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72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
// __ _____ _____ _____
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// __| | __| | | | JSON for Modern C++ (supporting code)
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// | | |__ | | | | | | version 3.11.3
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// |_____|_____|_____|_|___| https://github.com/nlohmann/json
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//
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// SPDX-FileCopyrightText: 2013-2023 Niels Lohmann <https://nlohmann.me>
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// SPDX-License-Identifier: MIT
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#include "doctest_compatibility.h"
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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using nlohmann::ordered_json;
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TEST_CASE("ordered_json")
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{
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json j;
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ordered_json oj;
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j["element3"] = 3;
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j["element1"] = 1;
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j["element2"] = 2;
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oj["element3"] = 3;
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oj["element1"] = 1;
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oj["element2"] = 2;
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CHECK(j.dump() == "{\"element1\":1,\"element2\":2,\"element3\":3}");
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CHECK(oj.dump() == "{\"element3\":3,\"element1\":1,\"element2\":2}");
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CHECK(j == json(oj));
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CHECK(ordered_json(json(oj)) == ordered_json(j));
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j.erase("element1");
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oj.erase("element1");
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CHECK(j.dump() == "{\"element2\":2,\"element3\":3}");
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CHECK(oj.dump() == "{\"element3\":3,\"element2\":2}");
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// remove again and nothing changes
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j.erase("element1");
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oj.erase("element1");
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CHECK(j.dump() == "{\"element2\":2,\"element3\":3}");
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CHECK(oj.dump() == "{\"element3\":3,\"element2\":2}");
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// There are no dup keys cause constructor calls emplace...
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json const multi {{"z", 1}, {"m", 2}, {"m", 3}, {"y", 4}, {"m", 5}};
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CHECK(multi.size() == 3);
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CHECK(multi.dump() == "{\"m\":2,\"y\":4,\"z\":1}");
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ordered_json multi_ordered {{"z", 1}, {"m", 2}, {"m", 3}, {"y", 4}, {"m", 5}};
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CHECK(multi_ordered.size() == 3);
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CHECK(multi_ordered.dump() == "{\"z\":1,\"m\":2,\"y\":4}");
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CHECK(multi_ordered.erase("m") == 1);
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CHECK(multi_ordered.dump() == "{\"z\":1,\"y\":4}");
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// Ranged insert test.
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// It seems that values shouldn't be overwritten. Only new values are added
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json j1 {{"c", 1}, {"b", 2}, {"a", 3}};
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const json j2 {{"c", 77}, {"d", 42}, {"a", 4}};
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j1.insert( j2.cbegin(), j2.cend() );
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CHECK(j1.size() == 4);
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CHECK(j1.dump() == "{\"a\":3,\"b\":2,\"c\":1,\"d\":42}");
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ordered_json oj1 {{"c", 1}, {"b", 2}, {"a", 3}};
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const ordered_json oj2 {{"c", 77}, {"d", 42}, {"a", 4}};
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oj1.insert( oj2.cbegin(), oj2.cend() );
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CHECK(oj1.size() == 4);
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CHECK(oj1.dump() == "{\"c\":1,\"b\":2,\"a\":3,\"d\":42}");
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}
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