json/tests/src/unit-bjdata.cpp

/*
    __ _____ _____ _____
 __|  |   __|     |   | |  JSON for Modern C++ (test suite)
|  |  |__   |  |  | | | |  version 3.10.5
|_____|_____|_____|_|___|  https://github.com/nlohmann/json

Licensed under the MIT License <http://opensource.org/licenses/MIT>.
SPDX-License-Identifier: MIT
Copyright (c) 2013-2022 Niels Lohmann <http://nlohmann.me>.

Permission is hereby  granted, free of charge, to any  person obtaining a copy
of this software and associated  documentation files (the "Software"), to deal
in the Software  without restriction, including without  limitation the rights
to  use, copy,  modify, merge,  publish, distribute,  sublicense, and/or  sell
copies  of  the Software,  and  to  permit persons  to  whom  the Software  is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE  IS PROVIDED "AS  IS", WITHOUT WARRANTY  OF ANY KIND,  EXPRESS OR
IMPLIED,  INCLUDING BUT  NOT  LIMITED TO  THE  WARRANTIES OF  MERCHANTABILITY,
FITNESS FOR  A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT  SHALL THE
AUTHORS  OR COPYRIGHT  HOLDERS  BE  LIABLE FOR  ANY  CLAIM,  DAMAGES OR  OTHER
LIABILITY, WHETHER IN AN ACTION OF  CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

#include "doctest_compatibility.h"

#include <climits>
#include <limits>
#include <nlohmann/json.hpp>
using nlohmann::json;

#include <iostream>
#include <fstream>
#include <set>
#include <test_data.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

// at some point in the future, a unit test dedicated to type traits might be a good idea
template <typename OfType, typename T, bool MinInRange, bool MaxInRange>
struct trait_test_arg
{
    using of_type = OfType;
    using type = T;
    static constexpr bool min_in_range = MinInRange;
    static constexpr bool max_in_range = MaxInRange;
};

TEST_CASE_TEMPLATE_DEFINE("value_in_range_of trait", T, value_in_range_of_test)
{
    using nlohmann::detail::value_in_range_of;

    using of_type = typename T::of_type;
    using type = typename T::type;
    constexpr bool min_in_range = T::min_in_range;
    constexpr bool max_in_range = T::max_in_range;

    type val_min = std::numeric_limits<type>::min();
    type val_min2 = val_min + 1;
    type val_max = std::numeric_limits<type>::max();
    type val_max2 = val_max - 1;

    REQUIRE(CHAR_BIT == 8);

    std::string of_type_str;
    if (std::is_unsigned<of_type>::value)
    {
        of_type_str += "u";
    }
    of_type_str += "int";
    of_type_str += std::to_string(sizeof(of_type) * 8);

    INFO("of_type := ", of_type_str);

    std::string type_str;
    if (std::is_unsigned<type>::value)
    {
        type_str += "u";
    }
    type_str += "int";
    type_str += std::to_string(sizeof(type) * 8);

    INFO("type := ", type_str);

    CAPTURE(val_min);
    CAPTURE(min_in_range);
    CAPTURE(val_max);
    CAPTURE(max_in_range);

    if (min_in_range)
    {
        CHECK(value_in_range_of<of_type>(val_min));
        CHECK(value_in_range_of<of_type>(val_min2));
    }
    else
    {
        CHECK_FALSE(value_in_range_of<of_type>(val_min));
        CHECK_FALSE(value_in_range_of<of_type>(val_min2));
    }

    if (max_in_range)
    {
        CHECK(value_in_range_of<of_type>(val_max));
        CHECK(value_in_range_of<of_type>(val_max2));
    }
    else
    {
        CHECK_FALSE(value_in_range_of<of_type>(val_max));
        CHECK_FALSE(value_in_range_of<of_type>(val_max2));
    }
}

TEST_CASE_TEMPLATE_INVOKE(value_in_range_of_test, \
                          trait_test_arg<std::int32_t, std::int32_t, true, true>, \
                          trait_test_arg<std::int32_t, std::uint32_t, true, false>, \
                          trait_test_arg<std::uint32_t, std::int32_t, false, true>, \
                          trait_test_arg<std::uint32_t, std::uint32_t, true, true>, \
                          trait_test_arg<std::int32_t, std::int64_t, false, false>, \
                          trait_test_arg<std::int32_t, std::uint64_t, true, false>, \
                          trait_test_arg<std::uint32_t, std::int64_t, false, false>, \
                          trait_test_arg<std::uint32_t, std::uint64_t, true, false>, \
                          trait_test_arg<std::int64_t, std::int32_t, true, true>, \
                          trait_test_arg<std::int64_t, std::uint32_t, true, true>, \
                          trait_test_arg<std::uint64_t, std::int32_t, false, true>, \
                          trait_test_arg<std::uint64_t, std::uint32_t, true, true>, \
                          trait_test_arg<std::int64_t, std::int64_t, true, true>, \
                          trait_test_arg<std::int64_t, std::uint64_t, true, false>, \
                          trait_test_arg<std::uint64_t, std::int64_t, false, true>, \
                          trait_test_arg<std::uint64_t, std::uint64_t, true, true>);

#if SIZE_MAX == 0xffffffff
TEST_CASE_TEMPLATE_INVOKE(value_in_range_of_test, \
                          trait_test_arg<std::size_t, std::int32_t, false, true>, \
                          trait_test_arg<std::size_t, std::uint32_t, true, true>, \
                          trait_test_arg<std::size_t, std::int64_t, false, false>, \
                          trait_test_arg<std::size_t, std::uint64_t, true, false>);
#else
TEST_CASE_TEMPLATE_INVOKE(value_in_range_of_test, \
                          trait_test_arg<std::size_t, std::int32_t, false, true>, \
                          trait_test_arg<std::size_t, std::uint32_t, true, true>, \
                          trait_test_arg<std::size_t, std::int64_t, false, true>, \
                          trait_test_arg<std::size_t, std::uint64_t, true, true>);
#endif

TEST_CASE("BJData")
{
    SECTION("individual values")
    {
        SECTION("discarded")
        {
            // discarded values are not serialized
            json j = json::value_t::discarded;
            const auto result = json::to_bjdata(j);
            CHECK(result.empty());
        }

        SECTION("null")
        {
            json j = nullptr;
            std::vector<uint8_t> expected = {'Z'};
            const auto result = json::to_bjdata(j);
            CHECK(result == expected);

            // roundtrip
            CHECK(json::from_bjdata(result) == j);
            CHECK(json::from_bjdata(result, true, false) == j);
        }

        SECTION("boolean")
        {
            SECTION("true")
            {
                json j = true;
                std::vector<uint8_t> expected = {'T'};
                const auto result = json::to_bjdata(j);
                CHECK(result == expected);

                // roundtrip
                CHECK(json::from_bjdata(result) == j);
                CHECK(json::from_bjdata(result, true, false) == j);
            }

            SECTION("false")
            {
                json j = false;
                std::vector<uint8_t> expected = {'F'};
                const auto result = json::to_bjdata(j);
                CHECK(result == expected);

                // roundtrip
                CHECK(json::from_bjdata(result) == j);
                CHECK(json::from_bjdata(result, true, false) == j);
            }
        }

        SECTION("number")
        {
            SECTION("signed")
            {
                SECTION("-9223372036854775808..-2147483649 (int64)")
                {
                    std::vector<int64_t> numbers;
                    numbers.push_back((std::numeric_limits<int64_t>::min)());
                    numbers.push_back(-1000000000000000000LL);
                    numbers.push_back(-100000000000000000LL);
                    numbers.push_back(-10000000000000000LL);
                    numbers.push_back(-1000000000000000LL);
                    numbers.push_back(-100000000000000LL);
                    numbers.push_back(-10000000000000LL);
                    numbers.push_back(-1000000000000LL);
                    numbers.push_back(-100000000000LL);
                    numbers.push_back(-10000000000LL);
                    numbers.push_back(-2147483649LL);
                    for (auto i : numbers)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_integer());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back(static_cast<uint8_t>('L'));
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 32) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 40) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 48) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 56) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 9);

                        // check individual bytes
                        CHECK(result[0] == 'L');
                        int64_t restored = (static_cast<int64_t>(result[8]) << 070) +
                                           (static_cast<int64_t>(result[7]) << 060) +
                                           (static_cast<int64_t>(result[6]) << 050) +
                                           (static_cast<int64_t>(result[5]) << 040) +
                                           (static_cast<int64_t>(result[4]) << 030) +
                                           (static_cast<int64_t>(result[3]) << 020) +
                                           (static_cast<int64_t>(result[2]) << 010) +
                                           static_cast<int64_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("-2147483648..-32769 (int32)")
                {
                    std::vector<int32_t> numbers;
                    numbers.push_back(-32769);
                    numbers.push_back(-100000);
                    numbers.push_back(-1000000);
                    numbers.push_back(-10000000);
                    numbers.push_back(-100000000);
                    numbers.push_back(-1000000000);
                    numbers.push_back(-2147483647 - 1); // https://stackoverflow.com/a/29356002/266378
                    for (auto i : numbers)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_integer());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back(static_cast<uint8_t>('l'));
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 5);

                        // check individual bytes
                        CHECK(result[0] == 'l');
                        int32_t restored = (static_cast<int32_t>(result[4]) << 030) +
                                           (static_cast<int32_t>(result[3]) << 020) +
                                           (static_cast<int32_t>(result[2]) << 010) +
                                           static_cast<int32_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("-32768..-129 (int16)")
                {
                    for (int32_t i = -32768; i <= -129; ++i)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_integer());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back(static_cast<uint8_t>('I'));
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 3);

                        // check individual bytes
                        CHECK(result[0] == 'I');
                        auto restored = static_cast<int16_t>(((result[2] << 8) + result[1]));
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("-9263 (int16)")
                {
                    json j = -9263;
                    std::vector<uint8_t> expected = {'I', 0xd1, 0xdb};

                    // compare result + size
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == 3);

                    // check individual bytes
                    CHECK(result[0] == 'I');
                    auto restored = static_cast<int16_t>(((result[2] << 8) + result[1]));
                    CHECK(restored == -9263);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("-128..-1 (int8)")
                {
                    for (auto i = -128; i <= -1; ++i)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_integer());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('i');
                        expected.push_back(static_cast<uint8_t>(i));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 2);

                        // check individual bytes
                        CHECK(result[0] == 'i');
                        CHECK(static_cast<int8_t>(result[1]) == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("0..127 (int8)")
                {
                    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> expected;
                        expected.push_back(static_cast<uint8_t>('i'));
                        expected.push_back(static_cast<uint8_t>(i));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 2);

                        // check individual bytes
                        CHECK(result[0] == 'i');
                        CHECK(result[1] == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("128..255 (uint8)")
                {
                    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> expected;
                        expected.push_back(static_cast<uint8_t>('U'));
                        expected.push_back(static_cast<uint8_t>(i));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 2);

                        // check individual bytes
                        CHECK(result[0] == 'U');
                        CHECK(result[1] == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("256..32767 (int16)")
                {
                    for (size_t i = 256; i <= 32767; ++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> expected;
                        expected.push_back(static_cast<uint8_t>('I'));
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 3);

                        // check individual bytes
                        CHECK(result[0] == 'I');
                        auto restored = static_cast<uint16_t>(static_cast<uint8_t>(result[2]) * 256 + static_cast<uint8_t>(result[1]));
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("32768..65535 (uint16)")
                {
                    for (uint32_t i :
                            {
                                32768u, 55555u, 65535u
                            })
                    {
                        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> expected;
                        expected.push_back(static_cast<uint8_t>('u'));
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 3);

                        // check individual bytes
                        CHECK(result[0] == 'u');
                        auto restored = static_cast<uint16_t>(static_cast<uint8_t>(result[2]) * 256 + static_cast<uint8_t>(result[1]));
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("65536..2147483647 (int32)")
                {
                    for (uint32_t i :
                            {
                                65536u, 77777u, 2147483647u
                            })
                    {
                        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> expected;
                        expected.push_back('l');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 5);

                        // check individual bytes
                        CHECK(result[0] == 'l');
                        uint32_t restored = (static_cast<uint32_t>(result[4]) << 030) +
                                            (static_cast<uint32_t>(result[3]) << 020) +
                                            (static_cast<uint32_t>(result[2]) << 010) +
                                            static_cast<uint32_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("2147483648..4294967295 (uint32)")
                {
                    for (uint32_t i :
                            {
                                2147483648u, 3333333333u, 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> expected;
                        expected.push_back('m');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 5);

                        // check individual bytes
                        CHECK(result[0] == 'm');
                        uint32_t restored = (static_cast<uint32_t>(result[4]) << 030) +
                                            (static_cast<uint32_t>(result[3]) << 020) +
                                            (static_cast<uint32_t>(result[2]) << 010) +
                                            static_cast<uint32_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("4294967296..9223372036854775807 (int64)")
                {
                    std::vector<uint64_t> v = {4294967296LU, 9223372036854775807LU};
                    for (uint64_t i : v)
                    {
                        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> expected;
                        expected.push_back('L');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 010) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 020) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 030) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 040) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 050) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 060) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 070) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 9);

