16_t>((static_cast<uint8_t>(result[1]) * 256) + static_cast<uint8_t>(result[2])); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("65536..4294967295 (uint 32)") + { + for (const uint32_t i : + { + 65536u, 77777u, 1048576u, 4294967295u + }) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_unsigned()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xce, + static_cast<uint8_t>((i >> 24) & 0xff), + static_cast<uint8_t>((i >> 16) & 0xff), + static_cast<uint8_t>((i >> 8) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 5); + + // check individual bytes + CHECK(result[0] == 0xce); + uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) + + (static_cast<uint32_t>(result[2]) << 020) + + (static_cast<uint32_t>(result[3]) << 010) + + static_cast<uint32_t>(result[4]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("4294967296..18446744073709551615 (uint 64)") + { + for (const uint64_t i : + { + 4294967296LU, 18446744073709551615LU + }) + { + CAPTURE(i) + + // create JSON value with unsigned integer number + json const j = i; + + // check type + CHECK(j.is_number_unsigned()); + + // create expected byte vector + std::vector<uint8_t> const expected + { + 0xcf, + static_cast<uint8_t>((i >> 070) & 0xff), + static_cast<uint8_t>((i >> 060) & 0xff), + static_cast<uint8_t>((i >> 050) & 0xff), + static_cast<uint8_t>((i >> 040) & 0xff), + static_cast<uint8_t>((i >> 030) & 0xff), + static_cast<uint8_t>((i >> 020) & 0xff), + static_cast<uint8_t>((i >> 010) & 0xff), + static_cast<uint8_t>(i & 0xff), + }; + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == 9); + + // check individual bytes + CHECK(result[0] == 0xcf); + uint64_t const restored = (static_cast<uint64_t>(result[1]) << 070) + + (static_cast<uint64_t>(result[2]) << 060) + + (static_cast<uint64_t>(result[3]) << 050) + + (static_cast<uint64_t>(result[4]) << 040) + + (static_cast<uint64_t>(result[5]) << 030) + + (static_cast<uint64_t>(result[6]) << 020) + + (static_cast<uint64_t>(result[7]) << 010) + + static_cast<uint64_t>(result[8]); + CHECK(restored == i); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + + SECTION("float") + { + SECTION("3.1415925") + { + double const v = 3.1415925; + json const j = v; + std::vector<uint8_t> const expected = + { + 0xcb, 0x40, 0x09, 0x21, 0xfb, 0x3f, 0xa6, 0xde, 0xfc + }; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result) == v); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("1.0") + { + double const v = 1.0; + json const j = v; + std::vector<uint8_t> const expected = + { + 0xca, 0x3f, 0x80, 0x00, 0x00 + }; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result) == v); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("128.128") + { + double const v = 128.1280059814453125; + json const j = v; + std::vector<uint8_t> const expected = + { + 0xca, 0x43, 0x00, 0x20, 0xc5 + }; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result) == v); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + + SECTION("string") + { + SECTION("N = 0..31") + { + // explicitly enumerate the first byte for all 32 strings + const std::vector<uint8_t> first_bytes = + { + 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, + 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, + 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, + 0xbb, 0xbc, 0xbd, 0xbe, 0xbf + }; + + for (size_t N = 0; N < first_bytes.size(); ++N) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::string(N, 'x'); + json const j = s; + + // create expected byte vector + std::vector<uint8_t> expected; + expected.push_back(first_bytes[N]); + for (size_t i = 0; i < N; ++i) + { + expected.push_back('x'); + } + + // check first byte + CHECK((first_bytes[N] & 0x1f) == N); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 1); + // check that no null byte is appended + if (N > 0) + { + CHECK(result.back() != '\x00'); + } + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 32..255") + { + for (size_t N = 32; N <= 255; ++N) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::string(N, 'x'); + json const j = s; + + // create expected byte vector + std::vector<uint8_t> expected; + expected.push_back(0xd9); + expected.push_back(static_cast<uint8_t>(N)); + for (size_t i = 0; i < N; ++i) + { + expected.push_back('x'); + } + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 2); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 256..65535") + { + for (size_t N : + { + 256u, 999u, 1025u, 3333u, 2048u, 65535u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::string(N, 'x'); + json const j = s; + + // create expected byte vector (hack: create string first) + std::vector<uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), 0xda); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 3); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 65536..4294967295") + { + for (size_t N : + { + 65536u, 77777u, 1048576u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::string(N, 'x'); + json const j = s; + + // create expected byte vector (hack: create string first) + std::vector<uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 16) & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 