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mirror of https://github.com/nlohmann/json synced 2024-12-02 08:20:11 +00:00
nlohmannjson/test/unit.cpp
2015-02-04 22:49:46 +01:00

2472 lines
65 KiB
C++

#define CATCH_CONFIG_MAIN
#include "catch.hpp"
#include "json.hpp"
#include <unordered_map>
#include <list>
#include <sstream>
using nlohmann::json;
TEST_CASE()
{
CHECK(json::escape_string("\\") == "\\\\");
CHECK(json::escape_string("\"") == "\\\"");
CHECK(json::escape_string("\n") == "\\n");
CHECK(json::escape_string("\r") == "\\r");
CHECK(json::escape_string("\f") == "\\f");
CHECK(json::escape_string("\b") == "\\b");
CHECK(json::escape_string("\t") == "\\t");
{
json j = "AC/DC";
CHECK(j.dump() == "\"AC/DC\"");
}
{
json j = {1, 2, 3, 4};
std::cerr << j << std::endl;
}
{
json j = {{}};
std::cerr << j << std::endl;
}
{
json j = {{"foo", nullptr}};
std::cerr << j << std::endl;
}
{
json j =
{
{"pi", 3.141},
{"happy", true},
{"name", "Niels"},
{"nothing", nullptr},
{
"answer", {
{"everything", 42}
}
},
{"list", {1, 0, 2}},
{
"object", {
{"currency", "USD"},
{"value", 42.99}
}
}
};
std::cerr << j.dump(4) << std::endl;
j["pi"] = {3, 1, 4, 1};
std::cerr << j << std::endl;
}
{
// ways to express the empty array []
json empty_array_implicit = {{}};
std::cerr << "empty_array_implicit: " << empty_array_implicit << std::endl;
json empty_array_explicit = json::array();
std::cerr << "empty_array_explicit: " << empty_array_explicit << std::endl;
// a way to express the empty object {}
json empty_object_explicit = json::object();
std::cerr << "empty_object_explicit: " << empty_object_explicit << std::endl;
// a way to express an _array_ of key/value pairs [["currency", "USD"], ["value", 42.99]]
json array_not_object = { json::array({"currency", "USD"}), json::array({"value", 42.99}) };
std::cerr << "array_not_object: " << array_not_object << std::endl;
}
{
CHECK_THROWS_AS(json::object({1, 2, 3}), std::logic_error);
}
{
CHECK(json::object({{"foo", 1}, {"bar", 2}, {"baz", 3}}).size() == 3);
CHECK(json::object({{"foo", 1}}).size() == 1);
CHECK(json::object().size() == 0);
}
{
json j = json::object({{"foo", 1}, {"bar", 2}, {"baz", 3}});
{
CHECK(j["foo"] == json(1));
CHECK(j.at("foo") == json(1));
}
{
std::map<std::string, json> m = j;
auto k = j.get<std::map<std::string, json>>();
CHECK(m == k);
}
{
std::unordered_map<std::string, json> m = j;
auto k = j.get<std::unordered_map<std::string, json>>();
CHECK(m == k);
}
}
{
json j = {1, 2, 3, 4, 5};
{
CHECK(j[0] == json(1));
CHECK(j.at(0) == json(1));
}
{
std::vector<json> m = j;
auto k = j.get<std::list<json>>();
CHECK(m == k);
}
{
std::set<json> m = j;
auto k = j.get<std::set<json>>();
CHECK(m == k);
}
}
}
TEST_CASE("null")
{
SECTION("constructors")
{
SECTION("no arguments")
{
{
json j;
CHECK(j.m_type == json::value_t::null);
}
{
json j{};
CHECK(j.m_type == json::value_t::null);
}
}
SECTION("nullptr_t argument")
{
{
json j(nullptr);
CHECK(j.m_type == json::value_t::null);
}
}
SECTION("value_t::null argument")
{
{
json j(json::value_t::null);
CHECK(j.m_type == json::value_t::null);
}
}
SECTION("copy constructor")
{
{
json other;
json j(other);
CHECK(j.m_type == json::value_t::null);
}
{
json j = nullptr;
CHECK(j.m_type == json::value_t::null);
}
}
SECTION("move constructor")
{
{
json other;
json j(std::move(other));
CHECK(j.m_type == json::value_t::null);
CHECK(other.m_type == json::value_t::null);
}
}
SECTION("copy assignment")
{
{
json other;
json j = other;
CHECK(j.m_type == json::value_t::null);
}
}
}
SECTION("object inspection")
{
json j;
SECTION("dump()")
{
CHECK(j.dump() == "null");
CHECK(j.dump(-1) == "null");
CHECK(j.dump(4) == "null");
}
SECTION("type()")
{
CHECK(j.type() == j.m_type);
}
SECTION("operator value_t()")
{
json::value_t t = j;
CHECK(t == j.m_type);
}
}
SECTION("value conversion")
{
json j;
SECTION("get()/operator() for objects")
{
CHECK_THROWS_AS(auto o = j.get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json::object_t o = j, std::logic_error);
}
SECTION("get()/operator() for arrays")
{
CHECK_THROWS_AS(auto o = j.get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json::array_t o = j, std::logic_error);
}
SECTION("get()/operator() for strings")
{
CHECK_THROWS_AS(auto o = j.get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json::string_t o = j, std::logic_error);
}
SECTION("get()/operator() for booleans")
{
CHECK_THROWS_AS(auto o = j.get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json::boolean_t o = j, std::logic_error);
}
SECTION("get()/operator() for integer numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_integer_t o = j, std::logic_error);
}
SECTION("get()/operator() for floating point numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_float_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_float_t o = j, std::logic_error);
}
}
SECTION("element access")
{
json j;
const json jc;
SECTION("operator[size_type]")
{
CHECK_THROWS_AS(auto o = j[0], std::runtime_error);
