40160f482a
This commit removed the re2c lexer and replaced it by a manual version. Its integration is not yet complete: number parsing does not respect locales or overflows. Furthermore, parsing does not need to end with EOF. Therefore, a lot of test cases fail. The idea is to push this branch forward so we can conduct performance comparisons. So far, a nice side effect are better diagnosis messages in case of parse errors.
858 lines
43 KiB
C++
858 lines
43 KiB
C++
/*
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__ _____ _____ _____
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__| | __| | | | JSON for Modern C++ (test suite)
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| | |__ | | | | | | version 2.1.1
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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) 2013-2017 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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#define private public
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#include "json.hpp"
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using nlohmann::json;
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#include <valarray>
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TEST_CASE("parser class")
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{
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SECTION("parse")
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{
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SECTION("null")
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{
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CHECK(json::parser("null").parse() == json(nullptr));
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}
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SECTION("true")
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{
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CHECK(json::parser("true").parse() == json(true));
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}
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SECTION("false")
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{
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CHECK(json::parser("false").parse() == json(false));
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}
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SECTION("array")
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{
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SECTION("empty array")
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{
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CHECK(json::parser("[]").parse() == json(json::value_t::array));
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CHECK(json::parser("[ ]").parse() == json(json::value_t::array));
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}
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SECTION("nonempty array")
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{
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CHECK(json::parser("[true, false, null]").parse() == json({true, false, nullptr}));
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}
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}
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SECTION("object")
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{
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SECTION("empty object")
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{
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CHECK(json::parser("{}").parse() == json(json::value_t::object));
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CHECK(json::parser("{ }").parse() == json(json::value_t::object));
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}
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SECTION("nonempty object")
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{
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CHECK(json::parser("{\"\": true, \"one\": 1, \"two\": null}").parse() == json({{"", true}, {"one", 1}, {"two", nullptr}}));
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}
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}
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SECTION("string")
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{
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// empty string
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CHECK(json::parser("\"\"").parse() == json(json::value_t::string));
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SECTION("errors")
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{
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// error: tab in string
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CHECK_THROWS_AS(json::parser("\"\t\"").parse(), json::parse_error);
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CHECK_THROWS_WITH(json::parser("\"\t\"").parse(),
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"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
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// error: newline in string
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CHECK_THROWS_AS(json::parser("\"\n\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\r\"").parse(), json::parse_error);
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CHECK_THROWS_WITH(json::parser("\"\n\"").parse(),
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"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
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CHECK_THROWS_WITH(json::parser("\"\r\"").parse(),
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"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
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// error: backspace in string
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CHECK_THROWS_AS(json::parser("\"\b\"").parse(), json::parse_error);
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CHECK_THROWS_WITH(json::parser("\"\b\"").parse(),
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"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
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// improve code coverage
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CHECK_THROWS_AS(json::parser("\uFF01").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("[-4:1,]").parse(), json::parse_error);
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// unescaped control characters
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CHECK_THROWS_AS(json::parser("\"\x00\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x01\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x02\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x03\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x04\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x05\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x06\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x07\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x08\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x09\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0a\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0b\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0c\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0d\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0e\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x0f\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x10\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x11\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x12\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x13\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x14\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x15\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x16\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x17\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x18\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x19\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1a\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1b\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1c\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1d\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1e\"").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("\"\x1f\"").parse(), json::parse_error);
