json/test/unit.cpp

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#define CATCH_CONFIG_MAIN
#include "catch.hpp"
#include "json.hpp"
using nlohmann::json;
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#include <array>
#include <deque>
#include <forward_list>
#include <list>
#include <map>
#include <set>
#include <string>
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#include <unordered_map>
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#include <unordered_set>
#include <vector>
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TEST_CASE("constructors")
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{
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SECTION("create an empty value with a given type")
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{
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SECTION("null")
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{
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auto t = json::value_t::null;
json j(t);
CHECK(j.type() == t);
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}
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SECTION("object")
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{
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auto t = json::value_t::object;
json j(t);
CHECK(j.type() == t);
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}
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SECTION("array")
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{
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auto t = json::value_t::array;
json j(t);
CHECK(j.type() == t);
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}
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SECTION("boolean")
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{
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auto t = json::value_t::boolean;
json j(t);
CHECK(j.type() == t);
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}
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SECTION("string")
{
auto t = json::value_t::string;
json j(t);
CHECK(j.type() == t);
}
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SECTION("number_integer")
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{
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auto t = json::value_t::number_integer;
json j(t);
CHECK(j.type() == t);
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}
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SECTION("number_float")
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{
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auto t = json::value_t::number_float;
json j(t);
CHECK(j.type() == t);
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}
}
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SECTION("create a null object (implicitly)")
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{
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SECTION("no parameter")
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{
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json j{};
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CHECK(j.type() == json::value_t::null);
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}
}
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SECTION("create a null object (explicitly)")
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{
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SECTION("parameter")
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{
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json j(nullptr);
CHECK(j.type() == json::value_t::null);
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}
}
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SECTION("create an object (explicit)")
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{
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SECTION("empty object")
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{
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json::object_t o;
json j(o);
CHECK(j.type() == json::value_t::object);
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}
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SECTION("filled object")
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{
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json::object_t o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
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}
}
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SECTION("create an object (implicit)")
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{
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// reference object
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json::object_t o_reference {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j_reference(o_reference);
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SECTION("std::map<std::string, json>")
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{
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std::map<std::string, json> o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
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}
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SECTION("std::map<const char*, json>")
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{
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std::map<const char*, json> o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
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}
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SECTION("std::multimap<std::string, json>")
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{
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std::multimap<std::string, json> o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
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}
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SECTION("std::unordered_map<std::string, json>")
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{
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std::unordered_map<std::string, json> o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
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}
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SECTION("std::unordered_multimap<std::string, json>")
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{
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std::unordered_multimap<std::string, json> o {{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}};
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json j(o);
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
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}
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SECTION("associative container literal")