CHECK_THROWS_AS(auto o = jc[0], std::runtime_error);
}
SECTION("at(size_type)")
{
CHECK_THROWS_AS(auto o = j.at(0), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(0), std::runtime_error);
}
SECTION("operator[object_t::key_type]")
{
CHECK_THROWS_AS(j["key"], std::runtime_error);
CHECK_THROWS_AS(j[std::string("key")], std::runtime_error);
}
SECTION("at(object_t::key_type)")
{
CHECK_THROWS_AS(auto o = j.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = j.at(std::string("key")), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(std::string("key")), std::runtime_error);
}
}
SECTION("iterators")
{
json j;
const json jc;
SECTION("begin()")
{
{
json::iterator it = j.begin();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.begin();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cbegin()")
{
{
json::const_iterator it = j.cbegin();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cbegin();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cbegin()
CHECK(const_cast<json::const_reference>(j).begin() == j.cbegin());
CHECK(const_cast<json::const_reference>(jc).begin() == jc.cbegin());
}
}
SECTION("end()")
{
{
json::iterator it = j.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cend()")
{
{
json::const_iterator it = j.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cend()
CHECK(const_cast<json::const_reference>(j).end() == j.cend());
CHECK(const_cast<json::const_reference>(jc).end() == jc.cend());
}
}
}
SECTION("capacity")
{
json j;
const json jc;
SECTION("empty()")
{
// null values are empty
CHECK(j.empty());
CHECK(jc.empty());
// check semantics definition of empty()
CHECK(j.begin() == j.end());
CHECK(j.cbegin() == j.cend());
}
SECTION("size()")
{
// null values have size 0
CHECK(j.size() == 0);
CHECK(jc.size() == 0);
// check semantics definition of size()
CHECK(std::distance(j.begin(), j.end()) == 0);
CHECK(std::distance(j.cbegin(), j.cend()) == 0);
}
SECTION("max_size()")
{
// null values have max_size 0
CHECK(j.max_size() == 0);
CHECK(jc.max_size() == 0);
}
}
SECTION("modifiers")
{
json j;
SECTION("clear()")
{
j.clear();
CHECK(j.empty());
}
SECTION("push_back")
{
SECTION("const json&")
{
const json v;
j.push_back(v);
CHECK(j.type() == json::value_t::array);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
SECTION("json&&")
{
j.push_back(nullptr);
CHECK(j.type() == json::value_t::array);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", nullptr };
j.push_back(v);
CHECK(j.type() == json::value_t::object);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
}
SECTION("emplace_back")
{
j.emplace_back(nullptr);
CHECK(j.type() == json::value_t::array);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
/*
SECTION("operator+=")
{
SECTION("const json&")
{
const json v;
j += v;
CHECK(j.type() == json::value_t::array);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
SECTION("json&&")
{
j += nullptr;
CHECK(j.type() == json::value_t::array);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", nullptr };
j += v;
CHECK(j.type() == json::value_t::object);
CHECK(j.empty() == false);
CHECK(j.size() == 1);
CHECK(j.max_size() >= 1);
}
}
*/
SECTION("swap")
{
SECTION("array_t&")
{
json::array_t other = {nullptr, nullptr, nullptr};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("object_t&")
{
json::object_t other = {{"key1", nullptr}, {"key2", nullptr}};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("string_t&")
{
json::string_t other = "string";
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
}
}
SECTION("lexicographical comparison operators")
{
json j1, j2;
CHECK(j1 == j2);
CHECK(not(j1 != j2));
CHECK(not(j1 < j2));
CHECK(j1 <= j2);
CHECK(not(j1 > j2));
CHECK(j1 >= j2);
}
SECTION("serialization")
{
json j;
SECTION("operator<<")
{
std::stringstream s;
s << j;
CHECK(s.str() == "null");
}
SECTION("operator>>")
{
std::stringstream s;
j >> s;
CHECK(s.str() == "null");
}
}
SECTION("convenience functions")
{
json j;
SECTION("type_name")
{
CHECK(j.type_name() == "null");
}
}
SECTION("nonmember functions")
{
json j1, j2;
SECTION("swap")
{
std::swap(j1, j2);
}
SECTION("hash")
{
std::hash<json> hash_fn;
auto h1 = hash_fn(j1);
auto h2 = hash_fn(j2);
CHECK(h1 == h2);
}
}
}
TEST_CASE("boolean")
{
SECTION("constructors")
{
SECTION("booleant_t argument")
{
{
json j(true);
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == true);
}
{
json j(false);
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == false);
}
}
SECTION("value_t::boolean argument")
{
{
json j(json::value_t::boolean);
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == false);
}
}
SECTION("copy constructor")
{
{
json other(true);
json j(other);
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == true);
}
{
json other(false);
json j(other);
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == false);
}
{
json j = true;
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == true);
}
{
json j = false;
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == false);
}
}
SECTION("move constructor")
{
