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unit-msgpack.cpp
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1961 lines (1695 loc) · 88.8 KB
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// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++ (supporting code)
// | | |__ | | | | | | version 3.12.0
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// SPDX-FileCopyrightText: 2013-2026 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT
#include "doctest_compatibility.h"
#include <nlohmann/json.hpp>
using nlohmann::json;
#ifdef JSON_TEST_NO_GLOBAL_UDLS
using namespace nlohmann::literals; // NOLINT(google-build-using-namespace)
#endif
#include <fstream>
#include <sstream>
#include <iomanip>
#include <limits>
#include <set>
#include "make_test_data_available.hpp"
#include "test_utils.hpp"
namespace
{
class SaxCountdown
{
public:
explicit SaxCountdown(const int count) : events_left(count)
{}
bool null()
{
return events_left-- > 0;
}
bool boolean(bool /*unused*/)
{
return events_left-- > 0;
}
bool number_integer(json::number_integer_t /*unused*/)
{
return events_left-- > 0;
}
bool number_unsigned(json::number_unsigned_t /*unused*/)
{
return events_left-- > 0;
}
bool number_float(json::number_float_t /*unused*/, const std::string& /*unused*/)
{
return events_left-- > 0;
}
bool string(std::string& /*unused*/)
{
return events_left-- > 0;
}
bool binary(std::vector<std::uint8_t>& /*unused*/)
{
return events_left-- > 0;
}
bool start_object(std::size_t /*unused*/)
{
return events_left-- > 0;
}
bool key(std::string& /*unused*/)
{
return events_left-- > 0;
}
bool end_object()
{
return events_left-- > 0;
}
bool start_array(std::size_t /*unused*/)
{
return events_left-- > 0;
}
bool end_array()
{
return events_left-- > 0;
}
bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const json::exception& /*unused*/) // NOLINT(readability-convert-member-functions-to-static)
{
return false;
}
private:
int events_left = 0;
};
} // namespace
TEST_CASE("MessagePack")
{
SECTION("individual values")
{
SECTION("discarded")
{
// discarded values are not serialized
json const j = json::value_t::discarded;
const auto result = json::to_msgpack(j);
CHECK(result.empty());
}
SECTION("null")
{
json const j = nullptr;
std::vector<uint8_t> const expected = {0xc0};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("boolean")
{
SECTION("true")
{
json const j = true;
std::vector<uint8_t> const expected = {0xc3};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("false")
{
json const j = false;
std::vector<uint8_t> const expected = {0xc2};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("number")
{
SECTION("signed")
{
SECTION("-32..-1 (negative fixnum)")
{
for (auto i = -32; i <= -1; ++i)
{
CAPTURE(i)
// create JSON value with integer number
json const j = i;
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
static_cast<uint8_t>(i)
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 1);
// check individual bytes
CHECK(static_cast<int8_t>(result[0]) == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("0..127 (positive fixnum)")
{
for (size_t i = 0; i <= 127; ++i)
{
CAPTURE(i)
// create JSON value with integer number
json j = -1;
j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i);
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected{static_cast<uint8_t>(i)};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 1);
// check individual bytes
CHECK(result[0] == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("128..255 (int 8)")
{
for (size_t i = 128; i <= 255; ++i)
{
CAPTURE(i)
// create JSON value with integer number
json j = -1;
j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i);
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcc,
static_cast<uint8_t>(i),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 2);
// check individual bytes
CHECK(result[0] == 0xcc);
auto const restored = static_cast<uint8_t>(result[1]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("256..65535 (int 16)")
{
for (size_t i = 256; i <= 65535; ++i)
{
CAPTURE(i)
// create JSON value with integer number
json j = -1;
j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i);
