// __ _____ _____ _____ // __| | __| | | | JSON for Modern C++ (supporting code) // | | |__ | | | | | | version 3.12.0 // |_____|_____|_____|_|___| https://github.com/nlohmann/json // // SPDX-FileCopyrightText: 2013 - 2025 Niels Lohmann // SPDX-License-Identifier: MIT #include "doctest_compatibility.h" #include using nlohmann::json; #include #include "make_test_data_available.hpp" TEST_CASE("Binary Formats" * doctest::skip()) { SECTION("canada.json") { const auto* filename = TEST_DATA_DIRECTORY "/nativejson-benchmark/canada.json"; const json j = json::parse(std::ifstream(filename)); const auto json_size = j.dump().size(); const auto bjdata_1_size = json::to_bjdata(j).size(); const auto bjdata_2_size = json::to_bjdata(j, true).size(); const auto bjdata_3_size = json::to_bjdata(j, true, true).size(); const auto bson_size = json::to_bson(j).size(); const auto cbor_size = json::to_cbor(j).size(); const auto msgpack_size = json::to_msgpack(j).size(); const auto ubjson_1_size = json::to_ubjson(j).size(); const auto ubjson_2_size = json::to_ubjson(j, true).size(); const auto ubjson_3_size = json::to_ubjson(j, true, true).size(); CHECK(json_size == 2090303); CHECK(bjdata_1_size == 1112030); CHECK(bjdata_2_size == 1224148); CHECK(bjdata_3_size == 1224148); CHECK(bson_size == 1794522); CHECK(cbor_size == 1055552); CHECK(msgpack_size == 1056145); CHECK(ubjson_1_size == 1112030); CHECK(ubjson_2_size == 1224148); CHECK(ubjson_3_size == 1169069); CHECK((100.0 * double(json_size) / double(json_size)) == Approx(100.0)); CHECK((100.0 * double(bjdata_1_size) / double(json_size)) == Approx(53.199)); CHECK((100.0 * double(bjdata_2_size) / double(json_size)) == Approx(58.563)); CHECK((100.0 * double(bjdata_3_size) / double(json_size)) == Approx(58.563)); CHECK((100.0 * double(bson_size) / double(json_size)) == Approx(85.849)); CHECK((100.0 * double(cbor_size) / double(json_size)) == Approx(50.497)); CHECK((100.0 * double(msgpack_size) / double(json_size)) == Approx(50.526)); CHECK((100.0 * double(ubjson_1_size) / double(json_size)) == Approx(53.199)); CHECK((100.0 * double(ubjson_2_size) / double(json_size)) == Approx(58.563)); CHECK((100.0 * double(ubjson_3_size) / double(json_size)) == Approx(55.928)); } SECTION("twitter.json") { const auto* filename = TEST_DATA_DIRECTORY "/nativejson-benchmark/twitter.json"; const json j = json::parse(std::ifstream(filename)); const auto json_size = j.dump().size(); const auto bjdata_1_size = json::to_bjdata(j).size(); const auto bjdata_2_size = json::to_bjdata(j, true).size(); const auto bjdata_3_size = json::to_bjdata(j, true, true).size(); const auto bson_size = json::to_bson(j).size(); const auto cbor_size = json::to_cbor(j).size(); const auto msgpack_size = json::to_msgpack(j).size(); const auto ubjson_1_size = json::to_ubjson(j).size(); const auto ubjson_2_size = json::to_ubjson(j, true).size(); const auto ubjson_3_size = json::to_ubjson(j, true, true).size(); CHECK(json_size == 466906); CHECK(bjdata_1_size == 425342); CHECK(bjdata_2_size == 429970); CHECK(bjdata_3_size == 429970); CHECK(bson_size == 444568); CHECK(cbor_size == 402814); CHECK(msgpack_size == 401510); CHECK(ubjson_1_size == 426160); CHECK(ubjson_2_size == 430788); CHECK(ubjson_3_size == 430798); CHECK((100.0 * double(json_size) / double(json_size)) == Approx(100.0)); CHECK((100.0 * double(bjdata_1_size) / double(json_size)) == Approx(91.097)); CHECK((100.0 * double(bjdata_2_size) / double(json_size)) == Approx(92.089)); CHECK((100.0 * double(bjdata_3_size) / double(json_size)) == Approx(92.089)); CHECK((100.0 * double(bson_size) / double(json_size)) == Approx(95.215)); CHECK((100.0 * double(cbor_size) / double(json_size)) == Approx(86.273)); CHECK((100.0 * double(msgpack_size) / double(json_size)) == Approx(85.993)); CHECK((100.0 * double(ubjson_1_size) / double(json_size)) == Approx(91.273)); CHECK((100.0 * double(ubjson_2_size) / double(json_size)) == Approx(92.264)); CHECK((100.0 * double(ubjson_3_size) / double(json_size)) == Approx(92.266)); } SECTION("citm_catalog.json") { const auto* filename = TEST_DATA_DIRECTORY "/nativejson-benchmark/citm_catalog.json"; const json j = json::parse(std::ifstream(filename)); const auto json_size = j.dump().size(); const auto bjdata_1_size = json::to_bjdata(j).size(); const auto bjdata_2_size = json::to_bjdata(j, true).size(); const auto bjdata_3_size = json::to_bjdata(j, true, true).size(); const auto bson_size = json::to_bson(j).size(); const auto cbor_size = json::to_cbor(j).size(); const auto msgpack_size = json::to_msgpack(j).size(); const auto ubjson_1_size = json::to_ubjson(j).size(); const auto ubjson_2_size = json::to_ubjson(j, true).size(); const