24) & 0xff)); + expected.insert(expected.begin(), 0xdb); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 5); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + + SECTION("array") + { + SECTION("empty") + { + json const j = json::array(); + std::vector<uint8_t> const expected = {0x90}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("[null]") + { + json const j = {nullptr}; + std::vector<uint8_t> const expected = {0x91, 0xc0}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("[1,2,3,4,5]") + { + json const j = json::parse("[1,2,3,4,5]"); + std::vector<uint8_t> const expected = {0x95, 0x01, 0x02, 0x03, 0x04, 0x05}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("[[[[]]]]") + { + json const j = json::parse("[[[[]]]]"); + std::vector<uint8_t> const expected = {0x91, 0x91, 0x91, 0x90}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("array 16") + { + json j(16, nullptr); + std::vector<uint8_t> expected(j.size() + 3, 0xc0); // all null + expected[0] = 0xdc; // array 16 + expected[1] = 0x00; // size (0x0010), byte 0 + expected[2] = 0x10; // size (0x0010), byte 1 + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("array 32") + { + json j(65536, nullptr); + std::vector<uint8_t> expected(j.size() + 5, 0xc0); // all null + expected[0] = 0xdd; // array 32 + expected[1] = 0x00; // size (0x00100000), byte 0 + expected[2] = 0x01; // size (0x00100000), byte 1 + expected[3] = 0x00; // size (0x00100000), byte 2 + expected[4] = 0x00; // size (0x00100000), byte 3 + const auto result = json::to_msgpack(j); + //CHECK(result == expected); + + CHECK(result.size() == expected.size()); + for (size_t i = 0; i < expected.size(); ++i) + { + CAPTURE(i) + CHECK(result[i] == expected[i]); + } + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("object") + { + SECTION("empty") + { + json const j = json::object(); + std::vector<uint8_t> const expected = {0x80}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("{\"\":null}") + { + json const j = {{"", nullptr}}; + std::vector<uint8_t> const expected = {0x81, 0xa0, 0xc0}; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("{\"a\": {\"b\": {\"c\": {}}}}") + { + json const j = json::parse(R"({"a": {"b": {"c": {}}}})"); + std::vector<uint8_t> const expected = + { + 0x81, 0xa1, 0x61, 0x81, 0xa1, 0x62, 0x81, 0xa1, 0x63, 0x80 + }; + const auto result = json::to_msgpack(j); + CHECK(result == expected); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("map 16") + { + json const j = R"({"00": null, "01": null, "02": null, "03": null, + "04": null, "05": null, "06": null, "07": null, + "08": null, "09": null, "10": null, "11": null, + "12": null, "13": null, "14": null, "15": null})"_json; + + const auto result = json::to_msgpack(j); + + // Checking against an expected vector byte by byte is + // difficult, because no assumption on the order of key/value + // pairs are made. We therefore only check the prefix (type and + // size) and the overall size. The rest is then handled in the + // roundtrip check. + CHECK(result.size() == 67); // 1 type, 2 size, 16*4 content + CHECK(result[0] == 0xde); // map 16 + CHECK(result[1] == 0x00); // byte 0 of size (0x0010) + CHECK(result[2] == 0x10); // byte 1 of size (0x0010) + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + + SECTION("map 32") + { + json j; + for (auto i = 0; i < 65536; ++i) + { + // format i to a fixed width of 5 + // each entry will need 7 bytes: 6 for fixstr, 1 for null + std::stringstream ss; + ss << std::setw(5) << std::setfill('0') << i; + j.emplace(ss.str(), nullptr); + } + + const auto result = json::to_msgpack(j); + + // Checking against an expected vector byte by byte is + // difficult, because no assumption on the order of key/value + // pairs are made. We therefore only check the prefix (type and + // size) and the overall size. The rest is then handled in the + // roundtrip check. + CHECK(result.size() == 458757); // 1 type, 4 size, 65536*7 content + CHECK(result[0] == 0xdf); // map 32 + CHECK(result[1] == 0x00); // byte 0 of size (0x00010000) + CHECK(result[2] == 0x01); // byte 1 of size (0x00010000) + CHECK(result[3] == 0x00); // byte 2 of size (0x00010000) + CHECK(result[4] == 0x00); // byte 3 of size (0x00010000) + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("extension") + { + SECTION("N = 0..255") + { + for (size_t N = 0; N <= 0xFF; ++N) + { + CAPTURE(N) + + // create JSON value with byte array containing of N * 'x' + const auto s = std::vector<uint8_t>(N, 'x'); + json j = json::binary(s); + std::uint8_t const subtype = 42; + j.get_binary().set_subtype(subtype); + + // create expected byte vector + std::vector<uint8_t> expected; + switch (N) + { + case 1: + expected.push_back(static_cast<std::uint8_t>(0xD4)); + break; + case 2: + expected.push_back(static_cast<std::uint8_t>(0xD5)); + break; + case 4: + expected.push_back(static_cast<std::uint8_t>(0xD6)); + break; + case 8: + expected.push_back(static_cast<std::uint8_t>(0xD7)); + break; + case 16: + expected.push_back(static_cast<std::uint8_t>(0xD8)); + break; + default: + expected.push_back(static_cast<std::uint8_t>(0xC7)); + expected.push_back(static_cast<std::uint8_t>(N)); + break; + } + expected.push_back(subtype); + + for (size_t i = 0; i < N; ++i) + { + expected.push_back(0x78); + } + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + switch (N) + { + case 1: + case 2: + case 4: + case 8: + case 16: + CHECK(result.size() == N + 2); + break; + default: + CHECK(result.size() == N + 3); + break; + } + + // check that no null byte is appended + if (N > 0) + { + CHECK(result.back() != '\x00'); + } + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 256..65535") + { + for (std::size_t N : + { + 256u, 999u, 1025u, 3333u, 2048u, 65535u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::vector<uint8_t>(N, 'x'); + json j = json::binary(s); + std::uint8_t const subtype = 42; + j.get_binary().set_subtype(subtype); + + // create expected byte vector (hack: create string first) + std::vector<uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), subtype); + expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), 0xC8); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 4); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 65536..4294967295") + { + for (std::size_t N : + { + 65536u, 77777u, 1048576u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::vector<uint8_t>(N, 'x'); + json j = json::binary(s); + std::uint8_t const subtype = 42; + j.get_binary().set_subtype(subtype); + + // create expected byte vector (hack: create string first) + std::vector<uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), subtype); + expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 16) & 0xff)); + expected.insert(expected.begin(), static_cast<uint8_t>((N >> 24) & 0xff)); + expected.insert(expected.begin(), 0xC9); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 6); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + + SECTION("binary") + { + SECTION("N = 0..255") + { + for (std::size_t N = 0; N <= 0xFF; ++N) + { + CAPTURE(N) + + // create JSON value with byte array containing of N * 'x' + const auto s = std::vector<uint8_t>(N, 'x'); + json const j = json::binary(s); + + // create expected byte vector + std::vector<std::uint8_t> expected; + expected.push_back(static_cast<std::uint8_t>(0xC4)); + expected.push_back(static_cast<std::uint8_t>(N)); + for (size_t i = 0; i < N; ++i) + { + expected.push_back(0x78); + } + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 2); + // check that no null byte is appended + if (N > 0) + { + CHECK(result.back() != '\x00'); + } + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 256..65535") + { + for (std::size_t N : + { + 256u, 999u, 1025u, 3333u, 2048u, 65535u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::vector<std::uint8_t>(N, 'x'); + json const j = json::binary(s); + + // create expected byte vector (hack: create string first) + std::vector<std::uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), static_cast<std::uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<std::uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), 0xC5); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 3); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + + SECTION("N = 65536..4294967295") + { + for (std::size_t N : + { + 65536u, 77777u, 1048576u + }) + { + CAPTURE(N) + + // create JSON value with string containing of N * 'x' + const auto s = std::vector<std::uint8_t>(N, 'x'); + json const j = json::binary(s); + + // create expected byte vector (hack: create string first) + std::vector<uint8_t> expected(N, 'x'); + // reverse order of commands, because we insert at begin() + expected.insert(expected.begin(), static_cast<std::uint8_t>(N & 0xff)); + expected.insert(expected.begin(), static_cast<std::uint8_t>((N >> 8) & 0xff)); + expected.insert(expected.begin(), static_cast<std::uint8_t>((N >> 16) & 0xff)); + expected.insert(expected.begin(), static_cast<std::uint8_t>((N >> 24) & 0xff)); + expected.insert(expected.begin(), 0xC6); + + // compare result + size + const auto result = json::to_msgpack(j); + CHECK(result == expected); + CHECK(result.size() == N + 5); + // check that no null byte is appended + CHECK(result.back() != '\x00'); + + // roundtrip + CHECK(json::from_msgpack(result) == j); + CHECK(json::from_msgpack(result, true, false) == j); + } + } + } + } + + SECTION("from float32") + { + auto given = std::vector<uint8_t>({0xca, 0x41, 0xc8, 0x00, 0x01}); + json const j = json::from_msgpack(given); + CHECK(j.get<double>() == Approx(25.0000019073486)); + } + + SECTION("errors") + { + SECTION("empty byte vector") + { + json _; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>()), "[json.exception.parse_error.110] parse error at byte 1: syntax error while parsing MessagePack value: unexpected end of input", json::parse_error&); + CHECK(json::from_msgpack(std::vector<uint8_t>(), true, false).is_discarded()); + } + + SECTION("too short byte vector") + { + json _; + + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0x87})), + "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack string: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcc})), + "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcd})), + "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcd, 