Google Git
Sign in
flutter / third_party / json / refs/heads/clang-format / . / tests / src / unit-element_access2.cpp
blob: 77ca44a2f17e4aba0537717800ffd1aeec9905d8 [file] [log] [blame] [edit]
// __ _____ _____ _____
// __| | __| | | | JSON for Modern C++ (supporting code)
// | | |__ | | | | | | version 3.11.3
// |_____|_____|_____|_|___| https://github.com/nlohmann/json
//
// Copyright (c) 2013-2022 Niels Lohmann <http://nlohmann.me>.
// SPDX-FileCopyrightText: 2013-2023 Niels Lohmann <https://nlohmann.me>
// SPDX-License-Identifier: MIT
#include "doctest_compatibility.h"
#include <nlohmann/json.hpp>
#ifdef JSON_TEST_NO_GLOBAL_UDLS
using namespace nlohmann::literals; // NOLINT(google-build-using-namespace)
#endif
// build test with C++14
// JSON_HAS_CPP_14
TEST_CASE_TEMPLATE("element access 2", Json, nlohmann::json, nlohmann::ordered_json)
{
SECTION("object")
{
Json j = { { "integer", 1 }, { "unsigned", 1u }, { "floating", 42.23 }, { "null", nullptr }, { "string", "hello world" },
{ "boolean", true }, { "object", Json::object() }, { "array", { 1, 2, 3 } } };
const Json j_const = j;
SECTION("access specified element with bounds checking")
{
SECTION("access within bounds")
{
CHECK(j.at("integer") == Json(1));
CHECK(j.at("unsigned") == Json(1u));
CHECK(j.at("boolean") == Json(true));
CHECK(j.at("null") == Json(nullptr));
CHECK(j.at("string") == Json("hello world"));
CHECK(j.at("floating") == Json(42.23));
CHECK(j.at("object") == Json::object());
CHECK(j.at("array") == Json({ 1, 2, 3 }));
CHECK(j_const.at("integer") == Json(1));
CHECK(j_const.at("unsigned") == Json(1u));
CHECK(j_const.at("boolean") == Json(true));
CHECK(j_const.at("null") == Json(nullptr));
CHECK(j_const.at("string") == Json("hello world"));
CHECK(j_const.at("floating") == Json(42.23));
CHECK(j_const.at("object") == Json::object());
CHECK(j_const.at("array") == Json({ 1, 2, 3 }));
#ifdef JSON_HAS_CPP_17
CHECK(j.at(std::string_view("integer")) == Json(1));
CHECK(j.at(std::string_view("unsigned")) == Json(1u));
CHECK(j.at(std::string_view("boolean")) == Json(true));
CHECK(j.at(std::string_view("null")) == Json(nullptr));
CHECK(j.at(std::string_view("string")) == Json("hello world"));
CHECK(j.at(std::string_view("floating")) == Json(42.23));
CHECK(j.at(std::string_view("object")) == Json::object());
CHECK(j.at(std::string_view("array")) == Json({ 1, 2, 3 }));
CHECK(j_const.at(std::string_view("integer")) == Json(1));
CHECK(j_const.at(std::string_view("unsigned")) == Json(1u));
CHECK(j_const.at(std::string_view("boolean")) == Json(true));
CHECK(j_const.at(std::string_view("null")) == Json(nullptr));
CHECK(j_const.at(std::string_view("string")) == Json("hello world"));
CHECK(j_const.at(std::string_view("floating")) == Json(42.23));
CHECK(j_const.at(std::string_view("object")) == Json::object());
CHECK(j_const.at(std::string_view("array")) == Json({ 1, 2, 3 }));
#endif
}
SECTION("access outside bounds")
{
CHECK_THROWS_WITH_AS(j.at("foo"), "[json.exception.out_of_range.403] key 'foo' not found", typename Json::out_of_range&);
CHECK_THROWS_WITH_AS(j_const.at("foo"), "[json.exception.out_of_range.403] key 'foo' not found", typename Json::out_of_range&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j.at(std::string_view("foo")), "[json.exception.out_of_range.403] key 'foo' not found", typename Json::out_of_range&);
CHECK_THROWS_WITH_AS(j_const.at(std::string_view("foo")),
"[json.exception.out_of_range.403] key 'foo' not found",
typename Json::out_of_range&);
#endif
}
SECTION("access on non-object type")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"), "[json.exception.type_error.304] cannot use at() with null", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view(std::string_view("foo"))),
"[json.exception.type_error.304] cannot use at() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view(std::string_view("foo"))),
"[json.exception.type_error.304] cannot use at() with null",
typename Json::type_error&);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with boolean", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"),
"[json.exception.type_error.304] cannot use at() with boolean",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with boolean",
typename Json::type_error&);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with string", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"),
"[json.exception.type_error.304] cannot use at() with string",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with string",
typename Json::type_error&);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with array", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"), "[json.exception.type_error.304] cannot use at() with array", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with array",
typename Json::type_error&);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with number", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#endif
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with number", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_nonobject_const(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject.at("foo"), "[json.exception.type_error.304] cannot use at() with number", typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at("foo"),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.at(std::string_view("foo")),
"[json.exception.type_error.304] cannot use at() with number",
typename Json::type_error&);
#endif
}
}
}
SECTION("access specified element with default value")
{
SECTION("given a key")
{
SECTION("access existing value")
{
CHECK(j.value("integer", 2) == 1);
CHECK(j.value("integer", 1.0) == Approx(1));
CHECK(j.value("unsigned", 2) == 1u);
CHECK(j.value("unsigned", 1.0) == Approx(1u));
CHECK(j.value("null", Json(1)) == Json());
CHECK(j.value("boolean", false) == true);
CHECK(j.value("string", "bar") == "hello world");