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcd,
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 3);
// check individual bytes
CHECK(result[0] == 0xcd);
auto const restored = static_cast<uint16_t>((static_cast<uint8_t>(result[1]) * 256) + static_cast<uint8_t>(result[2]));
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("65536..4294967295 (int 32)")
{
for (uint32_t i :
{
65536u, 77777u, 1048576u, 4294967295u
})
{
CAPTURE(i)
// create JSON value with integer number
json j = -1;
j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i);
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xce,
static_cast<uint8_t>((i >> 24) & 0xff),
static_cast<uint8_t>((i >> 16) & 0xff),
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 5);
// check individual bytes
CHECK(result[0] == 0xce);
uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) +
(static_cast<uint32_t>(result[2]) << 020) +
(static_cast<uint32_t>(result[3]) << 010) +
static_cast<uint32_t>(result[4]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("4294967296..9223372036854775807 (int 64)")
{
for (uint64_t i :
{
4294967296LU, 9223372036854775807LU
})
{
CAPTURE(i)
// create JSON value with integer number
json j = -1;
j.get_ref<json::number_integer_t&>() = static_cast<json::number_integer_t>(i);
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcf,
static_cast<uint8_t>((i >> 070) & 0xff),
static_cast<uint8_t>((i >> 060) & 0xff),
static_cast<uint8_t>((i >> 050) & 0xff),
static_cast<uint8_t>((i >> 040) & 0xff),
static_cast<uint8_t>((i >> 030) & 0xff),
static_cast<uint8_t>((i >> 020) & 0xff),
static_cast<uint8_t>((i >> 010) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 9);
// check individual bytes
CHECK(result[0] == 0xcf);
uint64_t const restored = (static_cast<uint64_t>(result[1]) << 070) +
(static_cast<uint64_t>(result[2]) << 060) +
(static_cast<uint64_t>(result[3]) << 050) +
(static_cast<uint64_t>(result[4]) << 040) +
(static_cast<uint64_t>(result[5]) << 030) +
(static_cast<uint64_t>(result[6]) << 020) +
(static_cast<uint64_t>(result[7]) << 010) +
static_cast<uint64_t>(result[8]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("-128..-33 (int 8)")
{
for (auto i = -128; i <= -33; ++i)
{
CAPTURE(i)
// create JSON value with integer number
json const j = i;
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xd0,
static_cast<uint8_t>(i),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 2);
// check individual bytes
CHECK(result[0] == 0xd0);
CHECK(static_cast<int8_t>(result[1]) == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("-9263 (int 16)")
{
json const j = -9263;
std::vector<uint8_t> const expected = {0xd1, 0xdb, 0xd1};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
auto const restored = static_cast<int16_t>((result[1] << 8) + result[2]);
CHECK(restored == -9263);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("-32768..-129 (int 16)")
{
for (int16_t i = -32768; i <= static_cast<std::int16_t>(-129); ++i)
{
CAPTURE(i)
// create JSON value with integer number
json const j = i;
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xd1,
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 3);
// check individual bytes
CHECK(result[0] == 0xd1);
auto const restored = static_cast<int16_t>((result[1] << 8) + result[2]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("-32769..-2147483648")
{
std::vector<int32_t> const numbers
{
-32769,
-65536,
-77777,
-1048576,
-2147483648LL,
};
for (auto i : numbers)
{
CAPTURE(i)
// create JSON value with integer number
json const j = i;
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xd2,
static_cast<uint8_t>((i >> 24) & 0xff),
static_cast<uint8_t>((i >> 16) & 0xff),
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 5);
// check individual bytes
CHECK(result[0] == 0xd2);
uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) +
(static_cast<uint32_t>(result[2]) << 020) +
(static_cast<uint32_t>(result[3]) << 010) +
static_cast<uint32_t>(result[4]);
CHECK(static_cast<std::int32_t>(restored) == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("-9223372036854775808..-2147483649 (int 64)")
{
std::vector<int64_t> const numbers
{
