j3d1/json
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity
json/test/src/unit-conversions.cpp
Théo DELRIEU 14cd019861
fix cmake install directory (for real this time) 
* Rename 'develop' folder to 'include/nlohmann'
* Rename 'src' folder to 'single_include/nlohmann'
* Use <nlohmann/*> headers in sources and tests
* Change amalgamate config file
2018-02-01 11:06:51 +01:00

1099 lines
38 KiB
C++
Raw Blame History

/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 3.0.1
|_____|_____|_____|_|___| 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 <nlohmann/json.hpp>
using nlohmann::json;
#include <deque>
#include <forward_list>
#include <list>
#include <unordered_map>
#include <unordered_set>
#include <valarray>
TEST_CASE("value conversion")
{
SECTION("get an object (explicit)")
{
json::object_t o_reference = {{"object", json::object()}, {"array", {1, 2, 3, 4}}, {"number", 42}, {"boolean", false}, {"null", nullptr}, {"string", "Hello world"} };
json j(o_reference);
SECTION("json::object_t")
{
json::object_t o = j.get<json::object_t>();
CHECK(json(o) == j);
}
SECTION("std::map<json::string_t, json>")
{
std::map<json::string_t, json> o = j.get<std::map<json::string_t, json>>();
CHECK(json(o) == j);
}
SECTION("std::multimap<json::string_t, json>")
{
std::multimap<json::string_t, json> o = j.get<std::multimap<json::string_t, json>>();
CHECK(json(o) == j);
}
SECTION("std::unordered_map<json::string_t, json>")
{
std::unordered_map<json::string_t, json> o = j.get<std::unordered_map<json::string_t, json>>();
CHECK(json(o) == j);
}
SECTION("std::unordered_multimap<json::string_t, json>")
{
std::unordered_multimap<json::string_t, json> o =
j.get<std::unordered_multimap<json::string_t, json>>();
CHECK(json(o) == j);
}
SECTION("exception in case of a non-object type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::array).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::string).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_unsigned).get<json::object_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::object_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is null");
CHECK_THROWS_WITH(json(json::value_t::array).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is array");
CHECK_THROWS_WITH(json(json::value_t::string).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is string");
CHECK_THROWS_WITH(json(json::value_t::boolean).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is boolean");
CHECK_THROWS_WITH(json(json::value_t::number_integer).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_unsigned).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_float).get<json::object_t>(),
"[json.exception.type_error.302] type must be object, but is number");
}
}
SECTION("get an object (implicit)")
{
json::object_t o_reference = {{"object", json::object()}, {"array", {1, 2, 3, 4}}, {"number", 42}, {"boolean", false}, {"null", nullptr}, {"string", "Hello world"} };
json j(o_reference);
SECTION("json::object_t")
{
json::object_t o = j;
CHECK(json(o) == j);
}
SECTION("std::map<json::string_t, json>")
{
std::map<json::string_t, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::multimap<json::string_t, json>")
{
std::multimap<json::string_t, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::unordered_map<json::string_t, json>")
{
std::unordered_map<json::string_t, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::unordered_multimap<json::string_t, json>")
{
std::unordered_multimap<json::string_t, json> o = j;
CHECK(json(o) == j);
}
}
SECTION("get an array (explicit)")
{
json::array_t a_reference {json(1), json(1u), json(2.2), json(false), json("string"), json()};
json j(a_reference);
SECTION("json::array_t")
{
json::array_t a = j.get<json::array_t>();
CHECK(json(a) == j);
}
SECTION("std::list<json>")
{
std::list<json> a = j.get<std::list<json>>();
CHECK(json(a) == j);
}
SECTION("std::forward_list<json>")
{
std::forward_list<json> a = j.get<std::forward_list<json>>();
CHECK(json(a) == j);
CHECK_THROWS_AS(json(json::value_t::null).get<std::forward_list<json>>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<std::forward_list<json>>(),