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}
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SECTION("escaped")
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{
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// quotation mark "\""
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auto r1 = R"("\"")"_json;
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CHECK(json::parser("\"\\\"\"").parse() == r1);
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// reverse solidus "\\"
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auto r2 = R"("\\")"_json;
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CHECK(json::parser("\"\\\\\"").parse() == r2);
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// solidus
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CHECK(json::parser("\"\\/\"").parse() == R"("/")"_json);
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// backspace
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CHECK(json::parser("\"\\b\"").parse() == json("\b"));
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// formfeed
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CHECK(json::parser("\"\\f\"").parse() == json("\f"));
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// newline
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CHECK(json::parser("\"\\n\"").parse() == json("\n"));
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// carriage return
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CHECK(json::parser("\"\\r\"").parse() == json("\r"));
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// horizontal tab
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CHECK(json::parser("\"\\t\"").parse() == json("\t"));
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CHECK(json::parser("\"\\u0001\"").parse().get<json::string_t>() == "\x01");
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CHECK(json::parser("\"\\u000a\"").parse().get<json::string_t>() == "\n");
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CHECK(json::parser("\"\\u00b0\"").parse().get<json::string_t>() == "°");
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CHECK(json::parser("\"\\u0c00\"").parse().get<json::string_t>() == "ఀ");
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CHECK(json::parser("\"\\ud000\"").parse().get<json::string_t>() == "퀀");
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CHECK(json::parser("\"\\u000E\"").parse().get<json::string_t>() == "\x0E");
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CHECK(json::parser("\"\\u00F0\"").parse().get<json::string_t>() == "ð");
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CHECK(json::parser("\"\\u0100\"").parse().get<json::string_t>() == "Ā");
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CHECK(json::parser("\"\\u2000\"").parse().get<json::string_t>() == " ");
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CHECK(json::parser("\"\\uFFFF\"").parse().get<json::string_t>() == "");
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CHECK(json::parser("\"\\u20AC\"").parse().get<json::string_t>() == "€");
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CHECK(json::parser("\"€\"").parse().get<json::string_t>() == "€");
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CHECK(json::parser("\"🎈\"").parse().get<json::string_t>() == "🎈");
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CHECK(json::parse("\"\\ud80c\\udc60\"").get<json::string_t>() == u8"\U00013060");
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CHECK(json::parse("\"\\ud83c\\udf1e\"").get<json::string_t>() == "🌞");
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}
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}
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SECTION("number")
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{
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SECTION("integers")
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{
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SECTION("without exponent")
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{
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CHECK(json::parser("-128").parse() == json(-128));
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CHECK(json::parser("-0").parse() == json(-0));
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CHECK(json::parser("0").parse() == json(0));
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CHECK(json::parser("128").parse() == json(128));
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}
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SECTION("with exponent")
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{
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CHECK(json::parser("0e1").parse() == json(0e1));
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CHECK(json::parser("0E1").parse() == json(0e1));
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CHECK(json::parser("10000E-4").parse() == json(10000e-4));
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CHECK(json::parser("10000E-3").parse() == json(10000e-3));
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CHECK(json::parser("10000E-2").parse() == json(10000e-2));
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CHECK(json::parser("10000E-1").parse() == json(10000e-1));
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CHECK(json::parser("10000E0").parse() == json(10000e0));
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CHECK(json::parser("10000E1").parse() == json(10000e1));
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CHECK(json::parser("10000E2").parse() == json(10000e2));
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CHECK(json::parser("10000E3").parse() == json(10000e3));
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CHECK(json::parser("10000E4").parse() == json(10000e4));
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CHECK(json::parser("10000e-4").parse() == json(10000e-4));
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CHECK(json::parser("10000e-3").parse() == json(10000e-3));
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CHECK(json::parser("10000e-2").parse() == json(10000e-2));
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CHECK(json::parser("10000e-1").parse() == json(10000e-1));
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CHECK(json::parser("10000e0").parse() == json(10000e0));
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CHECK(json::parser("10000e1").parse() == json(10000e1));
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CHECK(json::parser("10000e2").parse() == json(10000e2));
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CHECK(json::parser("10000e3").parse() == json(10000e3));
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CHECK(json::parser("10000e4").parse() == json(10000e4));
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CHECK(json::parser("-0e1").parse() == json(-0e1));
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CHECK(json::parser("-0E1").parse() == json(-0e1));
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CHECK(json::parser("-0E123").parse() == json(-0e123));
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}
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SECTION("edge cases")
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{
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// From RFC7159, Section 6:
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// Note that when such software is used, numbers that are
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// integers and are in the range [-(2**53)+1, (2**53)-1]
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// are interoperable in the sense that implementations will
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// agree exactly on their numeric values.