CHECK(j.value("string", std::string("bar")) == "hello world");
CHECK(j.value("floating", 12.34) == Approx(42.23));
CHECK(j.value("floating", 12) == 42);
CHECK(j.value("object", Json({ { "foo", "bar" } })) == Json::object());
CHECK(j.value("array", Json({ 10, 100 })) == Json({ 1, 2, 3 }));
CHECK(j_const.value("integer", 2) == 1);
CHECK(j_const.value("integer", 1.0) == Approx(1));
CHECK(j_const.value("unsigned", 2) == 1u);
CHECK(j_const.value("unsigned", 1.0) == Approx(1u));
CHECK(j_const.value("boolean", false) == true);
CHECK(j_const.value("string", "bar") == "hello world");
CHECK(j_const.value("string", std::string("bar")) == "hello world");
CHECK(j_const.value("floating", 12.34) == Approx(42.23));
CHECK(j_const.value("floating", 12) == 42);
CHECK(j_const.value("object", Json({ { "foo", "bar" } })) == Json::object());
CHECK(j_const.value("array", Json({ 10, 100 })) == Json({ 1, 2, 3 }));
#ifdef JSON_HAS_CPP_17
CHECK(j.value(std::string_view("integer"), 2) == 1);
CHECK(j.value(std::string_view("integer"), 1.0) == Approx(1));
CHECK(j.value(std::string_view("unsigned"), 2) == 1u);
CHECK(j.value(std::string_view("unsigned"), 1.0) == Approx(1u));
CHECK(j.value(std::string_view("null"), Json(1)) == Json());
CHECK(j.value(std::string_view("boolean"), false) == true);
CHECK(j.value(std::string_view("string"), "bar") == "hello world");
CHECK(j.value(std::string_view("string"), std::string("bar")) == "hello world");
CHECK(j.value(std::string_view("floating"), 12.34) == Approx(42.23));
CHECK(j.value(std::string_view("floating"), 12) == 42);
CHECK(j.value(std::string_view("object"), Json({ { "foo", "bar" } })) == Json::object());
CHECK(j.value(std::string_view("array"), Json({ 10, 100 })) == Json({ 1, 2, 3 }));
CHECK(j_const.value(std::string_view("integer"), 2) == 1);
CHECK(j_const.value(std::string_view("integer"), 1.0) == Approx(1));
CHECK(j_const.value(std::string_view("unsigned"), 2) == 1u);
CHECK(j_const.value(std::string_view("unsigned"), 1.0) == Approx(1u));
CHECK(j_const.value(std::string_view("boolean"), false) == true);
CHECK(j_const.value(std::string_view("string"), "bar") == "hello world");
CHECK(j_const.value(std::string_view("string"), std::string("bar")) == "hello world");
CHECK(j_const.value(std::string_view("floating"), 12.34) == Approx(42.23));
CHECK(j_const.value(std::string_view("floating"), 12) == 42);
CHECK(j_const.value(std::string_view("object"), Json({ { "foo", "bar" } })) == Json::object());
CHECK(j_const.value(std::string_view("array"), Json({ 10, 100 })) == Json({ 1, 2, 3 }));
#endif
}
SECTION("access non-existing value")
{
CHECK(j.value("_", 2) == 2);
CHECK(j.value("_", 2u) == 2u);
CHECK(j.value("_", false) == false);
CHECK(j.value("_", "bar") == "bar");
CHECK(j.value("_", 12.34) == Approx(12.34));
CHECK(j.value("_", Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j.value("_", Json({ 10, 100 })) == Json({ 10, 100 }));
CHECK(j_const.value("_", 2) == 2);
CHECK(j_const.value("_", 2u) == 2u);
CHECK(j_const.value("_", false) == false);
CHECK(j_const.value("_", "bar") == "bar");
CHECK(j_const.value("_", 12.34) == Approx(12.34));
CHECK(j_const.value("_", Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j_const.value("_", Json({ 10, 100 })) == Json({ 10, 100 }));
#ifdef JSON_HAS_CPP_17
CHECK(j.value(std::string_view("_"), 2) == 2);
CHECK(j.value(std::string_view("_"), 2u) == 2u);
CHECK(j.value(std::string_view("_"), false) == false);
CHECK(j.value(std::string_view("_"), "bar") == "bar");
CHECK(j.value(std::string_view("_"), 12.34) == Approx(12.34));
CHECK(j.value(std::string_view("_"), Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j.value(std::string_view("_"), Json({ 10, 100 })) == Json({ 10, 100 }));
CHECK(j_const.value(std::string_view("_"), 2) == 2);
CHECK(j_const.value(std::string_view("_"), 2u) == 2u);
CHECK(j_const.value(std::string_view("_"), false) == false);
CHECK(j_const.value(std::string_view("_"), "bar") == "bar");
CHECK(j_const.value(std::string_view("_"), 12.34) == Approx(12.34));
CHECK(j_const.value(std::string_view("_"), Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j_const.value(std::string_view("_"), Json({ 10, 100 })) == Json({ 10, 100 }));
#endif
}
SECTION("access on non-object type")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
const Json j_nonobject_const(Json::value_t::null);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_nonobject_const(Json::value_t::boolean);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_nonobject_const(Json::value_t::string);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_nonobject_const(Json::value_t::array);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_nonobject_const(Json::value_t::number_integer);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#endif
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_nonobject_const(Json::value_t::number_unsigned);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_nonobject_const(Json::value_t::number_float);
CHECK_THROWS_WITH_AS(j_nonobject.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("foo", 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value(std::string_view("foo"), 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
#endif
}
}
}
SECTION("given a JSON pointer")
{
SECTION("access existing value")
{
CHECK(j.value("/integer"_json_pointer, 2) == 1);
CHECK(j.value("/integer"_json_pointer, 1.0) == Approx(1));
CHECK(j.value("/unsigned"_json_pointer, 2) == 1u);
CHECK(j.value("/unsigned"_json_pointer, 1.0) == Approx(1u));
CHECK(j.value("/null"_json_pointer, Json(1)) == Json());
CHECK(j.value("/boolean"_json_pointer, false) == true);
CHECK(j.value("/string"_json_pointer, "bar") == "hello world");
CHECK(j.value("/string"_json_pointer, std::string("bar")) == "hello world");
CHECK(j.value("/floating"_json_pointer, 12.34) == Approx(42.23));
CHECK(j.value("/floating"_json_pointer, 12) == 42);