                        // check individual bytes
                        CHECK(result[0] == 'L');
                        uint64_t restored = (static_cast<uint64_t>(result[8]) << 070) +
                                            (static_cast<uint64_t>(result[7]) << 060) +
                                            (static_cast<uint64_t>(result[6]) << 050) +
                                            (static_cast<uint64_t>(result[5]) << 040) +
                                            (static_cast<uint64_t>(result[4]) << 030) +
                                            (static_cast<uint64_t>(result[3]) << 020) +
                                            (static_cast<uint64_t>(result[2]) << 010) +
                                            static_cast<uint64_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("9223372036854775808..18446744073709551615 (uint64)")
                {
                    std::vector<uint64_t> v = {9223372036854775808ull, 18446744073709551615ull};
                    for (uint64_t i : v)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('M');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 010) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 020) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 030) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 040) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 050) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 060) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 070) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 9);

                        // check individual bytes
                        CHECK(result[0] == 'M');
                        uint64_t restored = (static_cast<uint64_t>(result[8]) << 070) +
                                            (static_cast<uint64_t>(result[7]) << 060) +
                                            (static_cast<uint64_t>(result[6]) << 050) +
                                            (static_cast<uint64_t>(result[5]) << 040) +
                                            (static_cast<uint64_t>(result[4]) << 030) +
                                            (static_cast<uint64_t>(result[3]) << 020) +
                                            (static_cast<uint64_t>(result[2]) << 010) +
                                            static_cast<uint64_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }
            }

            SECTION("unsigned")
            {
                SECTION("0..127 (int8)")
                {
                    for (size_t i = 0; i <= 127; ++i)
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('i');
                        expected.push_back(static_cast<uint8_t>(i));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 2);

                        // check individual bytes
                        CHECK(result[0] == 'i');
                        auto restored = static_cast<uint8_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("128..255 (uint8)")
                {
                    for (size_t i = 128; i <= 255; ++i)
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('U');
                        expected.push_back(static_cast<uint8_t>(i));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 2);

                        // check individual bytes
                        CHECK(result[0] == 'U');
                        auto restored = static_cast<uint8_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("256..32767 (int16)")
                {
                    for (size_t i = 256; i <= 32767; ++i)
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('I');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 3);

                        // check individual bytes
                        CHECK(result[0] == 'I');
                        auto restored = static_cast<uint16_t>(static_cast<uint8_t>(result[2]) * 256 + static_cast<uint8_t>(result[1]));
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("32768..65535 (uint16)")
                {
                    for (uint32_t i :
                            {
                                32768u, 55555u, 65535u
                            })
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('u');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 3);

                        // check individual bytes
                        CHECK(result[0] == 'u');
                        auto restored = static_cast<uint16_t>(static_cast<uint8_t>(result[2]) * 256 + static_cast<uint8_t>(result[1]));
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }
                SECTION("65536..2147483647 (int32)")
                {
                    for (uint32_t i :
                            {
                                65536u, 77777u, 2147483647u
                            })
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('l');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 5);

                        // check individual bytes
                        CHECK(result[0] == 'l');
                        uint32_t restored = (static_cast<uint32_t>(result[4]) << 030) +
                                            (static_cast<uint32_t>(result[3]) << 020) +
                                            (static_cast<uint32_t>(result[2]) << 010) +
                                            static_cast<uint32_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("2147483648..4294967295 (uint32)")
                {
                    for (uint32_t i :
                            {
                                2147483648u, 3333333333u, 4294967295u
                            })
                    {
                        CAPTURE(i)

                        // create JSON value with unsigned integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('m');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 8) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 16) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 24) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 5);

                        // check individual bytes
                        CHECK(result[0] == 'm');
                        uint32_t restored = (static_cast<uint32_t>(result[4]) << 030) +
                                            (static_cast<uint32_t>(result[3]) << 020) +
                                            (static_cast<uint32_t>(result[2]) << 010) +
                                            static_cast<uint32_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("4294967296..9223372036854775807 (int64)")
                {
                    std::vector<uint64_t> v = {4294967296ul, 9223372036854775807ul};
                    for (uint64_t i : v)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('L');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 010) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 020) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 030) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 040) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 050) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 060) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 070) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 9);

                        // check individual bytes
                        CHECK(result[0] == 'L');
                        uint64_t restored = (static_cast<uint64_t>(result[8]) << 070) +
                                            (static_cast<uint64_t>(result[7]) << 060) +
                                            (static_cast<uint64_t>(result[6]) << 050) +
                                            (static_cast<uint64_t>(result[5]) << 040) +
                                            (static_cast<uint64_t>(result[4]) << 030) +
                                            (static_cast<uint64_t>(result[3]) << 020) +
                                            (static_cast<uint64_t>(result[2]) << 010) +
                                            static_cast<uint64_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }

                SECTION("9223372036854775808..18446744073709551615 (uint64)")
                {
                    std::vector<uint64_t> v = {9223372036854775808ull, 18446744073709551615ull};
                    for (uint64_t i : v)
                    {
                        CAPTURE(i)

                        // create JSON value with integer number
                        json j = i;

                        // check type
                        CHECK(j.is_number_unsigned());

                        // create expected byte vector
                        std::vector<uint8_t> expected;
                        expected.push_back('M');
                        expected.push_back(static_cast<uint8_t>(i & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 010) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 020) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 030) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 040) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 050) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 060) & 0xff));
                        expected.push_back(static_cast<uint8_t>((i >> 070) & 0xff));

                        // compare result + size
                        const auto result = json::to_bjdata(j);
                        CHECK(result == expected);
                        CHECK(result.size() == 9);

                        // check individual bytes
                        CHECK(result[0] == 'M');
                        uint64_t restored = (static_cast<uint64_t>(result[8]) << 070) +
                                            (static_cast<uint64_t>(result[7]) << 060) +
                                            (static_cast<uint64_t>(result[6]) << 050) +
                                            (static_cast<uint64_t>(result[5]) << 040) +
                                            (static_cast<uint64_t>(result[4]) << 030) +
                                            (static_cast<uint64_t>(result[3]) << 020) +
                                            (static_cast<uint64_t>(result[2]) << 010) +
                                            static_cast<uint64_t>(result[1]);
                        CHECK(restored == i);

                        // roundtrip
                        CHECK(json::from_bjdata(result) == j);
                        CHECK(json::from_bjdata(result, true, false) == j);
                    }
                }
            }
            SECTION("float64")
            {
                SECTION("3.1415925")
                {
                    double v = 3.1415925;
                    json j = v;
                    std::vector<uint8_t> expected =
                    {
                        'D', 0xfc, 0xde, 0xa6, 0x3f, 0xfb, 0x21, 0x09, 0x40
                    };
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result) == v);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("half-precision float")
            {
                SECTION("simple half floats")
                {
                    CHECK(json::parse("0.0") == json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x00})));
                    CHECK(json::parse("-0.0") == json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x80})));
                    CHECK(json::parse("1.0") == json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x3c})));
                    CHECK(json::parse("1.5") == json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x3e})));
                    CHECK(json::parse("65504.0") == json::from_bjdata(std::vector<uint8_t>({'h', 0xff, 0x7b})));
                }

                SECTION("errors")
                {
                    SECTION("no byte follows")
                    {
                        json _;
                        std::vector<uint8_t> vec0 = {'h'};
                        CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec0), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
                        CHECK(json::from_bjdata(vec0, true, false).is_discarded());
                    }

                    SECTION("only one byte follows")
                    {
                        json _;
                        std::vector<uint8_t> vec1 = {'h', 0x00};
                        CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec1), "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
                        CHECK(json::from_bjdata(vec1, true, false).is_discarded());
                    }
                }
            }

            SECTION("half-precision float (edge cases)")
            {
                SECTION("exp = 0b00000")
                {
                    SECTION("0 (0 00000 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x00}));
                        json::number_float_t d{j};
                        CHECK(d == 0.0);
                    }

                    SECTION("-0 (1 00000 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x80}));
                        json::number_float_t d{j};
                        CHECK(d == -0.0);
                    }

                    SECTION("2**-24 (0 00000 0000000001)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x01, 0x00}));
                        json::number_float_t d{j};
                        CHECK(d == std::pow(2.0, -24.0));
                    }
                }

                SECTION("exp = 0b11111")
                {
                    SECTION("infinity (0 11111 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x7c}));
                        json::number_float_t d{j};
                        CHECK(d == std::numeric_limits<json::number_float_t>::infinity());
                        CHECK(j.dump() == "null");
                    }

                    SECTION("-infinity (1 11111 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0xfc}));
                        json::number_float_t d{j};
                        CHECK(d == -std::numeric_limits<json::number_float_t>::infinity());
                        CHECK(j.dump() == "null");
                    }
                }

                SECTION("other values from https://en.wikipedia.org/wiki/Half-precision_floating-point_format")
                {
                    SECTION("1 (0 01111 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x3c}));
                        json::number_float_t d{j};
                        CHECK(d == 1);
                    }

                    SECTION("-2 (1 10000 0000000000)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0xc0}));
                        json::number_float_t d{j};
                        CHECK(d == -2);
                    }

                    SECTION("65504 (0 11110 1111111111)")
                    {
                        json j = json::from_bjdata(std::vector<uint8_t>({'h', 0xff, 0x7b}));
                        json::number_float_t d{j};
                        CHECK(d == 65504);
                    }
                }

                SECTION("infinity")
                {
                    json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x7c}));
                    json::number_float_t d{j};
                    CHECK_FALSE(std::isfinite(d));
                    CHECK(j.dump() == "null");
                }

                SECTION("NaN")
                {
                    json j = json::from_bjdata(std::vector<uint8_t>({'h', 0x00, 0x7e }));
                    json::number_float_t d{j};
                    CHECK(std::isnan(d));
                    CHECK(j.dump() == "null");
                }
            }

            SECTION("high-precision number")
            {
                SECTION("unsigned integer number")
                {
                    std::vector<uint8_t> vec = {'H', 'i', 0x14, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0'};
                    const auto j = json::from_bjdata(vec);
                    CHECK(j.is_number_unsigned());
                    CHECK(j.dump() == "12345678901234567890");
                }

                SECTION("signed integer number")
                {
                    std::vector<uint8_t> vec = {'H', 'i', 0x13, '-', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '1', '2', '3', '4', '5', '6', '7', '8'};
                    const auto j = json::from_bjdata(vec);
                    CHECK(j.is_number_integer());
                    CHECK(j.dump() == "-123456789012345678");
                }

                SECTION("floating-point number")
                {
                    std::vector<uint8_t> vec = {'H', 'i', 0x16, '3', '.', '1', '4', '1', '5', '9',  '2', '6', '5', '3', '5', '8', '9',  '7', '9', '3', '2', '3', '8', '4',  '6'};
                    const auto j = json::from_bjdata(vec);
                    CHECK(j.is_number_float());
                    CHECK(j.dump() == "3.141592653589793");
                }

                SECTION("errors")
                {
                    // error while parsing length
                    std::vector<uint8_t> vec0 = {'H', 'i'};
                    CHECK(json::from_bjdata(vec0, true, false).is_discarded());
                    // error while parsing string
                    std::vector<uint8_t> vec1 = {'H', 'i', '1'};
                    CHECK(json::from_bjdata(vec1, true, false).is_discarded());

                    json _;
                    std::vector<uint8_t> vec2 = {'H', 'i', 2, '1', 'A', '3'};
                    CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec2), "[json.exception.parse_error.115] parse error at byte 5: syntax error while parsing BJData high-precision number: invalid number text: 1A", json::parse_error);
                    std::vector<uint8_t> vec3 = {'H', 'i', 2, '1', '.'};
                    CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec3), "[json.exception.parse_error.115] parse error at byte 5: syntax error while parsing BJData high-precision number: invalid number text: 1.", json::parse_error);
                    std::vector<uint8_t> vec4 = {'H', 2, '1', '0'};
                    CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec4), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0x02", json::parse_error);
                }
            }
        }

        SECTION("string")
        {
            SECTION("N = 0..127")
            {
                for (size_t N = 0; N <= 127; ++N)
                {
                    CAPTURE(N)

                    // create JSON value with string containing of N * 'x'
                    const auto s = std::string(N, 'x');
                    json j = s;

                    // create expected byte vector
                    std::vector<uint8_t> expected;
                    expected.push_back('S');
                    expected.push_back('i');
                    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_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 3);
                    // check that no null byte is appended
                    if (N > 0)
                    {
                        CHECK(result.back() != '\x00');
                    }

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("N = 128..255")
            {
                for (size_t N = 128; N <= 255; ++N)
                {
                    CAPTURE(N)

                    // create JSON value with string containing of N * 'x'
                    const auto s = std::string(N, 'x');
                    json j = s;

                    // create expected byte vector
                    std::vector<uint8_t> expected;
                    expected.push_back('S');
                    expected.push_back('U');
                    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_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 3);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("N = 256..32767")
            {
                for (size_t N :
                        {
                            256u, 999u, 1025u, 3333u, 2048u, 32767u
                        })
                {
                    CAPTURE(N)

                    // create JSON value with string containing of N * 'x'
                    const auto s = std::string(N, 'x');
                    json 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 >> 8) & 0xff));
                    expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff));
                    expected.insert(expected.begin(), 'I');
                    expected.insert(expected.begin(), 'S');

                    // compare result + size
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 4);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("N = 32768..65535")
            {
                for (size_t N :
                        {
                            32768u, 55555u, 65535u
                        })
                {
                    CAPTURE(N)

                    // create JSON value with string containing of N * 'x'
                    const auto s = std::string(N, 'x');
                    json 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 >> 8) & 0xff));
                    expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff));
                    expected.insert(expected.begin(), 'u');
                    expected.insert(expected.begin(), 'S');

