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reorganization into smaller test units

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This commit is contained in:
Niels 2016-08-04 22:51:08 +02:00
parent 2d3374c8b2
commit 38f562af2a
9 changed files with 2026 additions and 1918 deletions
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2
.travis.yml
View file

@ -25,7 +25,7 @@ matrix:
- touch src/json.hpp
- make json_unit CXXFLAGS="-fprofile-arcs -ftest-coverage -std=c++11 -lstdc++" CXX=$COMPILER
- test/json_unit "*"
- coveralls --exclude test/src/catch.hpp --exclude test/src/unit*.cpp --include src/json.hpp --gcov-options '\-lp' --gcov 'gcov-4.9'
- coveralls --exclude test/src/catch.hpp --exclude test/src/unit-algorithms.cpp --exclude test/src/unit-allocator.cpp --exclude test/src/unit-capacity.cpp --exclude test/src/unit-class_const_iterator.cpp --exclude test/src/unit-class_iterator.cpp --exclude test/src/unit-class_lexer.cpp --exclude test/src/unit-class_parser.cpp --exclude test/src/unit-comparison.cpp --exclude test/src/unit-concepts.cpp --exclude test/src/unit-constructor1.cpp --exclude test/src/unit-constructor2.cpp --exclude test/src/unit-convenience.cpp --exclude test/src/unit-conversions.cpp --exclude test/src/unit-deserialization.cpp --exclude test/src/unit-element_access1.cpp --exclude test/src/unit-element_access2.cpp --exclude test/src/unit-inspection.cpp --exclude test/src/unit-iterator_wrapper.cpp --exclude test/src/unit-iterators1.cpp --exclude test/src/unit-iterators2.cpp --exclude test/src/unit-json_patch.cpp --exclude test/src/unit-json_pointer.cpp --exclude test/src/unit-modifiers.cpp --exclude test/src/unit-pointer_access.cpp --exclude test/src/unit-readme.cpp --exclude test/src/unit-reference_access.cpp --exclude test/src/unit-regression.cpp --exclude test/src/unit-serialization.cpp --exclude test/src/unit-testsuites.cpp --exclude test/src/unit-unicode.cpp --include src/json.hpp --gcov-options '\-lp' --gcov 'gcov-4.9'
env: COMPILER=g++-4.9
- os: linux

9
test/CMakeLists.txt
View file

@ -12,14 +12,17 @@ add_executable(${JSON_UNITTEST_TARGET_NAME}
"src/unit-class_parser.cpp"
"src/unit-comparison.cpp"
"src/unit-concepts.cpp"
"src/unit-constructor.cpp"
"src/unit-constructor1.cpp"
"src/unit-constructor2.cpp"
"src/unit-convenience.cpp"
"src/unit-conversions.cpp"
"src/unit-deserialization.cpp"
"src/unit-element_access.cpp"
"src/unit-element_access1.cpp"
"src/unit-element_access2.cpp"
"src/unit-inspection.cpp"
"src/unit-iterator_wrapper.cpp"
"src/unit-iterators.cpp"
"src/unit-iterators1.cpp"
"src/unit-iterators2.cpp"
"src/unit-json_patch.cpp"
"src/unit-json_pointer.cpp"
"src/unit-modifiers.cpp"

9
test/Makefile
View file

@ -16,14 +16,17 @@ SOURCES = src/unit.cpp \
src/unit-class_parser.cpp \
src/unit-comparison.cpp \
src/unit-concepts.cpp \
src/unit-constructor.cpp \
src/unit-constructor1.cpp \
src/unit-constructor2.cpp \
src/unit-convenience.cpp \
src/unit-conversions.cpp \
src/unit-deserialization.cpp \
src/unit-element_access.cpp \
src/unit-element_access1.cpp \
src/unit-element_access2.cpp \
src/unit-inspection.cpp \
src/unit-iterator_wrapper.cpp \
src/unit-iterators.cpp \
src/unit-iterators1.cpp \
src/unit-iterators2.cpp \
src/unit-json_patch.cpp \
src/unit-json_pointer.cpp \
src/unit-modifiers.cpp \

159
test/src/unit-constructor.cpp → test/src/unit-constructor1.cpp
View file

@ -1309,162 +1309,3 @@ TEST_CASE("constructors")
}
}
}
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 (unsigned)")
{
json j(42u);
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", 42u}, {"b", 42.23}, {"c", 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;
k = j;
CHECK(j == k);
}
SECTION("array")
{
json j {"foo", 1, 42.23, false};
json k;
k = j;
CHECK(j == k);
}
SECTION("null")
{
json j(nullptr);
json k;
k = j;
CHECK(j == k);
}
SECTION("boolean")
{
json j(true);
json k;
k = j;
CHECK(j == k);
}
SECTION("string")
{
json j("Hello world");
json k;
k = j;
CHECK(j == k);
}
SECTION("number (integer)")
{
json j(42);
json k;
k = j;
CHECK(j == k);
}
SECTION("number (unsigned)")
{
json j(42u);
json k;
k = j;
CHECK(j == k);
}
SECTION("number (floating-point)")
{
json j(42.23);
json k;
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, 1u, false, 23.42};
delete j;
}
SECTION("string")
{
auto j = new json("Hello world");
delete j;
}
}
}

191
test/src/unit-constructor2.cpp Normal file
View file

@ -0,0 +1,191 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 2.0.2
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
Copyright (c) 2013-2016 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "catch.hpp"
#include "json.hpp"
using nlohmann::json;
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 (unsigned)")
{
json j(42u);
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", 42u}, {"b", 42.23}, {"c", 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;
k = j;
CHECK(j == k);
}
SECTION("array")
{
json j {"foo", 1, 42.23, false};
json k;
k = j;
CHECK(j == k);
}
SECTION("null")
{
json j(nullptr);
json k;
k = j;
CHECK(j == k);
}
SECTION("boolean")
{
json j(true);
json k;
k = j;
CHECK(j == k);
}
SECTION("string")
{
json j("Hello world");
json k;
k = j;
CHECK(j == k);
}
SECTION("number (integer)")
{
json j(42);
json k;
k = j;
CHECK(j == k);
}
SECTION("number (unsigned)")
{
json j(42u);
json k;
k = j;
CHECK(j == k);
}
SECTION("number (floating-point)")
{
json j(42.23);
json k;
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, 1u, false, 23.42};
delete j;
}
SECTION("string")
{
auto j = new json("Hello world");
delete j;
}
}
}