{
json other = true;
json j(std::move(other));
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == true);
CHECK(other.m_type == json::value_t::null);
}
}
SECTION("copy assignment")
{
{
json other = true;
json j = other;
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == true);
}
{
json other = false;
json j = other;
CHECK(j.m_type == json::value_t::boolean);
CHECK(j.m_value.boolean == false);
}
}
}
SECTION("object inspection")
{
json jt = true;
json jf = false;
SECTION("dump()")
{
CHECK(jt.dump() == "true");
CHECK(jt.dump(-1) == "true");
CHECK(jt.dump(4) == "true");
CHECK(jf.dump() == "false");
CHECK(jf.dump(-1) == "false");
CHECK(jf.dump(4) == "false");
}
SECTION("type()")
{
CHECK(jt.type() == jt.m_type);
CHECK(jf.type() == jf.m_type);
}
SECTION("operator value_t()")
{
{
json::value_t t = jt;
CHECK(t == jt.m_type);
}
{
json::value_t t = jf;
CHECK(t == jf.m_type);
}
}
}
SECTION("value conversion")
{
json j = true;
SECTION("get()/operator() for objects")
{
CHECK_THROWS_AS(auto o = j.get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json::object_t o = j, std::logic_error);
}
SECTION("get()/operator() for arrays")
{
CHECK_THROWS_AS(auto o = j.get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json::array_t o = j, std::logic_error);
}
SECTION("get()/operator() for strings")
{
CHECK_THROWS_AS(auto o = j.get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json::string_t o = j, std::logic_error);
}
SECTION("get()/operator() for booleans")
{
{
auto o = j.get<json::boolean_t>();
CHECK(o == true);
}
{
json::boolean_t o = j;
CHECK(o == true);
}
}
SECTION("get()/operator() for integer numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_integer_t o = j, std::logic_error);
}
SECTION("get()/operator() for floating point numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_float_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_float_t o = j, std::logic_error);
}
}
SECTION("element access")
{
json j = true;
const json jc = false;
SECTION("operator[size_type]")
{
CHECK_THROWS_AS(auto o = j[0], std::runtime_error);
CHECK_THROWS_AS(auto o = jc[0], std::runtime_error);
}
SECTION("at(size_type)")
{
CHECK_THROWS_AS(auto o = j.at(0), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(0), std::runtime_error);
}
SECTION("operator[object_t::key_type]")
{
CHECK_THROWS_AS(j["key"], std::runtime_error);
CHECK_THROWS_AS(j[std::string("key")], std::runtime_error);
}
SECTION("at(object_t::key_type)")
{
CHECK_THROWS_AS(auto o = j.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = j.at(std::string("key")), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(std::string("key")), std::runtime_error);
}
}
SECTION("iterators")
{
json j = true;
const json jc = false;
SECTION("begin()")
{
{
json::iterator it = j.begin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.begin();
CHECK(*it == jc);
}
}
SECTION("cbegin()")
{
{
json::const_iterator it = j.cbegin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.cbegin();
CHECK(*it == jc);
}
{
// check semantics definition of cbegin()
CHECK(const_cast<json::const_reference>(j).begin() == j.cbegin());
CHECK(const_cast<json::const_reference>(jc).begin() == jc.cbegin());
}
}
SECTION("end()")
{
{
json::iterator it = j.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cend()")
{
{
json::const_iterator it = j.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cend()
CHECK(const_cast<json::const_reference>(j).end() == j.cend());
CHECK(const_cast<json::const_reference>(jc).end() == jc.cend());
}
}
}
SECTION("capacity")
{
json j = true;
const json jc = false;
SECTION("empty()")
{
// null values are empty
CHECK(not j.empty());
CHECK(not jc.empty());
// check semantics definition of empty()
CHECK(j.begin() != j.end());
CHECK(j.cbegin() != j.cend());
}
SECTION("size()")
{
// boolean values have size 1
CHECK(j.size() == 1);
CHECK(jc.size() == 1);
// check semantics definition of size()
CHECK(std::distance(j.begin(), j.end()) == 1);
CHECK(std::distance(j.cbegin(), j.cend()) == 1);
}
SECTION("max_size()")
{
// null values have max_size 0
CHECK(j.max_size() == 1);
CHECK(jc.max_size() == 1);
}
}
SECTION("modifiers")
{
json j = true;
SECTION("clear()")
{
j.clear();
CHECK(not j.empty());
CHECK(j.m_value.boolean == false);
}
SECTION("push_back")
{
SECTION("const json&")
{
const json v = true;
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j.push_back(false), std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", true };
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
}
SECTION("emplace_back")
{
CHECK_THROWS_AS(j.emplace_back(true), std::runtime_error);
}
/*
SECTION("operator+=")
{
SECTION("const json&")
{
const json v = true;
CHECK_THROWS_AS(j += v, std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j += true, std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", true };
CHECK_THROWS_AS(j += v, std::runtime_error);
}
}
*/
SECTION("swap")
{
SECTION("array_t&")
{
json::array_t other = {true, false};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("object_t&")
