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665 lines
21 KiB
C++
665 lines
21 KiB
C++
/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 3.10.0
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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) 2013-2019 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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// for some reason including this after the json header leads to linker errors with VS 2017...
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#include <locale>
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#define JSON_TESTS_PRIVATE
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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#include <list>
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#include <cstdio>
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#include <type_traits>
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#include <utility>
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#if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
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#define JSON_HAS_CPP_17
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#endif
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#ifdef JSON_HAS_CPP_17
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#include <variant>
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#endif
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#ifdef JSON_HAS_CPP_20
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#include <span>
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#endif
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// NLOHMANN_JSON_SERIALIZE_ENUM uses a static std::pair
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DOCTEST_CLANG_SUPPRESS_WARNING_PUSH
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DOCTEST_CLANG_SUPPRESS_WARNING("-Wexit-time-destructors")
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/////////////////////////////////////////////////////////////////////
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// for #1021
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/////////////////////////////////////////////////////////////////////
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using float_json = nlohmann::basic_json<std::map, std::vector, std::string, bool, std::int64_t, std::uint64_t, float>;
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/////////////////////////////////////////////////////////////////////
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// for #1647
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/////////////////////////////////////////////////////////////////////
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namespace
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{
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struct NonDefaultFromJsonStruct { };
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inline bool operator== (NonDefaultFromJsonStruct const& /*unused*/, NonDefaultFromJsonStruct const& /*unused*/)
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{
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return true;
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}
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enum class for_1647 { one, two };
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// NOLINTNEXTLINE(cppcoreguidelines-avoid-c-arrays,hicpp-avoid-c-arrays,modernize-avoid-c-arrays): this is a false positive
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NLOHMANN_JSON_SERIALIZE_ENUM(for_1647,
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{
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{for_1647::one, "one"},
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{for_1647::two, "two"},
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})
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} // namespace
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/////////////////////////////////////////////////////////////////////
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// for #1299
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/////////////////////////////////////////////////////////////////////
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struct Data
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{
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Data() = default;
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Data(std::string a_, std::string b_) : a(std::move(a_)), b(std::move(b_)) {}
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std::string a {};
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std::string b {};
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};
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void from_json(const json& j, Data& data);
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void from_json(const json& j, Data& data)
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{
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j["a"].get_to(data.a);
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j["b"].get_to(data.b);
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}
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bool operator==(Data const& lhs, Data const& rhs);
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bool operator==(Data const& lhs, Data const& rhs)
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{
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return lhs.a == rhs.a && lhs.b == rhs.b;
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}
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//bool operator!=(Data const& lhs, Data const& rhs)
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//{
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// return !(lhs == rhs);
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//}
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namespace nlohmann
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{
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template <>
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struct adl_serializer<NonDefaultFromJsonStruct>
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{
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static NonDefaultFromJsonStruct from_json (json const& /*unused*/) noexcept
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{
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return {};
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}
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};
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} // namespace nlohmann
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/////////////////////////////////////////////////////////////////////
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// for #1805
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/////////////////////////////////////////////////////////////////////
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struct NotSerializableData
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{
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int mydata;
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float myfloat;
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};
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/////////////////////////////////////////////////////////////////////
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// for #2574