CHECK(j.value("/object"_json_pointer, Json({ { "foo", "bar" } })) == Json::object());
CHECK(j.value("/array"_json_pointer, Json({ 10, 100 })) == Json({ 1, 2, 3 }));
CHECK(j_const.value("/integer"_json_pointer, 2) == 1);
CHECK(j_const.value("/integer"_json_pointer, 1.0) == Approx(1));
CHECK(j_const.value("/unsigned"_json_pointer, 2) == 1u);
CHECK(j_const.value("/unsigned"_json_pointer, 1.0) == Approx(1u));
CHECK(j_const.value("/boolean"_json_pointer, false) == true);
CHECK(j_const.value("/string"_json_pointer, "bar") == "hello world");
CHECK(j_const.value("/string"_json_pointer, std::string("bar")) == "hello world");
CHECK(j_const.value("/floating"_json_pointer, 12.34) == Approx(42.23));
CHECK(j_const.value("/floating"_json_pointer, 12) == 42);
CHECK(j_const.value("/object"_json_pointer, Json({ { "foo", "bar" } })) == Json::object());
CHECK(j_const.value("/array"_json_pointer, Json({ 10, 100 })) == Json({ 1, 2, 3 }));
}
SECTION("access on non-object type")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
const Json j_nonobject_const(Json::value_t::null);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_nonobject_const(Json::value_t::boolean);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with boolean",
typename Json::type_error&);
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_nonobject_const(Json::value_t::string);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with string",
typename Json::type_error&);
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_nonobject_const(Json::value_t::array);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with array",
typename Json::type_error&);
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_nonobject_const(Json::value_t::number_integer);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_nonobject_const(Json::value_t::number_unsigned);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_nonobject_const(Json::value_t::number_float);
CHECK_THROWS_WITH_AS(j_nonobject.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject_const.value("/foo"_json_pointer, 1),
"[json.exception.type_error.306] cannot use value() with number",
typename Json::type_error&);
}
}
}
}
SECTION("non-const operator[]"){ { Json j_null;
CHECK(j_null.is_null());
j_null["key"] = 1;
CHECK(j_null.is_object());
CHECK(j_null.size() == 1);
j_null["key"] = 2;
CHECK(j_null.size() == 1);
}
#ifdef JSON_HAS_CPP_17
{
std::string_view const key = "key";
Json j_null;
CHECK(j_null.is_null());
j_null[key] = 1;
CHECK(j_null.is_object());
CHECK(j_null.size() == 1);
j_null[key] = 2;
CHECK(j_null.size() == 1);
}
#endif
}
SECTION("front and back")
{
if (std::is_same<Json, nlohmann::ordered_json>::value)
{
// "integer" is the first key
CHECK(j.front() == Json(1));
CHECK(j_const.front() == Json(1));
// "array" is last key
CHECK(j.back() == Json({ 1, 2, 3 }));
CHECK(j_const.back() == Json({ 1, 2, 3 }));
}
else
{
// "array" is the smallest key
CHECK(j.front() == Json({ 1, 2, 3 }));
CHECK(j_const.front() == Json({ 1, 2, 3 }));
// "unsigned" is the largest key
CHECK(j.back() == Json(1u));
CHECK(j_const.back() == Json(1u));
}
}
SECTION("access specified element")
{
SECTION("access within bounds")
{
CHECK(j["integer"] == Json(1));
CHECK(j[typename Json::object_t::key_type("integer")] == j["integer"]);
CHECK(j["unsigned"] == Json(1u));
CHECK(j[typename Json::object_t::key_type("unsigned")] == j["unsigned"]);
CHECK(j["boolean"] == Json(true));
CHECK(j[typename Json::object_t::key_type("boolean")] == j["boolean"]);
CHECK(j["null"] == Json(nullptr));
CHECK(j[typename Json::object_t::key_type("null")] == j["null"]);
CHECK(j["string"] == Json("hello world"));
CHECK(j[typename Json::object_t::key_type("string")] == j["string"]);
CHECK(j["floating"] == Json(42.23));
CHECK(j[typename Json::object_t::key_type("floating")] == j["floating"]);
CHECK(j["object"] == Json::object());
CHECK(j[typename Json::object_t::key_type("object")] == j["object"]);
CHECK(j["array"] == Json({ 1, 2, 3 }));
CHECK(j[typename Json::object_t::key_type("array")] == j["array"]);
CHECK(j_const["integer"] == Json(1));
CHECK(j_const[typename Json::object_t::key_type("integer")] == j["integer"]);
CHECK(j_const["boolean"] == Json(true));
CHECK(j_const[typename Json::object_t::key_type("boolean")] == j["boolean"]);
CHECK(j_const["null"] == Json(nullptr));
CHECK(j_const[typename Json::object_t::key_type("null")] == j["null"]);
CHECK(j_const["string"] == Json("hello world"));
CHECK(j_const[typename Json::object_t::key_type("string")] == j["string"]);
CHECK(j_const["floating"] == Json(42.23));
CHECK(j_const[typename Json::object_t::key_type("floating")] == j["floating"]);
CHECK(j_const["object"] == Json::object());
CHECK(j_const[typename Json::object_t::key_type("object")] == j["object"]);
CHECK(j_const["array"] == Json({ 1, 2, 3 }));
CHECK(j_const[typename Json::object_t::key_type("array")] == j["array"]);
}
#ifdef JSON_HAS_CPP_17
SECTION("access within bounds (string_view)")
{
CHECK(j["integer"] == Json(1));
CHECK(j[std::string_view("integer")] == j["integer"]);
CHECK(j["unsigned"] == Json(1u));
CHECK(j[std::string_view("unsigned")] == j["unsigned"]);
CHECK(j["boolean"] == Json(true));
CHECK(j[std::string_view("boolean")] == j["boolean"]);
CHECK(j["null"] == Json(nullptr));
CHECK(j[std::string_view("null")] == j["null"]);
CHECK(j["string"] == Json("hello world"));
CHECK(j[std::string_view("string")] == j["string"]);
CHECK(j["floating"] == Json(42.23));
CHECK(j[std::string_view("floating")] == j["floating"]);
CHECK(j["object"] == Json::object());
CHECK(j[std::string_view("object")] == j["object"]);
CHECK(j["array"] == Json({ 1, 2, 3 }));
CHECK(j[std::string_view("array")] == j["array"]);
CHECK(j_const["integer"] == Json(1));
CHECK(j_const[std::string_view("integer")] == j["integer"]);
CHECK(j_const["boolean"] == Json(true));
CHECK(j_const[std::string_view("boolean")] == j["boolean"]);
CHECK(j_const["null"] == Json(nullptr));
