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Reorganize directories (#3462)
* 🚚 move files * 🚚 rename doc folder to docs * 🚚 rename test folder to tests
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Niels Lohmann
GitHub
332
tests/src/unit-ordered_map.cpp
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332
tests/src/unit-ordered_map.cpp
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/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 3.10.5
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|_____|_____|_____|_|___| https://github.com/nlohmann/json
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Licensed under the MIT License <http://opensource.org/licenses/MIT>.
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SPDX-License-Identifier: MIT
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Copyright (c) 2013-2022 Niels Lohmann <http://nlohmann.me>.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#include "doctest_compatibility.h"
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#include <nlohmann/json.hpp>
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using nlohmann::ordered_map;
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TEST_CASE("ordered_map")
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{
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SECTION("constructor")
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{
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SECTION("constructor from iterator range")
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{
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std::map<std::string, std::string> m {{"eins", "one"}, {"zwei", "two"}, {"drei", "three"}};
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ordered_map<std::string, std::string> om(m.begin(), m.end());
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CHECK(om.size() == 3);
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}
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SECTION("copy assignment")
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{
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std::map<std::string, std::string> m {{"eins", "one"}, {"zwei", "two"}, {"drei", "three"}};
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ordered_map<std::string, std::string> om(m.begin(), m.end());
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const auto com = om;
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om.clear(); // silence a warning by forbidding having "const auto& com = om;"
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CHECK(com.size() == 3);
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}
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}
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SECTION("at")
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{
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std::map<std::string, std::string> m {{"eins", "one"}, {"zwei", "two"}, {"drei", "three"}};
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ordered_map<std::string, std::string> om(m.begin(), m.end());
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const auto com = om;
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SECTION("with Key&&")
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{
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CHECK(om.at(std::string("eins")) == std::string("one"));
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CHECK(com.at(std::string("eins")) == std::string("one"));
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CHECK_THROWS_AS(om.at(std::string("vier")), std::out_of_range);
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CHECK_THROWS_AS(com.at(std::string("vier")), std::out_of_range);
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}
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SECTION("with const Key&&")
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{
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const std::string eins = "eins";
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const std::string vier = "vier";
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CHECK(om.at(eins) == std::string("one"));
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CHECK(com.at(eins) == std::string("one"));
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CHECK_THROWS_AS(om.at(vier), std::out_of_range);
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CHECK_THROWS_AS(com.at(vier), std::out_of_range);
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}
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SECTION("with string literal")
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{
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CHECK(om.at("eins") == std::string("one"));
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CHECK(com.at("eins") == std::string("one"));
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CHECK_THROWS_AS(om.at("vier"), std::out_of_range);
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CHECK_THROWS_AS(com.at("vier"), std::out_of_range);
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}
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}
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SECTION("operator[]")
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{
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std::map<std::string, std::string> m {{"eins", "one"}, {"zwei", "two"}, {"drei", "three"}};
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ordered_map<std::string, std::string> om(m.begin(), m.end());
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const auto com = om;
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SECTION("with Key&&")
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{
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CHECK(om[std::string("eins")] == std::string("one"));
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CHECK(com[std::string("eins")] == std::string("one"));
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CHECK(om[std::string("vier")] == std::string(""));
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CHECK(om.size() == 4);
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}
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SECTION("with const Key&&")
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{
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const std::string eins = "eins";
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const std::string vier = "vier";
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CHECK(om[eins] == std::string("one"));
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CHECK(com[eins] == std::string("one"));
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CHECK(om[vier] == std::string(""));
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CHECK(om.size() == 4);
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}
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SECTION("with string literal")
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{
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CHECK(om["eins"] == std::string("one"));
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CHECK(com["eins"] == std::string("one"));
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CHECK(om["vier"] == std::string(""));
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CHECK(om.size() == 4);
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}
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}
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SECTION("erase")
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{
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ordered_map<std::string, std::string> om;
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om["eins"] = "one";
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om["zwei"] = "two";
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om["drei"] = "three";
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{
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auto it = om.begin();
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CHECK(it->first == "eins");
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++it;
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CHECK(it->first == "zwei");
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++it;
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CHECK(it->first == "drei");
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++it;
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CHECK(it == om.end());
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}
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SECTION("with Key&&")
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{
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CHECK(om.size() == 3);
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CHECK(om.erase(std::string("eins")) == 1);
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CHECK(om.size() == 2);
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CHECK(om.erase(std::string("vier")) == 0);
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CHECK(om.size() == 2);
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auto it = om.begin();
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CHECK(it->first == "zwei");
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++it;
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CHECK(it->first == "drei");
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++it;
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CHECK(it == om.end());
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}
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SECTION("with const Key&&")
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{
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const std::string eins = "eins";
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const std::string vier = "vier";
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CHECK(om.size() == 3);
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CHECK(om.erase(eins) == 1);
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CHECK(om.size() == 2);
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CHECK(om.erase(vier) == 0);
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CHECK(om.size() == 2);
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auto it = om.begin();
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CHECK(it->first == "zwei");
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++it;