947
test/src/unit-element_access1.cpp Normal file
View file

@ -0,0 +1,947 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 2.0.2
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
Copyright (c) 2013-2016 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "catch.hpp"
#include "json.hpp"
using nlohmann::json;
TEST_CASE("element access 1")
{
SECTION("array")
{
json j = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
const json j_const = j;
SECTION("access specified element with bounds checking")
{
SECTION("access within bounds")
{
CHECK(j.at(0) == json(1));
CHECK(j.at(1) == json(1u));
CHECK(j.at(2) == json(true));
CHECK(j.at(3) == json(nullptr));
CHECK(j.at(4) == json("string"));
CHECK(j.at(5) == json(42.23));
CHECK(j.at(6) == json(json::object()));
CHECK(j.at(7) == json({1, 2, 3}));
CHECK(j_const.at(0) == json(1));
CHECK(j_const.at(1) == json(1u));
CHECK(j_const.at(2) == json(true));
CHECK(j_const.at(3) == json(nullptr));
CHECK(j_const.at(4) == json("string"));
CHECK(j_const.at(5) == json(42.23));
CHECK(j_const.at(6) == json(json::object()));
CHECK(j_const.at(7) == json({1, 2, 3}));
}
SECTION("access outside bounds")
{
CHECK_THROWS_AS(j.at(8), std::out_of_range);
CHECK_THROWS_AS(j_const.at(8), std::out_of_range);
CHECK_THROWS_WITH(j.at(8), "array index 8 is out of range");
CHECK_THROWS_WITH(j_const.at(8), "array index 8 is out of range");
}
SECTION("access on non-array type")
{
SECTION("null")
{
json j_nonarray(json::value_t::null);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with null");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with null");
}
SECTION("boolean")
{
json j_nonarray(json::value_t::boolean);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with boolean");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with boolean");
}
SECTION("string")
{
json j_nonarray(json::value_t::string);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with string");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with string");
}
SECTION("object")
{
json j_nonarray(json::value_t::object);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with object");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with object");
}
SECTION("number (integer)")
{
json j_nonarray(json::value_t::number_integer);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
SECTION("number (unsigned)")
{
json j_nonarray(json::value_t::number_unsigned);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
SECTION("number (floating-point)")
{
json j_nonarray(json::value_t::number_float);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
}
}
SECTION("front and back")
{
CHECK(j.front() == json(1));
CHECK(j_const.front() == json(1));
CHECK(j.back() == json({1, 2, 3}));
CHECK(j_const.back() == json({1, 2, 3}));
}
SECTION("access specified element")
{
SECTION("access within bounds")
{
CHECK(j[0] == json(1));
CHECK(j[1] == json(1u));
CHECK(j[2] == json(true));
CHECK(j[3] == json(nullptr));
CHECK(j[4] == json("string"));
CHECK(j[5] == json(42.23));
CHECK(j[6] == json(json::object()));
CHECK(j[7] == json({1, 2, 3}));
CHECK(j_const[0] == json(1));
CHECK(j_const[1] == json(1u));
CHECK(j_const[2] == json(true));
CHECK(j_const[3] == json(nullptr));
CHECK(j_const[4] == json("string"));
CHECK(j_const[5] == json(42.23));
CHECK(j_const[6] == json(json::object()));
CHECK(j_const[7] == json({1, 2, 3}));
}
SECTION("access on non-array type")
{
SECTION("null")
{
SECTION("standard tests")
{
json j_nonarray(json::value_t::null);
const json j_nonarray_const(j_nonarray);
CHECK_NOTHROW(j_nonarray[0]);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with null");
}
SECTION("implicit transformation to properly filled array")
{
json j_nonarray;
j_nonarray[3] = 42;
CHECK(j_nonarray == json({nullptr, nullptr, nullptr, 42}));
}
}
SECTION("boolean")
{
json j_nonarray(json::value_t::boolean);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with boolean");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with boolean");
}
SECTION("string")
{
json j_nonarray(json::value_t::string);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with string");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with string");
}
SECTION("object")
{
json j_nonarray(json::value_t::object);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with object");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with object");
}
SECTION("number (integer)")
{
json j_nonarray(json::value_t::number_integer);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
SECTION("number (unsigned)")
{
json j_nonarray(json::value_t::number_unsigned);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
SECTION("number (floating-point)")
{
json j_nonarray(json::value_t::number_float);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
}
}
SECTION("remove specified element")
{
SECTION("remove element by index")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(0);
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(1);
CHECK(jarray == json({1, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(2);
CHECK(jarray == json({1, 1u, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(3);
CHECK(jarray == json({1, 1u, true, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(4);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(5);
CHECK(jarray == json({1, 1u, true, nullptr, "string", json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(6);
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(7);
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object()}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
CHECK_THROWS_AS(jarray.erase(8), std::out_of_range);
CHECK_THROWS_WITH(jarray.erase(8), "array index 8 is out of range");
}
}
SECTION("remove element by iterator")
{
SECTION("erase(begin())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin());
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1u));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin());
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1u));
}
}
SECTION("erase(begin(), end())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin(), jarray.end());
CHECK(jarray == json::array());
CHECK(it2 == jarray.end());
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin(), jarray.cend());
CHECK(jarray == json::array());
CHECK(it2 == jarray.cend());
}
}
SECTION("erase(begin(), begin())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin(), jarray.begin());
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin(), jarray.cbegin());
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1));
}
}
SECTION("erase at offset")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it = jarray.begin() + 4;
json::iterator it2 = jarray.erase(it);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(42.23));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it = jarray.cbegin() + 4;
json::const_iterator it2 = jarray.erase(it);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(42.23));
}
}
SECTION("erase subrange")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin() + 3, jarray.begin() + 6);
CHECK(jarray == json({1, 1u, true, json::object(), {1, 2, 3}}));
CHECK(*it2 == json::object());
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin() + 3, jarray.cbegin() + 6);
CHECK(jarray == json({1, 1u, true, json::object(), {1, 2, 3}}));
CHECK(*it2 == json::object());
}
}
SECTION("different arrays")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json jarray2 = {"foo", "bar"};
CHECK_THROWS_AS(jarray.erase(jarray2.begin()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray.begin(), jarray2.end()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.begin(), jarray.end()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.begin(), jarray2.end()), std::domain_error);
CHECK_THROWS_WITH(jarray.erase(jarray2.begin()), "iterator does not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray.begin(), jarray2.end()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.begin(), jarray.end()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.begin(), jarray2.end()),
"iterators do not fit current value");
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json jarray2 = {"foo", "bar"};
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray.cbegin(), jarray2.cend()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin(), jarray.cend()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin(), jarray2.cend()), std::domain_error);
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin()), "iterator does not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray.cbegin(), jarray2.cend()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin(), jarray.cend()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin(), jarray2.cend()),
"iterators do not fit current value");
}
}
}
SECTION("remove element by index in non-array type")
{
SECTION("null")
{
json j_nonobject(json::value_t::null);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with null");
}
SECTION("boolean")
{
json j_nonobject(json::value_t::boolean);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with boolean");
}
SECTION("string")
{
json j_nonobject(json::value_t::string);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with string");
}
SECTION("object")
{
json j_nonobject(json::value_t::object);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with object");
}
SECTION("number (integer)")
{
json j_nonobject(json::value_t::number_integer);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
SECTION("number (unsigned)")
{
json j_nonobject(json::value_t::number_unsigned);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
SECTION("number (floating-point)")
{
json j_nonobject(json::value_t::number_float);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
}
}
}
SECTION("other values")
{
SECTION("front and back")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
CHECK_THROWS_WITH(j.front(), "cannot get value");
CHECK_THROWS_WITH(j.back(), "cannot get value");
}
{
const json j{};
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
CHECK_THROWS_WITH(j.front(), "cannot get value");
CHECK_THROWS_WITH(j.back(), "cannot get value");
}
}
SECTION("string")
{
{
json j = "foo";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = "bar";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = true;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 17u;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
}
SECTION("erase with one valid iterator")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.erase(j.begin()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin()), "cannot use erase() with null");
}
{
json j;
CHECK_THROWS_AS(j.erase(j.cbegin()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin()), "cannot use erase() with null");
}
}
SECTION("string")
{
{
json j = "foo";
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = "bar";
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (boolean)")
{
{
json j = false;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = true;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (integer)")
{
{
json j = 17;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17u;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 23.42;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
}
SECTION("erase with one invalid iterator")
{
SECTION("string")
{
{
json j = "foo";
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = "bar";
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = true;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
}
SECTION("erase with two valid iterators")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.erase(j.begin(), j.end()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin(), j.end()), "cannot use erase() with null");
}
{
json j;
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cend()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cend()), "cannot use erase() with null");
}
}
SECTION("string")
{
{
json j = "foo";
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = "bar";
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (boolean)")
{
{
json j = false;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = true;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (integer)")
{
{
json j = 17;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17u;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 23.42;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
}
SECTION("erase with two invalid iterators")
{
SECTION("string")
{
{
json j = "foo";
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = "bar";
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = true;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
}
}
}