"[json.exception.type_error.302] type must be array, but is null");
}
SECTION("std::vector<json>")
{
std::vector<json> a = j.get<std::vector<json>>();
CHECK(json(a) == j);
CHECK_THROWS_AS(json(json::value_t::null).get<std::vector<json>>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<std::vector<json>>(),
"[json.exception.type_error.302] type must be array, but is null");
#if not defined(JSON_NOEXCEPTION)
SECTION("reserve is called on containers that supports it")
{
// making the call to from_json throw in order to check capacity
std::vector<float> v;
CHECK_THROWS_AS(nlohmann::from_json(j, v), json::type_error&);
CHECK(v.capacity() == j.size());
// make sure all values are properly copied
std::vector<int> v2 = json({1, 2, 3, 4, 5, 6, 7, 8, 9, 10});
CHECK(v2.size() == 10);
}
#endif
}
SECTION("built-in arrays")
{
const char str[] = "a string";
const int nbs[] = {0, 1, 2};
json j2 = nbs;
json j3 = str;
auto v = j2.get<std::vector<int>>();
auto s = j3.get<std::string>();
CHECK(std::equal(v.begin(), v.end(), std::begin(nbs)));
CHECK(s == str);
}
SECTION("std::deque<json>")
{
std::deque<json> a = j.get<std::deque<json>>();
CHECK(json(a) == j);
}
SECTION("exception in case of a non-array type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::object).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::string).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_unsigned).get<json::array_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::array_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::object).get<std::vector<int>>(),
"[json.exception.type_error.302] type must be array, but is object");
CHECK_THROWS_WITH(json(json::value_t::null).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is null");
CHECK_THROWS_WITH(json(json::value_t::object).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is object");
CHECK_THROWS_WITH(json(json::value_t::string).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is string");
CHECK_THROWS_WITH(json(json::value_t::boolean).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is boolean");
CHECK_THROWS_WITH(json(json::value_t::number_integer).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_unsigned).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_float).get<json::array_t>(),
"[json.exception.type_error.302] type must be array, but is number");
}
}
SECTION("get an array (implicit)")
{
json::array_t a_reference {json(1), json(1u), json(2.2), json(false), json("string"), json()};
json j(a_reference);
SECTION("json::array_t")
{
json::array_t a = j;
CHECK(json(a) == j);
}
SECTION("std::list<json>")
{
std::list<json> a = j;
CHECK(json(a) == j);
}
SECTION("std::forward_list<json>")
{
std::forward_list<json> a = j;
CHECK(json(a) == j);
}
SECTION("std::vector<json>")
{
std::vector<json> a = j;
CHECK(json(a) == j);
}
SECTION("std::deque<json>")
{
std::deque<json> a = j;
CHECK(json(a) == j);
}
}
SECTION("get a string (explicit)")
{
json::string_t s_reference {"Hello world"};
json j(s_reference);
SECTION("string_t")
{
json::string_t s = j.get<json::string_t>();
CHECK(json(s) == j);
}
SECTION("std::string")
{
std::string s = j.get<std::string>();
CHECK(json(s) == j);
}
SECTION("exception in case of a non-string type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::object).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::array).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_unsigned).get<json::string_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::string_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is null");
CHECK_THROWS_WITH(json(json::value_t::object).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is object");
CHECK_THROWS_WITH(json(json::value_t::array).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is array");
CHECK_THROWS_WITH(json(json::value_t::boolean).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is boolean");
CHECK_THROWS_WITH(json(json::value_t::number_integer).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_unsigned).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_float).get<json::string_t>(),
"[json.exception.type_error.302] type must be string, but is number");
}
}
SECTION("get a string (implicit)")
{