0x00})), + "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xce})), + "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xce, 0x00})), + "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 5: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf})), + "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00})), + "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 5: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 6: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 7: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 8: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00})), + "[json.exception.parse_error.110] parse error at byte 9: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xa5, 0x68, 0x65})), + "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing MessagePack string: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0x92, 0x01})), + "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing MessagePack value: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0x81, 0xa1, 0x61})), + "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing MessagePack value: unexpected end of input", json::parse_error&); + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xc4, 0x02})), + "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing MessagePack binary: unexpected end of input", json::parse_error&); + + CHECK(json::from_msgpack(std::vector<uint8_t>({0x87}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcc}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcd}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcd, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xce}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xce, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xcf, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xa5, 0x68, 0x65}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0x92, 0x01}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0x81, 0xA1, 0x61}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xc4, 0x02}), true, false).is_discarded()); + CHECK(json::from_msgpack(std::vector<uint8_t>({0xc4}), true, false).is_discarded()); + } + + SECTION("unexpected end inside int with stream") + { + json _; + const std::string data = {static_cast<char>(0xd2u), static_cast<char>(0x12u), static_cast<char>(0x34u), static_cast<char>(0x56u)}; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::istringstream(data, std::ios::binary)), + "[json.exception.parse_error.110] parse error at byte 5: syntax error while parsing MessagePack number: unexpected end of input", json::parse_error&); + } + SECTION("misuse wchar for binary") + { + json _; + // creates 0xd2 after UTF-8 decoding, triggers get_elements in wide_string_input_adapter for code coverage + const std::u32string data = {static_cast<char32_t>(0x0280)}; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(data), + "[json.exception.parse_error.112] parse error at byte 1: wide string type cannot be interpreted as binary data", json::parse_error&); + } + + SECTION("unsupported bytes") + { + SECTION("concrete examples") + { + json _; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0xc1})), "[json.exception.parse_error.112] parse error at byte 1: syntax error while parsing MessagePack value: invalid byte: 0xC1", json::parse_error&); + } + + SECTION("all unsupported bytes") + { + for (auto byte : + { + // never used + 0xc1 + }) + { + json _; + CHECK_THROWS_AS(_ = json::from_msgpack(std::vector<uint8_t>({static_cast<uint8_t>(byte)})), json::parse_error&); + CHECK(json::from_msgpack(std::vector<uint8_t>({static_cast<uint8_t>(byte)}), true, false).is_discarded()); + } + } + } + + SECTION("invalid string in map") + { + json _; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(std::vector<uint8_t>({0x81, 0xff, 0x01})), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing MessagePack string: expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0xFF", json::parse_error&); + CHECK(json::from_msgpack(std::vector<uint8_t>({0x81, 0xff, 0x01}), true, false).is_discarded()); + } + + SECTION("strict mode") + { + std::vector<uint8_t> const vec = {0xc0, 0xc0}; + SECTION("non-strict mode") + { + const auto result = json::from_msgpack(vec, false); + CHECK(result == json()); + } + + SECTION("strict mode") + { + json _; + CHECK_THROWS_WITH_AS(_ = json::from_msgpack(vec), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing MessagePack value: expected end of input; last byte: 0xC0", json::parse_error&); + CHECK(json::from_msgpack(vec, true, false).is_discarded()); + } + } + } + + SECTION("SAX aborts") + { + SECTION("start_array(len)") + { + std::vector<uint8_t> const v = {0x93, 0x01, 0x02, 0x03}; + SaxCountdown scp(0); + CHECK(!json::sax_parse(v, &scp, json::input_format_t::msgpack)); + } + + SECTION("start_object(len)") + { + std::vector<uint8_t> const v = {0x81, 0xa3, 0x66, 0x6F, 0x6F, 0xc2}; + SaxCountdown scp(0); + CHECK(!json::sax_parse(v, &scp, json::input_format_t::msgpack)); + } + + SECTION("key()") + { + std::vector<uint8_t> const v = {0x81, 0xa3, 0x66, 0x6F, 0x6F, 0xc2}; + SaxCountdown