914
test/src/unit-element_access.cpp → test/src/unit-element_access2.cpp
View file

@ -31,466 +31,8 @@ SOFTWARE.
#include "json.hpp"
using nlohmann::json;
TEST_CASE("element access")
TEST_CASE("element access 2")
{
SECTION("array")
{
json j = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
const json j_const = j;
SECTION("access specified element with bounds checking")
{
SECTION("access within bounds")
{
CHECK(j.at(0) == json(1));
CHECK(j.at(1) == json(1u));
CHECK(j.at(2) == json(true));
CHECK(j.at(3) == json(nullptr));
CHECK(j.at(4) == json("string"));
CHECK(j.at(5) == json(42.23));
CHECK(j.at(6) == json(json::object()));
CHECK(j.at(7) == json({1, 2, 3}));
CHECK(j_const.at(0) == json(1));
CHECK(j_const.at(1) == json(1u));
CHECK(j_const.at(2) == json(true));
CHECK(j_const.at(3) == json(nullptr));
CHECK(j_const.at(4) == json("string"));
CHECK(j_const.at(5) == json(42.23));
CHECK(j_const.at(6) == json(json::object()));
CHECK(j_const.at(7) == json({1, 2, 3}));
}
SECTION("access outside bounds")
{
CHECK_THROWS_AS(j.at(8), std::out_of_range);
CHECK_THROWS_AS(j_const.at(8), std::out_of_range);
CHECK_THROWS_WITH(j.at(8), "array index 8 is out of range");
CHECK_THROWS_WITH(j_const.at(8), "array index 8 is out of range");
}
SECTION("access on non-array type")
{
SECTION("null")
{
json j_nonarray(json::value_t::null);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with null");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with null");
}
SECTION("boolean")
{
json j_nonarray(json::value_t::boolean);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with boolean");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with boolean");
}
SECTION("string")
{
json j_nonarray(json::value_t::string);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with string");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with string");
}
SECTION("object")
{
json j_nonarray(json::value_t::object);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with object");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with object");
}
SECTION("number (integer)")
{
json j_nonarray(json::value_t::number_integer);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
SECTION("number (unsigned)")
{
json j_nonarray(json::value_t::number_unsigned);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
SECTION("number (floating-point)")
{
json j_nonarray(json::value_t::number_float);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray.at(0), std::domain_error);
CHECK_THROWS_AS(j_nonarray_const.at(0), std::domain_error);
CHECK_THROWS_WITH(j_nonarray.at(0), "cannot use at() with number");
CHECK_THROWS_WITH(j_nonarray_const.at(0), "cannot use at() with number");
}
}
}
SECTION("front and back")
{
CHECK(j.front() == json(1));
CHECK(j_const.front() == json(1));
CHECK(j.back() == json({1, 2, 3}));
CHECK(j_const.back() == json({1, 2, 3}));
}
SECTION("access specified element")
{
SECTION("access within bounds")
{
CHECK(j[0] == json(1));
CHECK(j[1] == json(1u));
CHECK(j[2] == json(true));
CHECK(j[3] == json(nullptr));
CHECK(j[4] == json("string"));
CHECK(j[5] == json(42.23));
CHECK(j[6] == json(json::object()));
CHECK(j[7] == json({1, 2, 3}));
CHECK(j_const[0] == json(1));
CHECK(j_const[1] == json(1u));
CHECK(j_const[2] == json(true));
CHECK(j_const[3] == json(nullptr));
CHECK(j_const[4] == json("string"));
CHECK(j_const[5] == json(42.23));
CHECK(j_const[6] == json(json::object()));
CHECK(j_const[7] == json({1, 2, 3}));
}
SECTION("access on non-array type")
{
SECTION("null")
{
SECTION("standard tests")
{
json j_nonarray(json::value_t::null);
const json j_nonarray_const(j_nonarray);
CHECK_NOTHROW(j_nonarray[0]);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with null");
}
SECTION("implicit transformation to properly filled array")
{
json j_nonarray;
j_nonarray[3] = 42;
CHECK(j_nonarray == json({nullptr, nullptr, nullptr, 42}));
}
}
SECTION("boolean")
{
json j_nonarray(json::value_t::boolean);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with boolean");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with boolean");
}
SECTION("string")
{
json j_nonarray(json::value_t::string);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with string");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with string");
}
SECTION("object")
{
json j_nonarray(json::value_t::object);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with object");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with object");
}
SECTION("number (integer)")
{
json j_nonarray(json::value_t::number_integer);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
SECTION("number (unsigned)")
{
json j_nonarray(json::value_t::number_unsigned);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
SECTION("number (floating-point)")
{
json j_nonarray(json::value_t::number_float);
const json j_nonarray_const(j_nonarray);
CHECK_THROWS_AS(j_nonarray[0], std::domain_error);
CHECK_THROWS_AS(j_nonarray_const[0], std::domain_error);
CHECK_THROWS_WITH(j_nonarray[0], "cannot use operator[] with number");
CHECK_THROWS_WITH(j_nonarray_const[0], "cannot use operator[] with number");
}
}
}
SECTION("remove specified element")
{
SECTION("remove element by index")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(0);
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(1);
CHECK(jarray == json({1, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(2);
CHECK(jarray == json({1, 1u, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(3);
CHECK(jarray == json({1, 1u, true, "string", 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(4);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(5);
CHECK(jarray == json({1, 1u, true, nullptr, "string", json::object(), {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(6);
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, {1, 2, 3}}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
jarray.erase(7);
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object()}));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
CHECK_THROWS_AS(jarray.erase(8), std::out_of_range);
CHECK_THROWS_WITH(jarray.erase(8), "array index 8 is out of range");
}
}
SECTION("remove element by iterator")
{
SECTION("erase(begin())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin());
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1u));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin());
CHECK(jarray == json({1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1u));
}
}
SECTION("erase(begin(), end())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin(), jarray.end());
CHECK(jarray == json::array());
CHECK(it2 == jarray.end());
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin(), jarray.cend());
CHECK(jarray == json::array());
CHECK(it2 == jarray.cend());
}
}
SECTION("erase(begin(), begin())")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin(), jarray.begin());
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin(), jarray.cbegin());
CHECK(jarray == json({1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(1));
}
}
SECTION("erase at offset")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it = jarray.begin() + 4;
json::iterator it2 = jarray.erase(it);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(42.23));
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it = jarray.cbegin() + 4;
json::const_iterator it2 = jarray.erase(it);
CHECK(jarray == json({1, 1u, true, nullptr, 42.23, json::object(), {1, 2, 3}}));
CHECK(*it2 == json(42.23));
}
}
SECTION("erase subrange")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::iterator it2 = jarray.erase(jarray.begin() + 3, jarray.begin() + 6);