                    // compare result + size
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 4);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("N = 65536..2147483647")
            {
                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 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 >> 24) & 0xff));
                    expected.insert(expected.begin(), static_cast<uint8_t>((N >> 16) & 0xff));
                    expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff));
                    expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff));
                    expected.insert(expected.begin(), 'l');
                    expected.insert(expected.begin(), 'S');

                    // compare result + size
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 6);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }
        }


        SECTION("binary")
        {
            SECTION("N = 0..127")
            {
                for (std::size_t N = 0; N <= 127; ++N)
                {
                    CAPTURE(N)

                    // create JSON value with byte array containing of N * 'x'
                    const auto s = std::vector<std::uint8_t>(N, 'x');
                    json j = json::binary(s);

                    // create expected byte vector
                    std::vector<std::uint8_t> expected;
                    expected.push_back(static_cast<std::uint8_t>('['));
                    if (N != 0)
                    {
                        expected.push_back(static_cast<std::uint8_t>('$'));
                        expected.push_back(static_cast<std::uint8_t>('U'));
                    }
                    expected.push_back(static_cast<std::uint8_t>('#'));
                    expected.push_back(static_cast<std::uint8_t>('i'));
                    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_bjdata(j, true, true);
                    CHECK(result == expected);
                    if (N == 0)
                    {
                        CHECK(result.size() == N + 4);
                    }
                    else
                    {
                        CHECK(result.size() == N + 6);
                    }

                    // check that no null byte is appended
                    if (N > 0)
                    {
                        CHECK(result.back() != '\x00');
                    }

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }

            SECTION("N = 128..255")
            {
                for (std::size_t N = 128; N <= 255; ++N)
                {
                    CAPTURE(N)

                    // create JSON value with byte array containing of N * 'x'
                    const auto s = std::vector<std::uint8_t>(N, 'x');
                    json j = json::binary(s);

                    // create expected byte vector
                    std::vector<uint8_t> expected;
                    expected.push_back(static_cast<std::uint8_t>('['));
                    expected.push_back(static_cast<std::uint8_t>('$'));
                    expected.push_back(static_cast<std::uint8_t>('U'));
                    expected.push_back(static_cast<std::uint8_t>('#'));
                    expected.push_back(static_cast<std::uint8_t>('U'));
                    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_bjdata(j, true, true);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 6);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }

            SECTION("N = 256..32767")
            {
                for (std::size_t N :
                        {
                            256u, 999u, 1025u, 3333u, 2048u, 32767u
                        })
                {
                    CAPTURE(N)

                    // create JSON value with byte array containing of N * 'x'
                    const auto s = std::vector<std::uint8_t>(N, 'x');
                    json j = json::binary(s);

                    // create expected byte vector
                    std::vector<std::uint8_t> expected(N + 7, 'x');
                    expected[0] = '[';
                    expected[1] = '$';
                    expected[2] = 'U';
                    expected[3] = '#';
                    expected[4] = 'I';
                    expected[5] = static_cast<std::uint8_t>(N & 0xFF);
                    expected[6] = static_cast<std::uint8_t>((N >> 8) & 0xFF);

                    // compare result + size
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 7);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }

            SECTION("N = 32768..65535")
            {
                for (std::size_t N :
                        {
                            32768u, 55555u, 65535u
                        })
                {
                    CAPTURE(N)

                    // create JSON value with byte array containing of N * 'x'
                    const auto s = std::vector<std::uint8_t>(N, 'x');
                    json j = json::binary(s);

                    // create expected byte vector
                    std::vector<std::uint8_t> expected(N + 7, 'x');
                    expected[0] = '[';
                    expected[1] = '$';
                    expected[2] = 'U';
                    expected[3] = '#';
                    expected[4] = 'u';
                    expected[5] = static_cast<std::uint8_t>(N & 0xFF);
                    expected[6] = static_cast<std::uint8_t>((N >> 8) & 0xFF);

                    // compare result + size
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 7);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }

            SECTION("N = 65536..2147483647")
            {
                for (std::size_t N :
                        {
                            65536u, 77777u, 1048576u
                        })
                {
                    CAPTURE(N)

                    // create JSON value with byte array containing of N * 'x'
                    const auto s = std::vector<std::uint8_t>(N, 'x');
                    json j = json::binary(s);

                    // create expected byte vector
                    std::vector<std::uint8_t> expected(N + 9, 'x');
                    expected[0] = '[';
                    expected[1] = '$';
                    expected[2] = 'U';
                    expected[3] = '#';
                    expected[4] = 'l';
                    expected[5] = static_cast<std::uint8_t>(N & 0xFF);
                    expected[6] = static_cast<std::uint8_t>((N >> 8) & 0xFF);
                    expected[7] = static_cast<std::uint8_t>((N >> 16) & 0xFF);
                    expected[8] = static_cast<std::uint8_t>((N >> 24) & 0xFF);

                    // compare result + size
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 9);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }

            SECTION("Other Serializations")
            {
                const std::size_t N = 10;
                const auto s = std::vector<std::uint8_t>(N, 'x');
                json j = json::binary(s);

                SECTION("No Count No Type")
                {
                    std::vector<uint8_t> expected;
                    expected.push_back(static_cast<std::uint8_t>('['));
                    for (std::size_t i = 0; i < N; ++i)
                    {
                        expected.push_back(static_cast<std::uint8_t>('U'));
                        expected.push_back(static_cast<std::uint8_t>(0x78));
                    }
                    expected.push_back(static_cast<std::uint8_t>(']'));

                    // compare result + size
                    const auto result = json::to_bjdata(j, false, false);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 12);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }

                SECTION("Yes Count No Type")
                {
                    std::vector<std::uint8_t> expected;
                    expected.push_back(static_cast<std::uint8_t>('['));
                    expected.push_back(static_cast<std::uint8_t>('#'));
                    expected.push_back(static_cast<std::uint8_t>('i'));
                    expected.push_back(static_cast<std::uint8_t>(N));

                    for (size_t i = 0; i < N; ++i)
                    {
                        expected.push_back(static_cast<std::uint8_t>('U'));
                        expected.push_back(static_cast<std::uint8_t>(0x78));
                    }

                    // compare result + size
                    const auto result = json::to_bjdata(j, true, false);
                    CHECK(result == expected);
                    CHECK(result.size() == N + 14);
                    // check that no null byte is appended
                    CHECK(result.back() != '\x00');

                    // roundtrip only works to an array of numbers
                    json j_out = s;
                    CHECK(json::from_bjdata(result) == j_out);
                    CHECK(json::from_bjdata(result, true, false) == j_out);
                }
            }
        }
        SECTION("array")
        {
            SECTION("empty")
            {
                SECTION("size=false type=false")
                {
                    json j = json::array();
                    std::vector<uint8_t> expected = {'[', ']'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = json::array();
                    std::vector<uint8_t> expected = {'[', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true")
                {
                    json j = json::array();
                    std::vector<uint8_t> expected = {'[', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("[null]")
            {
                SECTION("size=false type=false")
                {
                    json j = {nullptr};
                    std::vector<uint8_t> expected = {'[', 'Z', ']'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = {nullptr};
                    std::vector<uint8_t> expected = {'[', '#', 'i', 1, 'Z'};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true")
                {
                    json j = {nullptr};
                    std::vector<uint8_t> expected = {'[', '#', 'i', 1, 'Z'};
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("[1,2,3,4,5]")
            {
                SECTION("size=false type=false")
                {
                    json j = json::parse("[1,2,3,4,5]");
                    std::vector<uint8_t> expected = {'[', 'i', 1, 'i', 2, 'i', 3, 'i', 4, 'i', 5, ']'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = json::parse("[1,2,3,4,5]");
                    std::vector<uint8_t> expected = {'[', '#', 'i', 5, 'i', 1, 'i', 2, 'i', 3, 'i', 4, 'i', 5};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true")
                {
                    json j = json::parse("[1,2,3,4,5]");
                    std::vector<uint8_t> expected = {'[', '$', 'i', '#', 'i', 5, 1, 2, 3, 4, 5};
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("[[[[]]]]")
            {
                SECTION("size=false type=false")
                {
                    json j = json::parse("[[[[]]]]");
                    std::vector<uint8_t> expected = {'[', '[', '[', '[', ']', ']', ']', ']'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = json::parse("[[[[]]]]");
                    std::vector<uint8_t> expected = {'[', '#', 'i', 1, '[', '#', 'i', 1, '[', '#', 'i', 1, '[', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true")
                {
                    json j = json::parse("[[[[]]]]");
                    std::vector<uint8_t> expected = {'[', '#', 'i', 1, '[', '#', 'i', 1, '[', '#', 'i', 1, '[', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("array with int16_t elements")
            {
                SECTION("size=false type=false")
                {
                    json j(257, nullptr);
                    std::vector<uint8_t> expected(j.size() + 2, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[258] = ']'; // closing array
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j(257, nullptr);
                    std::vector<uint8_t> expected(j.size() + 5, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[1] = '#'; // array size
                    expected[2] = 'I'; // int16
                    expected[3] = 0x01; // 0x0101, first byte
                    expected[4] = 0x01; // 0x0101, second byte
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("array with uint16_t elements")
            {
                SECTION("size=false type=false")
                {
                    json j(32768, nullptr);
                    std::vector<uint8_t> expected(j.size() + 2, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[32769] = ']'; // closing array
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j(32768, nullptr);
                    std::vector<uint8_t> expected(j.size() + 5, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[1] = '#'; // array size
                    expected[2] = 'u'; // int16
                    expected[3] = 0x00; // 0x0101, first byte
                    expected[4] = 0x80; // 0x0101, second byte
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("array with int32_t elements")
            {
                SECTION("size=false type=false")
                {
                    json j(65793, nullptr);
                    std::vector<uint8_t> expected(j.size() + 2, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[65794] = ']'; // closing array
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j(65793, nullptr);
                    std::vector<uint8_t> expected(j.size() + 7, 'Z'); // all null
                    expected[0] = '['; // opening array
                    expected[1] = '#'; // array size
                    expected[2] = 'l'; // int32
                    expected[3] = 0x01; // 0x00010101, fourth byte
                    expected[4] = 0x01; // 0x00010101, third byte
                    expected[5] = 0x01; // 0x00010101, second byte
                    expected[6] = 0x00; // 0x00010101, first byte
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }
        }

        SECTION("object")
        {
            SECTION("empty")
            {
                SECTION("size=false type=false")
                {
                    json j = json::object();
                    std::vector<uint8_t> expected = {'{', '}'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = json::object();
                    std::vector<uint8_t> expected = {'{', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true")
                {
                    json j = json::object();
                    std::vector<uint8_t> expected = {'{', '#', 'i', 0};
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("{\"\":null}")
            {
                SECTION("size=false type=false")
                {
                    json j = {{"", nullptr}};
                    std::vector<uint8_t> expected = {'{', 'i', 0, 'Z', '}'};
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = {{"", nullptr}};
                    std::vector<uint8_t> expected = {'{', '#', 'i', 1, 'i', 0, 'Z'};
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }

            SECTION("{\"a\": {\"b\": {\"c\": {}}}}")
            {
                SECTION("size=false type=false")
                {
                    json j = json::parse(R"({"a": {"b": {"c": {}}}})");
                    std::vector<uint8_t> expected =
                    {
                        '{', 'i', 1, 'a', '{', 'i', 1, 'b', '{', 'i', 1, 'c', '{', '}', '}', '}', '}'
                    };
                    const auto result = json::to_bjdata(j);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=false")
                {
                    json j = json::parse(R"({"a": {"b": {"c": {}}}})");
                    std::vector<uint8_t> expected =
                    {
                        '{', '#', 'i', 1, 'i', 1, 'a', '{', '#', 'i', 1, 'i', 1, 'b', '{', '#', 'i', 1, 'i', 1, 'c', '{', '#', 'i', 0
                    };
                    const auto result = json::to_bjdata(j, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }

                SECTION("size=true type=true ignore object type marker")
                {
                    json j = json::parse(R"({"a": {"b": {"c": {}}}})");
                    std::vector<uint8_t> expected =
                    {
                        '{', '#', 'i', 1, 'i', 1, 'a', '{', '#', 'i', 1, 'i', 1, 'b', '{', '#', 'i', 1, 'i', 1, 'c', '{', '#', 'i', 0
                    };
                    const auto result = json::to_bjdata(j, true, true);
                    CHECK(result == expected);

                    // roundtrip
                    CHECK(json::from_bjdata(result) == j);
                    CHECK(json::from_bjdata(result, true, false) == j);
                }
            }
        }
    }

    SECTION("errors")
    {
        SECTION("strict mode")
        {
            std::vector<uint8_t> vec = {'Z', 'Z'};
            SECTION("non-strict mode")
            {
                const auto result = json::from_bjdata(vec, false);
                CHECK(result == json());
            }

            SECTION("strict mode")
            {
                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vec),
                                     "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData value: expected end of input; last byte: 0x5A", json::parse_error&);
            }
        }
    }