{
json j({{"a", json(1)}, {"b", json(2.2)}, {"c", json(false)}, {"d", json("string")}, {"e", json()}});
CHECK(j.type() == json::value_t::object);
CHECK(j == j_reference);
}
}
SECTION("create an array (explicit)")
{
SECTION("empty array")
{
json::array_t a;
json j(a);
CHECK(j.type() == json::value_t::array);
}
SECTION("filled array")
{
json::array_t a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
}
}
SECTION("create an array (implicit)")
{
// reference array
json::array_t a_reference {json(1), json(2.2), json(false), json("string"), json()};
json j_reference(a_reference);
SECTION("std::list<json>")
{
std::list<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
SECTION("std::forward_list<json>")
{
std::forward_list<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
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SECTION("std::array<json, 5>")
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{
std::array<json, 5> a {{json(1), json(2.2), json(false), json("string"), json()}};
json j(a);
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
SECTION("std::vector<json>")
{
std::vector<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
SECTION("std::deque<json>")
{
std::deque<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
SECTION("std::set<json>")
{
std::set<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
// we cannot really check for equality here
}
SECTION("std::unordered_set<json>")
{
std::unordered_set<json> a {json(1), json(2.2), json(false), json("string"), json()};
json j(a);
CHECK(j.type() == json::value_t::array);
// we cannot really check for equality here
}
SECTION("sequence container literal")
{
json j({json(1), json(2.2), json(false), json("string"), json()});
CHECK(j.type() == json::value_t::array);
CHECK(j == j_reference);
}
}
SECTION("create a string (explicit)")
{
SECTION("empty string")
{
json::string_t s;
json j(s);
CHECK(j.type() == json::value_t::string);
}
SECTION("filled string")
{
json::string_t s {"Hello world"};
json j(s);
CHECK(j.type() == json::value_t::string);
}
}
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SECTION("create a string (implicit)")
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{
// reference string
json::string_t s_reference {"Hello world"};
json j_reference(s_reference);
SECTION("std::string")
{
std::string s {"Hello world"};
json j(s);
CHECK(j.type() == json::value_t::string);
CHECK(j == j_reference);
}
SECTION("char[]")
{
char s[] {"Hello world"};
json j(s);
CHECK(j.type() == json::value_t::string);
CHECK(j == j_reference);
}
SECTION("const char*")
{
const char* s {"Hello world"};
json j(s);
CHECK(j.type() == json::value_t::string);
CHECK(j == j_reference);
}
SECTION("string literal")
{
json j("Hello world");
CHECK(j.type() == json::value_t::string);
CHECK(j == j_reference);
}
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}
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SECTION("create a boolean (explicit)")
{
SECTION("empty boolean")
{
json::boolean_t b{};
json j(b);
CHECK(j.type() == json::value_t::boolean);
}
SECTION("filled boolean (true)")
{
json j(true);
CHECK(j.type() == json::value_t::boolean);
}
SECTION("filled boolean (false)")
{
json j(false);
CHECK(j.type() == json::value_t::boolean);
}
}
SECTION("create an integer number (explicit)")
{
SECTION("uninitialized value")
{
json::number_integer_t n{};
json j(n);
CHECK(j.type() == json::value_t::number_integer);
}
SECTION("initialized value")
{
json::number_integer_t n(42);
json j(n);
CHECK(j.type() == json::value_t::number_integer);
}
}
SECTION("create an integer number (implicit)")
{
// reference object
json::number_integer_t n_reference = 42;
json j_reference(n_reference);
SECTION("short")
{
short n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("unsigned short")
{
unsigned short n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int")
{
int n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("unsigned int")
{
unsigned int n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("long")
{
long n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("unsigned long")
{
short n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("long long")
{
long long n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("unsigned long long")
{
unsigned long long n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int8_t")
{
int8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int16_t")
{
int16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int32_t")
{
int32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int64_t")
{
int64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_fast8_t")
{
int_fast8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_fast16_t")
{
int_fast16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_fast32_t")
{
int_fast32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_fast64_t")
{
int_fast64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_least8_t")
{
int_least8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_least16_t")
{
int_least16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_least32_t")
{
int_least32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("int_least64_t")
{
int_least64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint8_t")
{
uint8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint16_t")
{
uint16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint32_t")
{
uint32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint64_t")
{
uint64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_fast8_t")
{
uint_fast8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_fast16_t")
{
uint_fast16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_fast32_t")
{
uint_fast32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_fast64_t")
{
uint_fast64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_least8_t")
{
uint_least8_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_least16_t")
{
uint_least16_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_least32_t")
{
uint_least32_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("uint_least64_t")
{
uint_least64_t n = 42;
json j(n);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal without suffix")
{
json j(42);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal with u suffix")
{
json j(42u);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal with l suffix")
{
json j(42l);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal with ul suffix")
{
json j(42ul);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal with ll suffix")
{
json j(42ll);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
SECTION("integer literal with ull suffix")
{
json j(42ull);
CHECK(j.type() == json::value_t::number_integer);
CHECK(j == j_reference);
}
}