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// -(2**53)+1
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CHECK(json::parser("-9007199254740991").parse().get<int64_t>() == -9007199254740991);
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// (2**53)-1
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CHECK(json::parser("9007199254740991").parse().get<int64_t>() == 9007199254740991);
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}
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SECTION("over the edge cases") // issue #178 - Integer conversion to unsigned (incorrect handling of 64 bit integers)
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{
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// While RFC7159, Section 6 specifies a preference for support
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// for ranges in range of IEEE 754-2008 binary64 (double precision)
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// this does not accommodate 64 bit integers without loss of accuracy.
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// As 64 bit integers are now widely used in software, it is desirable
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// to expand support to to the full 64 bit (signed and unsigned) range
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// i.e. -(2**63) -> (2**64)-1.
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// -(2**63) ** Note: compilers see negative literals as negated positive numbers (hence the -1))
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CHECK(json::parser("-9223372036854775808").parse().get<int64_t>() == -9223372036854775807 - 1);
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// (2**63)-1
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CHECK(json::parser("9223372036854775807").parse().get<int64_t>() == 9223372036854775807);
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// (2**64)-1
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CHECK(json::parser("18446744073709551615").parse().get<uint64_t>() == 18446744073709551615u);
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}
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}
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SECTION("floating-point")
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{
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SECTION("without exponent")
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{
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CHECK(json::parser("-128.5").parse() == json(-128.5));
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CHECK(json::parser("0.999").parse() == json(0.999));
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CHECK(json::parser("128.5").parse() == json(128.5));
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CHECK(json::parser("-0.0").parse() == json(-0.0));
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}
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SECTION("with exponent")
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{
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CHECK(json::parser("-128.5E3").parse() == json(-128.5E3));
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CHECK(json::parser("-128.5E-3").parse() == json(-128.5E-3));
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CHECK(json::parser("-0.0e1").parse() == json(-0.0e1));
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CHECK(json::parser("-0.0E1").parse() == json(-0.0e1));
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}
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}
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SECTION("overflow")
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{
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// overflows during parsing yield an exception
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CHECK_THROWS_AS(json::parser("1.18973e+4932").parse() == json(), json::out_of_range);
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CHECK_THROWS_WITH(json::parser("1.18973e+4932").parse() == json(),
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"[json.exception.out_of_range.406] number overflow parsing '1.18973e+4932'");
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}
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SECTION("invalid numbers")
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{
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CHECK_THROWS_AS(json::parser("01").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("--1").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1E").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1E-").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1.E1").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-1E").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0E#").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0E-#").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0#").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0.0:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0.0Z").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0E123:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0e0-:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0e-:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0f").parse(), json::parse_error);