    SECTION("SAX aborts")
    {
        SECTION("start_array()")
        {
            std::vector<uint8_t> v = {'[', 'T', 'F', ']'};
            SaxCountdown scp(0);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("start_object()")
        {
            std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
            SaxCountdown scp(0);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("key() in object")
        {
            std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
            SaxCountdown scp(1);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("start_array(len)")
        {
            std::vector<uint8_t> v = {'[', '#', 'i', '2', 'T', 'F'};
            SaxCountdown scp(0);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("start_object(len)")
        {
            std::vector<uint8_t> v = {'{', '#', 'i', '1', 3, 'f', 'o', 'o', 'F'};
            SaxCountdown scp(0);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("key() in object with length")
        {
            std::vector<uint8_t> v = {'{', 'i', 3, 'f', 'o', 'o', 'F', '}'};
            SaxCountdown scp(1);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("start_array() in ndarray _ArraySize_")
        {
            std::vector<uint8_t> v = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 2, 2, 1, 1, 2};
            SaxCountdown scp(2);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("number_integer() in ndarray _ArraySize_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 2, 1, 1, 2};
            SaxCountdown scp(3);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("key() in ndarray _ArrayType_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'U', '#', 'i', 2, 2, 2, 1, 2, 3, 4};
            SaxCountdown scp(6);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("string() in ndarray _ArrayType_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'U', '#', 'i', 2, 2, 2, 1, 2, 3, 4};
            SaxCountdown scp(7);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("key() in ndarray _ArrayData_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'U', '#', 'i', 2, 2, 2, 1, 2, 3, 4};
            SaxCountdown scp(8);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("string() in ndarray _ArrayData_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'U', '#', 'i', 2, 2, 2, 1, 2, 3, 4};
            SaxCountdown scp(9);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("string() in ndarray _ArrayType_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 3, 2, 6, 5, 4, 3, 2, 1};
            SaxCountdown scp(11);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }

        SECTION("start_array() in ndarray _ArrayData_")
        {
            std::vector<uint8_t> v = {'[', '$', 'U', '#', '[', 'i', 2, 'i', 3, ']', 6, 5, 4, 3, 2, 1};
            SaxCountdown scp(13);
            CHECK_FALSE(json::sax_parse(v, &scp, json::input_format_t::bjdata));
        }
    }

    SECTION("parsing values")
    {
        SECTION("strings")
        {
            // create a single-character string for all number types
            std::vector<uint8_t> s_i = {'S', 'i', 1, 'a'};
            std::vector<uint8_t> s_U = {'S', 'U', 1, 'a'};
            std::vector<uint8_t> s_I = {'S', 'I', 1, 0, 'a'};
            std::vector<uint8_t> s_u = {'S', 'u', 1, 0, 'a'};
            std::vector<uint8_t> s_l = {'S', 'l', 1, 0, 0, 0, 'a'};
            std::vector<uint8_t> s_m = {'S', 'm', 1, 0, 0, 0, 'a'};
            std::vector<uint8_t> s_L = {'S', 'L', 1, 0, 0, 0, 0, 0, 0, 0, 'a'};
            std::vector<uint8_t> s_M = {'S', 'M', 1, 0, 0, 0, 0, 0, 0, 0, 'a'};

            // check if string is parsed correctly to "a"
            CHECK(json::from_bjdata(s_i) == "a");
            CHECK(json::from_bjdata(s_U) == "a");
            CHECK(json::from_bjdata(s_I) == "a");
            CHECK(json::from_bjdata(s_u) == "a");
            CHECK(json::from_bjdata(s_l) == "a");
            CHECK(json::from_bjdata(s_m) == "a");
            CHECK(json::from_bjdata(s_L) == "a");
            CHECK(json::from_bjdata(s_M) == "a");

            // roundtrip: output should be optimized
            CHECK(json::to_bjdata(json::from_bjdata(s_i)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_U)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_I)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_u)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_l)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_m)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_L)) == s_i);
            CHECK(json::to_bjdata(json::from_bjdata(s_M)) == s_i);
        }

        SECTION("number")
        {
            SECTION("float")
            {
                // float32
                std::vector<uint8_t> v_d = {'d', 0xd0, 0x0f, 0x49, 0x40};
                CHECK(json::from_bjdata(v_d) == 3.14159f);

                // float64
                std::vector<uint8_t> v_D = {'D', 0x6e, 0x86, 0x1b, 0xf0, 0xf9, 0x21, 0x09, 0x40};
                CHECK(json::from_bjdata(v_D) == 3.14159);

                // float32 is serialized as float64 as the library does not support float32
                CHECK(json::to_bjdata(json::from_bjdata(v_d)) == json::to_bjdata(3.14159f));
            }
        }

        SECTION("array")
        {
            SECTION("optimized version (length only)")
            {
                // create vector with two elements of the same type
                std::vector<uint8_t> v_TU = {'[', '#', 'U', 2, 'T', 'T'};
                std::vector<uint8_t> v_T = {'[', '#', 'i', 2, 'T', 'T'};
                std::vector<uint8_t> v_F = {'[', '#', 'i', 2, 'F', 'F'};
                std::vector<uint8_t> v_Z = {'[', '#', 'i', 2, 'Z', 'Z'};
                std::vector<uint8_t> v_i = {'[', '#', 'i', 2, 'i', 0x7F, 'i', 0x7F};
                std::vector<uint8_t> v_U = {'[', '#', 'i', 2, 'U', 0xFF, 'U', 0xFF};
                std::vector<uint8_t> v_I = {'[', '#', 'i', 2, 'I', 0xFF, 0x7F, 'I', 0xFF, 0x7F};
                std::vector<uint8_t> v_u = {'[', '#', 'i', 2, 'u', 0x0F, 0xA7, 'u', 0x0F, 0xA7};
                std::vector<uint8_t> v_l = {'[', '#', 'i', 2, 'l', 0xFF, 0xFF, 0xFF, 0x7F, 'l', 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_m = {'[', '#', 'i', 2, 'm', 0xFF, 0xC9, 0x9A, 0xBB, 'm', 0xFF, 0xC9, 0x9A, 0xBB};
                std::vector<uint8_t> v_L = {'[', '#', 'i', 2, 'L', 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 'L', 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_M = {'[', '#', 'i', 2, 'M', 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 'M', 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> v_D = {'[', '#', 'i', 2, 'D', 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40, 'D', 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40};
                std::vector<uint8_t> v_S = {'[', '#', 'i', 2, 'S', 'i', 1, 'a', 'S', 'i', 1, 'a'};
                std::vector<uint8_t> v_C = {'[', '#', 'i', 2, 'C', 'a', 'C', 'a'};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_TU) == json({true, true}));
                CHECK(json::from_bjdata(v_T) == json({true, true}));
                CHECK(json::from_bjdata(v_F) == json({false, false}));
                CHECK(json::from_bjdata(v_Z) == json({nullptr, nullptr}));
                CHECK(json::from_bjdata(v_i) == json({127, 127}));
                CHECK(json::from_bjdata(v_U) == json({255, 255}));
                CHECK(json::from_bjdata(v_I) == json({32767, 32767}));
                CHECK(json::from_bjdata(v_u) == json({42767, 42767}));
                CHECK(json::from_bjdata(v_l) == json({2147483647, 2147483647}));
                CHECK(json::from_bjdata(v_m) == json({3147483647, 3147483647}));
                CHECK(json::from_bjdata(v_L) == json({9223372036854775807, 9223372036854775807}));
                CHECK(json::from_bjdata(v_M) == json({10223372036854775807ull, 10223372036854775807ull}));
                CHECK(json::from_bjdata(v_D) == json({3.1415926, 3.1415926}));
                CHECK(json::from_bjdata(v_S) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_C) == json({"a", "a"}));

                // roundtrip: output should be optimized
                CHECK(json::to_bjdata(json::from_bjdata(v_T), true) == v_T);
                CHECK(json::to_bjdata(json::from_bjdata(v_F), true) == v_F);
                CHECK(json::to_bjdata(json::from_bjdata(v_Z), true) == v_Z);
                CHECK(json::to_bjdata(json::from_bjdata(v_i), true) == v_i);
                CHECK(json::to_bjdata(json::from_bjdata(v_U), true) == v_U);
                CHECK(json::to_bjdata(json::from_bjdata(v_I), true) == v_I);
                CHECK(json::to_bjdata(json::from_bjdata(v_u), true) == v_u);
                CHECK(json::to_bjdata(json::from_bjdata(v_l), true) == v_l);
                CHECK(json::to_bjdata(json::from_bjdata(v_m), true) == v_m);
                CHECK(json::to_bjdata(json::from_bjdata(v_L), true) == v_L);
                CHECK(json::to_bjdata(json::from_bjdata(v_M), true) == v_M);
                CHECK(json::to_bjdata(json::from_bjdata(v_D), true) == v_D);
                CHECK(json::to_bjdata(json::from_bjdata(v_S), true) == v_S);
                CHECK(json::to_bjdata(json::from_bjdata(v_C), true) == v_S); // char is serialized to string
            }

            SECTION("optimized version (type and length)")
            {
                // create vector with two elements of the same type
                std::vector<uint8_t> v_i = {'[', '$', 'i', '#', 'i', 2, 0x7F, 0x7F};
                std::vector<uint8_t> v_U = {'[', '$', 'U', '#', 'i', 2, 0xFF, 0xFF};
                std::vector<uint8_t> v_I = {'[', '$', 'I', '#', 'i', 2, 0xFF, 0x7F, 0xFF, 0x7F};
                std::vector<uint8_t> v_u = {'[', '$', 'u', '#', 'i', 2, 0x0F, 0xA7, 0x0F, 0xA7};
                std::vector<uint8_t> v_l = {'[', '$', 'l', '#', 'i', 2, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_m = {'[', '$', 'm', '#', 'i', 2, 0xFF, 0xC9, 0x9A, 0xBB, 0xFF, 0xC9, 0x9A, 0xBB};
                std::vector<uint8_t> v_L = {'[', '$', 'L', '#', 'i', 2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_M = {'[', '$', 'M', '#', 'i', 2, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> v_D = {'[', '$', 'D', '#', 'i', 2, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40};
                std::vector<uint8_t> v_S = {'[', '#', 'i', 2, 'S', 'i', 1, 'a', 'S', 'i', 1, 'a'};
                std::vector<uint8_t> v_C = {'[', '$', 'C', '#', 'i', 2, 'a', 'a'};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_i) == json({127, 127}));
                CHECK(json::from_bjdata(v_U) == json({255, 255}));
                CHECK(json::from_bjdata(v_I) == json({32767, 32767}));
                CHECK(json::from_bjdata(v_u) == json({42767, 42767}));
                CHECK(json::from_bjdata(v_l) == json({2147483647, 2147483647}));
                CHECK(json::from_bjdata(v_m) == json({3147483647, 3147483647}));
                CHECK(json::from_bjdata(v_L) == json({9223372036854775807, 9223372036854775807}));
                CHECK(json::from_bjdata(v_M) == json({10223372036854775807ull, 10223372036854775807ull}));
                CHECK(json::from_bjdata(v_D) == json({3.1415926, 3.1415926}));
                CHECK(json::from_bjdata(v_S) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_C) == json({"a", "a"}));

                // roundtrip: output should be optimized
                std::vector<uint8_t> v_empty = {'[', '#', 'i', 0};
                CHECK(json::to_bjdata(json::from_bjdata(v_i), true, true) == v_i);
                CHECK(json::to_bjdata(json::from_bjdata(v_U), true, true) == v_U);
                CHECK(json::to_bjdata(json::from_bjdata(v_I), true, true) == v_I);
                CHECK(json::to_bjdata(json::from_bjdata(v_u), true, true) == v_u);
                CHECK(json::to_bjdata(json::from_bjdata(v_l), true, true) == v_l);
                CHECK(json::to_bjdata(json::from_bjdata(v_m), true, true) == v_m);
                CHECK(json::to_bjdata(json::from_bjdata(v_L), true, true) == v_L);
                CHECK(json::to_bjdata(json::from_bjdata(v_M), true, true) == v_M);
                CHECK(json::to_bjdata(json::from_bjdata(v_D), true, true) == v_D);
                CHECK(json::to_bjdata(json::from_bjdata(v_S), true, true) == v_S);
                CHECK(json::to_bjdata(json::from_bjdata(v_C), true, true) == v_S); // char is serialized to string
            }

            SECTION("optimized ndarray (type and vector-size as optimized 1D array)")
            {
                // create vector with two elements of the same type
                std::vector<uint8_t> v_0 = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 1, 0};
                std::vector<uint8_t> v_1 = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 1, 2, 0x7F, 0x7F};
                std::vector<uint8_t> v_i = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0x7F, 0x7F};
                std::vector<uint8_t> v_U = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0xFF};
                std::vector<uint8_t> v_I = {'[', '$', 'I', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0x7F, 0xFF, 0x7F};
                std::vector<uint8_t> v_u = {'[', '$', 'u', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0x0F, 0xA7, 0x0F, 0xA7};
                std::vector<uint8_t> v_l = {'[', '$', 'l', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_m = {'[', '$', 'm', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0xC9, 0x9A, 0xBB, 0xFF, 0xC9, 0x9A, 0xBB};
                std::vector<uint8_t> v_L = {'[', '$', 'L', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_M = {'[', '$', 'M', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> v_D = {'[', '$', 'D', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40};
                std::vector<uint8_t> v_S = {'[', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 'S', 'i', 1, 'a', 'S', 'i', 1, 'a'};
                std::vector<uint8_t> v_C = {'[', '$', 'C', '#', '[', '$', 'i', '#', 'i', 2, 1, 2, 'a', 'a'};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_0) == json::array());
                CHECK(json::from_bjdata(v_1) == json({127, 127}));
                CHECK(json::from_bjdata(v_i) == json({127, 127}));
                CHECK(json::from_bjdata(v_U) == json({255, 255}));
                CHECK(json::from_bjdata(v_I) == json({32767, 32767}));
                CHECK(json::from_bjdata(v_u) == json({42767, 42767}));
                CHECK(json::from_bjdata(v_l) == json({2147483647, 2147483647}));
                CHECK(json::from_bjdata(v_m) == json({3147483647, 3147483647}));
                CHECK(json::from_bjdata(v_L) == json({9223372036854775807, 9223372036854775807}));
                CHECK(json::from_bjdata(v_M) == json({10223372036854775807ull, 10223372036854775807ull}));
                CHECK(json::from_bjdata(v_D) == json({3.1415926, 3.1415926}));
                CHECK(json::from_bjdata(v_S) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_C) == json({"a", "a"}));
            }