scp(1); + CHECK(!json::sax_parse(v, &scp, json::input_format_t::msgpack)); + } + } +} + +// use this testcase outside [hide] to run it with Valgrind +TEST_CASE("single MessagePack roundtrip") +{ + SECTION("sample.json") + { + std::string const filename = TEST_DATA_DIRECTORY "/json_testsuite/sample.json"; + + // parse JSON file + std::ifstream f_json(filename); + const json j1 = json::parse(f_json); + + // parse MessagePack file + auto packed = utils::read_binary_file(filename + ".msgpack"); + json j2; + CHECK_NOTHROW(j2 = json::from_msgpack(packed)); + + // compare parsed JSON values + CHECK(j1 == j2); + + SECTION("roundtrips") + { + SECTION("std::ostringstream") + { + std::basic_ostringstream<char> ss; + json::to_msgpack(j1, ss); + json j3 = json::from_msgpack(ss.str()); + CHECK(j1 == j3); + } + + SECTION("std::string") + { + std::string s; + json::to_msgpack(j1, s); + json j3 = json::from_msgpack(s); + CHECK(j1 == j3); + } + } + + // check with different start index + packed.insert(packed.begin(), 5, 0xff); + CHECK(j1 == json::from_msgpack(packed.begin() + 5, packed.end())); + } +} + +TEST_CASE("MessagePack roundtrips" * doctest::skip()) +{ + SECTION("input from msgpack-python") + { + // most of these are excluded due to differences in key order (not a real problem) + std::set<std::string> exclude_packed; + exclude_packed.insert(TEST_DATA_DIRECTORY "/json.org/1.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/json.org/2.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/json.org/3.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/json.org/4.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/json.org/5.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/json_testsuite/sample.json"); // kills AppVeyor + exclude_packed.insert(TEST_DATA_DIRECTORY "/json_tests/pass1.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/regression/working_file.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_basic.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_duplicated_key.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_long_strings.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_simple.json"); + exclude_packed.insert(TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_string_unicode.json"); + + for (std::string filename : + { + TEST_DATA_DIRECTORY "/json_nlohmann_tests/all_unicode.json", + TEST_DATA_DIRECTORY "/json.org/1.json", + TEST_DATA_DIRECTORY "/json.org/2.json", + TEST_DATA_DIRECTORY "/json.org/3.json", + TEST_DATA_DIRECTORY "/json.org/4.json", + TEST_DATA_DIRECTORY "/json.org/5.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip01.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip02.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip03.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip04.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip05.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip06.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip07.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip08.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip09.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip10.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip11.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip12.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip13.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip14.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip15.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip16.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip17.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip18.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip19.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip20.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip21.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip22.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip23.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip24.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip25.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip26.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip27.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip28.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip29.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip30.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip31.json", + TEST_DATA_DIRECTORY "/json_roundtrip/roundtrip32.json", + TEST_DATA_DIRECTORY "/json_testsuite/sample.json", // kills AppVeyor + TEST_DATA_DIRECTORY "/json_tests/pass1.json", + TEST_DATA_DIRECTORY "/json_tests/pass2.json", + TEST_DATA_DIRECTORY "/json_tests/pass3.json", + TEST_DATA_DIRECTORY "/regression/floats.json", + TEST_DATA_DIRECTORY "/regression/signed_ints.json", + TEST_DATA_DIRECTORY "/regression/unsigned_ints.json", + TEST_DATA_DIRECTORY "/regression/working_file.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_arraysWithSpaces.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_empty-string.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_empty.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_ending_with_newline.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_false.