(std::numeric_limits<int64_t>::min)(),
-2147483649LL,
};
for (auto i : numbers)
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_integer());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xd3,
static_cast<uint8_t>((i >> 070) & 0xff),
static_cast<uint8_t>((i >> 060) & 0xff),
static_cast<uint8_t>((i >> 050) & 0xff),
static_cast<uint8_t>((i >> 040) & 0xff),
static_cast<uint8_t>((i >> 030) & 0xff),
static_cast<uint8_t>((i >> 020) & 0xff),
static_cast<uint8_t>((i >> 010) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 9);
// check individual bytes
CHECK(result[0] == 0xd3);
int64_t const restored = (static_cast<int64_t>(result[1]) << 070) +
(static_cast<int64_t>(result[2]) << 060) +
(static_cast<int64_t>(result[3]) << 050) +
(static_cast<int64_t>(result[4]) << 040) +
(static_cast<int64_t>(result[5]) << 030) +
(static_cast<int64_t>(result[6]) << 020) +
(static_cast<int64_t>(result[7]) << 010) +
static_cast<int64_t>(result[8]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
SECTION("unsigned")
{
SECTION("0..127 (positive fixnum)")
{
for (size_t i = 0; i <= 127; ++i)
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_unsigned());
// create expected byte vector
std::vector<uint8_t> const expected{static_cast<uint8_t>(i)};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 1);
// check individual bytes
CHECK(result[0] == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("128..255 (uint 8)")
{
for (size_t i = 128; i <= 255; ++i)
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_unsigned());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcc,
static_cast<uint8_t>(i),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 2);
// check individual bytes
CHECK(result[0] == 0xcc);
auto const restored = static_cast<uint8_t>(result[1]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("256..65535 (uint 16)")
{
for (size_t i = 256; i <= 65535; ++i)
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_unsigned());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcd,
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 3);
// check individual bytes
CHECK(result[0] == 0xcd);
auto const restored = static_cast<uint16_t>((static_cast<uint8_t>(result[1]) * 256) + static_cast<uint8_t>(result[2]));
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("65536..4294967295 (uint 32)")
{
for (const uint32_t i :
{
65536u, 77777u, 1048576u, 4294967295u
})
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_unsigned());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xce,
static_cast<uint8_t>((i >> 24) & 0xff),
static_cast<uint8_t>((i >> 16) & 0xff),
static_cast<uint8_t>((i >> 8) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 5);
// check individual bytes
CHECK(result[0] == 0xce);
uint32_t const restored = (static_cast<uint32_t>(result[1]) << 030) +
(static_cast<uint32_t>(result[2]) << 020) +
(static_cast<uint32_t>(result[3]) << 010) +
static_cast<uint32_t>(result[4]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("4294967296..18446744073709551615 (uint 64)")
{
for (const uint64_t i :
{
4294967296LU, 18446744073709551615LU
})
{
CAPTURE(i)
// create JSON value with unsigned integer number
json const j = i;
// check type
CHECK(j.is_number_unsigned());
// create expected byte vector
std::vector<uint8_t> const expected
{
0xcf,
static_cast<uint8_t>((i >> 070) & 0xff),
static_cast<uint8_t>((i >> 060) & 0xff),
static_cast<uint8_t>((i >> 050) & 0xff),
static_cast<uint8_t>((i >> 040) & 0xff),
static_cast<uint8_t>((i >> 030) & 0xff),
static_cast<uint8_t>((i >> 020) & 0xff),
static_cast<uint8_t>((i >> 010) & 0xff),
static_cast<uint8_t>(i & 0xff),
};
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == 9);
// check individual bytes
CHECK(result[0] == 0xcf);
uint64_t const restored = (static_cast<uint64_t>(result[1]) << 070) +
(static_cast<uint64_t>(result[2]) << 060) +
(static_cast<uint64_t>(result[3]) << 050) +
(static_cast<uint64_t>(result[4]) << 040) +
(static_cast<uint64_t>(result[5]) << 030) +
(static_cast<uint64_t>(result[6]) << 020) +
(static_cast<uint64_t>(result[7]) << 010) +
static_cast<uint64_t>(result[8]);
CHECK(restored == i);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