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/////////////////////////////////////////////////////////////////////
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struct NonDefaultConstructible
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{
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explicit NonDefaultConstructible (int a) : x(a) { }
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int x;
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};
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namespace nlohmann
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{
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template <>
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struct adl_serializer<NonDefaultConstructible>
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{
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static NonDefaultConstructible from_json (json const& j)
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{
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return NonDefaultConstructible(j.get<int>());
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}
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};
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} // namespace nlohmann
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/////////////////////////////////////////////////////////////////////
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// for #2824
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/////////////////////////////////////////////////////////////////////
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class sax_no_exception : public nlohmann::detail::json_sax_dom_parser<json>
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{
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public:
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explicit sax_no_exception(json& j) : nlohmann::detail::json_sax_dom_parser<json>(j, false) {}
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static bool parse_error(std::size_t /*position*/, const std::string& /*last_token*/, const json::exception& ex)
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{
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error_string = new std::string(ex.what()); // NOLINT(cppcoreguidelines-owning-memory)
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return false;
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}
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static std::string* error_string;
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};
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std::string* sax_no_exception::error_string = nullptr;
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TEST_CASE("regression tests 2")
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{
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SECTION("issue #1001 - Fix memory leak during parser callback")
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{
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const auto* geojsonExample = R"(
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{ "type": "FeatureCollection",
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"features": [
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{ "type": "Feature",
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"geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
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"properties": {"prop0": "value0"}
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},
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{ "type": "Feature",
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"geometry": {
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"type": "LineString",
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"coordinates": [
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[102.0, 0.0], [103.0, 1.0], [104.0, 0.0], [105.0, 1.0]
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]
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},
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"properties": {
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"prop0": "value0",
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"prop1": 0.0
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}
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},
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{ "type": "Feature",
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"geometry": {
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"type": "Polygon",
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"coordinates": [
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[ [100.0, 0.0], [101.0, 0.0], [101.0, 1.0],
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[100.0, 1.0], [100.0, 0.0] ]
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]
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},
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"properties": {
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"prop0": "value0",
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"prop1": {"this": "that"}
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}
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}
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]
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})";
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json::parser_callback_t cb = [&](int /*level*/, json::parse_event_t event, json & parsed)
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{
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// skip uninteresting events
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if (event == json::parse_event_t::value && !parsed.is_primitive())
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{
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return false;
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}
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switch (event)
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{
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case json::parse_event_t::key:
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{
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return true;
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}
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case json::parse_event_t::value:
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{
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return false;
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}
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case json::parse_event_t::object_start:
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{
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return true;
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}
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case json::parse_event_t::object_end:
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{
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return false;
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}
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case json::parse_event_t::array_start:
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{
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return true;
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}
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case json::parse_event_t::array_end:
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{
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return false;
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}
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default:
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{
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return true;
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}
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}
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};
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auto j = json::parse(geojsonExample, cb, true);
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CHECK(j == json());
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}
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SECTION("issue #1021 - to/from_msgpack only works with standard typization")
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{
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float_json j = 1000.0;
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CHECK(float_json::from_cbor(float_json::to_cbor(j)) == j);
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CHECK(float_json::from_msgpack(float_json::to_msgpack(j)) == j);
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CHECK(float_json::from_ubjson(float_json::to_ubjson(j)) == j);
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float_json j2 = {1000.0, 2000.0, 3000.0};
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CHECK(float_json::from_ubjson(float_json::to_ubjson(j2, true, true)) == j2);
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}
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SECTION("issue #1045 - Using STL algorithms with JSON containers with expected results?")
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{
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json diffs = nlohmann::json::array();
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json m1{{"key1", 42}};
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json m2{{"key2", 42}};
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auto p1 = m1.items();
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auto p2 = m2.items();
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using it_type = decltype(p1.begin());
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std::set_difference(
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p1.begin(), p1.end(),
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p2.begin(), p2.end(),
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std::inserter(diffs, diffs.end()), [&](const it_type & e1, const it_type & e2) -> bool
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{
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using comper_pair = std::pair<std::string, decltype(e1.value())>; // Trying to avoid unneeded copy
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return comper_pair(e1.key(), e1.value()) < comper_pair(e2.key(), e2.value()); // Using pair comper
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});
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CHECK(diffs.size() == 1); // Note the change here, was 2
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}
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#ifdef JSON_HAS_CPP_17
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SECTION("issue #1292 - Serializing std::variant causes stack overflow")
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{
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static_assert(
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!std::is_constructible<json, std::variant<int, float>>::value, "");
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}
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#endif
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SECTION("issue #1299 - compile error in from_json converting to container "
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"with std::pair")
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{
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json j =
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{
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{"1", {{"a", "testa_1"}, {"b", "testb_1"}}},
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{"2", {{"a", "testa_2"}, {"b", "testb_2"}}},
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{"3", {{"a", "testa_3"}, {"b", "testb_3"}}},
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};
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std::map<std::string, Data> expected
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{
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{"1", {"testa_1", "testb_1"}},
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{"2", {"testa_2", "testb_2"}},
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{"3", {"testa_3", "testb_3"}},
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};
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const auto data = j.get<decltype(expected)>();
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CHECK(expected == data);
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}
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SECTION("issue #1445 - buffer overflow in dumping invalid utf-8 strings")
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{
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SECTION("a bunch of -1, ensure_ascii=true")
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{
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const auto length = 300;
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json dump_test;
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dump_test["1"] = std::string(length, -1);
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std::string expected = R"({"1":")";
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for (int i = 0; i < length; ++i)
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{
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expected += "\\ufffd";
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}
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expected += "\"}";
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auto s = dump_test.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace);
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CHECK(s == expected);
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}
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SECTION("a bunch of -2, ensure_ascii=false")
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{
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const auto length = 500;
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json dump_test;
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dump_test["1"] = std::string(length, -2);
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std::string expected = R"({"1":")";
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for (int i = 0; i < length; ++i)
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{
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expected += "\xEF\xBF\xBD";
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}
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expected += "\"}";
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auto s = dump_test.dump(-1, ' ', false, nlohmann::json::error_handler_t::replace);
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CHECK(s == expected);