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// numbers must not begin with "+"
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CHECK_THROWS_AS(json::parser("+1").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("+0").parse(), json::parse_error);
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CHECK_THROWS_WITH(json::parser("01").parse(),
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"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected '01'");
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CHECK_THROWS_WITH(json::parser("-01").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected '-01'");
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CHECK_THROWS_WITH(json::parser("--1").parse(),
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"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '-'");
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CHECK_THROWS_WITH(json::parser("1.").parse(),
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"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected '.'; expected end of input");
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CHECK_THROWS_WITH(json::parser("1E").parse(),
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"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'E'; expected end of input");
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CHECK_THROWS_WITH(json::parser("1E-").parse(),
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"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'E'; expected end of input");
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CHECK_THROWS_WITH(json::parser("1.E1").parse(),
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"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected '.'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-1E").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected 'E'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0E#").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected 'E'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0E-#").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected 'E'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0#").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected '#'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0.0:").parse(),
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"[json.exception.parse_error.101] parse error at 5: syntax error - unexpected ':'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0.0Z").parse(),
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"[json.exception.parse_error.101] parse error at 5: syntax error - unexpected 'Z'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0E123:").parse(),
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"[json.exception.parse_error.101] parse error at 7: syntax error - unexpected ':'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0e0-:").parse(),
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"[json.exception.parse_error.101] parse error at 5: syntax error - unexpected '-'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0e-:").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected 'e'; expected end of input");
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CHECK_THROWS_WITH(json::parser("-0f").parse(),
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"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected 'f'; expected end of input");
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}
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}
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}
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SECTION("parse errors")
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{
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// unexpected end of number
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CHECK_THROWS_AS(json::parser("0.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("--").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-0.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("-:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("0.:").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("e.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1e.").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1e/").parse(), json::parse_error);
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CHECK_THROWS_AS(json::parser("1e:").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("1E.").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("1E/").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("1E:").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("0.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected '.'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("-").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '-'");
|
||
CHECK_THROWS_WITH(json::parser("--").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '-'");