CHECK(jarray == json({1, 1u, true, json::object(), {1, 2, 3}}));
CHECK(*it2 == json::object());
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json::const_iterator it2 = jarray.erase(jarray.cbegin() + 3, jarray.cbegin() + 6);
CHECK(jarray == json({1, 1u, true, json::object(), {1, 2, 3}}));
CHECK(*it2 == json::object());
}
}
SECTION("different arrays")
{
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json jarray2 = {"foo", "bar"};
CHECK_THROWS_AS(jarray.erase(jarray2.begin()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray.begin(), jarray2.end()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.begin(), jarray.end()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.begin(), jarray2.end()), std::domain_error);
CHECK_THROWS_WITH(jarray.erase(jarray2.begin()), "iterator does not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray.begin(), jarray2.end()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.begin(), jarray.end()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.begin(), jarray2.end()),
"iterators do not fit current value");
}
{
json jarray = {1, 1u, true, nullptr, "string", 42.23, json::object(), {1, 2, 3}};
json jarray2 = {"foo", "bar"};
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray.cbegin(), jarray2.cend()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin(), jarray.cend()), std::domain_error);
CHECK_THROWS_AS(jarray.erase(jarray2.cbegin(), jarray2.cend()), std::domain_error);
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin()), "iterator does not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray.cbegin(), jarray2.cend()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin(), jarray.cend()),
"iterators do not fit current value");
CHECK_THROWS_WITH(jarray.erase(jarray2.cbegin(), jarray2.cend()),
"iterators do not fit current value");
}
}
}
SECTION("remove element by index in non-array type")
{
SECTION("null")
{
json j_nonobject(json::value_t::null);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with null");
}
SECTION("boolean")
{
json j_nonobject(json::value_t::boolean);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with boolean");
}
SECTION("string")
{
json j_nonobject(json::value_t::string);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with string");
}
SECTION("object")
{
json j_nonobject(json::value_t::object);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with object");
}
SECTION("number (integer)")
{
json j_nonobject(json::value_t::number_integer);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
SECTION("number (unsigned)")
{
json j_nonobject(json::value_t::number_unsigned);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
SECTION("number (floating-point)")
{
json j_nonobject(json::value_t::number_float);
CHECK_THROWS_AS(j_nonobject.erase(0), std::domain_error);
CHECK_THROWS_WITH(j_nonobject.erase(0), "cannot use erase() with number");
}
}
}
}
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}}};
@ -1414,458 +956,4 @@ TEST_CASE("element access")
}
}
}
SECTION("other values")
{
SECTION("front and back")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
CHECK_THROWS_WITH(j.front(), "cannot get value");
CHECK_THROWS_WITH(j.back(), "cannot get value");
}
{
const json j{};
CHECK_THROWS_AS(j.front(), std::out_of_range);
CHECK_THROWS_AS(j.back(), std::out_of_range);
CHECK_THROWS_WITH(j.front(), "cannot get value");
CHECK_THROWS_WITH(j.back(), "cannot get value");
}
}
SECTION("string")
{
{
json j = "foo";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = "bar";
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = true;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 17;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 17u;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
{
const json j = 23.42;
CHECK(j.front() == j);
CHECK(j.back() == j);
}
}
}
SECTION("erase with one valid iterator")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.erase(j.begin()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin()), "cannot use erase() with null");
}
{
json j;
CHECK_THROWS_AS(j.erase(j.cbegin()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin()), "cannot use erase() with null");
}
}
SECTION("string")
{
{
json j = "foo";
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = "bar";
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (boolean)")
{
{
json j = false;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = true;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (integer)")
{
{
json j = 17;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17u;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
json::iterator it = j.erase(j.begin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 23.42;
json::const_iterator it = j.erase(j.cbegin());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
}
SECTION("erase with one invalid iterator")
{
SECTION("string")
{
{
json j = "foo";
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = "bar";
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = true;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.end()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end()), "iterator out of range");
}
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.cend()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend()), "iterator out of range");
}
}
}
SECTION("erase with two valid iterators")
{
SECTION("null")
{
{
json j;
CHECK_THROWS_AS(j.erase(j.begin(), j.end()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.begin(), j.end()), "cannot use erase() with null");
}
{
json j;
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cend()), std::domain_error);
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cend()), "cannot use erase() with null");
}
}
SECTION("string")
{
{
json j = "foo";
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = "bar";
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (boolean)")
{
{
json j = false;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = true;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (integer)")
{
{
json j = 17;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 17u;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
json::iterator it = j.erase(j.begin(), j.end());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
{
json j = 23.42;
json::const_iterator it = j.erase(j.cbegin(), j.cend());
CHECK(j.type() == json::value_t::null);
CHECK(it == j.end());
}
}
}
SECTION("erase with two invalid iterators")
{
SECTION("string")
{
{
json j = "foo";
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = "bar";
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (boolean)")
{
{
json j = false;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = true;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (integer)")
{
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 17;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (unsigned)")
{
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 17u;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
SECTION("number (floating point)")
{
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.end(), j.end()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.begin(), j.begin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.end(), j.end()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.begin(), j.begin()), "iterators out of range");
}
{
json j = 23.42;
CHECK_THROWS_AS(j.erase(j.cend(), j.cend()), std::out_of_range);
CHECK_THROWS_AS(j.erase(j.cbegin(), j.cbegin()), std::out_of_range);
CHECK_THROWS_WITH(j.erase(j.cend(), j.cend()), "iterators out of range");
CHECK_THROWS_WITH(j.erase(j.cbegin(), j.cbegin()), "iterators out of range");
}
}
}
}
}