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}
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SECTION("test case in issue #1445")
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{
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nlohmann::json dump_test;
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const std::array<int, 108> data =
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{
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{
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109, 108, 103, 125, -122, -53, 115,
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18, 3, 0, 102, 19, 1, 15,
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-110, 13, -3, -1, -81, 32, 2,
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0, 0, 0, 0, 0, 0, 0,
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8, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, -80, 2,
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0, 0, 96, -118, 46, -116, 46,
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109, -84, -87, 108, 14, 109, -24,
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-83, 13, -18, -51, -83, -52, -115,
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14, 6, 32, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0,
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64, 3, 0, 0, 0, 35, -74,
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-73, 55, 57, -128, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0,
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0, 0, 33, 0, 0, 0, -96,
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-54, -28, -26
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}
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};
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std::string s;
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for (int i : data)
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{
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s += static_cast<char>(i);
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}
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dump_test["1"] = s;
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dump_test.dump(-1, ' ', true, nlohmann::json::error_handler_t::replace);
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}
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}
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SECTION("issue #1447 - Integer Overflow (OSS-Fuzz 12506)")
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{
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json j = json::parse("[-9223372036854775808]");
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CHECK(j.dump() == "[-9223372036854775808]");
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}
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SECTION("issue #1708 - minimum value of int64_t can be outputted")
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{
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constexpr auto smallest = (std::numeric_limits<int64_t>::min)();
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json j = smallest;
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CHECK(j.dump() == std::to_string(smallest));
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}
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SECTION("issue #1727 - Contains with non-const lvalue json_pointer picks the wrong overload")
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{
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json j = {{"root", {{"settings", {{"logging", true}}}}}};
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auto jptr1 = "/root/settings/logging"_json_pointer;
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auto jptr2 = json::json_pointer{"/root/settings/logging"};
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CHECK(j.contains(jptr1));
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CHECK(j.contains(jptr2));
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}
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SECTION("issue #1647 - compile error when deserializing enum if both non-default from_json and non-member operator== exists for other type")
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{
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{
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json j;
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NonDefaultFromJsonStruct x(j);
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NonDefaultFromJsonStruct y;
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CHECK(x == y);
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}
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auto val = nlohmann::json("one").get<for_1647>();
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CHECK(val == for_1647::one);
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json j = val;
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}
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SECTION("issue #1715 - json::from_cbor does not respect allow_exceptions = false when input is string literal")
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{
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SECTION("string literal")
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{
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json cbor = json::from_cbor("B", true, false);
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CHECK(cbor.is_discarded());
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}
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SECTION("string array")
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{
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const std::array<char, 2> input = {{ 'B', 0x00 }};
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json cbor = json::from_cbor(input, true, false);
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CHECK(cbor.is_discarded());
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}
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SECTION("std::string")
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{
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json cbor = json::from_cbor(std::string("B"), true, false);
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CHECK(cbor.is_discarded());
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}
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}
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SECTION("issue #1805 - A pair<T1, T2> is json constructible only if T1 and T2 are json constructible")
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{
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static_assert(!std::is_constructible<json, std::pair<std::string, NotSerializableData>>::value, "");
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static_assert(!std::is_constructible<json, std::pair<NotSerializableData, std::string>>::value, "");
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static_assert(std::is_constructible<json, std::pair<int, std::string>>::value, "");
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}
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SECTION("issue #1825 - A tuple<Args..> is json constructible only if all T in Args are json constructible")
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{
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static_assert(!std::is_constructible<json, std::tuple<std::string, NotSerializableData>>::value, "");