{
json::object_t other = {{"key1", true}, {"key2", false}};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("string_t&")
{
json::string_t other = "string";
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
}
}
SECTION("lexicographical comparison operators")
{
json j1 = true;
json j2 = false;
CHECK(j1 == j1);
CHECK(not(j1 != j1));
CHECK(not(j1 < j1));
CHECK(j1 <= j1);
CHECK(not(j1 > j1));
CHECK(j1 >= j1);
CHECK(j2 == j2);
CHECK(not(j2 != j2));
CHECK(not(j2 < j2));
CHECK(j2 <= j2);
CHECK(not(j2 > j2));
CHECK(j2 >= j2);
CHECK(not(j1 == j2));
CHECK(j1 != j2);
CHECK(not(j1 < j2));
CHECK(not(j1 <= j2));
CHECK(j1 > j2);
CHECK(j1 >= j2);
}
SECTION("serialization")
{
json j1 = true;
json j2 = false;
SECTION("operator<<")
{
std::stringstream s;
s << j1 << " " << j2;
CHECK(s.str() == "true false");
}
SECTION("operator>>")
{
std::stringstream s;
j1 >> s;
j2 >> s;
CHECK(s.str() == "truefalse");
}
}
SECTION("convenience functions")
{
json j = true;
SECTION("type_name")
{
CHECK(j.type_name() == "boolean");
}
}
SECTION("nonmember functions")
{
json j1 = true;
json j2 = false;
SECTION("swap")
{
std::swap(j1, j2);
CHECK(j1 == json(false));
CHECK(j2 == json(true));
}
SECTION("hash")
{
std::hash<json> hash_fn;
auto h1 = hash_fn(j1);
auto h2 = hash_fn(j2);
CHECK(h1 != h2);
}
}
}
TEST_CASE("number (integer)")
{
SECTION("constructors")
{
SECTION("number_integer_t argument")
{
{
json j(17);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 17);
}
{
json j(0);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 0);
}
{
json j(-42);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == -42);
}
}
SECTION("integer type argument")
{
{
int8_t v = -128;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
uint8_t v = 255;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
int16_t v = -32768;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
uint16_t v = 65535;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
int32_t v = -2147483648;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
uint32_t v = 4294967295;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
int64_t v = INT64_MIN;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
{
int64_t v = INT64_MAX;
json j(v);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == v);
}
}
SECTION("value_t::number_integer argument")
{
{
json j(json::value_t::number_integer);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 0);
}
}
SECTION("copy constructor")
{
{
json other(117);
json j(other);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 117);
}
{
json other(-49);
json j(other);
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == -49);
}
{
json j = 110;
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 110);
}
{
json j = 112;
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 112);
}
}
SECTION("move constructor")
{
{
json other = 7653434;
json j(std::move(other));
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 7653434);
CHECK(other.m_type == json::value_t::null);
}
}
SECTION("copy assignment")
{
{
json other = 333;
json j = other;
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 333);
}
{
json other = 555;
json j = other;
CHECK(j.m_type == json::value_t::number_integer);
CHECK(j.m_value.number_integer == 555);
}
}
}
SECTION("object inspection")
{
json jp = 4294967295;
json jn = -4294967295;
SECTION("dump()")
{
CHECK(jp.dump() == "4294967295");
CHECK(jn.dump(-1) == "-4294967295");
CHECK(jp.dump(4) == "4294967295");
CHECK(jn.dump() == "-4294967295");
CHECK(jp.dump(-1) == "4294967295");
CHECK(jn.dump(4) == "-4294967295");
}
SECTION("type()")
{
CHECK(jp.type() == jp.m_type);
CHECK(jn.type() == jn.m_type);
}
SECTION("operator value_t()")
{
{
json::value_t t = jp;
CHECK(t == jp.m_type);
}
{
json::value_t t = jn;
CHECK(t == jn.m_type);
}
}
}
SECTION("value conversion")
{
json j = 1003;
SECTION("get()/operator() for objects")
{
CHECK_THROWS_AS(auto o = j.get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json::object_t o = j, std::logic_error);
}
SECTION("get()/operator() for arrays")
{
CHECK_THROWS_AS(auto o = j.get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json::array_t o = j, std::logic_error);
}
SECTION("get()/operator() for strings")
{
CHECK_THROWS_AS(auto o = j.get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json::string_t o = j, std::logic_error);
}
SECTION("get()/operator() for booleans")
{
CHECK_THROWS_AS(auto o = j.get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json::boolean_t o = j, std::logic_error);
}
SECTION("get()/operator() for integer numbers")
{
{
auto o = j.get<json::number_integer_t>();
CHECK(o == 1003);
}
{
json::number_integer_t o = j;
CHECK(o == 1003);
}
}
SECTION("get()/operator() for floating point numbers")
{
{
auto o = j.get<json::number_float_t>();
CHECK(o == 1003);
}
{
json::number_float_t o = j;
CHECK(o == 1003);
}
}
}
SECTION("element access")
{
json j = 119;
const json jc = -65433;
SECTION("operator[size_type]")
{