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CHECK(it->first == "drei");
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++it;
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CHECK(it == om.end());
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}
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SECTION("with string literal")
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{
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CHECK(om.size() == 3);
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CHECK(om.erase("eins") == 1);
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CHECK(om.size() == 2);
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CHECK(om.erase("vier") == 0);
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CHECK(om.size() == 2);
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auto it = om.begin();
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CHECK(it->first == "zwei");
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++it;
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CHECK(it->first == "drei");
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++it;
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CHECK(it == om.end());
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}
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SECTION("with iterator")
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{
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CHECK(om.size() == 3);
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CHECK(om.begin()->first == "eins");
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CHECK(std::next(om.begin(), 1)->first == "zwei");
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CHECK(std::next(om.begin(), 2)->first == "drei");
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auto it = om.erase(om.begin());
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CHECK(it->first == "zwei");
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CHECK(om.size() == 2);
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auto it2 = om.begin();
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CHECK(it2->first == "zwei");
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++it2;
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CHECK(it2->first == "drei");
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++it2;
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CHECK(it2 == om.end());
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}
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SECTION("with iterator pair")
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{
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SECTION("range in the middle")
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{
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// need more elements
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om["vier"] = "four";
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om["fünf"] = "five";
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// delete "zwei" and "drei"
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auto it = om.erase(om.begin() + 1, om.begin() + 3);
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CHECK(it->first == "vier");
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CHECK(om.size() == 3);
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}
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SECTION("range at the beginning")
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{
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// need more elements
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om["vier"] = "four";
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om["fünf"] = "five";
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// delete "eins" and "zwei"
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auto it = om.erase(om.begin(), om.begin() + 2);
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CHECK(it->first == "drei");
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CHECK(om.size() == 3);
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}
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SECTION("range at the end")
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{
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// need more elements
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om["vier"] = "four";
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om["fünf"] = "five";
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// delete "vier" and "fünf"
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auto it = om.erase(om.begin() + 3, om.end());
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CHECK(it == om.end());
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CHECK(om.size() == 3);
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}
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}
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}
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SECTION("count")
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{
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ordered_map<std::string, std::string> om;
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om["eins"] = "one";
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om["zwei"] = "two";
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om["drei"] = "three";
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const std::string eins("eins");
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const std::string vier("vier");
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CHECK(om.count("eins") == 1);
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CHECK(om.count(std::string("eins")) == 1);
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CHECK(om.count(eins) == 1);
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CHECK(om.count("vier") == 0);
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CHECK(om.count(std::string("vier")) == 0);
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CHECK(om.count(vier) == 0);
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}
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SECTION("find")
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{
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ordered_map<std::string, std::string> om;
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om["eins"] = "one";
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om["zwei"] = "two";
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om["drei"] = "three";
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const auto com = om;
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const std::string eins("eins");
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const std::string vier("vier");
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CHECK(om.find("eins") == om.begin());
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CHECK(om.find(std::string("eins")) == om.begin());
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CHECK(om.find(eins) == om.begin());
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CHECK(om.find("vier") == om.end());
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CHECK(om.find(std::string("vier")) == om.end());
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CHECK(om.find(vier) == om.end());
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CHECK(com.find("eins") == com.begin());
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CHECK(com.find(std::string("eins")) == com.begin());
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CHECK(com.find(eins) == com.begin());
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CHECK(com.find("vier") == com.end());
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CHECK(com.find(std::string("vier")) == com.end());
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CHECK(com.find(vier) == com.end());
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}
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SECTION("insert")
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{
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ordered_map<std::string, std::string> om;
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om["eins"] = "one";
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om["zwei"] = "two";
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om["drei"] = "three";
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SECTION("const value_type&")
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{
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ordered_map<std::string, std::string>::value_type vt1 {"eins", "1"};
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ordered_map<std::string, std::string>::value_type vt4 {"vier", "four"};
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auto res1 = om.insert(vt1);
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CHECK(res1.first == om.begin());
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CHECK(res1.second == false);
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CHECK(om.size() == 3);
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auto res4 = om.insert(vt4);
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CHECK(res4.first == om.begin() + 3);
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CHECK(res4.second == true);
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CHECK(om.size() == 4);
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}
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SECTION("value_type&&")
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{
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auto res1 = om.insert({"eins", "1"});
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CHECK(res1.first == om.begin());
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CHECK(res1.second == false);
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CHECK(om.size() == 3);
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auto res4 = om.insert({"vier", "four"});
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CHECK(res4.first == om.begin() + 3);
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CHECK(res4.second == true);
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CHECK(om.size() == 4);
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}
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}
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}
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