0258484626
- updated documentation wrt. new repository layout - temporarily switched off Homebrew --HEAD building (can only be switched on after release) - set copyright date to 2018
538 lines
21 KiB
C++
538 lines
21 KiB
C++
/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 3.1.0
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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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Copyright (c) 2013-2018 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 "catch.hpp"
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#include <nlohmann/json.hpp>
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using nlohmann::json;
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#include <iostream>
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#include <valarray>
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TEST_CASE("deserialization")
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{
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SECTION("successful deserialization")
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{
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SECTION("stream")
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{
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std::stringstream ss1, ss2;
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ss1 << "[\"foo\",1,2,3,false,{\"one\":1}]";
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ss2 << "[\"foo\",1,2,3,false,{\"one\":1}]";
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json j = json::parse(ss1);
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CHECK(json::accept(ss2));
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CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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SECTION("string literal")
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{
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auto s = "[\"foo\",1,2,3,false,{\"one\":1}]";
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json j = json::parse(s);
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CHECK(json::accept(s));
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CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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SECTION("string_t")
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{
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json::string_t s = "[\"foo\",1,2,3,false,{\"one\":1}]";
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json j = json::parse(s);
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CHECK(json::accept(s));
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CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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SECTION("operator<<")
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{
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std::stringstream ss;
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ss << "[\"foo\",1,2,3,false,{\"one\":1}]";
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json j;
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j << ss;
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CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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SECTION("operator>>")
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{
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std::stringstream ss;
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ss << "[\"foo\",1,2,3,false,{\"one\":1}]";
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json j;
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ss >> j;
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CHECK(j == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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SECTION("user-defined string literal")
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{
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CHECK("[\"foo\",1,2,3,false,{\"one\":1}]"_json == json({"foo", 1, 2, 3, false, {{"one", 1}}}));
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}
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}
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SECTION("unsuccessful deserialization")
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{
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SECTION("stream")
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{
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std::stringstream ss1, ss2, ss3, ss4;
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ss1 << "[\"foo\",1,2,3,false,{\"one\":1}";
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ss2 << "[\"foo\",1,2,3,false,{\"one\":1}";
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ss3 << "[\"foo\",1,2,3,false,{\"one\":1}";
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ss4 << "[\"foo\",1,2,3,false,{\"one\":1}";
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CHECK_THROWS_AS(json::parse(ss1), json::parse_error&);
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CHECK_THROWS_WITH(json::parse(ss2),
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"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
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CHECK(not json::accept(ss3));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(ss1, nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("string")
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{
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json::string_t s = "[\"foo\",1,2,3,false,{\"one\":1}";
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CHECK_THROWS_AS(json::parse(s), json::parse_error&);
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CHECK_THROWS_WITH(json::parse(s),
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"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
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CHECK(not json::accept(s));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(s, nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("operator<<")
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{
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std::stringstream ss1, ss2;
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ss1 << "[\"foo\",1,2,3,false,{\"one\":1}";
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ss2 << "[\"foo\",1,2,3,false,{\"one\":1}";
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json j;
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CHECK_THROWS_AS(j << ss1, json::parse_error&);
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CHECK_THROWS_WITH(j << ss2,
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"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
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}
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SECTION("operator>>")
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{
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std::stringstream ss1, ss2;
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ss1 << "[\"foo\",1,2,3,false,{\"one\":1}";
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ss2 << "[\"foo\",1,2,3,false,{\"one\":1}";
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json j;
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CHECK_THROWS_AS(ss1 >> j, json::parse_error&);
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CHECK_THROWS_WITH(ss2 >> j,
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"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
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}
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SECTION("user-defined string literal")
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{
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CHECK_THROWS_AS("[\"foo\",1,2,3,false,{\"one\":1}"_json, json::parse_error&);
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CHECK_THROWS_WITH("[\"foo\",1,2,3,false,{\"one\":1}"_json,
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"[json.exception.parse_error.101] parse error at 29: syntax error - unexpected end of input; expected ']'");
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}
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}
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SECTION("contiguous containers")
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{
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SECTION("directly")
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{
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SECTION("from std::vector")
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{
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std::vector<uint8_t> v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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}
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SECTION("from std::array")
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{
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std::array<uint8_t, 5> v { {'t', 'r', 'u', 'e'} };
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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}
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SECTION("from array")
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{
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uint8_t v[] = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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}
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SECTION("from chars")
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{
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uint8_t* v = new uint8_t[5];
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v[0] = 't';
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v[1] = 'r';
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v[2] = 'u';
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v[3] = 'e';
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v[4] = '\0';
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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delete[] v;
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}
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SECTION("from std::string")
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{