840
test/src/unit-iterators.cpp → test/src/unit-iterators1.cpp
View file

@ -32,7 +32,7 @@ SOFTWARE.
#include "json.hpp"
using nlohmann::json;
TEST_CASE("iterators")
TEST_CASE("iterators 1")
{
SECTION("basic behavior")
{
@ -1511,842 +1511,4 @@ TEST_CASE("iterators")
}
}
}
SECTION("iterator comparisons")
{
json j_values = {nullptr, true, 42, 42u, 23.23, {{"one", 1}, {"two", 2}}, {1, 2, 3, 4, 5}, "Hello, world"};
for (json& j : j_values)
{
auto it1 = j.begin();
auto it2 = j.begin();
auto it3 = j.begin();
++it2;
++it3;
++it3;
auto it1_c = j.cbegin();
auto it2_c = j.cbegin();
auto it3_c = j.cbegin();
++it2_c;
++it3_c;
++it3_c;
// comparison: equal
{
CHECK(it1 == it1);
CHECK(not (it1 == it2));
CHECK(not (it1 == it3));
CHECK(not (it2 == it3));
CHECK(it1_c == it1_c);
CHECK(not (it1_c == it2_c));
CHECK(not (it1_c == it3_c));
CHECK(not (it2_c == it3_c));
}
// comparison: not equal
{
// check definition
CHECK( (it1 != it1) == not(it1 == it1) );
CHECK( (it1 != it2) == not(it1 == it2) );
CHECK( (it1 != it3) == not(it1 == it3) );
CHECK( (it2 != it3) == not(it2 == it3) );
CHECK( (it1_c != it1_c) == not(it1_c == it1_c) );
CHECK( (it1_c != it2_c) == not(it1_c == it2_c) );
CHECK( (it1_c != it3_c) == not(it1_c == it3_c) );
CHECK( (it2_c != it3_c) == not(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 < it1, std::domain_error);
CHECK_THROWS_AS(it1 < it2, std::domain_error);
CHECK_THROWS_AS(it2 < it3, std::domain_error);
CHECK_THROWS_AS(it1 < it3, std::domain_error);
CHECK_THROWS_AS(it1_c < it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c < it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 < it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c < it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it3_c, "cannot compare order of object iterators");
}
else
{
CHECK(not (it1 < it1));
CHECK(it1 < it2);
CHECK(it1 < it3);
CHECK(it2 < it3);
CHECK(not (it1_c < it1_c));
CHECK(it1_c < it2_c);
CHECK(it1_c < it3_c);
CHECK(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 <= it1, std::domain_error);
CHECK_THROWS_AS(it1 <= it2, std::domain_error);
CHECK_THROWS_AS(it2 <= it3, std::domain_error);
CHECK_THROWS_AS(it1 <= it3, std::domain_error);
CHECK_THROWS_AS(it1_c <= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c <= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 <= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c <= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 <= it1) == not(it1 < it1) );
CHECK( (it1 <= it2) == not(it2 < it1) );
CHECK( (it1 <= it3) == not(it3 < it1) );
CHECK( (it2 <= it3) == not(it3 < it2) );
CHECK( (it1_c <= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c <= it2_c) == not(it2_c < it1_c) );
CHECK( (it1_c <= it3_c) == not(it3_c < it1_c) );
CHECK( (it2_c <= it3_c) == not(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 > it1, std::domain_error);
CHECK_THROWS_AS(it1 > it2, std::domain_error);
CHECK_THROWS_AS(it2 > it3, std::domain_error);
CHECK_THROWS_AS(it1 > it3, std::domain_error);
CHECK_THROWS_AS(it1_c > it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c > it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 > it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c > it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 > it1) == (it1 < it1) );
CHECK( (it1 > it2) == (it2 < it1) );
CHECK( (it1 > it3) == (it3 < it1) );
CHECK( (it2 > it3) == (it3 < it2) );
CHECK( (it1_c > it1_c) == (it1_c < it1_c) );
CHECK( (it1_c > it2_c) == (it2_c < it1_c) );
CHECK( (it1_c > it3_c) == (it3_c < it1_c) );
CHECK( (it2_c > it3_c) == (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 >= it1, std::domain_error);
CHECK_THROWS_AS(it1 >= it2, std::domain_error);
CHECK_THROWS_AS(it2 >= it3, std::domain_error);
CHECK_THROWS_AS(it1 >= it3, std::domain_error);
CHECK_THROWS_AS(it1_c >= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c >= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 >= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c >= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 >= it1) == not(it1 < it1) );
CHECK( (it1 >= it2) == not(it1 < it2) );
CHECK( (it1 >= it3) == not(it1 < it3) );
CHECK( (it2 >= it3) == not(it2 < it3) );
CHECK( (it1_c >= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c >= it2_c) == not(it1_c < it2_c) );
CHECK( (it1_c >= it3_c) == not(it1_c < it3_c) );
CHECK( (it2_c >= it3_c) == not(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
CHECK_THROWS_AS(j.begin() == k.begin(), std::domain_error);
CHECK_THROWS_AS(j.cbegin() == k.cbegin(), std::domain_error);
CHECK_THROWS_WITH(j.begin() == k.begin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.cbegin() == k.cbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_AS(j.begin() < k.begin(), std::domain_error);
CHECK_THROWS_AS(j.cbegin() < k.cbegin(), std::domain_error);
CHECK_THROWS_WITH(j.begin() < k.begin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.cbegin() < k.cbegin(), "cannot compare iterators of different containers");
}
}
}
}
SECTION("iterator arithmetic")
