1 /* 2 __ _____ _____ _____ 3 __| | __| | | | JSON for Modern C++ (test suite) 4 | | |__ | | | | | | version 3.10.0 5 |_____|_____|_____|_|___| https://github.com/nlohmann/json 6 7 Licensed under the MIT License <http://opensource.org/licenses/MIT>. 8 SPDX-License-Identifier: MIT 9 Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>. 10 11 Permission is hereby granted, free of charge, to any person obtaining a copy 12 of this software and associated documentation files (the "Software"), to deal 13 in the Software without restriction, including without limitation the rights 14 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 15 copies of the Software, and to permit persons to whom the Software is 16 furnished to do so, subject to the following conditions: 17 18 The above copyright notice and this permission notice shall be included in all 19 copies or substantial portions of the Software. 20 21 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 22 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 24 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 25 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 26 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 27 SOFTWARE. 28 */ 29 30 #include "doctest_compatibility.h" 31 32 #include <nlohmann/json.hpp> 33 using nlohmann::json; 34 35 #include <sstream> 36 #include <iomanip> 37 38 TEST_CASE("serialization") 39 { 40 SECTION("operator<<") 41 { 42 SECTION("no given width") 43 { 44 std::stringstream ss; 45 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 46 ss << j; 47 CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]"); 48 } 49 50 SECTION("given width") 51 { 52 std::stringstream ss; 53 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 54 ss << std::setw(4) << j; 55 CHECK(ss.str() == 56 "[\n \"foo\",\n 1,\n 2,\n 3,\n false,\n {\n \"one\": 1\n }\n]"); 57 } 58 59 SECTION("given fill") 60 { 61 std::stringstream ss; 62 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 63 ss << std::setw(1) << std::setfill('\t') << j; 64 CHECK(ss.str() == 65 "[\n\t\"foo\",\n\t1,\n\t2,\n\t3,\n\tfalse,\n\t{\n\t\t\"one\": 1\n\t}\n]"); 66 } 67 } 68 69 SECTION("operator>>") 70 { 71 SECTION("no given width") 72 { 73 std::stringstream ss; 74 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 75 j >> ss; 76 CHECK(ss.str() == "[\"foo\",1,2,3,false,{\"one\":1}]"); 77 } 78 79 SECTION("given width") 80 { 81 std::stringstream ss; 82 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 83 ss.width(4); 84 j >> ss; 85 CHECK(ss.str() == 86 "[\n \"foo\",\n 1,\n 2,\n 3,\n false,\n {\n \"one\": 1\n }\n]"); 87 } 88 89 SECTION("given fill") 90 { 91 std::stringstream ss; 92 json j = {"foo", 1, 2, 3, false, {{"one", 1}}}; 93 ss.width(1); 94 ss.fill('\t'); 95 j >> ss; 96 CHECK(ss.str() == 97 "[\n\t\"foo\",\n\t1,\n\t2,\n\t3,\n\tfalse,\n\t{\n\t\t\"one\": 1\n\t}\n]"); 98 } 99 } 100 101 SECTION("dump") 102 { 103 SECTION("invalid character") 104 { 105 json j = "ä\xA9ü"; 106 107 CHECK_THROWS_AS(j.dump(), json::type_error&); 108 CHECK_THROWS_WITH(j.dump(), "[json.exception.type_error.316] invalid UTF-8 byte at index 2: 0xA9"); 109 CHECK_THROWS_AS(j.dump(1, ' ', false, json::error_handler_t::strict), json::type_error&); 110 CHECK_THROWS_WITH(j.dump(1, ' ', false, json::error_handler_t::strict), "[json.exception.type_error.316] invalid UTF-8 byte at index 2: 0xA9"); 111 CHECK(j.dump(-1, ' ', false, json::error_handler_t::ignore) == "\"äü\""); 112 CHECK(j.dump(-1, ' ', false, json::error_handler_t::replace) == "\"ä\xEF\xBF\xBDü\""); 113 CHECK(j.dump(-1, ' ', true, json::error_handler_t::replace) == "\"\\u00e4\\ufffd\\u00fc\""); 114 } 115 116 SECTION("ending with incomplete character") 117 { 118 json j = "123\xC2"; 119 120 CHECK_THROWS_AS(j.dump(), json::type_error&); 121 CHECK_THROWS_WITH(j.dump(), "[json.exception.type_error.316] incomplete UTF-8 string; last byte: 0xC2"); 122 CHECK_THROWS_AS(j.dump(1, ' ', false, json::error_handler_t::strict), json::type_error&); 123 CHECK(j.dump(-1, ' ', false, json::error_handler_t::ignore) == "\"123\""); 124 CHECK(j.dump(-1, ' ', false, json::error_handler_t::replace) == "\"123\xEF\xBF\xBD\""); 125 CHECK(j.dump(-1, ' ', true, json::error_handler_t::replace) == "\"123\\ufffd\""); 126 } 127 128 SECTION("unexpected character") 129 { 130 json j = "123\xF1\xB0\x34\x35\x36"; 131 132 CHECK_THROWS_AS(j.dump(), json::type_error&); 133 CHECK_THROWS_WITH(j.dump(), "[json.exception.type_error.316] invalid UTF-8 byte at index 5: 0x34"); 134 CHECK_THROWS_AS(j.dump(1, ' ', false, json::error_handler_t::strict), json::type_error&); 135 CHECK(j.dump(-1, ' ', false, json::error_handler_t::ignore) == "\"123456\""); 136 CHECK(j.dump(-1, ' ', false, json::error_handler_t::replace) == "\"123\xEF\xBF\xBD\x34\x35\x36\""); 137 CHECK(j.dump(-1, ' ', true, json::error_handler_t::replace) == "\"123\\ufffd456\""); 138 } 139 140 SECTION("U+FFFD Substitution of Maximal Subparts") 141 { 142 // Some tests (mostly) from 143 // https://www.unicode.org/versions/Unicode11.0.0/ch03.pdf 144 // Section 3.9 -- U+FFFD Substitution of Maximal Subparts 145 146 auto test = [&](std::string const & input, std::string const & expected) __anon4e96612c0102(std::string const & input, std::string const & expected) 147 { 148 json j = input; 149 CHECK(j.dump(-1, ' ', true, json::error_handler_t::replace) == "\"" + expected + "\""); 150 }; 151 152 test("\xC2", "\\ufffd"); 153 test("\xC2\x41\x42", "\\ufffd" "\x41" "\x42"); 154 test("\xC2\xF4", "\\ufffd" "\\ufffd"); 155 156 test("\xF0\x80\x80\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 157 test("\xF1\x80\x80\x41", "\\ufffd" "\x41"); 158 test("\xF2\x80\x80\x41", "\\ufffd" "\x41"); 159 test("\xF3\x80\x80\x41", "\\ufffd" "\x41"); 160 test("\xF4\x80\x80\x41", "\\ufffd" "\x41"); 161 test("\xF5\x80\x80\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 162 163 test("\xF0\x90\x80\x41", "\\ufffd" "\x41"); 164 test("\xF1\x90\x80\x41", "\\ufffd" "\x41"); 165 test("\xF2\x90\x80\x41", "\\ufffd" "\x41"); 166 test("\xF3\x90\x80\x41", "\\ufffd" "\x41"); 167 test("\xF4\x90\x80\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 168 test("\xF5\x90\x80\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 169 170 test("\xC0\xAF\xE0\x80\xBF\xF0\x81\x82\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 171 test("\xED\xA0\x80\xED\xBF\xBF\xED\xAF\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 172 test("\xF4\x91\x92\x93\xFF\x41\x80\xBF\x42", "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\x41" "\\ufffd""\\ufffd" "\x42"); 173 test("\xE1\x80\xE2\xF0\x91\x92\xF1\xBF\x41", "\\ufffd" "\\ufffd" "\\ufffd" "\\ufffd" "\x41"); 174 } 175 } 176 177 SECTION("to_string") 178 { 179 auto test = [&](std::string const & input, std::string const & expected) __anon4e96612c0202(std::string const & input, std::string const & expected) 180 { 181 using std::to_string; 182 json j = input; 183 CHECK(to_string(j) == "\"" + expected + "\""); 184 }; 185 186 test(R"({"x":5,"y":6})", R"({\"x\":5,\"y\":6})"); 187 test("{\"x\":[10,null,null,null]}", R"({\"x\":[10,null,null,null]})"); 188 test("test", "test"); 189 test("[3,\"false\",false]", R"([3,\"false\",false])"); 190 } 191 } 192 193 TEST_CASE_TEMPLATE("serialization for extreme integer values", T, int32_t, uint32_t, int64_t, uint64_t) 194 { 195 SECTION("minimum") 196 { 197 constexpr auto minimum = (std::numeric_limits<T>::min)(); 198 json j = minimum; 199 