|
||
CHECK_THROWS_WITH(json::parser("-0.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected '.'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("-.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '-'");
|
||
CHECK_THROWS_WITH(json::parser("-:").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '-'");
|
||
CHECK_THROWS_WITH(json::parser("0.:").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected '.'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("e.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'e'");
|
||
CHECK_THROWS_WITH(json::parser("1e.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'e'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("1e/").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'e'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("1e:").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'e'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("1E.").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'E'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("1E/").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'E'; expected end of input");
|
||
CHECK_THROWS_WITH(json::parser("1E:").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected 'E'; expected end of input");
|
||
|
||
// unexpected end of null
|
||
CHECK_THROWS_AS(json::parser("n").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("nu").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("nul").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("n").parse(), "[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'n'");
|
||
CHECK_THROWS_WITH(json::parser("nu").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'n'");
|
||
CHECK_THROWS_WITH(json::parser("nul").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'n'");
|
||
|
||
// unexpected end of true
|
||
CHECK_THROWS_AS(json::parser("t").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("tr").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("tru").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("t").parse(), "[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 't'");
|
||
CHECK_THROWS_WITH(json::parser("tr").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 't'");
|
||
CHECK_THROWS_WITH(json::parser("tru").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 't'");
|
||
|
||
// unexpected end of false
|
||
CHECK_THROWS_AS(json::parser("f").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("fa").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("fal").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("fals").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("f").parse(), "[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'f'");
|
||
CHECK_THROWS_WITH(json::parser("fa").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'f'");
|
||
CHECK_THROWS_WITH(json::parser("fal").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'f'");
|
||
CHECK_THROWS_WITH(json::parser("fals").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected 'f'");
|
||
|
||
// missing/unexpected end of array
|
||
CHECK_THROWS_AS(json::parser("[").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("[1").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("[1,").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("[1,]").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("]").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("[").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected end of input");
|
||
CHECK_THROWS_WITH(json::parser("[1").parse(),
|
||
"[json.exception.parse_error.101] parse error at 3: syntax error - unexpected end of input; expected ']'");
|
||
CHECK_THROWS_WITH(json::parser("[1,").parse(),
|
||
"[json.exception.parse_error.101] parse error at 4: syntax error - unexpected end of input");
|
||
CHECK_THROWS_WITH(json::parser("[1,]").parse(),
|
||
"[json.exception.parse_error.101] parse error at 4: syntax error - unexpected ']'");
|
||
CHECK_THROWS_WITH(json::parser("]").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected ']'");
|
||
|
||
// missing/unexpected end of object
|
||
CHECK_THROWS_AS(json::parser("{").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("{\"foo\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("{\"foo\":").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("{\"foo\":}").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("{\"foo\":1,}").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("}").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("{").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected end of input; expected string literal");
|
||
CHECK_THROWS_WITH(json::parser("{\"foo\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 7: syntax error - unexpected end of input; expected ':'");
|
||
CHECK_THROWS_WITH(json::parser("{\"foo\":").parse(),
|
||
"[json.exception.parse_error.101] parse error at 8: syntax error - unexpected end of input");
|
||
CHECK_THROWS_WITH(json::parser("{\"foo\":}").parse(),
|
||
"[json.exception.parse_error.101] parse error at 8: syntax error - unexpected '}'");
|
||