auto ubjson_3_size = json::to_ubjson(j, true, true).size(); CHECK(json_size == 500299); CHECK(bjdata_1_size == 390781); CHECK(bjdata_2_size == 433557); CHECK(bjdata_3_size == 432964); CHECK(bson_size == 479430); CHECK(cbor_size == 342373); CHECK(msgpack_size == 342473); CHECK(ubjson_1_size == 391463); CHECK(ubjson_2_size == 434239); CHECK(ubjson_3_size == 425073); CHECK((100.0 * double(json_size) / double(json_size)) == Approx(100.0)); CHECK((100.0 * double(bjdata_1_size) / double(json_size)) == Approx(78.109)); CHECK((100.0 * double(bjdata_2_size) / double(json_size)) == Approx(86.659)); CHECK((100.0 * double(bjdata_3_size) / double(json_size)) == Approx(86.541)); CHECK((100.0 * double(bson_size) / double(json_size)) == Approx(95.828)); CHECK((100.0 * double(cbor_size) / double(json_size)) == Approx(68.433)); CHECK((100.0 * double(msgpack_size) / double(json_size)) == Approx(68.453)); CHECK((100.0 * double(ubjson_1_size) / double(json_size)) == Approx(78.245)); CHECK((100.0 * double(ubjson_2_size) / double(json_size)) == Approx(86.795)); CHECK((100.0 * double(ubjson_3_size) / double(json_size)) == Approx(84.963)); } SECTION("jeopardy.json") { const auto* filename = TEST_DATA_DIRECTORY "/jeopardy/jeopardy.json"; json j = json::parse(std::ifstream(filename)); const auto json_size = j.dump().size(); const auto bjdata_1_size = json::to_bjdata(j).size(); const auto bjdata_2_size = json::to_bjdata(j, true).size(); const auto bjdata_3_size = json::to_bjdata(j, true, true).size(); const auto bson_size = json::to_bson({{"", j}}).size(); // wrap array in object for BSON const auto cbor_size = json::to_cbor(j).size(); const auto msgpack_size = json::to_msgpack(j).size(); const auto ubjson_1_size = json::to_ubjson(j).size(); const auto ubjson_2_size = json::to_ubjson(j, true).size(); const auto ubjson_3_size = json::to_ubjson(j, true, true).size(); CHECK(json_size == 52508728); CHECK(bjdata_1_size == 50710965); CHECK(bjdata_2_size == 51144830); CHECK(bjdata_3_size == 51144830); CHECK(bson_size == 56008520); CHECK(cbor_size == 46187320); CHECK(msgpack_size == 46158575); CHECK(ubjson_1_size == 50710965); CHECK(ubjson_2_size == 51144830); CHECK(ubjson_3_size == 49861422); CHECK((100.0 * double(json_size) / double(json_size)) == Approx(100.0)); CHECK((100.0 * double(bjdata_1_size) / double(json_size)) == Approx(96.576)); CHECK((100.0 * double(bjdata_2_size) / double(json_size)) == Approx(97.402)); CHECK((100.0 * double(bjdata_3_size) / double(json_size)) == Approx(97.402)); CHECK((100.0 * double(bson_size) / double(json_size)) == Approx(106.665)); CHECK((100.0 * double(cbor_size) / double(json_size)) == Approx(87.961)); CHECK((100.0 * double(msgpack_size) / double(json_size)) == Approx(87.906)); CHECK((100.0 * double(ubjson_1_size) / double(json_size)) == Approx(96.576)); CHECK((100.0 * double(ubjson_2_size) / double(json_size)) == Approx(97.402)); CHECK((100.0 * double(ubjson_3_size) / double(json_size)) == Approx(94.958)); } SECTION("sample.json") { const auto* filename = TEST_DATA_DIRECTORY "/json_testsuite/sample.json"; const json j = json::parse(std::ifstream(filename)); const auto json_size = j.dump().size(); const auto bjdata_1_size = json::to_bjdata(j).size(); const auto bjdata_2_size = json::to_bjdata(j, true).size(); const auto bjdata_3_size = json::to_bjdata(j, true, true).size(); // BSON cannot process the file as it contains code point U+0000 const auto cbor_size = json::to_cbor(j).size(); const auto msgpack_size = json::to_msgpack(j).size(); const auto ubjson_1_size = json::to_ubjson(j).size(); const auto ubjson_2_size = json::to_ubjson(j, true).size(); const auto ubjson_3_size = json::to_ubjson(j, true, true).size(); CHECK(json_size == 168677); CHECK(bjdata_1_size == 148695); CHECK(bjdata_2_size == 150569); CHECK(bjdata_3_size == 150569); CHECK(cbor_size == 147095); CHECK(msgpack_size == 147017); CHECK(ubjson_1_size == 148695); CHECK(ubjson_2_size == 150569); CHECK(ubjson_3_size == 150883); CHECK((100.0 * double(json_size) / double(json_size)) == Approx(100.0)); CHECK((100.0 * double(bjdata_1_size) / double(json_size)) == Approx(88.153)); CHECK((100.0 * double(bjdata_2_size) / double(json_size)) == Approx(89.264)); CHECK((100.0 * double(bjdata_3_size) / double(json_size)) == Approx(89.264)); CHECK((100.0 * double(cbor_size) / double(json_size)) == Approx(87.205)); CHECK((100.0 * double(msgpack_size) / double(json_size)) == Approx(87.158)); CHECK((100.0 * double(ubjson_1_size) / double(json_size)) == Approx(88.153)); CHECK((100.0 * double(ubjson_2_size) / double(json_size)) == Approx(89.264)); CHECK((100.0 * double(ubjson_3_size) / double(json_size)) == Approx(89.450)); } }