{
json j_object = {{"one", 1}, {"two", 2}, {"three", 3}};
json j_array = {1, 2, 3, 4, 5, 6};
json j_null = nullptr;
json j_value = 42;
SECTION("addition and subtraction")
{
SECTION("object")
{
{
auto it = j_object.begin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.begin();
it += 3;
CHECK((j_array.begin() + 3) == it);
CHECK((it - 3) == j_array.begin());
CHECK((it - j_array.begin()) == 3);
CHECK(*it == json(4));
it -= 2;
CHECK(*it == json(2));
}
{
auto it = j_array.cbegin();
it += 3;
CHECK((j_array.cbegin() + 3) == it);
CHECK((it - 3) == j_array.cbegin());
CHECK((it - j_array.cbegin()) == 3);
CHECK(*it == json(4));
it -= 2;
CHECK(*it == json(2));
}
}
SECTION("null")
{
{
auto it = j_null.begin();
it += 3;
CHECK((j_null.begin() + 3) == it);
CHECK((it - 3) == j_null.begin());
CHECK((it - j_null.begin()) == 3);
CHECK(it != j_null.end());
it -= 3;
CHECK(it == j_null.end());
}
{
auto it = j_null.cbegin();
it += 3;
CHECK((j_null.cbegin() + 3) == it);
CHECK((it - 3) == j_null.cbegin());
CHECK((it - j_null.cbegin()) == 3);
CHECK(it != j_null.cend());
it -= 3;
CHECK(it == j_null.cend());
}
}
SECTION("value")
{
{
auto it = j_value.begin();
it += 3;
CHECK((j_value.begin() + 3) == it);
CHECK((it - 3) == j_value.begin());
CHECK((it - j_value.begin()) == 3);
CHECK(it != j_value.end());
it -= 3;
CHECK(*it == json(42));
}
{
auto it = j_value.cbegin();
it += 3;
CHECK((j_value.cbegin() + 3) == it);
CHECK((it - 3) == j_value.cbegin());
CHECK((it - j_value.cbegin()) == 3);
CHECK(it != j_value.cend());
it -= 3;
CHECK(*it == json(42));
}
}
}
SECTION("subscript operator")
{
SECTION("object")
{
{
auto it = j_object.begin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use operator[] for object iterators");
CHECK_THROWS_WITH(it[1], "cannot use operator[] for object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use operator[] for object iterators");
CHECK_THROWS_WITH(it[1], "cannot use operator[] for object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.begin();
CHECK(it[0] == json(1));
CHECK(it[1] == json(2));
CHECK(it[2] == json(3));
CHECK(it[3] == json(4));
CHECK(it[4] == json(5));
CHECK(it[5] == json(6));
}
{
auto it = j_array.cbegin();
CHECK(it[0] == json(1));
CHECK(it[1] == json(2));
CHECK(it[2] == json(3));
CHECK(it[3] == json(4));
CHECK(it[4] == json(5));
CHECK(it[5] == json(6));
}
}
SECTION("null")
{
{
auto it = j_null.begin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_null.cbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
SECTION("value")
{
{
auto it = j_value.begin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_value.cbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
}
}
SECTION("reverse iterator comparisons")
{
json j_values = {nullptr, true, 42, 42u, 23.23, {{"one", 1}, {"two", 2}}, {1, 2, 3, 4, 5}, "Hello, world"};
for (json& j : j_values)
{
auto it1 = j.rbegin();
auto it2 = j.rbegin();
auto it3 = j.rbegin();
++it2;
++it3;
++it3;
auto it1_c = j.crbegin();
auto it2_c = j.crbegin();
auto it3_c = j.crbegin();
++it2_c;
++it3_c;
++it3_c;
// comparison: equal
{
CHECK(it1 == it1);
CHECK(not (it1 == it2));
CHECK(not (it1 == it3));
CHECK(not (it2 == it3));
CHECK(it1_c == it1_c);
CHECK(not (it1_c == it2_c));
CHECK(not (it1_c == it3_c));
CHECK(not (it2_c == it3_c));
}
// comparison: not equal
{
// check definition
CHECK( (it1 != it1) == not(it1 == it1) );
CHECK( (it1 != it2) == not(it1 == it2) );
CHECK( (it1 != it3) == not(it1 == it3) );
CHECK( (it2 != it3) == not(it2 == it3) );
CHECK( (it1_c != it1_c) == not(it1_c == it1_c) );
CHECK( (it1_c != it2_c) == not(it1_c == it2_c) );
CHECK( (it1_c != it3_c) == not(it1_c == it3_c) );
CHECK( (it2_c != it3_c) == not(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 < it1, std::domain_error);
CHECK_THROWS_AS(it1 < it2, std::domain_error);
CHECK_THROWS_AS(it2 < it3, std::domain_error);
CHECK_THROWS_AS(it1 < it3, std::domain_error);
CHECK_THROWS_AS(it1_c < it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c < it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 < it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c < it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it3_c, "cannot compare order of object iterators");
}
else
{
CHECK(not (it1 < it1));
CHECK(it1 < it2);
CHECK(it1 < it3);
CHECK(it2 < it3);
CHECK(not (it1_c < it1_c));
CHECK(it1_c < it2_c);
CHECK(it1_c < it3_c);
CHECK(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 <= it1, std::domain_error);
CHECK_THROWS_AS(it1 <= it2, std::domain_error);
CHECK_THROWS_AS(it2 <= it3, std::domain_error);
CHECK_THROWS_AS(it1 <= it3, std::domain_error);
CHECK_THROWS_AS(it1_c <= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c <= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 <= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c <= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 <= it1) == not(it1 < it1) );
CHECK( (it1 <= it2) == not(it2 < it1) );
CHECK( (it1 <= it3) == not(it3 < it1) );
CHECK( (it2 <= it3) == not(it3 < it2) );