CHECK_THROWS_WITH(json::parser("{\"foo\":1,}").parse(),
|
||
"[json.exception.parse_error.101] parse error at 10: syntax error - unexpected '}'; expected string literal");
|
||
CHECK_THROWS_WITH(json::parser("}").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '}'");
|
||
|
||
// missing/unexpected end of string
|
||
CHECK_THROWS_AS(json::parser("\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u0\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u01\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u012\"").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u0").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u01").parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser("\"\\u012").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u0\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u01\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u012\"").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u0").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u01").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser("\"\\u012").parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
|
||
// invalid escapes
|
||
for (int c = 1; c < 128; ++c)
|
||
{
|
||
auto s = std::string("\"\\") + std::string(1, static_cast<char>(c)) + "\"";
|
||
|
||
switch (c)
|
||
{
|
||
// valid escapes
|
||
case ('"'):
|
||
case ('\\'):
|
||
case ('/'):
|
||
case ('b'):
|
||
case ('f'):
|
||
case ('n'):
|
||
case ('r'):
|
||
case ('t'):
|
||
{
|
||
CHECK_NOTHROW(json::parser(s.c_str()).parse());
|
||
break;
|
||
}
|
||
|
||
// \u must be followed with four numbers, so we skip it here
|
||
case ('u'):
|
||
{
|
||
break;
|
||
}
|
||
|
||
// any other combination of backslash and character is invalid
|
||
default:
|
||
{
|
||
CHECK_THROWS_AS(json::parser(s.c_str()).parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser(s.c_str()).parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// invalid \uxxxx escapes
|
||
{
|
||
// check whether character is a valid hex character
|
||
const auto valid = [](int c)
|
||
{
|
||
switch (c)
|
||
{
|
||
case ('0'):
|
||
case ('1'):
|
||
case ('2'):
|
||
case ('3'):
|
||
case ('4'):
|
||
case ('5'):
|
||
case ('6'):
|
||
case ('7'):
|
||
case ('8'):
|
||
case ('9'):
|
||
case ('a'):
|
||
case ('b'):
|
||
case ('c'):
|
||
case ('d'):
|
||
case ('e'):
|
||
case ('f'):
|
||
case ('A'):
|
||
case ('B'):
|
||
case ('C'):
|
||
case ('D'):
|
||
case ('E'):
|
||
case ('F'):
|
||
{
|
||
return true;
|
||
}
|
||
|
||
default:
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
};
|
||
|
||
for (int c = 1; c < 128; ++c)
|
||
{
|
||
std::string s = "\"\\u";
|
||
|
||
// create a string with the iterated character at each position
|
||
auto s1 = s + "000" + std::string(1, static_cast<char>(c)) + "\"";
|
||
auto s2 = s + "00" + std::string(1, static_cast<char>(c)) + "0\"";
|
||
auto s3 = s + "0" + std::string(1, static_cast<char>(c)) + "00\"";
|
||
auto s4 = s + std::string(1, static_cast<char>(c)) + "000\"";
|
||
|
||
if (valid(c))
|
||
{
|
||
CHECK_NOTHROW(json::parser(s1.c_str()).parse());
|
||
CHECK_NOTHROW(json::parser(s2.c_str()).parse());
|
||
CHECK_NOTHROW(json::parser(s3.c_str()).parse());
|
||
CHECK_NOTHROW(json::parser(s4.c_str()).parse());
|
||
}
|
||
else
|
||
{
|
||
CHECK_THROWS_AS(json::parser(s1.c_str()).parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser(s2.c_str()).parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser(s3.c_str()).parse(), json::parse_error);
|
||
CHECK_THROWS_AS(json::parser(s4.c_str()).parse(), json::parse_error);
|
||
|
||
CHECK_THROWS_WITH(json::parser(s1.c_str()).parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser(s2.c_str()).parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser(s3.c_str()).parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
CHECK_THROWS_WITH(json::parser(s4.c_str()).parse(),
|
||
"[json.exception.parse_error.101] parse error at 1: syntax error - unexpected '\"'");
|
||
}
|
||
}
|
||
}
|
||
|
||
// missing part of a surrogate pair
|
||
CHECK_THROWS_AS(json::parse("\"\\uD80C\""), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parse("\"\\uD80C\""),
|
||
"[json.exception.parse_error.102] parse error at 8: missing low surrogate");
|
||
// invalid surrogate pair
|
||
CHECK_THROWS_AS(json::parse("\"\\uD80C\\uD80C\""), json::parse_error);
|
||
CHECK_THROWS_AS(json::parse("\"\\uD80C\\u0000\""), json::parse_error);
|
||
CHECK_THROWS_AS(json::parse("\"\\uD80C\\uFFFF\""), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parse("\"\\uD80C\\uD80C\""),
|
||
"[json.exception.parse_error.102] parse error at 14: missing or wrong low surrogate");
|
||
CHECK_THROWS_WITH(json::parse("\"\\uD80C\\u0000\""),
|
||
"[json.exception.parse_error.102] parse error at 14: missing or wrong low surrogate");
|
||
CHECK_THROWS_WITH(json::parse("\"\\uD80C\\uFFFF\""),
|
||
"[json.exception.parse_error.102] parse error at 14: missing or wrong low surrogate");
|
||
}
|
||
|
||
SECTION("tests found by mutate++")
|
||
{
|
||
// test case to make sure no comma preceeds the first key
|
||
CHECK_THROWS_AS(json::parser("{,\"key\": false}").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("{,\"key\": false}").parse(),