CHECK(j_const[std::string_view("null")] == j["null"]);
CHECK(j_const["string"] == Json("hello world"));
CHECK(j_const[std::string_view("string")] == j["string"]);
CHECK(j_const["floating"] == Json(42.23));
CHECK(j_const[std::string_view("floating")] == j["floating"]);
CHECK(j_const["object"] == Json::object());
CHECK(j_const[std::string_view("object")] == j["object"]);
CHECK(j_const["array"] == Json({ 1, 2, 3 }));
CHECK(j_const[std::string_view("array")] == j["array"]);
}
#endif
SECTION("access on non-object type")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
Json j_nonobject2(Json::value_t::null);
const Json j_const_nonobject(j_nonobject);
CHECK_NOTHROW(j_nonobject["foo"]);
CHECK_NOTHROW(j_nonobject2[typename Json::object_t::key_type("foo")]);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with null",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_NOTHROW(j_nonobject2[std::string_view("foo")]);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with null",
typename Json::type_error&);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with boolean",
typename Json::type_error&);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with string",
typename Json::type_error&);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with array",
typename Json::type_error&);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#endif
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_const_nonobject(j_nonobject);
CHECK_THROWS_WITH_AS(j_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject["foo"],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[typename Json::object_t::key_type("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(j_const_nonobject[std::string_view("foo")],
"[json.exception.type_error.305] cannot use operator[] with a string argument with number",
typename Json::type_error&);
#endif
}
}
}
SECTION("remove specified element")
{
SECTION("remove element by key")
{
CHECK(j.find("integer") != j.end());
CHECK(j.erase("integer") == 1);
CHECK(j.find("integer") == j.end());
CHECK(j.erase("integer") == 0);
CHECK(j.find("unsigned") != j.end());
CHECK(j.erase("unsigned") == 1);
CHECK(j.find("unsigned") == j.end());
CHECK(j.erase("unsigned") == 0);
CHECK(j.find("boolean") != j.end());
CHECK(j.erase("boolean") == 1);
CHECK(j.find("boolean") == j.end());
CHECK(j.erase("boolean") == 0);
CHECK(j.find("null") != j.end());
CHECK(j.erase("null") == 1);
CHECK(j.find("null") == j.end());
CHECK(j.erase("null") == 0);
CHECK(j.find("string") != j.end());
CHECK(j.erase("string") == 1);
CHECK(j.find("string") == j.end());
CHECK(j.erase("string") == 0);
CHECK(j.find("floating") != j.end());
CHECK(j.erase("floating") == 1);
CHECK(j.find("floating") == j.end());
CHECK(j.erase("floating") == 0);
CHECK(j.find("object") != j.end());
CHECK(j.erase("object") == 1);
CHECK(j.find("object") == j.end());
CHECK(j.erase("object") == 0);
CHECK(j.find("array") != j.end());
CHECK(j.erase("array") == 1);
CHECK(j.find("array") == j.end());
CHECK(j.erase("array") == 0);
}
#ifdef JSON_HAS_CPP_17
SECTION("remove element by key (string_view)")
{
CHECK(j.find(std::string_view("integer")) != j.end());
CHECK(j.erase(std::string_view("integer")) == 1);
CHECK(j.find(std::string_view("integer")) == j.end());
CHECK(j.erase(std::string_view("integer")) == 0);
CHECK(j.find(std::string_view("unsigned")) != j.end());
CHECK(j.erase(std::string_view("unsigned")) == 1);
CHECK(j.find(std::string_view("unsigned")) == j.end());
CHECK(j.erase(std::string_view("unsigned")) == 0);
CHECK(j.find(std::string_view("boolean")) != j.end());
CHECK(j.erase(std::string_view("boolean")) == 1);
CHECK(j.find(std::string_view("boolean")) == j.end());
CHECK(j.erase(std::string_view("boolean")) == 0);
CHECK(j.find(std::string_view("null")) != j.end());
CHECK(j.erase(std::string_view("null")) == 1);
CHECK(j.find(std::string_view("null")) == j.end());
CHECK(j.erase(std::string_view("null")) == 0);
CHECK(j.find(std::string_view("string")) != j.end());
CHECK(j.erase(std::string_view("string")) == 1);
CHECK(j.find(std::string_view("string")) == j.end());
CHECK(j.erase(std::string_view("string")) == 0);
CHECK(j.find(std::string_view("floating")) != j.end());
CHECK(j.erase(std::string_view("floating")) == 1);
CHECK(j.find(std::string_view("floating")) == j.end());
CHECK(j.erase(std::string_view("floating")) == 0);
CHECK(j.find(std::string_view("object")) != j.end());
CHECK(j.erase(std::string_view("object")) == 1);
CHECK(j.find(std::string_view("object")) == j.end());
CHECK(j.erase(std::string_view("object")) == 0);
CHECK(j.find(std::string_view("array")) != j.end());
CHECK(j.erase(std::string_view("array")) == 1);
CHECK(j.find(std::string_view("array")) == j.end());
CHECK(j.erase(std::string_view("array")) == 0);
}
#endif
SECTION("remove element by iterator")
{
SECTION("erase(begin())")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::iterator const it2 = jobject.erase(jobject.begin());
CHECK(jobject == Json({ { "b", 1 }, { "c", 17u } }));
CHECK(*it2 == Json(1));
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::const_iterator const it2 = jobject.erase(jobject.cbegin());
CHECK(jobject == Json({ { "b", 1 }, { "c", 17u } }));
CHECK(*it2 == Json(1));
}
}
SECTION("erase(begin(), end())")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::iterator it2 = jobject.erase(jobject.begin(), jobject.end());
CHECK(jobject == Json::object());
CHECK(it2 == jobject.end());
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::const_iterator it2 = jobject.erase(jobject.cbegin(), jobject.cend());
CHECK(jobject == Json::object());
CHECK(it2 == jobject.cend());
}
}
SECTION("erase(begin(), begin())")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::iterator const it2 = jobject.erase(jobject.begin(), jobject.begin());
CHECK(jobject == Json({ { "a", "a" }, { "b", 1 }, { "c", 17u } }));
CHECK(*it2 == Json("a"));