CHECK_THROWS_AS(auto o = j[0], std::runtime_error);
CHECK_THROWS_AS(auto o = jc[0], std::runtime_error);
}
SECTION("at(size_type)")
{
CHECK_THROWS_AS(auto o = j.at(0), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(0), std::runtime_error);
}
SECTION("operator[object_t::key_type]")
{
CHECK_THROWS_AS(j["key"], std::runtime_error);
CHECK_THROWS_AS(j[std::string("key")], std::runtime_error);
}
SECTION("at(object_t::key_type)")
{
CHECK_THROWS_AS(auto o = j.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = j.at(std::string("key")), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(std::string("key")), std::runtime_error);
}
}
SECTION("iterators")
{
json j = 0;
const json jc = 666;
SECTION("begin()")
{
{
json::iterator it = j.begin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.begin();
CHECK(*it == jc);
}
}
SECTION("cbegin()")
{
{
json::const_iterator it = j.cbegin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.cbegin();
CHECK(*it == jc);
}
{
// check semantics definition of cbegin()
CHECK(const_cast<json::const_reference>(j).begin() == j.cbegin());
CHECK(const_cast<json::const_reference>(jc).begin() == jc.cbegin());
}
}
SECTION("end()")
{
{
json::iterator it = j.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cend()")
{
{
json::const_iterator it = j.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cend()
CHECK(const_cast<json::const_reference>(j).end() == j.cend());
CHECK(const_cast<json::const_reference>(jc).end() == jc.cend());
}
}
}
SECTION("capacity")
{
json j = 4344;
const json jc = -255;
SECTION("empty()")
{
// null values are empty
CHECK(not j.empty());
CHECK(not jc.empty());
// check semantics definition of empty()
CHECK(j.begin() != j.end());
CHECK(j.cbegin() != j.cend());
}
SECTION("size()")
{
// number values have size 1
CHECK(j.size() == 1);
CHECK(jc.size() == 1);
// check semantics definition of size()
CHECK(std::distance(j.begin(), j.end()) == 1);
CHECK(std::distance(j.cbegin(), j.cend()) == 1);
}
SECTION("max_size()")
{
// null values have max_size 0
CHECK(j.max_size() == 1);
CHECK(jc.max_size() == 1);
}
}
SECTION("modifiers")
{
json j = 1119;
SECTION("clear()")
{
j.clear();
CHECK(not j.empty());
CHECK(j.m_value.number_integer == 0);
}
SECTION("push_back")
{
SECTION("const json&")
{
const json v = 6;
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j.push_back(56), std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 12 };
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
}
SECTION("emplace_back")
{
CHECK_THROWS_AS(j.emplace_back(-42), std::runtime_error);
}
/*
SECTION("operator+=")
{
SECTION("const json&")
{
const json v = 8;
CHECK_THROWS_AS(j += v, std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j += 0, std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 42 };
CHECK_THROWS_AS(j += v, std::runtime_error);
}
}
*/
SECTION("swap")
{
SECTION("array_t&")
{
json::array_t other = {11, 2};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("object_t&")
{
json::object_t other = {{"key1", 4}, {"key2", 33}};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("string_t&")
{
json::string_t other = "string";
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
}
}
SECTION("lexicographical comparison operators")
{
json j1 = -100;
json j2 = 100;
CHECK(j1 == j1);
CHECK(not(j1 != j1));
CHECK(not(j1 < j1));
CHECK(j1 <= j1);
CHECK(not(j1 > j1));
CHECK(j1 >= j1);
CHECK(j2 == j2);
CHECK(not(j2 != j2));
CHECK(not(j2 < j2));
CHECK(j2 <= j2);
CHECK(not(j2 > j2));
CHECK(j2 >= j2);
CHECK(not(j1 == j2));
CHECK(j1 != j2);
CHECK(j1 < j2);
CHECK(j1 <= j2);
CHECK(not(j1 > j2));
CHECK(not(j1 >= j2));
}
SECTION("serialization")
{
json j1 = 42;
json j2 = 66;
SECTION("operator<<")
{
std::stringstream s;
s << j1 << " " << j2;
CHECK(s.str() == "42 66");
}
SECTION("operator>>")
{
std::stringstream s;
j1 >> s;
j2 >> s;
CHECK(s.str() == "4266");
}
}
SECTION("convenience functions")
{
json j = 2354;
SECTION("type_name")
{
CHECK(j.type_name() == "number");
}
}
SECTION("nonmember functions")
{
json j1 = 23;
json j2 = 32;
SECTION("swap")
{
std::swap(j1, j2);
CHECK(j1 == json(32));
CHECK(j2 == json(23));
}
SECTION("hash")
{
std::hash<json> hash_fn;
auto h1 = hash_fn(j1);
auto h2 = hash_fn(j2);
CHECK(h1 != h2);
}
}
}
TEST_CASE("number (floating point)")
{
SECTION("constructors")
{
SECTION("number_float_t argument")
{
{
json j(17.23);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 17.23);
}
{
json j(0.0);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 0.0);
}
{
json j(-42.1211);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == -42.1211);
}
}
SECTION("floating type argument")
{
{
float v = 3.14159265359;
json j(v);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == v);
}
{
double v = 2.71828182846;
json j(v);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == v);
}
{
long double v = 1.57079632679;
json j(v);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == v);
}
}
SECTION("value_t::number_float argument")
{
{