|
||
"[json.exception.parse_error.101] parse error at 2: syntax error - unexpected ','");
|
||
// test case to make sure an object is properly closed
|
||
CHECK_THROWS_AS(json::parser("[{\"key\": false true]").parse(), json::parse_error);
|
||
CHECK_THROWS_WITH(json::parser("[{\"key\": false true]").parse(),
|
||
"[json.exception.parse_error.101] parse error at 19: syntax error - unexpected true literal; expected '}'");
|
||
|
||
// test case to make sure the callback is properly evaluated after reading a key
|
||
{
|
||
json::parser_callback_t cb = [](int, json::parse_event_t event, json&)
|
||
{
|
||
if (event == json::parse_event_t::key)
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
};
|
||
|
||
json x = json::parse("{\"key\": false}", cb);
|
||
CHECK(x == json::object());
|
||
}
|
||
}
|
||
|
||
SECTION("callback function")
|
||
{
|
||
auto s_object = R"(
|
||
{
|
||
"foo": 2,
|
||
"bar": {
|
||
"baz": 1
|
||
}
|
||
}
|
||
)";
|
||
|
||
auto s_array = R"(
|
||
[1,2,[3,4,5],4,5]
|
||
)";
|
||
|
||
SECTION("filter nothing")
|
||
{
|
||
json j_object = json::parse(s_object, [](int, json::parse_event_t, const json&)
|
||
{
|
||
return true;
|
||
});
|
||
|
||
CHECK (j_object == json({{"foo", 2}, {"bar", {{"baz", 1}}}}));
|
||
|
||
json j_array = json::parse(s_array, [](int, json::parse_event_t, const json&)
|
||
{
|
||
return true;
|
||
});
|
||
|
||
CHECK (j_array == json({1, 2, {3, 4, 5}, 4, 5}));
|
||
}
|
||
|
||
SECTION("filter everything")
|
||
{
|
||
json j_object = json::parse(s_object, [](int, json::parse_event_t, const json&)
|
||
{
|
||
return false;
|
||
});
|
||
|
||
// the top-level object will be discarded, leaving a null
|
||
CHECK (j_object.is_null());
|
||
|
||
json j_array = json::parse(s_array, [](int, json::parse_event_t, const json&)
|
||
{
|
||
return false;
|
||
});
|
||
|
||
// the top-level array will be discarded, leaving a null
|
||
CHECK (j_array.is_null());
|
||
}
|
||
|
||
SECTION("filter specific element")
|
||
{
|
||
json j_object = json::parse(s_object, [](int, json::parse_event_t, const json & j)
|
||
{
|
||
// filter all number(2) elements
|
||
if (j == json(2))
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
|
||
CHECK (j_object == json({{"bar", {{"baz", 1}}}}));
|
||
|
||
json j_array = json::parse(s_array, [](int, json::parse_event_t, const json & j)
|
||
{
|
||
if (j == json(2))
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
|
||
CHECK (j_array == json({1, {3, 4, 5}, 4, 5}));
|
||
}
|
||
|
||
SECTION("filter specific events")
|
||
{
|
||
SECTION("first closing event")
|
||
{
|
||
{
|
||
json j_object = json::parse(s_object, [](int, json::parse_event_t e, const json&)
|
||
{
|
||
static bool first = true;
|
||
if (e == json::parse_event_t::object_end and first)
|
||
{
|
||
first = false;
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
|
||
// the first completed object will be discarded
|
||
CHECK (j_object == json({{"foo", 2}}));
|
||
}
|
||
|
||
{
|
||
json j_array = json::parse(s_array, [](int, json::parse_event_t e, const json&)
|
||
{
|
||
static bool first = true;
|
||
if (e == json::parse_event_t::array_end and first)
|
||
{
|
||
first = false;
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
|
||
// the first completed array will be discarded
|
||
CHECK (j_array == json({1, 2, 4, 5}));
|
||
}
|
||
}
|
||
}
|
||
|
||
SECTION("special cases")
|
||
{
|
||
// the following test cases cover the situation in which an empty
|
||
// object and array is discarded only after the closing character
|
||
// has been read
|
||
|
||
json j_empty_object = json::parse("{}", [](int, json::parse_event_t e, const json&)
|
||
{
|
||
if (e == json::parse_event_t::object_end)
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
CHECK(j_empty_object == json());
|
||
|
||
json j_empty_array = json::parse("[]", [](int, json::parse_event_t e, const json&)
|
||
{
|
||
if (e == json::parse_event_t::array_end)
|
||
{
|
||
return false;
|
||
}
|
||
else
|
||
{
|
||
return true;
|
||
}
|
||
});
|
||
CHECK(j_empty_array == json());
|
||
}
|
||
}
|
||
|
||
SECTION("constructing from contiguous containers")
|
||
{
|
||
SECTION("from std::vector")
|
||
{
|
||
std::vector<uint8_t> v = {'t', 'r', 'u', 'e'};
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
|
||
SECTION("from std::array")
|
||
{
|
||
std::array<uint8_t, 5> v { {'t', 'r', 'u', 'e'} };
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
|
||
SECTION("from array")
|
||
{
|
||
uint8_t v[] = {'t', 'r', 'u', 'e'};
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
|
||
SECTION("from char literal")
|
||
{
|
||
CHECK(json::parser("true").parse() == json(true));
|
||
}
|
||
|
||
SECTION("from std::string")
|
||
{
|
||
std::string v = {'t', 'r', 'u', 'e'};
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
|
||
SECTION("from std::initializer_list")
|
||
{
|
||
std::initializer_list<uint8_t> v = {'t', 'r', 'u', 'e'};
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
|
||
SECTION("from std::valarray")
|
||
{
|
||
std::valarray<uint8_t> v = {'t', 'r', 'u', 'e'};
|
||
CHECK(json::parser(std::begin(v), std::end(v)).parse() == json(true));
|
||
}
|
||
}
|
||
}
|