187 lines
8.4 KiB
C++
187 lines
8.4 KiB
C++
/*
|
|
__ _____ _____ _____
|
|
__| | __| | | | JSON for Modern C++ (test suite)
|
|
| | |__ | | | | | | version 3.0.0
|
|
|_____|_____|_____|_|___| https://github.com/nlohmann/json
|
|
|
|
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
|
|
Copyright (c) 2013-2017 Niels Lohmann <http://nlohmann.me>.
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in all
|
|
copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
SOFTWARE.
|
|
*/
|
|
|
|
#include "catch.hpp"
|
|
|
|
#define private public
|
|
#include "json.hpp"
|
|
using nlohmann::json;
|
|
|
|
// shortcut to scan a string literal
|
|
json::lexer::token_type scan_string(const char* s);
|
|
json::lexer::token_type scan_string(const char* s)
|
|
{
|
|
return json::lexer(nlohmann::detail::input_adapter(s)).scan();
|
|
}
|
|
|
|
TEST_CASE("lexer class")
|
|
{
|
|
SECTION("scan")
|
|
{
|
|
SECTION("structural characters")
|
|
{
|
|
CHECK((scan_string("[") == json::lexer::token_type::begin_array));
|
|
CHECK((scan_string("]") == json::lexer::token_type::end_array));
|
|
CHECK((scan_string("{") == json::lexer::token_type::begin_object));
|
|
CHECK((scan_string("}") == json::lexer::token_type::end_object));
|
|
CHECK((scan_string(",") == json::lexer::token_type::value_separator));
|
|
CHECK((scan_string(":") == json::lexer::token_type::name_separator));
|
|
}
|
|
|
|
SECTION("literal names")
|
|
{
|
|
CHECK((scan_string("null") == json::lexer::token_type::literal_null));
|
|
CHECK((scan_string("true") == json::lexer::token_type::literal_true));
|
|
CHECK((scan_string("false") == json::lexer::token_type::literal_false));
|
|
}
|
|
|
|
SECTION("numbers")
|
|
{
|
|
CHECK((scan_string("0") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("1") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("2") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("3") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("4") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("5") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("6") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("7") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("8") == json::lexer::token_type::value_unsigned));
|
|
CHECK((scan_string("9") == json::lexer::token_type::value_unsigned));
|
|
|
|
CHECK((scan_string("-0") == json::lexer::token_type::value_integer));
|
|
CHECK((scan_string("-1") == json::lexer::token_type::value_integer));
|
|
|
|
CHECK((scan_string("1.1") == json::lexer::token_type::value_float));
|
|
CHECK((scan_string("-1.1") == json::lexer::token_type::value_float));
|
|
CHECK((scan_string("1E10") == json::lexer::token_type::value_float));
|
|
}
|
|
|
|
SECTION("whitespace")
|
|
{
|
|
// result is end_of_input, because not token is following
|
|
CHECK((scan_string(" ") == json::lexer::token_type::end_of_input));
|
|
CHECK((scan_string("\t") == json::lexer::token_type::end_of_input));
|
|
CHECK((scan_string("\n") == json::lexer::token_type::end_of_input));
|
|
CHECK((scan_string("\r") == json::lexer::token_type::end_of_input));
|
|
CHECK((scan_string(" \t\n\r\n\t ") == json::lexer::token_type::end_of_input));
|
|
}
|
|
}
|
|
|
|
SECTION("token_type_name")
|
|
{
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::uninitialized)) == "<uninitialized>"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::literal_true)) == "true literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::literal_false)) == "false literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::literal_null)) == "null literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::value_string)) == "string literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::value_unsigned)) == "number literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::value_integer)) == "number literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::value_float)) == "number literal"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::begin_array)) == "'['"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::begin_object)) == "'{'"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::end_array)) == "']'"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::end_object)) == "'}'"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::name_separator)) == "':'"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::value_separator)) == "','"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::parse_error)) == "<parse error>"));
|
|
CHECK((std::string(json::lexer::token_type_name(json::lexer::token_type::end_of_input)) == "end of input"));
|
|
}
|
|
|
|
SECTION("parse errors on first character")
|
|
{
|
|
for (int c = 1; c < 128; ++c)
|
|
{
|
|
// create string from the ASCII code
|
|
const auto s = std::string(1, static_cast<char>(c));
|
|
// store scan() result
|
|
const auto res = scan_string(s.c_str());
|
|
|
|
switch (c)
|
|
{
|
|
// single characters that are valid tokens
|
|
case ('['):
|
|
case (']'):
|
|
case ('{'):
|
|
case ('}'):
|
|
case (','):
|
|
case (':'):
|
|
case ('0'):
|
|
case ('1'):
|
|
case ('2'):
|
|
case ('3'):
|
|
case ('4'):
|
|
case ('5'):
|
|
case ('6'):
|
|
case ('7'):
|
|
case ('8'):
|
|
case ('9'):
|
|
{
|
|
CHECK((res != json::lexer::token_type::parse_error));
|
|
break;
|
|
}
|
|
|
|
// whitespace
|
|
case (' '):
|
|
case ('\t'):
|
|
case ('\n'):
|
|
case ('\r'):
|
|
{
|
|
CHECK((res == json::lexer::token_type::end_of_input));
|
|
break;
|
|
}
|
|
|
|
// anything else is not expected
|
|
default:
|
|
{
|
|
CHECK((res == json::lexer::token_type::parse_error));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
SECTION("very large string")
|
|
{
|
|
// strings larger than 1024 bytes yield a resize of the lexer's yytext buffer
|
|
std::string s("\"");
|
|
s += std::string(2048, 'x');
|
|
s += "\"";
|
|
CHECK((scan_string(s.c_str()) == json::lexer::token_type::value_string));
|
|
}
|
|
|
|
/* NOTE: to_unicode function has been removed
|
|
SECTION("to_unicode")
|
|
{
|
|
// lexer to call to_unicode on
|
|
json::lexer dummy_lexer("", 0);
|
|
CHECK(dummy_lexer.to_unicode(0x1F4A9) == "💩");
|
|
CHECK_THROWS_AS(dummy_lexer.to_unicode(0x200000), json::parse_error);
|
|
CHECK_THROWS_WITH(dummy_lexer.to_unicode(0x200000), "[json.exception.parse_error.103] parse error: code points above 0x10FFFF are invalid");
|
|
}
|
|
*/
|
|
}
|