            SECTION("optimized ndarray (type and vector-size ndarray with JData annotations)")
            {
                // create vector with 0, 1, 2 elements of the same type
                std::vector<uint8_t> v_e = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 2, 1, 0xFE, 0xFF};
                std::vector<uint8_t> v_U = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06};
                std::vector<uint8_t> v_i = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06};
                std::vector<uint8_t> v_u = {'[', '$', 'u', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00, 0x06, 0x00};
                std::vector<uint8_t> v_I = {'[', '$', 'I', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0x00, 0x06, 0x00};
                std::vector<uint8_t> v_m = {'[', '$', 'm', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00};
                std::vector<uint8_t> v_l = {'[', '$', 'l', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00};
                std::vector<uint8_t> v_M = {'[', '$', 'M', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
                std::vector<uint8_t> v_L = {'[', '$', 'L', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
                std::vector<uint8_t> v_d = {'[', '$', 'd', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x00, 0x00, 0x80, 0x3F, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x40, 0x00, 0x00, 0x80, 0x40, 0x00, 0x00, 0xA0, 0x40, 0x00, 0x00, 0xC0, 0x40};
                std::vector<uint8_t> v_D = {'[', '$', 'D', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x14, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x40};
                std::vector<uint8_t> v_C = {'[', '$', 'C', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 'a', 'b', 'c', 'd', 'e', 'f'};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_e) == json({{"_ArrayData_", {254, 255}}, {"_ArraySize_", {2, 1}}, {"_ArrayType_", "uint8"}}));
                CHECK(json::from_bjdata(v_U) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "uint8"}}));
                CHECK(json::from_bjdata(v_i) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "int8"}}));
                CHECK(json::from_bjdata(v_i) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "int8"}}));
                CHECK(json::from_bjdata(v_u) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "uint16"}}));
                CHECK(json::from_bjdata(v_I) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "int16"}}));
                CHECK(json::from_bjdata(v_m) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "uint32"}}));
                CHECK(json::from_bjdata(v_l) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "int32"}}));
                CHECK(json::from_bjdata(v_M) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "uint64"}}));
                CHECK(json::from_bjdata(v_L) == json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "int64"}}));
                CHECK(json::from_bjdata(v_d) == json({{"_ArrayData_", {1.f, 2.f, 3.f, 4.f, 5.f, 6.f}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "single"}}));
                CHECK(json::from_bjdata(v_D) == json({{"_ArrayData_", {1., 2., 3., 4., 5., 6.}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "double"}}));
                CHECK(json::from_bjdata(v_C) == json({{"_ArrayData_", {'a', 'b', 'c', 'd', 'e', 'f'}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "char"}}));

                // roundtrip: output should be optimized
                CHECK(json::to_bjdata(json::from_bjdata(v_e), true, true) == v_e);
                CHECK(json::to_bjdata(json::from_bjdata(v_U), true, true) == v_U);
                CHECK(json::to_bjdata(json::from_bjdata(v_i), true, true) == v_i);
                CHECK(json::to_bjdata(json::from_bjdata(v_u), true, true) == v_u);
                CHECK(json::to_bjdata(json::from_bjdata(v_I), true, true) == v_I);
                CHECK(json::to_bjdata(json::from_bjdata(v_m), true, true) == v_m);
                CHECK(json::to_bjdata(json::from_bjdata(v_l), true, true) == v_l);
                CHECK(json::to_bjdata(json::from_bjdata(v_M), true, true) == v_M);
                CHECK(json::to_bjdata(json::from_bjdata(v_L), true, true) == v_L);
                CHECK(json::to_bjdata(json::from_bjdata(v_d), true, true) == v_d);
                CHECK(json::to_bjdata(json::from_bjdata(v_D), true, true) == v_D);
                CHECK(json::to_bjdata(json::from_bjdata(v_C), true, true) == v_C);
            }

            SECTION("optimized ndarray (type and vector-size as 1D array)")
            {
                // create vector with two elements of the same type
                std::vector<uint8_t> v_0 = {'[', '$', 'i', '#', '[', ']'};
                std::vector<uint8_t> v_E = {'[', '$', 'i', '#', '[', 'i', 2, 'i', 0, ']'};
                std::vector<uint8_t> v_i = {'[', '$', 'i', '#', '[', 'i', 1, 'i', 2, ']', 0x7F, 0x7F};
                std::vector<uint8_t> v_U = {'[', '$', 'U', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0xFF};
                std::vector<uint8_t> v_I = {'[', '$', 'I', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0x7F, 0xFF, 0x7F};
                std::vector<uint8_t> v_u = {'[', '$', 'u', '#', '[', 'i', 1, 'i', 2, ']', 0x0F, 0xA7, 0x0F, 0xA7};
                std::vector<uint8_t> v_l = {'[', '$', 'l', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_m = {'[', '$', 'm', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0xC9, 0x9A, 0xBB, 0xFF, 0xC9, 0x9A, 0xBB};
                std::vector<uint8_t> v_L = {'[', '$', 'L', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_M = {'[', '$', 'M', '#', '[', 'i', 1, 'i', 2, ']', 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> v_D = {'[', '$', 'D', '#', '[', 'i', 1, 'i', 2, ']', 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40};
                std::vector<uint8_t> v_S = {'[', '#', '[', 'i', 1, 'i', 2, ']', 'S', 'i', 1, 'a', 'S', 'i', 1, 'a'};
                std::vector<uint8_t> v_C = {'[', '$', 'C', '#', '[', 'i', 1, 'i', 2, ']', 'a', 'a'};
                std::vector<uint8_t> v_R = {'[', '#', '[', 'i', 2, ']', 'i', 6, 'U', 7};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_0) == json::array());
                CHECK(json::from_bjdata(v_E) == json::array());
                CHECK(json::from_bjdata(v_i) == json({127, 127}));
                CHECK(json::from_bjdata(v_U) == json({255, 255}));
                CHECK(json::from_bjdata(v_I) == json({32767, 32767}));
                CHECK(json::from_bjdata(v_u) == json({42767, 42767}));
                CHECK(json::from_bjdata(v_l) == json({2147483647, 2147483647}));
                CHECK(json::from_bjdata(v_m) == json({3147483647, 3147483647}));
                CHECK(json::from_bjdata(v_L) == json({9223372036854775807, 9223372036854775807}));
                CHECK(json::from_bjdata(v_M) == json({10223372036854775807ull, 10223372036854775807ull}));
                CHECK(json::from_bjdata(v_D) == json({3.1415926, 3.1415926}));
                CHECK(json::from_bjdata(v_S) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_C) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_R) == json({6, 7}));
            }

            SECTION("optimized ndarray (type and vector-size as size-optimized array)")
            {
                // create vector with two elements of the same type
                std::vector<uint8_t> v_i = {'[', '$', 'i', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0x7F, 0x7F};
                std::vector<uint8_t> v_U = {'[', '$', 'U', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0xFF};
                std::vector<uint8_t> v_I = {'[', '$', 'I', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0x7F, 0xFF, 0x7F};
                std::vector<uint8_t> v_u = {'[', '$', 'u', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0x0F, 0xA7, 0x0F, 0xA7};
                std::vector<uint8_t> v_l = {'[', '$', 'l', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_m = {'[', '$', 'm', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0xC9, 0x9A, 0xBB, 0xFF, 0xC9, 0x9A, 0xBB};
                std::vector<uint8_t> v_L = {'[', '$', 'L', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F};
                std::vector<uint8_t> v_M = {'[', '$', 'M', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> v_D = {'[', '$', 'D', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40, 0x4a, 0xd8, 0x12, 0x4d, 0xfb, 0x21, 0x09, 0x40};
                std::vector<uint8_t> v_S = {'[', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 'S', 'i', 1, 'a', 'S', 'i', 1, 'a'};
                std::vector<uint8_t> v_C = {'[', '$', 'C', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2, 'a', 'a'};

                // check if vector is parsed correctly
                CHECK(json::from_bjdata(v_i) == json({127, 127}));
                CHECK(json::from_bjdata(v_U) == json({255, 255}));
                CHECK(json::from_bjdata(v_I) == json({32767, 32767}));
                CHECK(json::from_bjdata(v_u) == json({42767, 42767}));
                CHECK(json::from_bjdata(v_l) == json({2147483647, 2147483647}));
                CHECK(json::from_bjdata(v_m) == json({3147483647, 3147483647}));
                CHECK(json::from_bjdata(v_L) == json({9223372036854775807, 9223372036854775807}));
                CHECK(json::from_bjdata(v_M) == json({10223372036854775807ull, 10223372036854775807ull}));
                CHECK(json::from_bjdata(v_D) == json({3.1415926, 3.1415926}));
                CHECK(json::from_bjdata(v_S) == json({"a", "a"}));
                CHECK(json::from_bjdata(v_C) == json({"a", "a"}));
            }

            SECTION("invalid ndarray annotations remains as object")
            {
                // check if invalid ND array annotations stay as object
                json j_type = json({{"_ArrayData_", {1, 2, 3, 4, 5, 6}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "invalidtype"}});
                json j_size = json({{"_ArrayData_", {1, 2, 3, 4, 5}}, {"_ArraySize_", {2, 3}}, {"_ArrayType_", "uint8"}});

                // roundtrip: output should stay as object
                CHECK(json::from_bjdata(json::to_bjdata(j_type), true, true) == j_type);
                CHECK(json::from_bjdata(json::to_bjdata(j_size), true, true) == j_size);
            }
        }
    }

    SECTION("parse errors")
    {
        SECTION("empty byte vector")
        {
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(std::vector<uint8_t>()),
                                 "[json.exception.parse_error.110] parse error at byte 1: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
        }

        SECTION("char")
        {
            SECTION("eof after C byte")
            {
                std::vector<uint8_t> v = {'C'};
                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData char: unexpected end of input", json::parse_error&);
            }

            SECTION("byte out of range")
            {
                std::vector<uint8_t> v = {'C', 130};
                json _;
                CHECK_THROWS_WITH(_ = json::from_bjdata(v), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing BJData char: byte after 'C' must be in range 0x00..0x7F; last byte: 0x82");
            }
        }

        SECTION("strings")
        {
            SECTION("eof after S byte")
            {
                std::vector<uint8_t> v = {'S'};
                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            }

            SECTION("invalid byte")
            {
                std::vector<uint8_t> v = {'S', '1', 'a'};
                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing BJData string: expected length type specification (U, i, u, I, m, l, M, L); last byte: 0x31", json::parse_error&);
            }

            SECTION("parse bjdata markers in ubjson")
            {
                // create a single-character string for all number types
                std::vector<uint8_t> s_u = {'S', 'u', 1, 0, 'a'};
                std::vector<uint8_t> s_m = {'S', 'm', 1, 0, 0, 0, 'a'};
                std::vector<uint8_t> s_M = {'S', 'M', 1, 0, 0, 0, 0, 0, 0, 0, 'a'};

                json _;
                // check if string is parsed correctly to "a"
                CHECK_THROWS_WITH_AS(_ = json::from_ubjson(s_u), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing UBJSON string: expected length type specification (U, i, I, l, L); last byte: 0x75", json::parse_error&);
                CHECK_THROWS_WITH_AS(_ = json::from_ubjson(s_m), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing UBJSON string: expected length type specification (U, i, I, l, L); last byte: 0x6D", json::parse_error&);
                CHECK_THROWS_WITH_AS(_ = json::from_ubjson(s_M), "[json.exception.parse_error.113] parse error at byte 2: syntax error while parsing UBJSON string: expected length type specification (U, i, I, l, L); last byte: 0x4D", json::parse_error&);
            }
        }

        SECTION("array")
        {
            SECTION("optimized array: no size following type")
            {
                std::vector<uint8_t> v = {'[', '$', 'i', 2};
                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.112] parse error at byte 4: syntax error while parsing BJData size: expected '#' after type information; last byte: 0x02", json::parse_error&);
            }