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SECTION("create a floating-point number (explicit)")
{
SECTION("uninitialized value")
{
json::number_float_t n{};
json j(n);
CHECK(j.type() == json::value_t::number_float);
}
SECTION("initialized value")
{
json::number_float_t n(42.23);
json j(n);
CHECK(j.type() == json::value_t::number_float);
}
}
SECTION("create a floating-point number (implicit)")
{
// reference object
json::number_float_t n_reference = 42.23;
json j_reference(n_reference);
SECTION("float")
{
float n = 42.23;
json j(n);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
SECTION("double")
{
double n = 42.23;
json j(n);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
SECTION("long double")
{
long double n = 42.23;
json j(n);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
SECTION("floating-point literal without suffix")
{
json j(42.23);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
SECTION("integer literal with f suffix")
{
json j(42.23f);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
SECTION("integer literal with l suffix")
{
json j(42.23l);
CHECK(j.type() == json::value_t::number_float);
CHECK(j.m_value.number_float == Approx(j_reference.m_value.number_float));
}
}
SECTION("create a container (array or object) from an initializer list")
{
SECTION("empty initializer list")
{
SECTION("explicit")
{
std::initializer_list<json> l;
json j(l);
CHECK(j.type() == json::value_t::object);
}
SECTION("implicit")
{
json j {};
CHECK(j.type() == json::value_t::null);
}
}
SECTION("one element")
{
SECTION("array")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json(json::array_t())};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {json::array_t()};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("object")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json(json::object_t())};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {json::object_t()};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("string")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json("Hello world")};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {"Hello world"};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("boolean")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json(true)};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {true};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("number (integer)")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json(1)};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {1};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("number (floating-point)")
{
SECTION("explicit")
{
std::initializer_list<json> l = {json(42.23)};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {42.23};
CHECK(j.type() == json::value_t::array);
}
}
}
SECTION("more elements")
{
SECTION("explicit")
{
std::initializer_list<json> l = {1, 42.23, true, nullptr, json::object_t(), json::array_t()};
json j(l);
CHECK(j.type() == json::value_t::array);
}
SECTION("implicit")
{
json j {1, 42.23, true, nullptr, json::object_t(), json::array_t()};
CHECK(j.type() == json::value_t::array);
}
}
SECTION("implicit type deduction")
{
SECTION("object")
{
json j { {"one", 1}, {"two", 2.2}, {"three", false} };
CHECK(j.type() == json::value_t::object);
}
SECTION("array")
{
json j { {"one", 1}, {"two", 2.2}, {"three", false}, 13 };
CHECK(j.type() == json::value_t::array);
}
}
SECTION("explicit type deduction")
{
SECTION("empty object")
{
json j = json::object();
CHECK(j.type() == json::value_t::object);
}
SECTION("object")
{
json j = json::object({ {"one", 1}, {"two", 2.2}, {"three", false} });
CHECK(j.type() == json::value_t::object);
}
SECTION("object with error")
{
CHECK_THROWS_AS(json::object({ {"one", 1}, {"two", 2.2}, {"three", false}, 13 }), std::logic_error);
}
SECTION("empty array")
{
json j = json::array();
CHECK(j.type() == json::value_t::array);
}
SECTION("array")
{
json j = json::array({ {"one", 1}, {"two", 2.2}, {"three", false} });
CHECK(j.type() == json::value_t::array);
}
}
}
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}
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TEST_CASE("other constructors and destructor")
{
SECTION("copy constructor")
{
SECTION("object")
{
json j {{"foo", 1}, {"bar", false}};
json k(j);
CHECK(j == k);
}
SECTION("array")
{
json j {"foo", 1, 42.23, false};
json k(j);
CHECK(j == k);
}
SECTION("null")
{
json j(nullptr);
json k(j);
CHECK(j == k);
}
SECTION("boolean")
{
json j(true);
json k(j);
CHECK(j == k);
}
SECTION("string")
{
json j("Hello world");
json k(j);
CHECK(j == k);
}
SECTION("number (integer)")
{
json j(42);
json k(j);
CHECK(j == k);
}
SECTION("number (floating-point)")
{
json j(42.23);
json k(j);
CHECK(j == k);
}
}
SECTION("move constructor")
{
json j {{"foo", "bar"}, {"baz", {1, 2, 3, 4}}, {"a", 42.23}, {"b", nullptr}};
CHECK(j.type() == json::value_t::object);
json k(std::move(j));
CHECK(k.type() == json::value_t::object);
CHECK(j.type() == json::value_t::null);
}
SECTION("copy assignment")
{
SECTION("object")
{
json j {{"foo", 1}, {"bar", false}};
json k = j;
CHECK(j == k);
}
SECTION("array")
{
json j {"foo", 1, 42.23, false};
json k = j;
CHECK(j == k);
}
SECTION("null")
{
json j(nullptr);
json k = j;
CHECK(j == k);
}
SECTION("boolean")
{
json j(true);
json k = j;
CHECK(j == k);
}
SECTION("string")
{
json j("Hello world");
json k = j;
CHECK(j == k);
}
SECTION("number (integer)")
{
json j(42);
json k = j;
CHECK(j == k);
}
SECTION("number (floating-point)")
{
json j(42.23);
json k = j;
CHECK(j == k);
}
}
SECTION("destructor")
{
SECTION("object")
{
auto j = new json {{"foo", 1}, {"bar", false}};
delete j;
}
SECTION("array")
{
auto j = new json {"foo", 1, false, 23.42};
delete j;
}
SECTION("string")
{
auto j = new json("Hello world");
delete j;
}
}
}
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TEST_CASE("object inspection")
{
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SECTION("serialization")
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{
json j {{"object", json::object()}, {"array", {1, 2, 3, 4}}, {"number", 42}, {"boolean", false}, {"null", nullptr}, {"string", "Hello world"} };
SECTION("no indent")
{
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CHECK(j.dump() ==
"{\"array\":[1,2,3,4],\"boolean\":false,\"null\":null,\"number\":42,\"object\":{},\"string\":\"Hello world\"}");
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}
SECTION("indent=0")
{
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CHECK(j.dump(0) ==
"{\n\"array\": [\n1,\n2,\n3,\n4\n],\n\"boolean\": false,\n\"null\": null,\n\"number\": 42,\n\"object\": {},\n\"string\": \"Hello world\"\n}");
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}
SECTION("indent=4")
{
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CHECK(j.dump(4) ==
"{\n \"array\": [\n 1,\n 2,\n 3,\n 4\n ],\n \"boolean\": false,\n \"null\": null,\n \"number\": 42,\n \"object\": {},\n \"string\": \"Hello world\"\n}");