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::const_iterator const it2 = jobject.erase(jobject.cbegin(), jobject.cbegin());
CHECK(jobject == Json({ { "a", "a" }, { "b", 1 }, { "c", 17u } }));
CHECK(*it2 == Json("a"));
}
}
SECTION("erase at offset")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::iterator const it = jobject.find("b");
typename Json::iterator const it2 = jobject.erase(it);
CHECK(jobject == Json({ { "a", "a" }, { "c", 17u } }));
CHECK(*it2 == Json(17));
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
typename Json::const_iterator const it = jobject.find("b");
typename Json::const_iterator const it2 = jobject.erase(it);
CHECK(jobject == Json({ { "a", "a" }, { "c", 17u } }));
CHECK(*it2 == Json(17));
}
}
SECTION("erase subrange")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u }, { "d", false }, { "e", true } };
typename Json::iterator const it2 = jobject.erase(jobject.find("b"), jobject.find("e"));
CHECK(jobject == Json({ { "a", "a" }, { "e", true } }));
CHECK(*it2 == Json(true));
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u }, { "d", false }, { "e", true } };
typename Json::const_iterator const it2 = jobject.erase(jobject.find("b"), jobject.find("e"));
CHECK(jobject == Json({ { "a", "a" }, { "e", true } }));
CHECK(*it2 == Json(true));
}
}
SECTION("different objects")
{
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u }, { "d", false }, { "e", true } };
Json jobject2 = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.begin()),
"[json.exception.invalid_iterator.202] iterator does not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject.begin(), jobject2.end()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.begin(), jobject.end()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.begin(), jobject2.end()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
}
{
Json jobject = { { "a", "a" }, { "b", 1 }, { "c", 17u }, { "d", false }, { "e", true } };
Json jobject2 = { { "a", "a" }, { "b", 1 }, { "c", 17u } };
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.cbegin()),
"[json.exception.invalid_iterator.202] iterator does not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject.cbegin(), jobject2.cend()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.cbegin(), jobject.cend()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
CHECK_THROWS_WITH_AS(jobject.erase(jobject2.cbegin(), jobject2.cend()),
"[json.exception.invalid_iterator.203] iterators do not fit current value",
typename Json::invalid_iterator&);
}
}
}
SECTION("remove element by key in non-object type")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with null", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with null",
typename Json::type_error&);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with boolean", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with boolean",
typename Json::type_error&);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with string", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with string",
typename Json::type_error&);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with array", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with array",
typename Json::type_error&);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with number", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with number",
typename Json::type_error&);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
CHECK_THROWS_WITH_AS(j_nonobject.erase("foo"), "[json.exception.type_error.307] cannot use erase() with number", typename Json::type_error&);
#ifdef JSON_HAS_CPP_17
CHECK_THROWS_WITH_AS(j_nonobject.erase(std::string_view("foo")),
"[json.exception.type_error.307] cannot use erase() with number",
typename Json::type_error&);
#endif
}
}
}
SECTION("find an element in an object")
{
SECTION("existing element")
{
for (const auto* key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.find(key) != j.end());
CHECK(*j.find(key) == j.at(key));
CHECK(j_const.find(key) != j_const.end());
CHECK(*j_const.find(key) == j_const.at(key));
}
#ifdef JSON_HAS_CPP_17
for (const std::string_view key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.find(key) != j.end());
CHECK(*j.find(key) == j.at(key));
CHECK(j_const.find(key) != j_const.end());
CHECK(*j_const.find(key) == j_const.at(key));
}
#endif
}
SECTION("nonexisting element")
{
CHECK(j.find("foo") == j.end());
CHECK(j_const.find("foo") == j_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j.find(std::string_view("foo")) == j.end());
CHECK(j_const.find(std::string_view("foo")) == j_const.end());
#endif
}
SECTION("all types")
{
SECTION("null")
{
Json j_nonarray(Json::value_t::null);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("string")
{
Json j_nonarray(Json::value_t::string);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("object")
{
Json j_nonarray(Json::value_t::object);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("array")
{
Json j_nonarray(Json::value_t::array);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("boolean")
{
Json j_nonarray(Json::value_t::boolean);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("number (integer)")
{
Json j_nonarray(Json::value_t::number_integer);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("number (unsigned)")
{
Json j_nonarray(Json::value_t::number_unsigned);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
SECTION("number (floating-point)")
{
Json j_nonarray(Json::value_t::number_float);
const Json j_nonarray_const(j_nonarray);
CHECK(j_nonarray.find("foo") == j_nonarray.end());
CHECK(j_nonarray_const.find("foo") == j_nonarray_const.end());
#ifdef JSON_HAS_CPP_17
CHECK(j_nonarray.find(std::string_view("foo")) == j_nonarray.end());
CHECK(j_nonarray_const.find(std::string_view("foo")) == j_nonarray_const.end());
#endif
}
}
}
SECTION("count keys in an object")
{
