✅ more msgpack test cases
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Niels Lohmann
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be973e52bb
commit
474da6b28f
1 changed files with 147 additions and 0 deletions
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@ -37,6 +37,14 @@ TEST_CASE("MessagePack")
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{
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SECTION("individual values")
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{
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SECTION("discarded")
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{
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// discarded values are not serialized
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json j = json::value_t::discarded;
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const auto result = json::to_msgpack(j);
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CHECK(result.empty());
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}
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SECTION("null")
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{
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json j = nullptr;
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@ -255,6 +263,55 @@ TEST_CASE("MessagePack")
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CHECK(json::from_msgpack(result) == j);
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}
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}
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SECTION("-9223372036854775808..-2147483649 (int 64)")
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{
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for (int64_t i :
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{
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-9223372036854775807 - 1, -2147483649
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})
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{
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CAPTURE(i);
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// create JSON value with unsigned integer number
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json j = i;
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// check type
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CHECK(j.is_number_integer());
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// create expected byte vector
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std::vector<uint8_t> expected;
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expected.push_back(0xd3);
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expected.push_back(static_cast<uint8_t>((i >> 070) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 060) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 050) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 040) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 030) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 020) & 0xff));
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expected.push_back(static_cast<uint8_t>((i >> 010) & 0xff));
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expected.push_back(static_cast<uint8_t>(i & 0xff));
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// compare result + size
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const auto result = json::to_msgpack(j);
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CHECK(result == expected);
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CHECK(result.size() == 9);
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// check individual bytes
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CHECK(result[0] == 0xd3);
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int64_t restored = static_cast<int64_t>((static_cast<int64_t>(result[1]) << 070) +
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(static_cast<int64_t>(result[2]) << 060) +
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(static_cast<int64_t>(result[3]) << 050) +
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(static_cast<int64_t>(result[4]) << 040) +
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(static_cast<int64_t>(result[5]) << 030) +
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(static_cast<int64_t>(result[6]) << 020) +
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(static_cast<int64_t>(result[7]) << 010) +
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static_cast<int64_t>(result[8]));
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CHECK(restored == i);
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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}
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}
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SECTION("unsigned")
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@ -659,6 +716,43 @@ TEST_CASE("MessagePack")
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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SECTION("array 16")
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{
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json j(16, nullptr);
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std::vector<uint8_t> expected(j.size() + 3, 0xc0); // all null
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expected[0] = 0xdc; // array 16
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expected[1] = 0x00; // size (0x0010), byte 0
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expected[2] = 0x10; // size (0x0010), byte 1
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const auto result = json::to_msgpack(j);
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CHECK(result == expected);
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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SECTION("array 32")
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{
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json j(65536, nullptr);
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std::vector<uint8_t> expected(j.size() + 5, 0xc0); // all null
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expected[0] = 0xdd; // array 32
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expected[1] = 0x00; // size (0x00100000), byte 0
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expected[2] = 0x01; // size (0x00100000), byte 1
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expected[3] = 0x00; // size (0x00100000), byte 2
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expected[4] = 0x00; // size (0x00100000), byte 3
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const auto result = json::to_msgpack(j);
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//CHECK(result == expected);
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CHECK(result.size() == expected.size());
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for (size_t i = 0; i < expected.size(); ++i)
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{
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CAPTURE(i);
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CHECK(result[i] == expected[i]);
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}
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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}
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SECTION("object")
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@ -698,6 +792,59 @@ TEST_CASE("MessagePack")
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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SECTION("map 16")
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{
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json j = R"({"00": null, "01": null, "02": null, "03": null,
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"04": null, "05": null, "06": null, "07": null,
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"08": null, "09": null, "10": null, "11": null,
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"12": null, "13": null, "14": null, "15": null})"_json;
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const auto result = json::to_msgpack(j);
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// Checking against an expected vector byte by byte is
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// difficult, because no assumption on the order of key/value
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// pairs are made. We therefore only check the prefix (type and
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// size and the overall size. The rest is then handled in the
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// roundtrip check.
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CHECK(result.size() == 67); // 1 type, 2 size, 16*4 content
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CHECK(result[0] == 0xde); // map 16
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CHECK(result[1] == 0x00); // byte 0 of size (0x0010)
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CHECK(result[2] == 0x10); // byte 1 of size (0x0010)
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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SECTION("map 32")
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{
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json j;
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for (auto i = 0; i < 65536; ++i)
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{
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// format i to a fixed width of 5
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// each entry will need 7 bytes: 6 for fixstr, 1 for null
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std::stringstream ss;
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ss << std::setw(5) << std::setfill('0') << i;
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j.emplace(ss.str(), nullptr);
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}
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const auto result = json::to_msgpack(j);
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// Checking against an expected vector byte by byte is
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// difficult, because no assumption on the order of key/value
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// pairs are made. We therefore only check the prefix (type and
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// size and the overall size. The rest is then handled in the
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// roundtrip check.
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CHECK(result.size() == 458757); // 1 type, 4 size, 65536*7 content
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CHECK(result[0] == 0xdf); // map 32
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CHECK(result[1] == 0x00); // byte 0 of size (0x00010000)
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CHECK(result[2] == 0x01); // byte 1 of size (0x00010000)
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CHECK(result[3] == 0x00); // byte 2 of size (0x00010000)
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CHECK(result[4] == 0x00); // byte 3 of size (0x00010000)
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// roundtrip
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CHECK(json::from_msgpack(result) == j);
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}
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}
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}
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}
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