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_heterogeneous.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_null.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_with_1_and_newline.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_with_leading_space.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_with_several_null.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_array_with_trailing_space.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_0e+1.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_0e1.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_after_space.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_double_close_to_zero.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_double_huge_neg_exp.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_huge_exp.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_int_with_exp.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_minus_zero.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_negative_int.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_negative_one.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_negative_zero.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_capital_e.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_capital_e_neg_exp.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_capital_e_pos_exp.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_exponent.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_fraction_exponent.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_neg_exp.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_neg_overflow.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_pos_exponent.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_pos_overflow.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_real_underflow.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_simple_int.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_simple_real.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_too_big_neg_int.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_too_big_pos_int.json", + //TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_number_very_big_negative_int.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_basic.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_duplicated_key.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_duplicated_key_and_value.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_empty.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_empty_key.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_escaped_null_in_key.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_extreme_numbers.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_long_strings.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_simple.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_string_unicode.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_object_with_newlines.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_1_2_3_bytes_UTF-8_sequences.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_UTF-16_Surrogates_U+1D11E_MUSICAL_SYMBOL_G_CLEF.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_accepted_surrogate_pair.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_accepted_surrogate_pairs.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_allowed_escapes.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_backslash_and_u_escaped_zero.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_backslash_doublequotes.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_comments.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_double_escape_a.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_double_escape_n.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_escaped_control_character.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_escaped_noncharacter.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_in_array.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_in_array_with_leading_space.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_last_surrogates_1_and_2.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_newline_uescaped.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_nonCharacterInUTF-8_U+10FFFF.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_nonCharacterInUTF-8_U+1FFFF.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_nonCharacterInUTF-8_U+FFFF.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_null_escape.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_one-byte-utf-8.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_pi.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_simple_ascii.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_space.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_three-byte-utf-8.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_two-byte-utf-8.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_u+2028_line_sep.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_u+2029_par_sep.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_uEscape.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unescaped_char_delete.