SECTION("existing element")
{
for (const auto* key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.count(key) == 1);
CHECK(j_const.count(key) == 1);
}
#ifdef JSON_HAS_CPP_17
for (const std::string_view key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.count(key) == 1);
CHECK(j_const.count(key) == 1);
}
#endif
}
SECTION("nonexisting element")
{
CHECK(j.count("foo") == 0);
CHECK(j_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("all types")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
const Json j_nonobject_const(Json::value_t::null);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_nonobject_const(Json::value_t::string);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("object")
{
Json j_nonobject(Json::value_t::object);
const Json j_nonobject_const(Json::value_t::object);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_nonobject_const(Json::value_t::array);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_nonobject_const(Json::value_t::boolean);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_nonobject_const(Json::value_t::number_integer);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_nonobject_const(Json::value_t::number_unsigned);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_nonobject_const(Json::value_t::number_float);
CHECK(j_nonobject.count("foo") == 0);
CHECK(j_nonobject_const.count("foo") == 0);
#ifdef JSON_HAS_CPP_17
CHECK(j.count(std::string_view("foo")) == 0);
CHECK(j_const.count(std::string_view("foo")) == 0);
#endif
}
}
}
SECTION("check existence of key in an object")
{
SECTION("existing element")
{
for (const auto* key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.contains(key) == true);
CHECK(j_const.contains(key) == true);
}
#ifdef JSON_HAS_CPP_17
for (const std::string_view key : { "integer", "unsigned", "floating", "null", "string", "boolean", "object", "array" })
{
CHECK(j.contains(key) == true);
CHECK(j_const.contains(key) == true);
}
#endif
}
SECTION("nonexisting element")
{
CHECK(j.contains("foo") == false);
CHECK(j_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j.contains(std::string_view("foo")) == false);
CHECK(j_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("all types")
{
SECTION("null")
{
Json j_nonobject(Json::value_t::null);
const Json j_nonobject_const(Json::value_t::null);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("string")
{
Json j_nonobject(Json::value_t::string);
const Json j_nonobject_const(Json::value_t::string);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("object")
{
Json j_nonobject(Json::value_t::object);
const Json j_nonobject_const(Json::value_t::object);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("array")
{
Json j_nonobject(Json::value_t::array);
const Json j_nonobject_const(Json::value_t::array);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("boolean")
{
Json j_nonobject(Json::value_t::boolean);
const Json j_nonobject_const(Json::value_t::boolean);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("number (integer)")
{
Json j_nonobject(Json::value_t::number_integer);
const Json j_nonobject_const(Json::value_t::number_integer);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("number (unsigned)")
{
Json j_nonobject(Json::value_t::number_unsigned);
const Json j_nonobject_const(Json::value_t::number_unsigned);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
SECTION("number (floating-point)")
{
Json j_nonobject(Json::value_t::number_float);
const Json j_nonobject_const(Json::value_t::number_float);
CHECK(j_nonobject.contains("foo") == false);
CHECK(j_nonobject_const.contains("foo") == false);
#ifdef JSON_HAS_CPP_17
CHECK(j_nonobject.contains(std::string_view("foo")) == false);
CHECK(j_nonobject_const.contains(std::string_view("foo")) == false);
#endif
}
}
}
}
}
#if !defined(JSON_NOEXCEPTION)
TEST_CASE_TEMPLATE("element access 2 (throwing tests)", Json, nlohmann::json, nlohmann::ordered_json)
{
SECTION("object")
{
Json j = { { "integer", 1 }, { "unsigned", 1u }, { "floating", 42.23 }, { "null", nullptr }, { "string", "hello world" },
{ "boolean", true }, { "object", Json::object() }, { "array", { 1, 2, 3 } } };
const Json j_const = { { "integer", 1 }, { "unsigned", 1u }, { "floating", 42.23 }, { "null", nullptr }, { "string", "hello world" },
{ "boolean", true }, { "object", Json::object() }, { "array", { 1, 2, 3 } } };
SECTION("access specified element with default value")
{
SECTION("given a JSON pointer")
{
SECTION("access non-existing value")
{
CHECK(j.value("/not/existing"_json_pointer, 2) == 2);
CHECK(j.value("/not/existing"_json_pointer, 2u) == 2u);
CHECK(j.value("/not/existing"_json_pointer, false) == false);
CHECK(j.value("/not/existing"_json_pointer, "bar") == "bar");
CHECK(j.value("/not/existing"_json_pointer, 12.34) == Approx(12.34));
CHECK(j.value("/not/existing"_json_pointer, Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j.value("/not/existing"_json_pointer, Json({ 10, 100 })) == Json({ 10, 100 }));
CHECK(j_const.value("/not/existing"_json_pointer, 2) == 2);
CHECK(j_const.value("/not/existing"_json_pointer, 2u) == 2u);
CHECK(j_const.value("/not/existing"_json_pointer, false) == false);
CHECK(j_const.value("/not/existing"_json_pointer, "bar") == "bar");
CHECK(j_const.value("/not/existing"_json_pointer, 12.34) == Approx(12.34));
CHECK(j_const.value("/not/existing"_json_pointer, Json({ { "foo", "bar" } })) == Json({ { "foo", "bar" } }));
CHECK(j_const.value("/not/existing"_json_pointer, Json({ 10, 100 })) == Json({ 10, 100 }));
}
}
}
}
}
#endif
// TODO(falbrechtskirchinger) merge with the other test case; clean up
TEST_CASE_TEMPLATE("element access 2 (additional value() tests)", Json, nlohmann::json, nlohmann::ordered_json)
{
using string_t = typename Json::string_t;
using number_integer_t = typename Json::number_integer_t;
// test assumes string_t and object_t::key_type are the same