            SECTION("optimized array: negative size")
            {
                std::vector<uint8_t> v1 = {'[', '#', 'i', 0xF1};
                std::vector<uint8_t> v2 = {'[', '$', 'I', '#', 'i', 0xF2};
                std::vector<uint8_t> v3 = {'[', '$', 'I', '#', '[', 'i', 0xF4, 'i', 0x02, ']'};
                std::vector<uint8_t> v4 = {'[', '$', 0xF6, '#', 'i', 0xF7};
                std::vector<uint8_t> v5 = {'[', '$', 'I', '#', '[', 'i', 0xF5, 'i', 0xF1, ']'};
                std::vector<uint8_t> v6 = {'[', '#', '[', 'i', 0xF3, 'i', 0x02, ']'};

                std::vector<uint8_t> vI = {'[', '#', 'I', 0x00, 0xF1};
                std::vector<uint8_t> vl = {'[', '#', 'l', 0x00, 0x00, 0x00, 0xF2};
                std::vector<uint8_t> vL = {'[', '#', 'L', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF3};
                std::vector<uint8_t> vM = {'[', '$', 'M', '#', '[', 'I', 0x00, 0x20, 'M', 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0xFF, ']'};

                json _;
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v1), "[json.exception.parse_error.113] parse error at byte 4: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v1, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v2), "[json.exception.parse_error.113] parse error at byte 6: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v2, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v3), "[json.exception.parse_error.113] parse error at byte 7: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v3, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v4), "[json.exception.parse_error.113] parse error at byte 6: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v4, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v5), "[json.exception.parse_error.113] parse error at byte 7: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v5, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v6), "[json.exception.parse_error.113] parse error at byte 5: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(v6, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vI), "[json.exception.parse_error.113] parse error at byte 5: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(vI, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vl), "[json.exception.parse_error.113] parse error at byte 7: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(vl, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vL), "[json.exception.parse_error.113] parse error at byte 11: syntax error while parsing BJData size: count in an optimized container must be positive", json::parse_error&);
                CHECK(json::from_bjdata(vL, true, false).is_discarded());

#if SIZE_MAX == 0xffffffff
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.out_of_range.408] syntax error while parsing BJData size: integer value overflow", json::out_of_range&);
#else
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.out_of_range.408] syntax error while parsing BJData size: excessive ndarray size caused overflow", json::out_of_range&);
#endif
                CHECK(json::from_bjdata(vM, true, false).is_discarded());
            }

            SECTION("do not accept NTFZ markers in ndarray optimized type (with count)")
            {
                json _;
                std::vector<uint8_t> v_N = {'[', '$', 'N', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2};
                std::vector<uint8_t> v_T = {'[', '$', 'T', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2};
                std::vector<uint8_t> v_F = {'[', '$', 'F', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2};
                std::vector<uint8_t> v_Z = {'[', '$', 'Z', '#', '[', '#', 'i', 2, 'i', 1, 'i', 2};

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_N), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x4E is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_N, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_T), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x54 is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_T, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_F), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x46 is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_F, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_Z), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x5A is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_Z, true, false).is_discarded());
            }

            SECTION("do not accept NTFZ markers in ndarray optimized type (without count)")
            {
                json _;
                std::vector<uint8_t> v_N = {'[', '$', 'N', '#', '[', 'i', 1, 'i', 2, ']'};
                std::vector<uint8_t> v_T = {'[', '$', 'T', '#', '[', 'i', 1, 'i', 2, ']'};
                std::vector<uint8_t> v_F = {'[', '$', 'F', '#', '[', 'i', 1, 'i', 2, ']'};
                std::vector<uint8_t> v_Z = {'[', '$', 'Z', '#', '[', 'i', 1, 'i', 2, ']'};

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_N), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x4E is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_N, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_T), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x54 is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_T, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_F), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x46 is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_F, true, false).is_discarded());

                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v_Z), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x5A is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v_Z, true, false).is_discarded());
            }
        }

        SECTION("strings")
        {
            std::vector<uint8_t> vS = {'S'};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vS), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vS, true, false).is_discarded());

            std::vector<uint8_t> v = {'S', 'i', '2', 'a'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 5: syntax error while parsing BJData string: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v, true, false).is_discarded());

            std::vector<uint8_t> vC = {'C'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vC), "[json.exception.parse_error.110] parse error at byte 2: syntax error while parsing BJData char: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vC, true, false).is_discarded());
        }

        SECTION("sizes")
        {
            std::vector<uint8_t> vU = {'[', '#', 'U'};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vU), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vU, true, false).is_discarded());

            std::vector<uint8_t> vi = {'[', '#', 'i'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vi), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vi, true, false).is_discarded());

            std::vector<uint8_t> vI = {'[', '#', 'I'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vI), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vI, true, false).is_discarded());

            std::vector<uint8_t> vu = {'[', '#', 'u'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vu), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vu, true, false).is_discarded());

            std::vector<uint8_t> vl = {'[', '#', 'l'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vl), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vl, true, false).is_discarded());

            std::vector<uint8_t> vm = {'[', '#', 'm'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vm), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vm, true, false).is_discarded());

            std::vector<uint8_t> vL = {'[', '#', 'L'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vL), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vL, true, false).is_discarded());

            std::vector<uint8_t> vM = {'[', '#', 'M'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vM, true, false).is_discarded());

            std::vector<uint8_t> v0 = {'[', '#', 'T', ']'};
            CHECK_THROWS_WITH(_ = json::from_bjdata(v0), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0x54");
            CHECK(json::from_bjdata(v0, true, false).is_discarded());
        }

        SECTION("parse bjdata markers as array size in ubjson")
        {
            json _;
            std::vector<uint8_t> vu = {'[', '#', 'u'};
            CHECK_THROWS_WITH_AS(_ = json::from_ubjson(vu), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing UBJSON size: expected length type specification (U, i, I, l, L) after '#'; last byte: 0x75", json::parse_error&);
            CHECK(json::from_ubjson(vu, true, false).is_discarded());

            std::vector<uint8_t> vm = {'[', '#', 'm'};
            CHECK_THROWS_WITH_AS(_ = json::from_ubjson(vm), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing UBJSON size: expected length type specification (U, i, I, l, L) after '#'; last byte: 0x6D", json::parse_error&);
            CHECK(json::from_ubjson(vm, true, false).is_discarded());

            std::vector<uint8_t> vM = {'[', '#', 'M'};
            CHECK_THROWS_WITH_AS(_ = json::from_ubjson(vM), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing UBJSON size: expected length type specification (U, i, I, l, L) after '#'; last byte: 0x4D", json::parse_error&);
            CHECK(json::from_ubjson(vM, true, false).is_discarded());

            std::vector<uint8_t> v0 = {'[', '#', '['};
            CHECK_THROWS_WITH_AS(_ = json::from_ubjson(v0), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing UBJSON size: expected length type specification (U, i, I, l, L) after '#'; last byte: 0x5B", json::parse_error&);
            CHECK(json::from_ubjson(v0, true, false).is_discarded());
        }

        SECTION("types")
        {
            std::vector<uint8_t> v0 = {'[', '$'};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v0), "[json.exception.parse_error.110] parse error at byte 3: syntax error while parsing BJData type: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v0, true, false).is_discarded());

            std::vector<uint8_t> vi = {'[', '$', '#'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vi), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vi, true, false).is_discarded());

            std::vector<uint8_t> vU = {'[', '$', 'U'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vU), "[json.exception.parse_error.110] parse error at byte 4: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vU, true, false).is_discarded());

            std::vector<uint8_t> v1 = {'[', '$', '['};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v1), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x5B is not a permitted optimized array type", json::parse_error&);
            CHECK(json::from_bjdata(v1, true, false).is_discarded());
        }

        SECTION("arrays")
        {
            std::vector<uint8_t> vST = {'[', '$', 'i', '#', 'i', 2, 1};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vST), "[json.exception.parse_error.110] parse error at byte 8: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vST, true, false).is_discarded());

            std::vector<uint8_t> vS = {'[', '#', 'i', 2, 'i', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vS), "[json.exception.parse_error.110] parse error at byte 7: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vS, true, false).is_discarded());

            std::vector<uint8_t> v = {'[', 'i', 2, 'i', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 6: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v, true, false).is_discarded());
        }

        SECTION("ndarrays")
        {
            std::vector<uint8_t> vST = {'[', '$', 'i', '#', '[', '$', 'i', '#'};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vST), "[json.exception.parse_error.113] parse error at byte 9: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0xFF", json::parse_error&);
            CHECK(json::from_bjdata(vST, true, false).is_discarded());

            std::vector<uint8_t> v = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 2, 1, 2};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 13: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v, true, false).is_discarded());

            std::vector<uint8_t> vS0 = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'i', 2, 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vS0), "[json.exception.parse_error.110] parse error at byte 12: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vS0, true, false).is_discarded());

            std::vector<uint8_t> vS = {'[', '$', 'i', '#', '[', '#', 'i', 2, 1, 2, 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vS), "[json.exception.parse_error.113] parse error at byte 9: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0x01", json::parse_error&);
            CHECK(json::from_bjdata(vS, true, false).is_discarded());

            std::vector<uint8_t> vT = {'[', '$', 'i', '#', '[', 'i', 2, 'i'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vT), "[json.exception.parse_error.110] parse error at byte 9: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vT, true, false).is_discarded());

            std::vector<uint8_t> vT0 = {'[', '$', 'i', '#', '[', 'i'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vT0), "[json.exception.parse_error.110] parse error at byte 7: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vT0, true, false).is_discarded());

            std::vector<uint8_t> vu = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'u', 1, 0};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vu), "[json.exception.parse_error.110] parse error at byte 12: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vu, true, false).is_discarded());

            std::vector<uint8_t> vm = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'm', 1, 0, 0, 0};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vm), "[json.exception.parse_error.110] parse error at byte 14: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vm, true, false).is_discarded());

            std::vector<uint8_t> vM = {'[', '$', 'i', '#', '[', '$', 'i', '#', 'M', 1, 0, 0, 0, 0, 0, 0, 0};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vM), "[json.exception.parse_error.110] parse error at byte 18: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vM, true, false).is_discarded());

            std::vector<uint8_t> vU = {'[', '$', 'U', '#', '[', '$', 'i', '#', 'i', 2, 2, 3, 1, 2, 3, 4, 5};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vU), "[json.exception.parse_error.110] parse error at byte 18: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vU, true, false).is_discarded());

            std::vector<uint8_t> vT1 = {'[', '$', 'T', '#', '[', '$', 'i', '#', 'i', 2, 2, 3};
            CHECK(json::from_bjdata(vT1, true, false).is_discarded());

            std::vector<uint8_t> vh = {'[', '$', 'h', '#', '[', '$', 'i', '#', 'i', 2, 2, 3};
            CHECK(json::from_bjdata(vh, true, false).is_discarded());

            std::vector<uint8_t> vR = {'[', '$', 'i', '#', '[', 'i', 1, '[', ']', ']', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR), "[json.exception.parse_error.113] parse error at byte 8: syntax error while parsing BJData size: ndarray dimentional vector is not allowed", json::parse_error&);
            CHECK(json::from_bjdata(vR, true, false).is_discarded());

            std::vector<uint8_t> vRo = {'[', '$', 'i', '#', '[', 'i', 0, '{', '}', ']', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vRo), "[json.exception.parse_error.113] parse error at byte 8: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0x7B", json::parse_error&);
            CHECK(json::from_bjdata(vRo, true, false).is_discarded());

            std::vector<uint8_t> vR1 = {'[', '$', 'i', '#', '[', '[', 'i', 1, ']', ']', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR1), "[json.exception.parse_error.113] parse error at byte 6: syntax error while parsing BJData size: ndarray dimentional vector is not allowed", json::parse_error&);
            CHECK(json::from_bjdata(vR1, true, false).is_discarded());

            std::vector<uint8_t> vR2 = {'[', '$', 'i', '#', '[', '#', '[', 'i', 1, ']', ']', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR2), "[json.exception.parse_error.113] parse error at byte 11: syntax error while parsing BJData size: expected length type specification (U, i, u, I, m, l, M, L) after '#'; last byte: 0x5D", json::parse_error&);
            CHECK(json::from_bjdata(vR2, true, false).is_discarded());

            std::vector<uint8_t> vR3 = {'[', '#', '[', 'i', '2', 'i', 2, ']'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR3), "[json.exception.parse_error.112] parse error at byte 8: syntax error while parsing BJData size: ndarray requires both type and size", json::parse_error&);
            CHECK(json::from_bjdata(vR3, true, false).is_discarded());

            std::vector<uint8_t> vR4 = {'[', '$', 'i', '#', '[', '$', 'i', '#', '[', 'i', 1, ']', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR4), "[json.exception.parse_error.110] parse error at byte 14: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vR4, true, false).is_discarded());

            std::vector<uint8_t> vR5 = {'[', '$', 'i', '#', '[', '[', '[', ']', ']', ']'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR5), "[json.exception.parse_error.113] parse error at byte 6: syntax error while parsing BJData size: ndarray dimentional vector is not allowed", json::parse_error&);
            CHECK(json::from_bjdata(vR5, true, false).is_discarded());

            std::vector<uint8_t> vR6 = {'[', '$', 'i', '#', '[', '$', 'i', '#', '[', 'i', '2', 'i', 2, ']'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vR6), "[json.exception.parse_error.112] parse error at byte 14: syntax error while parsing BJData size: ndarray can not be recursive", json::parse_error&);
            CHECK(json::from_bjdata(vR6, true, false).is_discarded());

            std::vector<uint8_t> vH = {'[', 'H', '[', '#', '[', '$', 'i', '#', '[', 'i', '2', 'i', 2, ']'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vH), "[json.exception.parse_error.113] parse error at byte 3: syntax error while parsing BJData size: ndarray dimentional vector is not allowed", json::parse_error&);
            CHECK(json::from_bjdata(vH, true, false).is_discarded());
        }