CHECK( (it1_c <= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c <= it2_c) == not(it2_c < it1_c) );
CHECK( (it1_c <= it3_c) == not(it3_c < it1_c) );
CHECK( (it2_c <= it3_c) == not(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 > it1, std::domain_error);
CHECK_THROWS_AS(it1 > it2, std::domain_error);
CHECK_THROWS_AS(it2 > it3, std::domain_error);
CHECK_THROWS_AS(it1 > it3, std::domain_error);
CHECK_THROWS_AS(it1_c > it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c > it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 > it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c > it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 > it1) == (it1 < it1) );
CHECK( (it1 > it2) == (it2 < it1) );
CHECK( (it1 > it3) == (it3 < it1) );
CHECK( (it2 > it3) == (it3 < it2) );
CHECK( (it1_c > it1_c) == (it1_c < it1_c) );
CHECK( (it1_c > it2_c) == (it2_c < it1_c) );
CHECK( (it1_c > it3_c) == (it3_c < it1_c) );
CHECK( (it2_c > it3_c) == (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 >= it1, std::domain_error);
CHECK_THROWS_AS(it1 >= it2, std::domain_error);
CHECK_THROWS_AS(it2 >= it3, std::domain_error);
CHECK_THROWS_AS(it1 >= it3, std::domain_error);
CHECK_THROWS_AS(it1_c >= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c >= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 >= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c >= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 >= it1) == not(it1 < it1) );
CHECK( (it1 >= it2) == not(it1 < it2) );
CHECK( (it1 >= it3) == not(it1 < it3) );
CHECK( (it2 >= it3) == not(it2 < it3) );
CHECK( (it1_c >= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c >= it2_c) == not(it1_c < it2_c) );
CHECK( (it1_c >= it3_c) == not(it1_c < it3_c) );
CHECK( (it2_c >= it3_c) == not(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
CHECK_THROWS_AS(j.rbegin() == k.rbegin(), std::domain_error);
CHECK_THROWS_AS(j.crbegin() == k.crbegin(), std::domain_error);
CHECK_THROWS_WITH(j.rbegin() == k.rbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.crbegin() == k.crbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_AS(j.rbegin() < k.rbegin(), std::domain_error);
CHECK_THROWS_AS(j.crbegin() < k.crbegin(), std::domain_error);
CHECK_THROWS_WITH(j.rbegin() < k.rbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.crbegin() < k.crbegin(), "cannot compare iterators of different containers");
}
}
}
}
SECTION("reverse iterator arithmetic")
{
json j_object = {{"one", 1}, {"two", 2}, {"three", 3}};
json j_array = {1, 2, 3, 4, 5, 6};
json j_null = nullptr;
json j_value = 42;
SECTION("addition and subtraction")
{
SECTION("object")
{
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.rbegin();
it += 3;
CHECK((j_array.rbegin() + 3) == it);
CHECK((it - 3) == j_array.rbegin());
CHECK((j_array.rbegin() - it) == 3);
CHECK(*it == json(3));
it -= 2;
CHECK(*it == json(5));
}
{
auto it = j_array.crbegin();
it += 3;
CHECK((j_array.crbegin() + 3) == it);
CHECK((it - 3) == j_array.crbegin());
CHECK((j_array.crbegin() - it) == 3);
CHECK(*it == json(3));
it -= 2;
CHECK(*it == json(5));
}
}
SECTION("null")
{
{
auto it = j_null.rbegin();
it += 3;
CHECK((j_null.rbegin() + 3) == it);
CHECK((it - 3) == j_null.rbegin());
CHECK((j_null.rbegin() - it) == 3);
CHECK(it != j_null.rend());
it -= 3;
CHECK(it == j_null.rend());
}
{
auto it = j_null.crbegin();
it += 3;
CHECK((j_null.crbegin() + 3) == it);
CHECK((it - 3) == j_null.crbegin());
CHECK((j_null.crbegin() - it) == 3);
CHECK(it != j_null.crend());
it -= 3;
CHECK(it == j_null.crend());
}
}
SECTION("value")
{
{
auto it = j_value.rbegin();
it += 3;
CHECK((j_value.rbegin() + 3) == it);
CHECK((it - 3) == j_value.rbegin());
CHECK((j_value.rbegin() - it) == 3);
CHECK(it != j_value.rend());
it -= 3;
CHECK(*it == json(42));
}
{
auto it = j_value.crbegin();
it += 3;
CHECK((j_value.crbegin() + 3) == it);
CHECK((it - 3) == j_value.crbegin());
CHECK((j_value.crbegin() - it) == 3);
CHECK(it != j_value.crend());
it -= 3;
CHECK(*it == json(42));
}
}
}
SECTION("subscript operator")
{
SECTION("object")
{
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use offsets with object iterators");
CHECK_THROWS_WITH(it[1], "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use offsets with object iterators");
CHECK_THROWS_WITH(it[1], "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.rbegin();
CHECK(it[0] == json(6));
CHECK(it[1] == json(5));
CHECK(it[2] == json(4));
CHECK(it[3] == json(3));
CHECK(it[4] == json(2));
CHECK(it[5] == json(1));
}
{
auto it = j_array.crbegin();
CHECK(it[0] == json(6));
CHECK(it[1] == json(5));
CHECK(it[2] == json(4));
CHECK(it[3] == json(3));
CHECK(it[4] == json(2));
CHECK(it[5] == json(1));
}
}
SECTION("null")
{
{
auto it = j_null.rbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_null.crbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
SECTION("value")
{
{
auto it = j_value.rbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_value.crbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
}
}
}