json::string_t s_reference {"Hello world"};
json j(s_reference);
SECTION("string_t")
{
json::string_t s = j;
CHECK(json(s) == j);
}
SECTION("std::string")
{
std::string s = j;
CHECK(json(s) == j);
}
}
SECTION("get a boolean (explicit)")
{
json::boolean_t b_reference {true};
json j(b_reference);
SECTION("boolean_t")
{
json::boolean_t b = j.get<json::boolean_t>();
CHECK(json(b) == j);
}
SECTION("bool")
{
bool b = j.get<bool>();
CHECK(json(b) == j);
}
SECTION("exception in case of a non-string type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::object).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::array).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::string).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_unsigned).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::boolean_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is null");
CHECK_THROWS_WITH(json(json::value_t::object).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is object");
CHECK_THROWS_WITH(json(json::value_t::array).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is array");
CHECK_THROWS_WITH(json(json::value_t::string).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is string");
CHECK_THROWS_WITH(json(json::value_t::number_integer).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_unsigned).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is number");
CHECK_THROWS_WITH(json(json::value_t::number_float).get<json::boolean_t>(),
"[json.exception.type_error.302] type must be boolean, but is number");
}
}
SECTION("get a boolean (implicit)")
{
json::boolean_t b_reference {true};
json j(b_reference);
SECTION("boolean_t")
{
json::boolean_t b = j;
CHECK(json(b) == j);
}
SECTION("bool")
{
bool b = j;
CHECK(json(b) == j);
}
}
SECTION("get an integer number (explicit)")
{
json::number_integer_t n_reference {42};
json j(n_reference);
json::number_unsigned_t n_unsigned_reference {42u};
json j_unsigned(n_unsigned_reference);
SECTION("number_integer_t")
{
json::number_integer_t n = j.get<json::number_integer_t>();
CHECK(json(n) == j);
}
SECTION("number_unsigned_t")
{
json::number_unsigned_t n = j_unsigned.get<json::number_unsigned_t>();
CHECK(json(n) == j_unsigned);
}
SECTION("short")
{
short n = j.get<short>();
CHECK(json(n) == j);
}
SECTION("unsigned short")
{
unsigned short n = j.get<unsigned short>();
CHECK(json(n) == j);
}
SECTION("int")
{
int n = j.get<int>();
CHECK(json(n) == j);
}
SECTION("unsigned int")
{
unsigned int n = j.get<unsigned int>();
CHECK(json(n) == j);
}
SECTION("long")
{
long n = j.get<long>();
CHECK(json(n) == j);
}
SECTION("unsigned long")
{
unsigned long n = j.get<unsigned long>();
CHECK(json(n) == j);
}
SECTION("long long")
{
long long n = j.get<long long>();
CHECK(json(n) == j);
}
SECTION("unsigned long long")
{
unsigned long long n = j.get<unsigned long long>();
CHECK(json(n) == j);
}
SECTION("int8_t")
{
int8_t n = j.get<int8_t>();
CHECK(json(n) == j);
}
SECTION("int16_t")
{
int16_t n = j.get<int16_t>();
CHECK(json(n) == j);
}
SECTION("int32_t")
{
int32_t n = j.get<int32_t>();
CHECK(json(n) == j);
}
SECTION("int64_t")
{
int64_t n = j.get<int64_t>();
CHECK(json(n) == j);
}
SECTION("int8_fast_t")
{
int_fast8_t n = j.get<int_fast8_t>();
CHECK(json(n) == j);
}
SECTION("int16_fast_t")
{
int_fast16_t n = j.get<int_fast16_t>();
CHECK(json(n) == j);
}
SECTION("int32_fast_t")
{
int_fast32_t n = j.get<int_fast32_t>();
CHECK(json(n) == j);
}
SECTION("int64_fast_t")
{
int_fast64_t n = j.get<int_fast64_t>();
CHECK(json(n) == j);
}
SECTION("int8_least_t")
{
int_least8_t n = j.get<int_least8_t>();
CHECK(json(n) == j);
}
SECTION("int16_least_t")
{
int_least16_t n = j.get<int_least16_t>();
CHECK(json(n) == j);
}
SECTION("int32_least_t")
{
int_least32_t n = j.get<int_least32_t>();
CHECK(json(n) == j);
}
SECTION("int64_least_t")
{
int_least64_t n = j.get<int_least64_t>();
CHECK(json(n) == j);
}
SECTION("uint8_t")
{
uint8_t n = j.get<uint8_t>();
CHECK(json(n) == j);
}
SECTION("uint16_t")
{
uint16_t n = j.get<uint16_t>();
CHECK(json(n) == j);
}
SECTION("uint32_t")
{
uint32_t n = j.get<uint32_t>();
CHECK(json(n) == j);
}
SECTION("uint64_t")
{
uint64_t n = j.get<uint64_t>();
CHECK(json(n) == j);