        SECTION("objects")
        {
            std::vector<uint8_t> vST = {'{', '$', 'i', '#', 'i', 2, 'i', 1, 'a', 1};
            json _;
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vST), "[json.exception.parse_error.110] parse error at byte 11: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vST, true, false).is_discarded());

            std::vector<uint8_t> vT = {'{', '$', 'i', 'i', 1, 'a', 1};
            CHECK_THROWS_WITH(_ = json::from_bjdata(vT), "[json.exception.parse_error.112] parse error at byte 4: syntax error while parsing BJData size: expected '#' after type information; last byte: 0x69");
            CHECK(json::from_bjdata(vT, true, false).is_discarded());

            std::vector<uint8_t> vS = {'{', '#', 'i', 2, 'i', 1, 'a', 'i', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vS), "[json.exception.parse_error.110] parse error at byte 10: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vS, true, false).is_discarded());

            std::vector<uint8_t> v = {'{', 'i', 1, 'a', 'i', 1};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.110] parse error at byte 7: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v, true, false).is_discarded());

            std::vector<uint8_t> v2 = {'{', 'i', 1, 'a', 'i', 1, 'i'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v2), "[json.exception.parse_error.110] parse error at byte 8: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v2, true, false).is_discarded());

            std::vector<uint8_t> v3 = {'{', 'i', 1, 'a'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v3), "[json.exception.parse_error.110] parse error at byte 5: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(v3, true, false).is_discarded());

            std::vector<uint8_t> vST1 = {'{', '$', 'd', '#', 'i', 2, 'i', 1, 'a'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vST1), "[json.exception.parse_error.110] parse error at byte 10: syntax error while parsing BJData number: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vST1, true, false).is_discarded());

            std::vector<uint8_t> vST2 = {'{', '#', 'i', 2, 'i', 1, 'a'};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vST2), "[json.exception.parse_error.110] parse error at byte 8: syntax error while parsing BJData value: unexpected end of input", json::parse_error&);
            CHECK(json::from_bjdata(vST2, true, false).is_discarded());

            std::vector<uint8_t> vO = {'{', '#', '[', 'i', 2, 'i', 1, ']', 'i', 1, 'a', 'i', 1, 'i', 1, 'b', 'i', 2};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vO), "[json.exception.parse_error.112] parse error at byte 8: syntax error while parsing BJData size: ndarray requires both type and size", json::parse_error&);
            CHECK(json::from_bjdata(vO, true, false).is_discarded());

            std::vector<uint8_t> vO2 = {'{', '$', 'i', '#', '[', 'i', 2, 'i', 1, ']', 'i', 1, 'a', 1, 'i', 1, 'b', 2};
            CHECK_THROWS_WITH_AS(_ = json::from_bjdata(vO2), "[json.exception.parse_error.112] parse error at byte 10: syntax error while parsing BJData object: BJData object does not support ND-array size in optimized format", json::parse_error&);
            CHECK(json::from_bjdata(vO2, true, false).is_discarded());
        }
    }

    SECTION("writing optimized values")
    {
        SECTION("integer")
        {
            SECTION("array of i")
            {
                json j = {1, -1};
                std::vector<uint8_t> expected = {'[', '$', 'i', '#', 'i', 2, 1, 0xff};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of U")
            {
                json j = {200, 201};
                std::vector<uint8_t> expected = {'[', '$', 'U', '#', 'i', 2, 0xC8, 0xC9};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of I")
            {
                json j = {30000, -30000};
                std::vector<uint8_t> expected = {'[', '$', 'I', '#', 'i', 2, 0x30, 0x75, 0xd0, 0x8a};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of u")
            {
                json j = {50000, 50001};
                std::vector<uint8_t> expected = {'[', '$', 'u', '#', 'i', 2, 0x50, 0xC3, 0x51, 0xC3};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of l")
            {
                json j = {70000, -70000};
                std::vector<uint8_t> expected = {'[', '$', 'l', '#', 'i', 2, 0x70, 0x11, 0x01, 0x00, 0x90, 0xEE, 0xFE, 0xFF};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of m")
            {
                json j = {3147483647, 3147483648};
                std::vector<uint8_t> expected = {'[', '$', 'm', '#', 'i', 2, 0xFF, 0xC9, 0x9A, 0xBB, 0x00, 0xCA, 0x9A, 0xBB};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }

            SECTION("array of L")
            {
                json j = {5000000000, -5000000000};
                std::vector<uint8_t> expected = {'[', '$', 'L', '#', 'i', 2, 0x00, 0xF2, 0x05, 0x2A, 0x01, 0x00, 0x00, 0x00, 0x00, 0x0E, 0xFA, 0xD5, 0xFE, 0xFF, 0xFF, 0xFF};
                CHECK(json::to_bjdata(j, true, true) == expected);
            }
        }

        SECTION("unsigned integer")
        {
            SECTION("array of i")
            {
                json j = {1u, 2u};
                std::vector<uint8_t> expected = {'[', '$', 'i', '#', 'i', 2, 1, 2};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'i', 1, 'i', 2};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of U")
            {
                json j = {200u, 201u};
                std::vector<uint8_t> expected = {'[', '$', 'U', '#', 'i', 2, 0xC8, 0xC9};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'U', 0xC8, 'U', 0xC9};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of I")
            {
                json j = {30000u, 30001u};
                std::vector<uint8_t> expected = {'[', '$', 'I', '#', 'i', 2, 0x30, 0x75, 0x31, 0x75};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'I', 0x30, 0x75, 'I', 0x31, 0x75};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of u")
            {
                json j = {50000u, 50001u};
                std::vector<uint8_t> expected = {'[', '$', 'u', '#', 'i', 2, 0x50, 0xC3, 0x51, 0xC3};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'u', 0x50, 0xC3, 'u', 0x51, 0xC3};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of l")
            {
                json j = {70000u, 70001u};
                std::vector<uint8_t> expected = {'[', '$', 'l', '#', 'i', 2, 0x70, 0x11, 0x01, 0x00, 0x71, 0x11, 0x01, 0x00};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'l', 0x70, 0x11, 0x01, 0x00, 'l', 0x71, 0x11, 0x01, 0x00};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of m")
            {
                json j = {3147483647u, 3147483648u};
                std::vector<uint8_t> expected = {'[', '$', 'm', '#', 'i', 2, 0xFF, 0xC9, 0x9A, 0xBB, 0x00, 0xCA, 0x9A, 0xBB};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'm', 0xFF, 0xC9, 0x9A, 0xBB, 'm', 0x00, 0xCA, 0x9A, 0xBB};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of L")
            {
                json j = {5000000000u, 5000000001u};
                std::vector<uint8_t> expected = {'[', '$', 'L', '#', 'i', 2, 0x00, 0xF2, 0x05, 0x2A, 0x01, 0x00, 0x00, 0x00, 0x01, 0xF2, 0x05, 0x2A, 0x01, 0x00, 0x00, 0x00};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'L', 0x00, 0xF2, 0x05, 0x2A, 0x01, 0x00, 0x00, 0x00, 'L', 0x01, 0xF2, 0x05, 0x2A, 0x01, 0x00, 0x00, 0x00};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }

            SECTION("array of M")
            {
                json j = {10223372036854775807ull, 10223372036854775808ull};
                std::vector<uint8_t> expected = {'[', '$', 'M', '#', 'i', 2, 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 0x00, 0x00, 0x64, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                std::vector<uint8_t> expected_size = {'[', '#', 'i', 2, 'M', 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D, 'M', 0x00, 0x00, 0x64, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D};
                CHECK(json::to_bjdata(j, true, true) == expected);
                CHECK(json::to_bjdata(j, true) == expected_size);
            }
        }
    }
}

TEST_CASE("Universal Binary JSON Specification Examples 1")
{
    SECTION("Null Value")
    {
        json j = {{"passcode", nullptr}};
        std::vector<uint8_t> v = {'{', 'i', 8, 'p', 'a', 's', 's', 'c', 'o', 'd', 'e', 'Z', '}'};
        CHECK(json::to_bjdata(j) == v);
        CHECK(json::from_bjdata(v) == j);
    }

    SECTION("No-Op Value")
    {
        json j = {"foo", "bar", "baz"};
        std::vector<uint8_t> v = {'[', 'S', 'i', 3, 'f', 'o', 'o',
                                  'S', 'i', 3, 'b', 'a', 'r',
                                  'S', 'i', 3, 'b', 'a', 'z', ']'
                                 };
        std::vector<uint8_t> v2 = {'[', 'S', 'i', 3, 'f', 'o', 'o', 'N',
                                   'S', 'i', 3, 'b', 'a', 'r', 'N', 'N', 'N',
                                   'S', 'i', 3, 'b', 'a', 'z', 'N', 'N', ']'
                                  };
        CHECK(json::to_bjdata(j) == v);
        CHECK(json::from_bjdata(v) == j);
        CHECK(json::from_bjdata(v2) == j);
    }

    SECTION("Boolean Types")
    {
        json j = {{"authorized", true}, {"verified", false}};
        std::vector<uint8_t> v = {'{', 'i', 10, 'a', 'u', 't', 'h', 'o', 'r', 'i', 'z', 'e', 'd', 'T',
                                  'i', 8, 'v', 'e', 'r', 'i', 'f', 'i', 'e', 'd', 'F', '}'
                                 };
        CHECK(json::to_bjdata(j) == v);
        CHECK(json::from_bjdata(v) == j);
    }

    SECTION("Numeric Types")
    {
        json j =
        {
            {"int8", 16},
            {"uint8", 255},
            {"int16", 32767},
            {"uint16", 42767},
            {"int32", 2147483647},
            {"uint32", 3147483647},
            {"int64", 9223372036854775807},
            {"uint64", 10223372036854775807ull},
            {"float64", 113243.7863123}
        };
        std::vector<uint8_t> v = {'{',
                                  'i', 7, 'f', 'l', 'o', 'a', 't', '6', '4', 'D', 0xcf, 0x34, 0xbc, 0x94, 0xbc, 0xa5, 0xfb, 0x40,
                                  'i', 5, 'i', 'n', 't', '1', '6', 'I', 0xff, 0x7f,
                                  'i', 5, 'i', 'n', 't', '3', '2', 'l', 0xff, 0xff, 0xff, 0x7f,
                                  'i', 5, 'i', 'n', 't', '6', '4', 'L', 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f,
                                  'i', 4, 'i', 'n', 't', '8', 'i', 16,
                                  'i', 6, 'u', 'i', 'n', 't', '1', '6', 'u', 0x0F, 0xA7,
                                  'i', 6, 'u', 'i', 'n', 't', '3', '2', 'm', 0xFF, 0xC9, 0x9A, 0xBB,
                                  'i', 6, 'u', 'i', 'n', 't', '6', '4', 'M', 0xFF, 0xFF, 0x63, 0xA7, 0xB3, 0xB6, 0xE0, 0x8D,
                                  'i', 5, 'u', 'i', 'n', 't', '8', 'U', 0xff,
                                  '}'
                                 };
        CHECK(json::to_bjdata(j) == v);
        CHECK(json::from_bjdata(v) == j);
    }

    SECTION("Char Type")
    {
        json j = {{"rolecode", "a"}, {"delim", ";"}};
        std::vector<uint8_t> v = {'{', 'i', 5, 'd', 'e', 'l', 'i', 'm', 'C', ';', 'i', 8, 'r', 'o', 'l', 'e', 'c', 'o', 'd', 'e', 'C', 'a', '}'};
        //CHECK(json::to_bjdata(j) == v);
        CHECK(json::from_bjdata(v) == j);
    }

    SECTION("String Type")
    {
        SECTION("English")
        {
            json j = "hello";
            std::vector<uint8_t> v = {'S', 'i', 5, 'h', 'e', 'l', 'l', 'o'};
            CHECK(json::to_bjdata(j) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("Russian")
        {
            json j = "привет";
            std::vector<uint8_t> v = {'S', 'i', 12, 0xD0, 0xBF, 0xD1, 0x80, 0xD0, 0xB8, 0xD0, 0xB2, 0xD0, 0xB5, 0xD1, 0x82};
            CHECK(json::to_bjdata(j) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("Russian")
        {
            json j = "مرحبا";
            std::vector<uint8_t> v = {'S', 'i', 10, 0xD9, 0x85, 0xD8, 0xB1, 0xD8, 0xAD, 0xD8, 0xA8, 0xD8, 0xA7};
            CHECK(json::to_bjdata(j) == v);
            CHECK(json::from_bjdata(v) == j);
        }
    }

    SECTION("Array Type")
    {
        SECTION("size=false type=false")
        {
            // note the float has been replaced by a double
            json j = {nullptr, true, false, 4782345193, 153.132, "ham"};
            std::vector<uint8_t> v = {'[', 'Z', 'T', 'F', 'L', 0xE9, 0xCB, 0x0C, 0x1D, 0x01, 0x00, 0x00, 0x00, 'D', 0x4e, 0x62, 0x10, 0x58, 0x39, 0x24, 0x63, 0x40, 'S', 'i', 3, 'h', 'a', 'm', ']'};
            CHECK(json::to_bjdata(j) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("size=true type=false")
        {
            // note the float has been replaced by a double
            json j = {nullptr, true, false, 4782345193, 153.132, "ham"};
            std::vector<uint8_t> v = {'[', '#', 'i', 6, 'Z', 'T', 'F', 'L', 0xE9, 0xCB, 0x0C, 0x1D, 0x01, 0x00, 0x00, 0x00, 'D', 0x4e, 0x62, 0x10, 0x58, 0x39, 0x24, 0x63, 0x40, 'S', 'i', 3, 'h', 'a', 'm'};
            CHECK(json::to_bjdata(j, true) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("size=true type=true")
        {
            // note the float has been replaced by a double
            json j = {nullptr, true, false, 4782345193, 153.132, "ham"};
            std::vector<uint8_t> v = {'[', '#', 'i', 6, 'Z', 'T', 'F', 'L', 0xE9, 0xCB, 0x0C, 0x1D, 0x01, 0x00, 0x00, 0x00, 'D', 0x4e, 0x62, 0x10, 0x58, 0x39, 0x24, 0x63, 0x40, 'S', 'i', 3, 'h', 'a', 'm'};
            CHECK(json::to_bjdata(j, true, true) == v);
            CHECK(json::from_bjdata(v) == j);
        }
    }