REQUIRE(std::is_same<string_t, typename Json::object_t::key_type>::value);
Json j{ { "foo", "bar" }, { "baz", 42 } };
const char* cpstr = "default";
const char castr[] = "default"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
string_t const str = "default";
number_integer_t integer = 69;
std::size_t size = 69;
SECTION("deduced ValueType"){ SECTION("literal key"){ CHECK(j.value("foo", "default") == "bar");
CHECK(j.value("foo", cpstr) == "bar");
CHECK(j.value("foo", castr) == "bar");
CHECK(j.value("foo", str) == "bar");
// this test is in fact different from the one below,
// because of 0 considering const char * overloads
// whereas any other number does not
CHECK(j.value("baz", 0) == 42);
CHECK(j.value("baz", 47) == 42);
CHECK(j.value("baz", integer) == 42);
CHECK(j.value("baz", size) == 42);
CHECK(j.value("bar", "default") == "default");
CHECK(j.value("bar", 0) == 0);
CHECK(j.value("bar", 47) == 47);
CHECK(j.value("bar", integer) == integer);
CHECK(j.value("bar", size) == size);
CHECK_THROWS_WITH_AS(Json().value("foo", "default"), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().value("foo", str), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
}
SECTION("const char * key")
{
const char* key = "foo";
const char* key2 = "baz";
const char* key_notfound = "bar";
CHECK(j.value(key, "default") == "bar");
CHECK(j.value(key, cpstr) == "bar");
CHECK(j.value(key, castr) == "bar");
CHECK(j.value(key, str) == "bar");
CHECK(j.value(key2, 0) == 42);
CHECK(j.value(key2, 47) == 42);
CHECK(j.value(key2, integer) == 42);
CHECK(j.value(key2, size) == 42);
CHECK(j.value(key_notfound, "default") == "default");
CHECK(j.value(key_notfound, 0) == 0);
CHECK(j.value(key_notfound, 47) == 47);
CHECK(j.value(key_notfound, integer) == integer);
CHECK(j.value(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().value(key, "default"), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().value(key, str), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
}
SECTION("const char(&)[] key")
{
const char key[] = "foo"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
const char key2[] = "baz"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
const char key_notfound[] = "bar"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
CHECK(j.value(key, "default") == "bar");
CHECK(j.value(key, cpstr) == "bar");
CHECK(j.value(key, castr) == "bar");
CHECK(j.value(key, str) == "bar");
CHECK(j.value(key2, 0) == 42);
CHECK(j.value(key2, 47) == 42);
CHECK(j.value(key2, integer) == 42);
CHECK(j.value(key2, size) == 42);
CHECK(j.value(key_notfound, "default") == "default");
CHECK(j.value(key_notfound, 0) == 0);
CHECK(j.value(key_notfound, 47) == 47);
CHECK(j.value(key_notfound, integer) == integer);
CHECK(j.value(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().value(key, "default"), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().value(key, str), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
}
SECTION("string_t/object_t::key_type key")
{
string_t const key = "foo";
string_t const key2 = "baz";
string_t const key_notfound = "bar";
CHECK(j.value(key, "default") == "bar");
CHECK(j.value(key, cpstr) == "bar");
CHECK(j.value(key, castr) == "bar");
CHECK(j.value(key, str) == "bar");
CHECK(j.value(key2, 0) == 42);
CHECK(j.value(key2, 47) == 42);
CHECK(j.value(key2, integer) == 42);
CHECK(j.value(key2, size) == 42);
CHECK(j.value(key_notfound, "default") == "default");
CHECK(j.value(key_notfound, 0) == 0);
CHECK(j.value(key_notfound, 47) == 47);
CHECK(j.value(key_notfound, integer) == integer);
CHECK(j.value(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().value(key, "default"), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().value(key, str), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
}
#ifdef JSON_HAS_CPP_17
SECTION("std::string_view key")
{
std::string_view const key = "foo";
std::string_view const key2 = "baz";
std::string_view const key_notfound = "bar";
CHECK(j.value(key, "default") == "bar");
CHECK(j.value(key, cpstr) == "bar");
CHECK(j.value(key, castr) == "bar");
CHECK(j.value(key, str) == "bar");
CHECK(j.value(key2, 0) == 42);
CHECK(j.value(key2, 47) == 42);
CHECK(j.value(key2, integer) == 42);
CHECK(j.value(key2, size) == 42);
CHECK(j.value(key_notfound, "default") == "default");
CHECK(j.value(key_notfound, 0) == 0);
CHECK(j.value(key_notfound, 47) == 47);
CHECK(j.value(key_notfound, integer) == integer);
CHECK(j.value(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().value(key, "default"), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().value(key, str), "[json.exception.type_error.306] cannot use value() with null", typename Json::type_error&);
}
#endif
}
SECTION("explicit ValueType")
{
SECTION("literal key")
{
CHECK(j.template value<string_t>("foo", "default") == "bar");
CHECK(j.template value<string_t>("foo", cpstr) == "bar");
CHECK(j.template value<string_t>("foo", castr) == "bar");
CHECK(j.template value<string_t>("foo", str) == "bar");
CHECK(j.template value<number_integer_t>("baz", 0) == 42);
CHECK(j.template value<number_integer_t>("baz", 47) == 42);
CHECK(j.template value<number_integer_t>("baz", integer) == 42);
CHECK(j.template value<std::size_t>("baz", 0) == 42);
CHECK(j.template value<std::size_t>("baz", 47) == 42);
CHECK(j.template value<std::size_t>("baz", size) == 42);
CHECK(j.template value<string_t>("bar", "default") == "default");
CHECK(j.template value<number_integer_t>("bar", 0) == 0);
CHECK(j.template value<number_integer_t>("bar", 47) == 47);
CHECK(j.template value<number_integer_t>("bar", integer) == integer);
CHECK(j.template value<std::size_t>("bar", 0) == 0);
CHECK(j.template value<std::size_t>("bar", 47) == 47);
CHECK(j.template value<std::size_t>("bar", size) == size);
CHECK_THROWS_WITH_AS(Json().template value<string_t>("foo", "default"),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().template value<string_t>("foo", str),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