}
SECTION("uint8_fast_t")
{
uint_fast8_t n = j.get<uint_fast8_t>();
CHECK(json(n) == j);
}
SECTION("uint16_fast_t")
{
uint_fast16_t n = j.get<uint_fast16_t>();
CHECK(json(n) == j);
}
SECTION("uint32_fast_t")
{
uint_fast32_t n = j.get<uint_fast32_t>();
CHECK(json(n) == j);
}
SECTION("uint64_fast_t")
{
uint_fast64_t n = j.get<uint_fast64_t>();
CHECK(json(n) == j);
}
SECTION("uint8_least_t")
{
uint_least8_t n = j.get<uint_least8_t>();
CHECK(json(n) == j);
}
SECTION("uint16_least_t")
{
uint_least16_t n = j.get<uint_least16_t>();
CHECK(json(n) == j);
}
SECTION("uint32_least_t")
{
uint_least32_t n = j.get<uint_least32_t>();
CHECK(json(n) == j);
}
SECTION("uint64_least_t")
{
uint_least64_t n = j.get<uint_least64_t>();
CHECK(json(n) == j);
}
SECTION("exception in case of a non-number type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::number_integer_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::object).get<json::number_integer_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::array).get<json::number_integer_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::string).get<json::number_integer_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::number_integer_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<json::number_integer_t>(),
"[json.exception.type_error.302] type must be number, but is null");
CHECK_THROWS_WITH(json(json::value_t::object).get<json::number_integer_t>(),
"[json.exception.type_error.302] type must be number, but is object");
CHECK_THROWS_WITH(json(json::value_t::array).get<json::number_integer_t>(),
"[json.exception.type_error.302] type must be number, but is array");
CHECK_THROWS_WITH(json(json::value_t::string).get<json::number_integer_t>(),
"[json.exception.type_error.302] type must be number, but is string");
CHECK_THROWS_WITH(json(json::value_t::boolean).get<json::number_integer_t>(),
"[json.exception.type_error.302] type must be number, but is boolean");
CHECK_NOTHROW(json(json::value_t::number_float).get<json::number_integer_t>());
CHECK_NOTHROW(json(json::value_t::number_float).get<json::number_unsigned_t>());
}
}
SECTION("get an integer number (implicit)")
{
json::number_integer_t n_reference {42};
json j(n_reference);
json::number_unsigned_t n_unsigned_reference {42u};
json j_unsigned(n_unsigned_reference);
SECTION("number_integer_t")
{
json::number_integer_t n = j.get<json::number_integer_t>();
CHECK(json(n) == j);
}
SECTION("number_unsigned_t")
{
json::number_unsigned_t n = j_unsigned.get<json::number_unsigned_t>();
CHECK(json(n) == j_unsigned);
}
SECTION("short")
{
short n = j;
CHECK(json(n) == j);
}
SECTION("unsigned short")
{
unsigned short n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("int")
{
int n = j;
CHECK(json(n) == j);
}
SECTION("unsigned int")
{
unsigned int n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("long")
{
long n = j;
CHECK(json(n) == j);
}
SECTION("unsigned long")
{
unsigned long n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("long long")
{
long long n = j;
CHECK(json(n) == j);
}
SECTION("unsigned long long")
{
unsigned long long n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("int8_t")
{
int8_t n = j;
CHECK(json(n) == j);
}
SECTION("int16_t")
{
int16_t n = j;
CHECK(json(n) == j);
}
SECTION("int32_t")
{
int32_t n = j;
CHECK(json(n) == j);
}
SECTION("int64_t")
{
int64_t n = j;
CHECK(json(n) == j);
}
SECTION("int8_fast_t")
{
int_fast8_t n = j;
CHECK(json(n) == j);
}
SECTION("int16_fast_t")
{
int_fast16_t n = j;
CHECK(json(n) == j);
}
SECTION("int32_fast_t")
{
int_fast32_t n = j;
CHECK(json(n) == j);
}
SECTION("int64_fast_t")
{
int_fast64_t n = j;
CHECK(json(n) == j);
}
SECTION("int8_least_t")
{
int_least8_t n = j;
CHECK(json(n) == j);
}
SECTION("int16_least_t")
{
int_least16_t n = j;
CHECK(json(n) == j);
}
SECTION("int32_least_t")
{
int_least32_t n = j;
CHECK(json(n) == j);
}
SECTION("int64_least_t")
{
int_least64_t n = j;
CHECK(json(n) == j);
}
SECTION("uint8_t")
{
uint8_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint16_t")
{
uint16_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint32_t")
{
uint32_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint64_t")
{