    SECTION("Object Type")
    {
        SECTION("size=false type=false")
        {
            json j =
            {
                {
                    "post", {
                        {"id", 1137},
                        {"author", "rkalla"},
                        {"timestamp", 1364482090592},
                        {"body", "I totally agree!"}
                    }
                }
            };
            std::vector<uint8_t> v = {'{', 'i', 4, 'p', 'o', 's', 't', '{',
                                      'i', 6, 'a', 'u', 't', 'h', 'o', 'r', 'S', 'i', 6, 'r', 'k', 'a', 'l', 'l', 'a',
                                      'i', 4, 'b', 'o', 'd', 'y', 'S', 'i', 16, 'I', ' ', 't', 'o', 't', 'a', 'l', 'l', 'y', ' ', 'a', 'g', 'r', 'e', 'e', '!',
                                      'i', 2, 'i', 'd', 'I', 0x71, 0x04,
                                      'i', 9, 't', 'i', 'm', 'e', 's', 't', 'a', 'm', 'p', 'L', 0x60, 0x66, 0x78, 0xB1, 0x3D, 0x01, 0x00, 0x00,
                                      '}', '}'
                                     };
            CHECK(json::to_bjdata(j) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("size=true type=false")
        {
            json j =
            {
                {
                    "post", {
                        {"id", 1137},
                        {"author", "rkalla"},
                        {"timestamp", 1364482090592},
                        {"body", "I totally agree!"}
                    }
                }
            };
            std::vector<uint8_t> v = {'{', '#', 'i', 1, 'i', 4, 'p', 'o', 's', 't', '{', '#', 'i', 4,
                                      'i', 6, 'a', 'u', 't', 'h', 'o', 'r', 'S', 'i', 6, 'r', 'k', 'a', 'l', 'l', 'a',
                                      'i', 4, 'b', 'o', 'd', 'y', 'S', 'i', 16, 'I', ' ', 't', 'o', 't', 'a', 'l', 'l', 'y', ' ', 'a', 'g', 'r', 'e', 'e', '!',
                                      'i', 2, 'i', 'd', 'I', 0x71, 0x04,
                                      'i', 9, 't', 'i', 'm', 'e', 's', 't', 'a', 'm', 'p', 'L', 0x60, 0x66, 0x78, 0xB1, 0x3D, 0x01, 0x00, 0x00,
                                     };
            CHECK(json::to_bjdata(j, true) == v);
            CHECK(json::from_bjdata(v) == j);
        }

        SECTION("size=true type=true")
        {
            json j =
            {
                {
                    "post", {
                        {"id", 1137},
                        {"author", "rkalla"},
                        {"timestamp", 1364482090592},
                        {"body", "I totally agree!"}
                    }
                }
            };
            std::vector<uint8_t> v = {'{', '#', 'i', 1, 'i', 4, 'p', 'o', 's', 't', '{', '#', 'i', 4,
                                      'i', 6, 'a', 'u', 't', 'h', 'o', 'r', 'S', 'i', 6, 'r', 'k', 'a', 'l', 'l', 'a',
                                      'i', 4, 'b', 'o', 'd', 'y', 'S', 'i', 16, 'I', ' ', 't', 'o', 't', 'a', 'l', 'l', 'y', ' ', 'a', 'g', 'r', 'e', 'e', '!',
                                      'i', 2, 'i', 'd', 'I', 0x71, 0x04,
                                      'i', 9, 't', 'i', 'm', 'e', 's', 't', 'a', 'm', 'p', 'L', 0x60, 0x66, 0x78, 0xB1, 0x3D, 0x01, 0x00, 0x00,
                                     };
            CHECK(json::to_bjdata(j, true, true) == v);
            CHECK(json::from_bjdata(v) == j);
        }
    }

    SECTION("Optimized Format")
    {
        SECTION("Array Example")
        {
            SECTION("No Optimization")
            {
                // note the floats have been replaced by doubles
                json j = {29.97, 31.13, 67.0, 2.113, 23.888};
                std::vector<uint8_t> v = {'[',
                                          'D', 0xb8, 0x1e, 0x85, 0xeb, 0x51, 0xf8, 0x3d, 0x40,
                                          'D', 0xe1, 0x7a, 0x14, 0xae, 0x47, 0x21, 0x3f, 0x40,
                                          'D', 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          'D', 0x81, 0x95, 0x43, 0x8b, 0x6c, 0xe7, 0x00, 0x40,
                                          'D', 0x17, 0xd9, 0xce, 0xf7, 0x53, 0xe3, 0x37, 0x40,
                                          ']'
                                         };
                CHECK(json::to_bjdata(j) == v);
                CHECK(json::from_bjdata(v) == j);
            }

            SECTION("Optimized with count")
            {
                // note the floats have been replaced by doubles
                json j = {29.97, 31.13, 67.0, 2.113, 23.888};
                std::vector<uint8_t> v = {'[', '#', 'i', 5,
                                          'D', 0xb8, 0x1e, 0x85, 0xeb, 0x51, 0xf8, 0x3d, 0x40,
                                          'D', 0xe1, 0x7a, 0x14, 0xae, 0x47, 0x21, 0x3f, 0x40,
                                          'D', 0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          'D', 0x81, 0x95, 0x43, 0x8b, 0x6c, 0xe7, 0x00, 0x40,
                                          'D', 0x17, 0xd9, 0xce, 0xf7, 0x53, 0xe3, 0x37, 0x40,
                                         };
                CHECK(json::to_bjdata(j, true) == v);
                CHECK(json::from_bjdata(v) == j);
            }

            SECTION("Optimized with type & count")
            {
                // note the floats have been replaced by doubles
                json j = {29.97, 31.13, 67.0, 2.113, 23.888};
                std::vector<uint8_t> v = {'[', '$', 'D', '#', 'i', 5,
                                          0xb8, 0x1e, 0x85, 0xeb, 0x51, 0xf8, 0x3d, 0x40,
                                          0xe1, 0x7a, 0x14, 0xae, 0x47, 0x21, 0x3f, 0x40,
                                          0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          0x81, 0x95, 0x43, 0x8b, 0x6c, 0xe7, 0x00, 0x40,
                                          0x17, 0xd9, 0xce, 0xf7, 0x53, 0xe3, 0x37, 0x40,
                                         };
                CHECK(json::to_bjdata(j, true, true) == v);
                CHECK(json::from_bjdata(v) == j);
            }
        }

        SECTION("Object Example")
        {
            SECTION("No Optimization")
            {
                // note the floats have been replaced by doubles
                json j = { {"lat", 29.976}, {"long", 31.131}, {"alt", 67.0} };
                std::vector<uint8_t> v = {'{',
                                          'i', 3, 'a', 'l', 't', 'D',      0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          'i', 3, 'l', 'a', 't', 'D',      0x60, 0xe5, 0xd0, 0x22, 0xdb, 0xf9, 0x3d, 0x40,
                                          'i', 4, 'l', 'o', 'n', 'g', 'D', 0xa8, 0xc6, 0x4b, 0x37, 0x89, 0x21, 0x3f, 0x40,
                                          '}'
                                         };
                CHECK(json::to_bjdata(j) == v);
                CHECK(json::from_bjdata(v) == j);
            }

            SECTION("Optimized with count")
            {
                // note the floats have been replaced by doubles
                json j = { {"lat", 29.976}, {"long", 31.131}, {"alt", 67.0} };
                std::vector<uint8_t> v = {'{', '#', 'i', 3,
                                          'i', 3, 'a', 'l', 't', 'D',      0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          'i', 3, 'l', 'a', 't', 'D',      0x60, 0xe5, 0xd0, 0x22, 0xdb, 0xf9, 0x3d, 0x40,
                                          'i', 4, 'l', 'o', 'n', 'g', 'D', 0xa8, 0xc6, 0x4b, 0x37, 0x89, 0x21, 0x3f, 0x40,
                                         };
                CHECK(json::to_bjdata(j, true) == v);
                CHECK(json::from_bjdata(v) == j);
            }

            SECTION("Optimized with type & count")
            {
                // note the floats have been replaced by doubles
                json j = { {"lat", 29.976}, {"long", 31.131}, {"alt", 67.0} };
                std::vector<uint8_t> v = {'{', '$', 'D', '#', 'i', 3,
                                          'i', 3, 'a', 'l', 't',      0x00, 0x00, 0x00, 0x00, 0x00, 0xc0, 0x50, 0x40,
                                          'i', 3, 'l', 'a', 't',      0x60, 0xe5, 0xd0, 0x22, 0xdb, 0xf9, 0x3d, 0x40,
                                          'i', 4, 'l', 'o', 'n', 'g', 0xa8, 0xc6, 0x4b, 0x37, 0x89, 0x21, 0x3f, 0x40,
                                         };
                CHECK(json::to_bjdata(j, true, true) == v);
                CHECK(json::from_bjdata(v) == j);
            }
        }

        SECTION("Special Cases (Null, No-Op and Boolean)")
        {
            SECTION("Array")
            {
                json _;
                std::vector<uint8_t> v = {'[', '$', 'N', '#', 'I', 0x00, 0x02};
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x4E is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v, true, false).is_discarded());
            }

            SECTION("Object")
            {
                json _;
                std::vector<uint8_t> v = {'{', '$', 'Z', '#', 'i', 3, 'i', 4, 'n', 'a', 'm', 'e', 'i', 8, 'p', 'a', 's', 's', 'w', 'o', 'r', 'd', 'i', 5, 'e', 'm', 'a', 'i', 'l'};
                CHECK_THROWS_WITH_AS(_ = json::from_bjdata(v), "[json.exception.parse_error.112] parse error at byte 3: syntax error while parsing BJData type: marker 0x5A is not a permitted optimized array type", json::parse_error&);
                CHECK(json::from_bjdata(v, true, false).is_discarded());
            }
        }
    }
}

#if !defined(JSON_NOEXCEPTION)
TEST_CASE("all BJData first bytes")
{
    // these bytes will fail immediately with exception parse_error.112
    std::set<uint8_t> supported =
    {
        'T', 'F', 'Z', 'U', 'i', 'I', 'l', 'L', 'd', 'D', 'C', 'S', '[', '{', 'N', 'H', 'u', 'm', 'M', 'h'
    };

    for (auto i = 0; i < 256; ++i)
    {
        const auto byte = static_cast<uint8_t>(i);
        CAPTURE(byte)

        try
        {
            auto res = json::from_bjdata(std::vector<uint8_t>(1, byte));
        }
        catch (const json::parse_error& e)
        {
            // check that parse_error.112 is only thrown if the
            // first byte is not in the supported set
            INFO_WITH_TEMP(e.what());
            if (supported.find(byte) == supported.end())
            {
                CHECK(e.id == 112);
            }
            else
            {
                CHECK(e.id != 112);
            }
        }
    }
}
#endif

TEST_CASE("BJData roundtrips" * doctest::skip())
{
    SECTION("input from self-generated BJData files")
    {
        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",
                    TEST_DATA_DIRECTORY "/json_tests/pass1.json",
                    TEST_DATA_DIRECTORY "/json_tests/pass2.json",
                    TEST_DATA_DIRECTORY "/json_tests/pass3.json"
                })
        {
            CAPTURE(filename)

            {
                INFO_WITH_TEMP(filename + ": std::vector<uint8_t>");
                // parse JSON file
                std::ifstream f_json(filename);
                json j1 = json::parse(f_json);

                // parse BJData file
                auto packed = utils::read_binary_file(filename + ".bjdata");
                json j2;
                CHECK_NOTHROW(j2 = json::from_bjdata(packed));

                // compare parsed JSON values
                CHECK(j1 == j2);
            }

            {
                INFO_WITH_TEMP(filename + ": std::ifstream");
                // parse JSON file
                std::ifstream f_json(filename);
                json j1 = json::parse(f_json);

                // parse BJData file
                std::ifstream f_bjdata(filename + ".bjdata", std::ios::binary);
                json j2;
                CHECK_NOTHROW(j2 = json::from_bjdata(f_bjdata));

                // compare parsed JSON values
                CHECK(j1 == j2);
            }

            {
                INFO_WITH_TEMP(filename + ": output to output adapters");
                // parse JSON file
                std::ifstream f_json(filename);
                json j1 = json::parse(f_json);

                // parse BJData file
                auto packed = utils::read_binary_file(filename + ".bjdata");

                {
                    INFO_WITH_TEMP(filename + ": output adapters: std::vector<uint8_t>");
                    std::vector<uint8_t> vec;
                    json::to_bjdata(j1, vec);
                    CHECK(vec == packed);
                }
            }
        }
    }
}