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std::string v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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}
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SECTION("from std::initializer_list")
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{
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std::initializer_list<uint8_t> v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(v) == json(true));
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CHECK(json::accept(v));
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}
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SECTION("empty container")
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{
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std::vector<uint8_t> v;
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CHECK_THROWS_AS(json::parse(v), json::parse_error&);
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CHECK(not json::accept(v));
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}
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}
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SECTION("via iterator range")
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{
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SECTION("from std::vector")
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{
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std::vector<uint8_t> v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("from std::array")
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{
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std::array<uint8_t, 5> v { {'t', 'r', 'u', 'e'} };
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("from array")
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{
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uint8_t v[] = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("from std::string")
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{
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std::string v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("from std::initializer_list")
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{
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std::initializer_list<uint8_t> v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("from std::valarray")
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{
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std::valarray<uint8_t> v = {'t', 'r', 'u', 'e'};
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CHECK(json::parse(std::begin(v), std::end(v)) == json(true));
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CHECK(json::accept(std::begin(v), std::end(v)));
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}
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SECTION("with empty range")
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{
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std::vector<uint8_t> v;
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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}
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}
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// these cases are required for 100% line coverage
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SECTION("error cases")
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{
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SECTION("case 1")
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{
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uint8_t v[] = {'\"', 'a', 'a', 'a', 'a', 'a', 'a', '\\', 'u'};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 2")
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{
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uint8_t v[] = {'\"', 'a', 'a', 'a', 'a', 'a', 'a', '\\', 'u', '1'};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 3")
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{
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uint8_t v[] = {'\"', 'a', 'a', 'a', 'a', 'a', 'a', '\\', 'u', '1', '1', '1', '1', '1', '1', '1', '1'};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 4")
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{
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uint8_t v[] = {'\"', 'a', 'a', 'a', 'a', 'a', 'a', 'u', '1', '1', '1', '1', '1', '1', '1', '1', '\\'};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 5")
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{
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uint8_t v[] = {'\"', 0x7F, 0xC1};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 6")
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{
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uint8_t v[] = {'\"', 0x7F, 0xDF, 0x7F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK_THROWS_WITH(json::parse(std::begin(v), std::end(v)),
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"[json.exception.parse_error.101] parse error at 4: syntax error - invalid string: ill-formed UTF-8 byte; last read: '\"\x7f\xdf\x7f'");
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 7")
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{
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uint8_t v[] = {'\"', 0x7F, 0xDF, 0xC0};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 8")
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{
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uint8_t v[] = {'\"', 0x7F, 0xE0, 0x9F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 9")
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{
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uint8_t v[] = {'\"', 0x7F, 0xEF, 0xC0};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 10")
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{
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uint8_t v[] = {'\"', 0x7F, 0xED, 0x7F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 11")
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{
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uint8_t v[] = {'\"', 0x7F, 0xF0, 0x8F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 12")
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{
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uint8_t v[] = {'\"', 0x7F, 0xF0, 0xC0};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 13")
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{
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uint8_t v[] = {'\"', 0x7F, 0xF3, 0x7F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 14")
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{
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uint8_t v[] = {'\"', 0x7F, 0xF3, 0xC0};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 15")
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{
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uint8_t v[] = {'\"', 0x7F, 0xF4, 0x7F};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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}
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SECTION("case 16")
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{
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uint8_t v[] = {'{', '\"', '\"', ':', '1', '1'};
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CHECK_THROWS_AS(json::parse(std::begin(v), std::end(v)), json::parse_error&);
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CHECK(not json::accept(std::begin(v), std::end(v)));
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json j_error;
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CHECK_NOTHROW(j_error = json::parse(std::begin(v), std::end(v), nullptr, false));
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CHECK(j_error.is_discarded());
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|
}
|
|
}
|
|
}
|
|
|
|
SECTION("ignoring byte-order marks")
|
|
{
|
|
std::string bom = "\xEF\xBB\xBF";
|
|
|
|
SECTION("BOM only")
|
|
{
|
|
CHECK_THROWS_AS(json::parse(bom), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(bom),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
|
|
CHECK_THROWS_AS(json::parse(std::istringstream(bom)), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
}
|
|
|
|
SECTION("BOM and content")
|
|
{
|
|
CHECK(json::parse(bom + "1") == 1);
|
|
CHECK(json::parse(std::istringstream(bom + "1")) == 1);
|
|
}
|
|
|
|
SECTION("2 byte of BOM")
|
|
{
|
|
CHECK_THROWS_AS(json::parse(bom.substr(0, 2)), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(bom),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
|
|
CHECK_THROWS_AS(json::parse(std::istringstream(bom.substr(0, 2))), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
}
|
|
|
|
SECTION("1 byte of BOM")
|
|
{
|
|
CHECK_THROWS_AS(json::parse(bom.substr(0, 1)), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(bom),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
|
|
CHECK_THROWS_AS(json::parse(std::istringstream(bom.substr(0, 1))), json::parse_error&);
|
|
CHECK_THROWS_WITH(json::parse(std::istringstream(bom)),
|
|
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected end of input; expected '[', '{', or a literal");
|
|
}
|
|
|
|
SECTION("variations")
|
|
{
|
|
// calculate variations of each byte of the BOM to make sure
|
|
// that the BOM and only the BOM is skipped
|
|
for (int i0 = -1; i0 < 2; ++i0)
|
|
{
|
|
for (int i1 = -1; i1 < 2; ++i1)
|
|
{
|
|
for (int i2 = -1; i2 < 2; ++i2)
|
|
{
|
|
// debug output for the variations
|
|
CAPTURE(i0);
|
|
CAPTURE(i1);
|
|
CAPTURE(i2);
|
|
|
|
std::string s = "";
|
|
s.push_back(static_cast<char>(bom[0] + i0));
|
|
s.push_back(static_cast<char>(bom[1] + i1));
|
|
s.push_back(static_cast<char>(bom[2] + i2));
|
|
|
|
if (i0 == 0 and i1 == 0 and i2 == 0)
|
|
{
|
|
// without any variation, we skip the BOM
|
|
CHECK(json::parse(s + "null") == json());
|
|
CHECK(json::parse(std::istringstream(s + "null")) == json());
|
|
}
|
|
else
|
|
{
|
|
// any variation is an error
|
|
CHECK_THROWS_AS(json::parse(s + "null"), json::parse_error&);
|
|
CHECK_THROWS_AS(json::parse(std::istringstream(s + "null")), json::parse_error&);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
SECTION("preserve state after parsing")
|
|
{
|
|
std::istringstream s(bom + "123 456");
|
|
json j;
|
|
j << s;
|
|
CHECK(j == 123);
|
|
j << s;
|
|
CHECK(j == 456);
|
|
}
|
|
}
|
|
}
|