SECTION("const char * key")
{
const char* key = "foo";
const char* key2 = "baz";
const char* key_notfound = "bar";
CHECK(j.template value<string_t>(key, "default") == "bar");
CHECK(j.template value<string_t>(key, cpstr) == "bar");
CHECK(j.template value<string_t>(key, castr) == "bar");
CHECK(j.template value<string_t>(key, str) == "bar");
CHECK(j.template value<number_integer_t>(key2, 0) == 42);
CHECK(j.template value<number_integer_t>(key2, 47) == 42);
CHECK(j.template value<number_integer_t>(key2, integer) == 42);
CHECK(j.template value<std::size_t>(key2, 0) == 42);
CHECK(j.template value<std::size_t>(key2, 47) == 42);
CHECK(j.template value<std::size_t>(key2, size) == 42);
CHECK(j.template value<string_t>(key_notfound, "default") == "default");
CHECK(j.template value<number_integer_t>(key_notfound, 0) == 0);
CHECK(j.template value<number_integer_t>(key_notfound, 47) == 47);
CHECK(j.template value<number_integer_t>(key_notfound, integer) == integer);
CHECK(j.template value<std::size_t>(key_notfound, 0) == 0);
CHECK(j.template value<std::size_t>(key_notfound, 47) == 47);
CHECK(j.template value<std::size_t>(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, "default"),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, str),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
SECTION("const char(&)[] key")
{
const char key[] = "foo"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
const char key2[] = "baz"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
const char key_notfound[] = "bar"; // NOLINT(hicpp-avoid-c-arrays,modernize-avoid-c-arrays,cppcoreguidelines-avoid-c-arrays)
CHECK(j.template value<string_t>(key, "default") == "bar");
CHECK(j.template value<string_t>(key, cpstr) == "bar");
CHECK(j.template value<string_t>(key, castr) == "bar");
CHECK(j.template value<string_t>(key, str) == "bar");
CHECK(j.template value<number_integer_t>(key2, 0) == 42);
CHECK(j.template value<number_integer_t>(key2, 47) == 42);
CHECK(j.template value<number_integer_t>(key2, integer) == 42);
CHECK(j.template value<std::size_t>(key2, 0) == 42);
CHECK(j.template value<std::size_t>(key2, 47) == 42);
CHECK(j.template value<std::size_t>(key2, size) == 42);
CHECK(j.template value<string_t>(key_notfound, "default") == "default");
CHECK(j.template value<number_integer_t>(key_notfound, 0) == 0);
CHECK(j.template value<number_integer_t>(key_notfound, 47) == 47);
CHECK(j.template value<number_integer_t>(key_notfound, integer) == integer);
CHECK(j.template value<std::size_t>(key_notfound, 0) == 0);
CHECK(j.template value<std::size_t>(key_notfound, 47) == 47);
CHECK(j.template value<std::size_t>(key_notfound, size) == size);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, "default"),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, str),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
SECTION("string_t/object_t::key_type key")
{
string_t const key = "foo";
string_t const key2 = "baz";
string_t const key_notfound = "bar";
CHECK(j.template value<string_t>(key, "default") == "bar");
CHECK(j.template value<string_t>(key, cpstr) == "bar");
CHECK(j.template value<string_t>(key, castr) == "bar");
CHECK(j.template value<string_t>(key, str) == "bar");
CHECK(j.template value<number_integer_t>(key2, 0) == 42);
CHECK(j.template value<number_integer_t>(key2, 47) == 42);
CHECK(j.template value<std::size_t>(key2, 0) == 42);
CHECK(j.template value<std::size_t>(key2, 47) == 42);
CHECK(j.template value<string_t>(key_notfound, "default") == "default");
CHECK(j.template value<number_integer_t>(key_notfound, 0) == 0);
CHECK(j.template value<number_integer_t>(key_notfound, 47) == 47);
CHECK(j.template value<std::size_t>(key_notfound, 0) == 0);
CHECK(j.template value<std::size_t>(key_notfound, 47) == 47);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, "default"),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, str),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
#ifdef JSON_HAS_CPP_17
SECTION("std::string_view key")
{
std::string_view const key = "foo";
std::string_view const key2 = "baz";
std::string_view const key_notfound = "bar";
CHECK(j.template value<string_t>(key, "default") == "bar");
CHECK(j.template value<string_t>(key, cpstr) == "bar");
CHECK(j.template value<string_t>(key, castr) == "bar");
CHECK(j.template value<string_t>(key, str) == "bar");
CHECK(j.template value<number_integer_t>(key2, 0) == 42);
CHECK(j.template value<number_integer_t>(key2, 47) == 42);
CHECK(j.template value<number_integer_t>(key2, integer) == 42);
CHECK(j.template value<std::size_t>(key2, 0) == 42);
CHECK(j.template value<std::size_t>(key2, 47) == 42);
CHECK(j.template value<std::size_t>(key2, size) == 42);
CHECK(j.template value<string_t>(key_notfound, "default") == "default");
CHECK(j.template value<number_integer_t>(key_notfound, 0) == 0);
CHECK(j.template value<number_integer_t>(key_notfound, 47) == 47);
CHECK(j.template value<number_integer_t>(key_notfound, integer) == integer);
CHECK(j.template value<std::size_t>(key_notfound, 0) == 0);
CHECK(j.template value<std::size_t>(key_notfound, 47) == 47);
CHECK(j.template value<std::size_t>(key_notfound, size) == size);
CHECK(j.template value<std::string_view>(key, "default") == "bar");
CHECK(j.template value<std::string_view>(key, cpstr) == "bar");
CHECK(j.template value<std::string_view>(key, castr) == "bar");
CHECK(j.template value<std::string_view>(key, str) == "bar");
CHECK(j.template value<std::string_view>(key_notfound, "default") == "default");
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, "default"),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
CHECK_THROWS_WITH_AS(Json().template value<string_t>(key, str),
"[json.exception.type_error.306] cannot use value() with null",
typename Json::type_error&);
}
#endif
}
}