json j(json::value_t::number_float);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 0.0);
}
}
SECTION("copy constructor")
{
{
json other(117.1);
json j(other);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 117.1);
}
{
json other(-49.00);
json j(other);
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == -49.00);
}
{
json j = 110.22;
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 110.22);
}
{
json j = 112.5;
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 112.5);
}
}
SECTION("move constructor")
{
{
json other = 7653434.99999;
json j(std::move(other));
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 7653434.99999);
CHECK(other.m_type == json::value_t::null);
}
}
SECTION("copy assignment")
{
{
json other = 333.444;
json j = other;
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 333.444);
}
{
json other = 555.333;
json j = other;
CHECK(j.m_type == json::value_t::number_float);
CHECK(j.m_value.number_float == 555.333);
}
}
}
SECTION("object inspection")
{
json jp = 4294967295.333;
json jn = -4294967249.222;
SECTION("dump()")
{
CHECK(jp.dump() == "4294967295.333000");
CHECK(jn.dump(-1) == "-4294967249.222000");
CHECK(jp.dump(4) == "4294967295.333000");
CHECK(jn.dump() == "-4294967249.222000");
CHECK(jp.dump(-1) == "4294967295.333000");
CHECK(jn.dump(4) == "-4294967249.222000");
}
SECTION("type()")
{
CHECK(jp.type() == jp.m_type);
CHECK(jn.type() == jn.m_type);
}
SECTION("operator value_t()")
{
{
json::value_t t = jp;
CHECK(t == jp.m_type);
}
{
json::value_t t = jn;
CHECK(t == jn.m_type);
}
}
}
SECTION("value conversion")
{
json j = 10203.444344;
SECTION("get()/operator() for objects")
{
CHECK_THROWS_AS(auto o = j.get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json::object_t o = j, std::logic_error);
}
SECTION("get()/operator() for arrays")
{
CHECK_THROWS_AS(auto o = j.get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json::array_t o = j, std::logic_error);
}
SECTION("get()/operator() for strings")
{
CHECK_THROWS_AS(auto o = j.get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json::string_t o = j, std::logic_error);
}
SECTION("get()/operator() for booleans")
{
CHECK_THROWS_AS(auto o = j.get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json::boolean_t o = j, std::logic_error);
}
SECTION("get()/operator() for integer numbers")
{
{
auto o = j.get<json::number_integer_t>();
CHECK(o == 10203);
}
{
json::number_integer_t o = j;
CHECK(o == 10203);
}
}
SECTION("get()/operator() for floating point numbers")
{
{
auto o = j.get<json::number_float_t>();
CHECK(o == 10203.444344);
}
{
json::number_float_t o = j;
CHECK(o == 10203.444344);
}
}
}
SECTION("element access")
{
json j = 119.3333;
const json jc = -65433.55343;
SECTION("operator[size_type]")
{
CHECK_THROWS_AS(auto o = j[0], std::runtime_error);
CHECK_THROWS_AS(auto o = jc[0], std::runtime_error);
}
SECTION("at(size_type)")
{
CHECK_THROWS_AS(auto o = j.at(0), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(0), std::runtime_error);
}
SECTION("operator[object_t::key_type]")
{
CHECK_THROWS_AS(j["key"], std::runtime_error);
CHECK_THROWS_AS(j[std::string("key")], std::runtime_error);
}
SECTION("at(object_t::key_type)")
{
CHECK_THROWS_AS(auto o = j.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = j.at(std::string("key")), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(std::string("key")), std::runtime_error);
}
}
SECTION("iterators")
{
json j = 0.0;
const json jc = -666.22233322;
SECTION("begin()")
{
{
json::iterator it = j.begin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.begin();
CHECK(*it == jc);
}
}
SECTION("cbegin()")
{
{
json::const_iterator it = j.cbegin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.cbegin();
CHECK(*it == jc);
}
{
// check semantics definition of cbegin()
CHECK(const_cast<json::const_reference>(j).begin() == j.cbegin());
CHECK(const_cast<json::const_reference>(jc).begin() == jc.cbegin());
}
}
SECTION("end()")
{
{
json::iterator it = j.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cend()")
{
{
json::const_iterator it = j.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cend()
CHECK(const_cast<json::const_reference>(j).end() == j.cend());
CHECK(const_cast<json::const_reference>(jc).end() == jc.cend());
}
}
}
SECTION("capacity")
{
json j = 4344.0;
const json jc = -255.1;
SECTION("empty()")
{
// null values are empty
CHECK(not j.empty());
CHECK(not jc.empty());
// check semantics definition of empty()
CHECK(j.begin() != j.end());
CHECK(j.cbegin() != j.cend());
}
SECTION("size()")
{
// number values have size 1
CHECK(j.size() == 1);
CHECK(jc.size() == 1);
// check semantics definition of size()
CHECK(std::distance(j.begin(), j.end()) == 1);
CHECK(std::distance(j.cbegin(), j.cend()) == 1);
}
SECTION("max_size()")
{
// null values have max_size 0
CHECK(j.max_size() == 1);
CHECK(jc.max_size() == 1);
}
}
SECTION("modifiers")
{
json j = 1119.12;
SECTION("clear()")
{
j.clear();
CHECK(not j.empty());
CHECK(j.m_value.number_float == 0.0);
}
SECTION("push_back")
{