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}
SECTION("dump and floating-point numbers")
{
auto s = json(42.23).dump();
CHECK(s.find("42.23") != std::string::npos);
}
}
SECTION("return the type of the object (explicit)")
{
SECTION("null")
{
json j = nullptr;
CHECK(j.type() == json::value_t::null);
}
SECTION("object")
{
json j = {{"foo", "bar"}};
CHECK(j.type() == json::value_t::object);
}
SECTION("array")
{
json j = {1, 2, 3, 4};
CHECK(j.type() == json::value_t::array);
}
SECTION("boolean")
{
json j = true;
CHECK(j.type() == json::value_t::boolean);
}
SECTION("string")
{
json j = "Hello world";
CHECK(j.type() == json::value_t::string);
}
SECTION("number (integer)")
{
json j = 23;
CHECK(j.type() == json::value_t::number_integer);
}
SECTION("number (floating-point)")
{
json j = 42.23;
CHECK(j.type() == json::value_t::number_float);
}
}
SECTION("return the type of the object (implicit)")
{
SECTION("null")
{
json j = nullptr;
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("object")
{
json j = {{"foo", "bar"}};
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("array")
{
json j = {1, 2, 3, 4};
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("boolean")
{
json j = true;
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("string")
{
json j = "Hello world";
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("number (integer)")
{
json j = 23;
json::value_t t = j;
CHECK(t == j.type());
}
SECTION("number (floating-point)")
{
json j = 42.23;
json::value_t t = j;
CHECK(t == j.type());
}
}
}
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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")
{
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json::object_t o = j.get<json::object_t>();
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CHECK(json(o) == j);
}
SECTION("std::map<std::string, json>")
{
std::map<std::string, json> o = j.get<std::map<std::string, json>>();
CHECK(json(o) == j);
}
SECTION("std::multimap<std::string, json>")
{
std::multimap<std::string, json> o = j.get<std::multimap<std::string, json>>();
CHECK(json(o) == j);
}
SECTION("std::unordered_map<std::string, json>")
{
std::unordered_map<std::string, json> o = j.get<std::unordered_map<std::string, json>>();
CHECK(json(o) == j);
}
SECTION("std::unordered_multimap<std::string, json>")
{
std::unordered_multimap<std::string, json> o = j.get<std::unordered_multimap<std::string, json>>();
CHECK(json(o) == j);
}
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SECTION("exception in case of a non-object type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::array).get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::string).get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::object_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::object_t>(), std::logic_error);
}
}
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<std::string, json>")
{
std::map<std::string, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::multimap<std::string, json>")
{
std::multimap<std::string, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::unordered_map<std::string, json>")
{
std::unordered_map<std::string, json> o = j;
CHECK(json(o) == j);
}
SECTION("std::unordered_multimap<std::string, json>")
{
std::unordered_multimap<std::string, json> o = j;
CHECK(json(o) == j);
}
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}
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SECTION("get an array (explicit)")
{
json::array_t a_reference {json(1), 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);
}
SECTION("std::vector<json>")
{
std::vector<json> a = j.get<std::vector<json>>();
CHECK(json(a) == j);
}
SECTION("std::deque<json>")
{
std::deque<json> a = j.get<std::deque<json>>();
CHECK(json(a) == j);
}
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SECTION("exception in case of a non-array type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::object).get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::string).get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::array_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::array_t>(), std::logic_error);
}
}
SECTION("get an array (implicit)")
{
json::array_t a_reference {json(1), 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);
}
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}
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SECTION("get a string (explicit)")
{
json::string_t s_reference {"Hello world"};
json j(s_reference);
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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>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::object).get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::array).get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::string_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::string_t>(), std::logic_error);
}
}
SECTION("get a string (implicit)")
{
json::string_t s_reference {"Hello world"};
json j(s_reference);
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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);
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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>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::object).get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::array).get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::string).get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_integer).get<json::boolean_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::number_float).get<json::boolean_t>(), std::logic_error);
}
}
SECTION("get a boolean (implicit)")
{
json::boolean_t b_reference {true};
json j(b_reference);
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SECTION("boolean_t")
{
json::boolean_t b = j;
CHECK(json(b) == j);
}
SECTION("bool")
{
bool b = j;
CHECK(json(b) == j);
}
}
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SECTION("get an integer number (explicit)")
{
json::number_integer_t n_reference {42};
json j(n_reference);
SECTION("number_integer_t")
{
json::number_integer_t n = j.get<json::number_integer_t>();
CHECK(json(n) == j);
}
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("exception in case of a non-number type")
{
CHECK_THROWS_AS(json(json::value_t::null).get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::object).get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::array).get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::string).get<json::number_integer_t>(), std::logic_error);
CHECK_THROWS_AS(json(json::value_t::boolean).get<json::number_integer_t>(), std::logic_error);
CHECK_NOTHROW(json(json::value_t::number_float).get<json::number_integer_t>());
}
}
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}