CHECK(j.dump() == std::to_string(minimum)); 200 } 201 202 SECTION("maximum") 203 { 204 constexpr auto maximum = (std::numeric_limits<T>::max)(); 205 json j = maximum; 206 CHECK(j.dump() == std::to_string(maximum)); 207 } 208 } 209 210 TEST_CASE("dump with binary values") 211 { 212 auto binary = json::binary({1, 2, 3, 4}); 213 auto binary_empty = json::binary({}); 214 auto binary_with_subtype = json::binary({1, 2, 3, 4}, 128); 215 auto binary_empty_with_subtype = json::binary({}, 128); 216 217 json object = {{"key", binary}}; 218 json object_empty = {{"key", binary_empty}}; 219 json object_with_subtype = {{"key", binary_with_subtype}}; 220 json object_empty_with_subtype = {{"key", binary_empty_with_subtype}}; 221 222 json array = {"value", 1, binary}; 223 json array_empty = {"value", 1, binary_empty}; 224 json array_with_subtype = {"value", 1, binary_with_subtype}; 225 json array_empty_with_subtype = {"value", 1, binary_empty_with_subtype}; 226 227 SECTION("normal") 228 { 229 CHECK(binary.dump() == "{\"bytes\":[1,2,3,4],\"subtype\":null}"); 230 CHECK(binary_empty.dump() == "{\"bytes\":[],\"subtype\":null}"); 231 CHECK(binary_with_subtype.dump() == "{\"bytes\":[1,2,3,4],\"subtype\":128}"); 232 CHECK(binary_empty_with_subtype.dump() == "{\"bytes\":[],\"subtype\":128}"); 233 234 CHECK(object.dump() == "{\"key\":{\"bytes\":[1,2,3,4],\"subtype\":null}}"); 235 CHECK(object_empty.dump() == "{\"key\":{\"bytes\":[],\"subtype\":null}}"); 236 CHECK(object_with_subtype.dump() == "{\"key\":{\"bytes\":[1,2,3,4],\"subtype\":128}}"); 237 CHECK(object_empty_with_subtype.dump() == "{\"key\":{\"bytes\":[],\"subtype\":128}}"); 238 239 CHECK(array.dump() == "[\"value\",1,{\"bytes\":[1,2,3,4],\"subtype\":null}]"); 240 CHECK(array_empty.dump() == "[\"value\",1,{\"bytes\":[],\"subtype\":null}]"); 241 CHECK(array_with_subtype.dump() == "[\"value\",1,{\"bytes\":[1,2,3,4],\"subtype\":128}]"); 242 CHECK(array_empty_with_subtype.dump() == "[\"value\",1,{\"bytes\":[],\"subtype\":128}]"); 243 } 244 245 SECTION("pretty-printed") 246 { 247 CHECK(binary.dump(4) == "{\n" 248 " \"bytes\": [1, 2, 3, 4],\n" 249 " \"subtype\": null\n" 250 "}"); 251 CHECK(binary_empty.dump(4) == "{\n" 252 " \"bytes\": [],\n" 253 " \"subtype\": null\n" 254 "}"); 255 CHECK(binary_with_subtype.dump(4) == "{\n" 256 " \"bytes\": [1, 2, 3, 4],\n" 257 " \"subtype\": 128\n" 258 "}"); 259 CHECK(binary_empty_with_subtype.dump(4) == "{\n" 260 " \"bytes\": [],\n" 261 " \"subtype\": 128\n" 262 "}"); 263 264 CHECK(object.dump(4) == "{\n" 265 " \"key\": {\n" 266 " \"bytes\": [1, 2, 3, 4],\n" 267 " \"subtype\": null\n" 268 " }\n" 269 "}"); 270 CHECK(object_empty.dump(4) == "{\n" 271 " \"key\": {\n" 272 " \"bytes\": [],\n" 273 " \"subtype\": null\n" 274 " }\n" 275 "}"); 276 CHECK(object_with_subtype.dump(4) == "{\n" 277 " \"key\": {\n" 278 " \"bytes\": [1, 2, 3, 4],\n" 279 " \"subtype\": 128\n" 280 " }\n" 281 "}"); 282 CHECK(object_empty_with_subtype.dump(4) == "{\n" 283 " \"key\": {\n" 284 " \"bytes\": [],\n" 285 " \"subtype\": 128\n" 286 " }\n" 287 "}"); 288 289 CHECK(array.dump(4) == "[\n" 290 " \"value\",\n" 291 " 1,\n" 292 " {\n" 293 " \"bytes\": [1, 2, 3, 4],\n" 294 " \"subtype\": null\n" 295 " }\n" 296 "]"); 297 CHECK(array_empty.dump(4) == "[\n" 298 " \"value\",\n" 299 " 1,\n" 300 " {\n" 301 " \"bytes\": [],\n" 302 " \"subtype\": null\n" 303 " }\n" 304 "]"); 305 CHECK(array_with_subtype.dump(4) == "[\n" 306 " \"value\",\n" 307 " 1,\n" 308 " {\n" 309 " \"bytes\": [1, 2, 3, 4],\n" 310 " \"subtype\": 128\n" 311 " }\n" 312 "]"); 313 CHECK(array_empty_with_subtype.dump(4) == "[\n" 314 " \"value\",\n" 315 " 1,\n" 316 " {\n" 317 " \"bytes\": [],\n" 318 " \"subtype\": 128\n" 319 " }\n" 320 "]"); 321 } 322 } 323