SECTION("const json&")
{
const json v = 6.2;
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j.push_back(56.11), std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 12.2 };
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
}
SECTION("emplace_back")
{
CHECK_THROWS_AS(j.emplace_back(-42.55), std::runtime_error);
}
/*
SECTION("operator+=")
{
SECTION("const json&")
{
const json v = 8.4;
CHECK_THROWS_AS(j += v, std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j += 0, std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 4.42 };
CHECK_THROWS_AS(j += v, std::runtime_error);
}
}
*/
SECTION("swap")
{
SECTION("array_t&")
{
json::array_t other = {11.2, 2.4};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("object_t&")
{
json::object_t other = {{"key1", 44.4}, {"key2", 23.2}};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("string_t&")
{
json::string_t other = "string";
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
}
}
SECTION("lexicographical comparison operators")
{
json j1 = -100.55;
json j2 = 100.4;
CHECK(j1 == j1);
CHECK(not(j1 != j1));
CHECK(not(j1 < j1));
CHECK(j1 <= j1);
CHECK(not(j1 > j1));
CHECK(j1 >= j1);
CHECK(j2 == j2);
CHECK(not(j2 != j2));
CHECK(not(j2 < j2));
CHECK(j2 <= j2);
CHECK(not(j2 > j2));
CHECK(j2 >= j2);
CHECK(not(j1 == j2));
CHECK(j1 != j2);
CHECK(j1 < j2);
CHECK(j1 <= j2);
CHECK(not(j1 > j2));
CHECK(not(j1 >= j2));
}
SECTION("serialization")
{
json j1 = 42.23;
json j2 = 66.66;
SECTION("operator<<")
{
std::stringstream s;
s << j1 << " " << j2;
auto res = s.str();
CHECK(res.find("42.23") != std::string::npos);
CHECK(res.find("66.66") != std::string::npos);
}
SECTION("operator>>")
{
std::stringstream s;
j1 >> s;
j2 >> s;
auto res = s.str();
CHECK(res.find("42.23") != std::string::npos);
CHECK(res.find("66.66") != std::string::npos);
}
}
SECTION("convenience functions")
{
json j = 2354.222;
SECTION("type_name")
{
CHECK(j.type_name() == "number");
}
}
SECTION("nonmember functions")
{
json j1 = 23.44;
json j2 = 32.44;
SECTION("swap")
{
std::swap(j1, j2);
CHECK(j1 == json(32.44));
CHECK(j2 == json(23.44));
}
SECTION("hash")
{
std::hash<json> hash_fn;
auto h1 = hash_fn(j1);
auto h2 = hash_fn(j2);
CHECK(h1 != h2);
}
}
}
TEST_CASE("string")
{
SECTION("constructors")
{
SECTION("string_t argument")
{
{
json j("hello");
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "hello");
}
{
json j("world");
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "world");
}
{
json j("this");
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "this");
}
}
SECTION("string type argument")
{
{
std::string v = "3.14159265359";
json j(v);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == v);
}
{
const char* v = "3.14159265359";
json j(v);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == v);
}
{
char v[14] = "3.14159265359";
json j(v);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == v);
}
{
const char v[14] = "3.14159265359";
json j(v);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == v);
}
}
SECTION("value_t::string argument")
{
{
json j(json::value_t::string);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "");
}
}
SECTION("copy constructor")
{
{
json other("foo");
json j(other);
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "foo");
}
{
json j = "baz";
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "baz");
}
}
SECTION("move constructor")
{
{
json other = "ß";
json j(std::move(other));
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "ß");
CHECK(other.m_type == json::value_t::null);
}
}
SECTION("copy assignment")
{
{
json other = "a string";
json j = other;
CHECK(j.m_type == json::value_t::string);
CHECK(*(j.m_value.string) == "a string");
}
}
}
SECTION("object inspection")
{
json j = "This is a string.";
SECTION("dump()")
{
CHECK(j.dump() == "\"This is a string.\"");
CHECK(j.dump(-1) == "\"This is a string.\"");
CHECK(j.dump(4) == "\"This is a string.\"");
}
SECTION("type()")
{
CHECK(j.type() == j.m_type);
}
SECTION("operator value_t()")
{
{
json::value_t t = j;
CHECK(t == j.m_type);
}
}
}
SECTION("value conversion")
{
json j = "another example string";
SECTION("get()/operator() for objects")
{
CHECK_THROWS_AS(auto o = j.get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json::object_t o = j, std::logic_error);
}
SECTION("get()/operator() for arrays")
{
CHECK_THROWS_AS(auto o = j.get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json::array_t o = j, std::logic_error);
}
SECTION("get()/operator() for strings")
{
{
auto o = j.get<json::string_t>();
CHECK(o == "another example string");
}
{
json::string_t o = j;
CHECK(o == "another example string");
}
}
SECTION("get()/operator() for booleans")
{
CHECK_THROWS_AS(auto o = j.get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json::boolean_t o = j, std::logic_error);
}
SECTION("get()/operator() for integer numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_integer_t o = j, std::logic_error);
}
SECTION("get()/operator() for floating point numbers")