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static_assert(!std::is_constructible<json, std::tuple<NotSerializableData, std::string>>::value, "");
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static_assert(std::is_constructible<json, std::tuple<int, std::string>>::value, "");
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}
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SECTION("issue #1983 - JSON patch diff for op=add formation is not as per standard (RFC 6902)")
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{
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const auto source = R"({ "foo": [ "1", "2" ] })"_json;
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const auto target = R"({"foo": [ "1", "2", "3" ]})"_json;
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const auto result = json::diff(source, target);
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CHECK(result.dump() == R"([{"op":"add","path":"/foo/-","value":"3"}])");
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}
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SECTION("issue #2067 - cannot serialize binary data to text JSON")
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{
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const std::array<unsigned char, 23> data = {{0x81, 0xA4, 0x64, 0x61, 0x74, 0x61, 0xC4, 0x0F, 0x33, 0x30, 0x30, 0x32, 0x33, 0x34, 0x30, 0x31, 0x30, 0x37, 0x30, 0x35, 0x30, 0x31, 0x30}};
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json j = json::from_msgpack(data.data(), data.size());
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CHECK_NOTHROW(
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j.dump(4, // Indent
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' ', // Indent char
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false, // Ensure ascii
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json::error_handler_t::strict // Error
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)
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);
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}
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SECTION("PR #2181 - regression bug with lvalue")
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{
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// see https://github.com/nlohmann/json/pull/2181#issuecomment-653326060
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json j{{"x", "test"}};
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std::string defval = "default value";
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auto val = j.value("x", defval);
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auto val2 = j.value("y", defval);
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}
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SECTION("issue #2293 - eof doesnt cause parsing to stop")
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{
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std::vector<uint8_t> data =
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{
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0x7B, 0x6F, 0x62, 0x6A, 0x65, 0x63, 0x74, 0x20, 0x4F, 0x42
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};
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json result = json::from_cbor(data, true, false);
|
|
CHECK(result.is_discarded());
|
|
}
|
|
|
|
SECTION("issue #2315 - json.update and vector<pair>does not work with ordered_json")
|
|
{
|
|
nlohmann::ordered_json jsonAnimals = {{"animal", "dog"}};
|
|
nlohmann::ordered_json jsonCat = {{"animal", "cat"}};
|
|
jsonAnimals.update(jsonCat);
|
|
CHECK(jsonAnimals["animal"] == "cat");
|
|
|
|
auto jsonAnimals_parsed = nlohmann::ordered_json::parse(jsonAnimals.dump());
|
|
CHECK(jsonAnimals == jsonAnimals_parsed);
|
|
|
|
std::vector<std::pair<std::string, int64_t>> intData = {std::make_pair("aaaa", 11),
|
|
std::make_pair("bbb", 222)
|
|
};
|
|
nlohmann::ordered_json jsonObj;
|
|
for (const auto& data : intData)
|
|
{
|
|
jsonObj[data.first] = data.second;
|
|
}
|
|
CHECK(jsonObj["aaaa"] == 11);
|
|
CHECK(jsonObj["bbb"] == 222);
|
|
}
|
|
|
|
SECTION("issue #2330 - ignore_comment=true fails on multiple consecutive lines starting with comments")
|
|
{
|
|
std::string ss = "//\n//\n{\n}\n";
|
|
json j = json::parse(ss, nullptr, true, true);
|
|
CHECK(j.dump() == "{}");
|
|
}
|
|
|
|
#ifdef JSON_HAS_CPP_20
|
|
SECTION("issue #2546 - parsing containers of std::byte")
|
|
{
|
|
const char DATA[] = R"("Hello, world!")";
|
|
const auto s = std::as_bytes(std::span(DATA));
|
|
json j = json::parse(s);
|
|
CHECK(j.dump() == "\"Hello, world!\"");
|
|
}
|
|
#endif
|
|
|
|
SECTION("issue #2574 - Deserialization to std::array, std::pair, and std::tuple with non-default constructable types fails")
|
|
{
|
|
SECTION("std::array")
|
|
{
|
|
{
|
|
json j = { 7, 4 };
|
|
auto arr = j.get<std::array<NonDefaultConstructible, 2>>();
|
|
CHECK(arr[0].x == 7);
|
|
CHECK(arr[1].x == 4);
|
|
|
|
}
|
|
|
|
{
|
|
json j = 7;
|
|
CHECK_THROWS_AS((j.get<std::array<NonDefaultConstructible, 1>>()), json::type_error);
|
|
}
|
|
}
|
|
|
|
SECTION("std::pair")
|
|
{
|
|
{
|
|
json j = { 3, 8 };
|
|
auto p = j.get<std::pair<NonDefaultConstructible, NonDefaultConstructible>>();
|
|
CHECK(p.first.x == 3);
|
|
CHECK(p.second.x == 8);
|
|
}
|
|
|
|
{
|
|
json j = { 4, 1 };
|
|
auto p = j.get<std::pair<int, NonDefaultConstructible>>();
|
|
CHECK(p.first == 4);
|
|
CHECK(p.second.x == 1);
|
|
}
|
|
|
|
{
|
|
json j = { 6, 7 };
|
|
auto p = j.get<std::pair<NonDefaultConstructible, int>>();
|
|
CHECK(p.first.x == 6);
|
|
CHECK(p.second == 7);
|
|
}
|
|
|
|
{
|
|
json j = 7;
|
|
CHECK_THROWS_AS((j.get<std::pair<NonDefaultConstructible, int>>()), json::type_error);
|
|
}
|
|
}
|
|
|
|
SECTION("std::tuple")
|
|
{
|
|
{
|
|
json j = { 9 };
|
|
auto t = j.get<std::tuple<NonDefaultConstructible>>();
|
|
CHECK(std::get<0>(t).x == 9);
|
|
}
|
|
|
|
{
|
|
json j = { 9, 8, 7 };
|
|
auto t = j.get<std::tuple<NonDefaultConstructible, int, NonDefaultConstructible>>();
|
|
CHECK(std::get<0>(t).x == 9);
|
|
CHECK(std::get<1>(t) == 8);
|
|
CHECK(std::get<2>(t).x == 7);
|
|
}
|
|
|
|
{
|
|
json j = 7;
|
|
CHECK_THROWS_AS((j.get<std::tuple<NonDefaultConstructible>>()), json::type_error);
|
|
}
|
|
}
|
|
}
|
|
|
|
SECTION("issue #2865 - ASAN detects memory leaks")
|
|
{
|
|
// the code below is expected to not leak memory
|
|
{
|
|
nlohmann::json o;
|
|
std::string s = "bar";
|
|
|
|
nlohmann::to_json(o["foo"], s);
|
|
|
|
nlohmann::json p = o;
|
|
|
|
// call to_json with a non-null JSON value
|
|
nlohmann::to_json(p["foo"], s);
|
|
}
|
|
|
|
{
|
|
nlohmann::json o;
|
|
std::string s = "bar";
|
|
|
|
nlohmann::to_json(o["foo"], s);
|
|
|
|
// call to_json with a non-null JSON value
|
|
nlohmann::to_json(o["foo"], s);
|
|
}
|
|
}
|
|
|
|
SECTION("issue #2824 - encoding of json::exception::what()")
|
|
{
|
|
json j;
|
|
sax_no_exception sax(j);
|
|
|
|
CHECK (!json::sax_parse("xyz", &sax));
|
|
CHECK(*sax_no_exception::error_string == "[json.exception.parse_error.101] parse error at line 1, column 1: syntax error while parsing value - invalid literal; last read: 'x'");
|
|
delete sax_no_exception::error_string; // NOLINT(cppcoreguidelines-owning-memory)
|
|
}
|
|
|
|
SECTION("issue #2825 - Properly constrain the basic_json conversion operator")
|
|
{
|
|
static_assert(std::is_copy_assignable<nlohmann::ordered_json>::value, "");
|
|
}
|
|
}
|
|
|
|
DOCTEST_CLANG_SUPPRESS_WARNING_POP
|