mirror of
https://github.com/nlohmann/json
synced 2024-11-27 14:20:07 +00:00
318 lines
18 KiB
C++
318 lines
18 KiB
C++
/*
|
|
__ _____ _____ _____
|
|
__| | __| | | | JSON for Modern C++ (test suite)
|
|
| | |__ | | | | | | version 3.1.2
|
|
|_____|_____|_____|_|___| https://github.com/nlohmann/json
|
|
|
|
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
|
|
SPDX-License-Identifier: MIT
|
|
Copyright (c) 2013-2018 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"
|
|
|
|
#include <nlohmann/json.hpp>
|
|
using nlohmann::json;
|
|
|
|
TEST_CASE("reference access")
|
|
{
|
|
// create a JSON value with different types
|
|
json json_types =
|
|
{
|
|
{"boolean", true},
|
|
{
|
|
"number", {
|
|
{"integer", 42},
|
|
{"floating-point", 17.23}
|
|
}
|
|
},
|
|
{"string", "Hello, world!"},
|
|
{"array", {1, 2, 3, 4, 5}},
|
|
{"null", nullptr}
|
|
};
|
|
|
|
SECTION("reference access to object_t")
|
|
{
|
|
using test_type = json::object_t;
|
|
json value = {{"one", 1}, {"two", 2}};
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_NOTHROW(value.get_ref<json::object_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is object");
|
|
}
|
|
|
|
SECTION("const reference access to const object_t")
|
|
{
|
|
using test_type = json::object_t;
|
|
const json value = {{"one", 1}, {"two", 2}};
|
|
|
|
// this should not compile
|
|
// test_type& p1 = value.get_ref<test_type&>();
|
|
|
|
// check if references are returned correctly
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
}
|
|
|
|
SECTION("reference access to array_t")
|
|
{
|
|
using test_type = json::array_t;
|
|
json value = {1, 2, 3, 4};
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
CHECK_NOTHROW(value.get_ref<json::array_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is array");
|
|
}
|
|
|
|
SECTION("reference access to string_t")
|
|
{
|
|
using test_type = json::string_t;
|
|
json value = "hello";
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
CHECK_NOTHROW(value.get_ref<json::string_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is string");
|
|
}
|
|
|
|
SECTION("reference access to boolean_t")
|
|
{
|
|
using test_type = json::boolean_t;
|
|
json value = false;
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
CHECK_NOTHROW(value.get_ref<json::boolean_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is boolean");
|
|
}
|
|
|
|
SECTION("reference access to number_integer_t")
|
|
{
|
|
using test_type = json::number_integer_t;
|
|
json value = -23;
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_NOTHROW(value.get_ref<json::number_integer_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
}
|
|
|
|
SECTION("reference access to number_unsigned_t")
|
|
{
|
|
using test_type = json::number_unsigned_t;
|
|
json value = 23u;
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
//CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
//CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
// "[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_NOTHROW(value.get_ref<json::number_unsigned_t&>());
|
|
CHECK_THROWS_AS(value.get_ref<json::number_float_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_float_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
}
|
|
|
|
SECTION("reference access to number_float_t")
|
|
{
|
|
using test_type = json::number_float_t;
|
|
json value = 42.23;
|
|
|
|
// check if references are returned correctly
|
|
test_type& p1 = value.get_ref<test_type&>();
|
|
CHECK(&p1 == value.get_ptr<test_type*>());
|
|
CHECK(p1 == value.get<test_type>());
|
|
|
|
const test_type& p2 = value.get_ref<const test_type&>();
|
|
CHECK(&p2 == value.get_ptr<const test_type*>());
|
|
CHECK(p2 == value.get<test_type>());
|
|
|
|
// check if mismatching references throw correctly
|
|
CHECK_THROWS_AS(value.get_ref<json::object_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::object_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::array_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::array_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::string_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::string_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::boolean_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::boolean_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_integer_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_integer_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_THROWS_AS(value.get_ref<json::number_unsigned_t&>(), json::type_error&);
|
|
CHECK_THROWS_WITH(value.get_ref<json::number_unsigned_t&>(),
|
|
"[json.exception.type_error.303] incompatible ReferenceType for get_ref, actual type is number");
|
|
CHECK_NOTHROW(value.get_ref<json::number_float_t&>());
|
|
}
|
|
}
|