{
CHECK_THROWS_AS(auto o = j.get<json::number_float_t>(), std::logic_error);
CHECK_THROWS_AS(json::number_float_t o = j, std::logic_error);
}
}
SECTION("element access")
{
json j = "!§$&/()=";
const json jc = "!§$&/()=";
SECTION("operator[size_type]")
{
CHECK_THROWS_AS(auto o = j[0], std::runtime_error);
CHECK_THROWS_AS(auto o = jc[0], std::runtime_error);
}
SECTION("at(size_type)")
{
CHECK_THROWS_AS(auto o = j.at(0), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(0), std::runtime_error);
}
SECTION("operator[object_t::key_type]")
{
CHECK_THROWS_AS(j["key"], std::runtime_error);
CHECK_THROWS_AS(j[std::string("key")], std::runtime_error);
}
SECTION("at(object_t::key_type)")
{
CHECK_THROWS_AS(auto o = j.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = j.at(std::string("key")), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at("key"), std::runtime_error);
CHECK_THROWS_AS(auto o = jc.at(std::string("key")), std::runtime_error);
}
}
SECTION("iterators")
{
json j = "@";
const json jc = "";
SECTION("begin()")
{
{
json::iterator it = j.begin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.begin();
CHECK(*it == jc);
}
}
SECTION("cbegin()")
{
{
json::const_iterator it = j.cbegin();
CHECK(*it == j);
}
{
json::const_iterator it = jc.cbegin();
CHECK(*it == jc);
}
{
// check semantics definition of cbegin()
CHECK(const_cast<json::const_reference>(j).begin() == j.cbegin());
CHECK(const_cast<json::const_reference>(jc).begin() == jc.cbegin());
}
}
SECTION("end()")
{
{
json::iterator it = j.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.end();
CHECK_THROWS_AS(*it, std::out_of_range);
}
}
SECTION("cend()")
{
{
json::const_iterator it = j.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
json::const_iterator it = jc.cend();
CHECK_THROWS_AS(*it, std::out_of_range);
}
{
// check semantics definition of cend()
CHECK(const_cast<json::const_reference>(j).end() == j.cend());
CHECK(const_cast<json::const_reference>(jc).end() == jc.cend());
}
}
}
SECTION("capacity")
{
json j = "Franz jagt im komplett verwahrlosten Taxi quer durch Bayern.";
const json jc = "The quick brown fox jumps over the lazy dog.";
SECTION("empty()")
{
// null values are empty
CHECK(not j.empty());
CHECK(not jc.empty());
// check semantics definition of empty()
CHECK(j.begin() != j.end());
CHECK(j.cbegin() != j.cend());
}
SECTION("size()")
{
// string values have size 1
CHECK(j.size() == 1);
CHECK(jc.size() == 1);
// check semantics definition of size()
CHECK(std::distance(j.begin(), j.end()) == 1);
CHECK(std::distance(j.cbegin(), j.cend()) == 1);
}
SECTION("max_size()")
{
// null values have max_size 0
CHECK(j.max_size() == 1);
CHECK(jc.max_size() == 1);
}
}
SECTION("modifiers")
{
json j = "YOLO";
SECTION("clear()")
{
j.clear();
CHECK(not j.empty());
CHECK(*(j.m_value.string) == "");
}
SECTION("push_back")
{
SECTION("const json&")
{
const json v = 6.2;
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j.push_back(56.11), std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 12.2 };
CHECK_THROWS_AS(j.push_back(v), std::runtime_error);
}
}
SECTION("emplace_back")
{
CHECK_THROWS_AS(j.emplace_back(-42.55), std::runtime_error);
}
/*
SECTION("operator+=")
{
SECTION("const json&")
{
const json v = 8.4;
CHECK_THROWS_AS(j += v, std::runtime_error);
}
SECTION("json&&")
{
CHECK_THROWS_AS(j += 0, std::runtime_error);
}
SECTION("object_t::value_type&")
{
json::object_t::value_type v { "foo", 4.42 };
CHECK_THROWS_AS(j += v, std::runtime_error);
}
}
*/
SECTION("swap")
{
SECTION("array_t&")
{
json::array_t other = {11.2, 2.4};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("object_t&")
{
json::object_t other = {{"key1", 44.4}, {"key2", 23.2}};
CHECK_THROWS_AS(j.swap(other), std::runtime_error);
}
SECTION("string_t&")
{
json::string_t other = "string";
j.swap(other);
CHECK(other == json("YOLO"));
CHECK(j == json("string"));
}
}
}
SECTION("lexicographical comparison operators")
{
json j1 = "Alpha";
json j2 = "Omega";
CHECK(j1 == j1);
CHECK(not(j1 != j1));
CHECK(not(j1 < j1));
CHECK(j1 <= j1);
CHECK(not(j1 > j1));
CHECK(j1 >= j1);
CHECK(j2 == j2);
CHECK(not(j2 != j2));
CHECK(not(j2 < j2));
CHECK(j2 <= j2);
CHECK(not(j2 > j2));
CHECK(j2 >= j2);
CHECK(not(j1 == j2));
CHECK(j1 != j2);
CHECK(j1 < j2);
CHECK(j1 <= j2);
CHECK(not(j1 > j2));
CHECK(not(j1 >= j2));
}
SECTION("serialization")
{
json j1 = "flip";
json j2 = "flop";
SECTION("operator<<")
{
std::stringstream s;
s << j1 << " " << j2;
CHECK(s.str() == "\"flip\" \"flop\"");
}
SECTION("operator>>")
{
std::stringstream s;
j1 >> s;
j2 >> s;
CHECK(s.str() == "\"flip\"\"flop\"");
}
}
SECTION("convenience functions")
{
json j = "I am a string, believe me!";
SECTION("type_name")
{
CHECK(j.type_name() == "string");
}
}
SECTION("nonmember functions")
{
json j1 = "A";
json j2 = "B";
SECTION("swap")
{
std::swap(j1, j2);
CHECK(j1 == json("B"));
CHECK(j2 == json("A"));
}
SECTION("hash")
{
std::hash<json> hash_fn;
auto h1 = hash_fn(j1);
auto h2 = hash_fn(j2);
CHECK(h1 != h2);
}
}
}