uint64_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint8_fast_t")
{
uint_fast8_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint16_fast_t")
{
uint_fast16_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint32_fast_t")
{
uint_fast32_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint64_fast_t")
{
uint_fast64_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint8_least_t")
{
uint_least8_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint16_least_t")
{
uint_least16_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint32_least_t")
{
uint_least32_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
SECTION("uint64_least_t")
{
uint_least64_t n = j_unsigned;
CHECK(json(n) == j_unsigned);
}
}
SECTION("get a floating-point number (explicit)")
{
json::number_float_t n_reference {42.23};
json j(n_reference);
SECTION("number_float_t")
{
json::number_float_t n = j.get<json::number_float_t>();
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
SECTION("float")
{
float n = j.get<float>();
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
SECTION("double")
{
double n = j.get<double>();
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
SECTION("exception in case of a non-string type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::number_float_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::object).get<json::number_float_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::array).get<json::number_float_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::string).get<json::number_float_t>(), json::type_error&);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::number_float_t>(), json::type_error&);
CHECK_THROWS_WITH(json(json::value_t::null).get<json::number_float_t>(),
"[json.exception.type_error.302] type must be number, but is null");
CHECK_THROWS_WITH(json(json::value_t::object).get<json::number_float_t>(),
"[json.exception.type_error.302] type must be number, but is object");
CHECK_THROWS_WITH(json(json::value_t::array).get<json::number_float_t>(),
"[json.exception.type_error.302] type must be number, but is array");
CHECK_THROWS_WITH(json(json::value_t::string).get<json::number_float_t>(),
"[json.exception.type_error.302] type must be number, but is string");
CHECK_THROWS_WITH(json(json::value_t::boolean).get<json::number_float_t>(),
"[json.exception.type_error.302] type must be number, but is boolean");
CHECK_NOTHROW(json(json::value_t::number_integer).get<json::number_float_t>());
CHECK_NOTHROW(json(json::value_t::number_unsigned).get<json::number_float_t>());
}
}
SECTION("get a floating-point number (implicit)")
{
json::number_float_t n_reference {42.23};
json j(n_reference);
SECTION("number_float_t")
{
json::number_float_t n = j;
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
SECTION("float")
{
float n = j;
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
SECTION("double")
{
double n = j;
CHECK(json(n).m_value.number_float == Approx(j.m_value.number_float));
}
}
SECTION("get an enum")
{
enum c_enum { value_1, value_2 };
enum class cpp_enum { value_1, value_2 };
CHECK(json(value_1).get<c_enum>() == value_1);
CHECK(json(cpp_enum::value_1).get<cpp_enum>() == cpp_enum::value_1);
}
SECTION("more involved conversions")
{
SECTION("object-like STL containers")
{
json j1 = {{"one", 1}, {"two", 2}, {"three", 3}};
json j2 = {{"one", 1u}, {"two", 2u}, {"three", 3u}};
json j3 = {{"one", 1.1}, {"two", 2.2}, {"three", 3.3}};
json j4 = {{"one", true}, {"two", false}, {"three", true}};
json j5 = {{"one", "eins"}, {"two", "zwei"}, {"three", "drei"}};
SECTION("std::map")
{
j1.get<std::map<std::string, int>>();
j2.get<std::map<std::string, unsigned int>>();
j3.get<std::map<std::string, double>>();
j4.get<std::map<std::string, bool>>();
j5.get<std::map<std::string, std::string>>();
}
SECTION("std::unordered_map")
{
j1.get<std::unordered_map<std::string, int>>();
j2.get<std::unordered_map<std::string, unsigned int>>();
j3.get<std::unordered_map<std::string, double>>();
j4.get<std::unordered_map<std::string, bool>>();
j5.get<std::unordered_map<std::string, std::string>>();
//CHECK(m5["one"] == "eins");
}
SECTION("std::multimap")
{
j1.get<std::multimap<std::string, int>>();