SECTION("float")
{
SECTION("3.1415925")
{
double const v = 3.1415925;
json const j = v;
std::vector<uint8_t> const expected =
{
0xcb, 0x40, 0x09, 0x21, 0xfb, 0x3f, 0xa6, 0xde, 0xfc
};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("1.0")
{
double const v = 1.0;
json const j = v;
std::vector<uint8_t> const expected =
{
0xca, 0x3f, 0x80, 0x00, 0x00
};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("128.128")
{
double const v = 128.1280059814453125;
json const j = v;
std::vector<uint8_t> const expected =
{
0xca, 0x43, 0x00, 0x20, 0xc5
};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result) == v);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
SECTION("string")
{
SECTION("N = 0..31")
{
// explicitly enumerate the first byte for all 32 strings
const std::vector<uint8_t> first_bytes =
{
0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8,
0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1,
0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba,
0xbb, 0xbc, 0xbd, 0xbe, 0xbf
};
for (size_t N = 0; N < first_bytes.size(); ++N)
{
CAPTURE(N)
// create JSON value with string containing of N * 'x'
const auto s = std::string(N, 'x');
json const j = s;
// create expected byte vector
std::vector<uint8_t> expected;
expected.push_back(first_bytes[N]);
for (size_t i = 0; i < N; ++i)
{
expected.push_back('x');
}
// check first byte
CHECK((first_bytes[N] & 0x1f) == N);
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == N + 1);
// check that no null byte is appended
if (N > 0)
{
CHECK(result.back() != '\x00');
}
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("N = 32..255")
{
for (size_t N = 32; N <= 255; ++N)
{
CAPTURE(N)
// create JSON value with string containing of N * 'x'
const auto s = std::string(N, 'x');
json const j = s;
// create expected byte vector
std::vector<uint8_t> expected;
expected.push_back(0xd9);
expected.push_back(static_cast<uint8_t>(N));
for (size_t i = 0; i < N; ++i)
{
expected.push_back('x');
}
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == N + 2);
// check that no null byte is appended
CHECK(result.back() != '\x00');
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("N = 256..65535")
{
for (size_t N :
{
256u, 999u, 1025u, 3333u, 2048u, 65535u
})
{
CAPTURE(N)
// create JSON value with string containing of N * 'x'
const auto s = std::string(N, 'x');
json const j = s;
// create expected byte vector (hack: create string first)
std::vector<uint8_t> expected(N, 'x');
// reverse order of commands, because we insert at begin()
expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff));
expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff));
expected.insert(expected.begin(), 0xda);
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == N + 3);
// check that no null byte is appended
CHECK(result.back() != '\x00');
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
SECTION("N = 65536..4294967295")
{
for (size_t N :
{
65536u, 77777u, 1048576u
})
{
CAPTURE(N)
// create JSON value with string containing of N * 'x'
const auto s = std::string(N, 'x');
json const j = s;
// create expected byte vector (hack: create string first)
std::vector<uint8_t> expected(N, 'x');
// reverse order of commands, because we insert at begin()
expected.insert(expected.begin(), static_cast<uint8_t>(N & 0xff));
expected.insert(expected.begin(), static_cast<uint8_t>((N >> 8) & 0xff));
expected.insert(expected.begin(), static_cast<uint8_t>((N >> 16) & 0xff));
expected.insert(expected.begin(), static_cast<uint8_t>((N >> 24) & 0xff));
expected.insert(expected.begin(), 0xdb);
// compare result + size
const auto result = json::to_msgpack(j);
CHECK(result == expected);
CHECK(result.size() == N + 5);
// check that no null byte is appended
CHECK(result.back() != '\x00');
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
}
}
SECTION("array")
{
SECTION("empty")
{
json const j = json::array();
std::vector<uint8_t> const expected = {0x90};
const auto result = json::to_msgpack(j);
CHECK(result == expected);
// roundtrip
CHECK(json::from_msgpack(result) == j);
CHECK(json::from_msgpack(result, true, false) == j);
}
SECTION("[null]")
{
json const j = {nullptr};