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicode.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicodeEscapedBackslash.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicode_2.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicode_U+200B_ZERO_WIDTH_SPACE.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicode_U+2064_invisible_plus.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_unicode_escaped_double_quote.json", + // TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_utf16.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_utf8.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_string_with_del_character.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_false.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_int.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_negative_real.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_null.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_string.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_lonely_true.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_string_empty.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_trailing_newline.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_true_in_array.json", + TEST_DATA_DIRECTORY "/nst_json_testsuite/test_parsing/y_structure_whitespace_array.json" + }) + { + CAPTURE(filename) + + { + INFO_WITH_TEMP(filename + ": std::vector<uint8_t>"); + // parse JSON file + std::ifstream f_json(filename); + const json j1 = json::parse(f_json); + + // parse MessagePack file + auto packed = utils::read_binary_file(filename + ".msgpack"); + json j2; + CHECK_NOTHROW(j2 = json::from_msgpack(packed)); + + // compare parsed JSON values + CHECK(j1 == j2); + } + + { + INFO_WITH_TEMP(filename + ": std::ifstream"); + // parse JSON file + std::ifstream f_json(filename); + const json j1 = json::parse(f_json); + + // parse MessagePack file + std::ifstream f_msgpack(filename + ".msgpack", std::ios::binary); + json j2; + CHECK_NOTHROW(j2 = json::from_msgpack(f_msgpack)); + + // compare parsed JSON values + CHECK(j1 == j2); + } + + { + INFO_WITH_TEMP(filename + ": uint8_t* and size"); + // parse JSON file + std::ifstream f_json(filename); + const json j1 = json::parse(f_json); + + // parse MessagePack file + auto packed = utils::read_binary_file(filename + ".msgpack"); + json j2; + CHECK_NOTHROW(j2 = json::from_msgpack({packed.data(), packed.size()})); + + // compare parsed JSON values + CHECK(j1 == j2); + } + + { + INFO_WITH_TEMP(filename + ": output to output adapters"); + // parse JSON file + std::ifstream f_json(filename); + json const j1 = json::parse(f_json); + + // parse MessagePack file + auto packed = utils::read_binary_file(filename + ".msgpack"); + + if (exclude_packed.count(filename) == 0u) + { + { + INFO_WITH_TEMP(filename + ": output adapters: std::vector<uint8_t>"); + std::vector<uint8_t> vec; + json::to_msgpack(j1, vec); + CHECK(vec == packed); + } + } + } + } + } +} + +#ifdef JSON_HAS_CPP_17 +// Test suite for verifying MessagePack handling with std::byte input +TEST_CASE("MessagePack with std::byte") +{ + + SECTION("std::byte compatibility") + { + SECTION("vector roundtrip") + { + json original = + { + {"name", "test"}, + {"value", 42}, + {"array", {1, 2, 3}} + }; + + std::vector<uint8_t> temp = json::to_msgpack(original); + // Convert the uint8_t vector to std::byte vector + std::vector<std::byte> msgpack_data(temp.size()); + for (size_t i = 0; i < temp.size(); ++i) + { + msgpack_data[i] = std::byte(temp[i]); + } + // Deserialize from std::byte vector back to JSON + json from_bytes; + CHECK_NOTHROW(from_bytes = json::from_msgpack(msgpack_data)); + + CHECK(from_bytes == original); + } + + SECTION("empty vector") + { + const std::vector<std::byte> empty_data; + CHECK_THROWS_WITH_AS([&]() + { + [[maybe_unused]] auto result = json::from_msgpack(empty_data); + return true; + } + (), + "[json.exception.parse_error.110] parse error at byte 1: syntax error while parsing MessagePack value: unexpected end of input", + json::parse_error&); + } + + SECTION("comparison with workaround") + { + json original = + { + {"string", "hello"}, + {"integer", 42}, + {"float", 3.14}, + {"boolean", true}, + {"null", nullptr}, + {"array", {1, 2, 3}}, + {"object", {{"key", "value"}}} + }; + + std::vector<uint8_t> temp = json::to_msgpack(original); + + std::vector<std::byte> msgpack_data(temp.size()); + for (size_t i = 0; i < temp.size(); ++i) + { + msgpack_data[i] = std::byte(temp[i]); + } + // Attempt direct deserialization using std::byte input + const json direct_result = json::from_msgpack(msgpack_data); + + // Test the workaround approach: reinterpret as unsigned char* and use iterator range + const auto* const char_start = reinterpret_cast<unsigned char const*>(msgpack_data.data()); + const auto* const char_end = char_start + msgpack_data.size(); + json workaround_result = json::from_msgpack(char_start, char_end); + + // Verify that the final deserialized JSON matches the original JSON + CHECK(direct_result == workaround_result); + CHECK(direct_result == original); + } + } +} +#endif |