j2.get<std::multimap<std::string, unsigned int>>();
j3.get<std::multimap<std::string, double>>();
j4.get<std::multimap<std::string, bool>>();
j5.get<std::multimap<std::string, std::string>>();
//CHECK(m5["one"] == "eins");
}
SECTION("std::unordered_multimap")
{
j1.get<std::unordered_multimap<std::string, int>>();
j2.get<std::unordered_multimap<std::string, unsigned int>>();
j3.get<std::unordered_multimap<std::string, double>>();
j4.get<std::unordered_multimap<std::string, bool>>();
j5.get<std::unordered_multimap<std::string, std::string>>();
//CHECK(m5["one"] == "eins");
}
SECTION("exception in case of a non-object type")
{
CHECK_THROWS_AS((json().get<std::map<std::string, int>>()), json::type_error&);
CHECK_THROWS_WITH((json().get<std::map<std::string, int>>()), "[json.exception.type_error.302] type must be object, but is null");
}
}
SECTION("array-like STL containers")
{
json j1 = {1, 2, 3, 4};
json j2 = {1u, 2u, 3u, 4u};
json j3 = {1.2, 2.3, 3.4, 4.5};
json j4 = {true, false, true};
json j5 = {"one", "two", "three"};
SECTION("std::list")
{
j1.get<std::list<int>>();
j2.get<std::list<unsigned int>>();
j3.get<std::list<double>>();
j4.get<std::list<bool>>();
j5.get<std::list<std::string>>();
}
SECTION("std::forward_list")
{
j1.get<std::forward_list<int>>();
j2.get<std::forward_list<unsigned int>>();
j3.get<std::forward_list<double>>();
j4.get<std::forward_list<bool>>();
j5.get<std::forward_list<std::string>>();
}
SECTION("std::array")
{
j1.get<std::array<int, 4>>();
j2.get<std::array<unsigned int, 3>>();
j3.get<std::array<double, 4>>();
j4.get<std::array<bool, 3>>();
j5.get<std::array<std::string, 3>>();
SECTION("std::array is larger than JSON")
{
std::array<int, 6> arr6 = {{1, 2, 3, 4, 5, 6}};
CHECK_THROWS_AS(arr6 = j1, json::out_of_range&);
CHECK_THROWS_WITH(arr6 = j1, "[json.exception.out_of_range.401] array index 4 is out of range");
}
SECTION("std::array is smaller than JSON")
{
std::array<int, 2> arr2 = {{8, 9}};
arr2 = j1;
CHECK(arr2[0] == 1);
CHECK(arr2[1] == 2);
}
}
SECTION("std::valarray")
{
j1.get<std::valarray<int>>();
j2.get<std::valarray<unsigned int>>();
j3.get<std::valarray<double>>();
j4.get<std::valarray<bool>>();
j5.get<std::valarray<std::string>>();
}
SECTION("std::vector")
{
j1.get<std::vector<int>>();
j2.get<std::vector<unsigned int>>();
j3.get<std::vector<double>>();
j4.get<std::vector<bool>>();
j5.get<std::vector<std::string>>();
}
SECTION("std::deque")
{
j1.get<std::deque<int>>();
j2.get<std::deque<unsigned int>>();
j2.get<std::deque<double>>();
j4.get<std::deque<bool>>();
j5.get<std::deque<std::string>>();
}
SECTION("std::set")
{
j1.get<std::set<int>>();
j2.get<std::set<unsigned int>>();
j3.get<std::set<double>>();
j4.get<std::set<bool>>();
j5.get<std::set<std::string>>();
}
SECTION("std::unordered_set")
{
j1.get<std::unordered_set<int>>();
j2.get<std::unordered_set<unsigned int>>();
j3.get<std::unordered_set<double>>();
j4.get<std::unordered_set<bool>>();
j5.get<std::unordered_set<std::string>>();
}
SECTION("exception in case of a non-object type")
{
CHECK_THROWS_AS((json().get<std::list<int>>()), json::type_error&);
CHECK_THROWS_AS((json().get<std::vector<int>>()), json::type_error&);
CHECK_THROWS_AS((json().get<std::vector<json>>()), json::type_error&);
CHECK_THROWS_AS((json().get<std::list<json>>()), json::type_error&);
CHECK_THROWS_AS((json().get<std::valarray<int>>()), json::type_error&);
// does type really must be an array? or it rather must not be null?
// that's what I thought when other test like this one broke
CHECK_THROWS_WITH((json().get<std::list<int>>()), "[json.exception.type_error.302] type must be array, but is null");
CHECK_THROWS_WITH((json().get<std::vector<int>>()), "[json.exception.type_error.302] type must be array, but is null");
CHECK_THROWS_WITH((json().get<std::vector<json>>()), "[json.exception.type_error.302] type must be array, but is null");
CHECK_THROWS_WITH((json().get<std::list<json>>()), "[json.exception.type_error.302] type must be array, but is null");
CHECK_THROWS_WITH((json().get<std::valarray<int>>()), "[json.exception.type_error.302] type must be array, but is null");
}
}
}
}
Reference in a new issue View git blame Copy permalink