873
test/src/unit-iterators2.cpp Normal file
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@ -0,0 +1,873 @@
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 2.0.2
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
Copyright (c) 2013-2016 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "catch.hpp"
#include "json.hpp"
using nlohmann::json;
TEST_CASE("iterators 2")
{
SECTION("iterator comparisons")
{
json j_values = {nullptr, true, 42, 42u, 23.23, {{"one", 1}, {"two", 2}}, {1, 2, 3, 4, 5}, "Hello, world"};
for (json& j : j_values)
{
auto it1 = j.begin();
auto it2 = j.begin();
auto it3 = j.begin();
++it2;
++it3;
++it3;
auto it1_c = j.cbegin();
auto it2_c = j.cbegin();
auto it3_c = j.cbegin();
++it2_c;
++it3_c;
++it3_c;
// comparison: equal
{
CHECK(it1 == it1);
CHECK(not (it1 == it2));
CHECK(not (it1 == it3));
CHECK(not (it2 == it3));
CHECK(it1_c == it1_c);
CHECK(not (it1_c == it2_c));
CHECK(not (it1_c == it3_c));
CHECK(not (it2_c == it3_c));
}
// comparison: not equal
{
// check definition
CHECK( (it1 != it1) == not(it1 == it1) );
CHECK( (it1 != it2) == not(it1 == it2) );
CHECK( (it1 != it3) == not(it1 == it3) );
CHECK( (it2 != it3) == not(it2 == it3) );
CHECK( (it1_c != it1_c) == not(it1_c == it1_c) );
CHECK( (it1_c != it2_c) == not(it1_c == it2_c) );
CHECK( (it1_c != it3_c) == not(it1_c == it3_c) );
CHECK( (it2_c != it3_c) == not(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 < it1, std::domain_error);
CHECK_THROWS_AS(it1 < it2, std::domain_error);
CHECK_THROWS_AS(it2 < it3, std::domain_error);
CHECK_THROWS_AS(it1 < it3, std::domain_error);
CHECK_THROWS_AS(it1_c < it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c < it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 < it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c < it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it3_c, "cannot compare order of object iterators");
}
else
{
CHECK(not (it1 < it1));
CHECK(it1 < it2);
CHECK(it1 < it3);
CHECK(it2 < it3);
CHECK(not (it1_c < it1_c));
CHECK(it1_c < it2_c);
CHECK(it1_c < it3_c);
CHECK(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 <= it1, std::domain_error);
CHECK_THROWS_AS(it1 <= it2, std::domain_error);
CHECK_THROWS_AS(it2 <= it3, std::domain_error);
CHECK_THROWS_AS(it1 <= it3, std::domain_error);
CHECK_THROWS_AS(it1_c <= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c <= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 <= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c <= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 <= it1) == not(it1 < it1) );
CHECK( (it1 <= it2) == not(it2 < it1) );
CHECK( (it1 <= it3) == not(it3 < it1) );
CHECK( (it2 <= it3) == not(it3 < it2) );
CHECK( (it1_c <= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c <= it2_c) == not(it2_c < it1_c) );
CHECK( (it1_c <= it3_c) == not(it3_c < it1_c) );
CHECK( (it2_c <= it3_c) == not(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 > it1, std::domain_error);
CHECK_THROWS_AS(it1 > it2, std::domain_error);
CHECK_THROWS_AS(it2 > it3, std::domain_error);
CHECK_THROWS_AS(it1 > it3, std::domain_error);
CHECK_THROWS_AS(it1_c > it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c > it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 > it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c > it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 > it1) == (it1 < it1) );
CHECK( (it1 > it2) == (it2 < it1) );
CHECK( (it1 > it3) == (it3 < it1) );
CHECK( (it2 > it3) == (it3 < it2) );
CHECK( (it1_c > it1_c) == (it1_c < it1_c) );
CHECK( (it1_c > it2_c) == (it2_c < it1_c) );
CHECK( (it1_c > it3_c) == (it3_c < it1_c) );
CHECK( (it2_c > it3_c) == (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 >= it1, std::domain_error);
CHECK_THROWS_AS(it1 >= it2, std::domain_error);
CHECK_THROWS_AS(it2 >= it3, std::domain_error);
CHECK_THROWS_AS(it1 >= it3, std::domain_error);
CHECK_THROWS_AS(it1_c >= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c >= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 >= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c >= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 >= it1) == not(it1 < it1) );
CHECK( (it1 >= it2) == not(it1 < it2) );
CHECK( (it1 >= it3) == not(it1 < it3) );
CHECK( (it2 >= it3) == not(it2 < it3) );
CHECK( (it1_c >= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c >= it2_c) == not(it1_c < it2_c) );
CHECK( (it1_c >= it3_c) == not(it1_c < it3_c) );
CHECK( (it2_c >= it3_c) == not(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
CHECK_THROWS_AS(j.begin() == k.begin(), std::domain_error);
CHECK_THROWS_AS(j.cbegin() == k.cbegin(), std::domain_error);
CHECK_THROWS_WITH(j.begin() == k.begin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.cbegin() == k.cbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_AS(j.begin() < k.begin(), std::domain_error);
CHECK_THROWS_AS(j.cbegin() < k.cbegin(), std::domain_error);
CHECK_THROWS_WITH(j.begin() < k.begin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.cbegin() < k.cbegin(), "cannot compare iterators of different containers");
}
}
}
}
SECTION("iterator arithmetic")
{
json j_object = {{"one", 1}, {"two", 2}, {"three", 3}};
json j_array = {1, 2, 3, 4, 5, 6};
json j_null = nullptr;
json j_value = 42;
SECTION("addition and subtraction")
{
SECTION("object")
{
{
auto it = j_object.begin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.begin();
it += 3;
CHECK((j_array.begin() + 3) == it);
CHECK((it - 3) == j_array.begin());
CHECK((it - j_array.begin()) == 3);
CHECK(*it == json(4));
it -= 2;
CHECK(*it == json(2));
}
{
auto it = j_array.cbegin();
it += 3;
CHECK((j_array.cbegin() + 3) == it);
CHECK((it - 3) == j_array.cbegin());
CHECK((it - j_array.cbegin()) == 3);
CHECK(*it == json(4));
it -= 2;
CHECK(*it == json(2));
}
}
SECTION("null")
{
{
auto it = j_null.begin();
it += 3;
CHECK((j_null.begin() + 3) == it);
CHECK((it - 3) == j_null.begin());
CHECK((it - j_null.begin()) == 3);
CHECK(it != j_null.end());
it -= 3;
CHECK(it == j_null.end());
}
{
auto it = j_null.cbegin();
it += 3;
CHECK((j_null.cbegin() + 3) == it);
CHECK((it - 3) == j_null.cbegin());
CHECK((it - j_null.cbegin()) == 3);
CHECK(it != j_null.cend());
it -= 3;
CHECK(it == j_null.cend());
}
}
SECTION("value")
{
{
auto it = j_value.begin();
it += 3;
CHECK((j_value.begin() + 3) == it);
CHECK((it - 3) == j_value.begin());
CHECK((it - j_value.begin()) == 3);
CHECK(it != j_value.end());
it -= 3;
CHECK(*it == json(42));
}
{
auto it = j_value.cbegin();
it += 3;
CHECK((j_value.cbegin() + 3) == it);
CHECK((it - 3) == j_value.cbegin());
CHECK((it - j_value.cbegin()) == 3);
CHECK(it != j_value.cend());
it -= 3;
CHECK(*it == json(42));
}
}
}
SECTION("subscript operator")
{
SECTION("object")
{
{
auto it = j_object.begin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use operator[] for object iterators");
CHECK_THROWS_WITH(it[1], "cannot use operator[] for object iterators");
}
{
auto it = j_object.cbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use operator[] for object iterators");
CHECK_THROWS_WITH(it[1], "cannot use operator[] for object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.begin();
CHECK(it[0] == json(1));
CHECK(it[1] == json(2));
CHECK(it[2] == json(3));
CHECK(it[3] == json(4));
CHECK(it[4] == json(5));
CHECK(it[5] == json(6));
}
{
auto it = j_array.cbegin();
CHECK(it[0] == json(1));
CHECK(it[1] == json(2));
CHECK(it[2] == json(3));
CHECK(it[3] == json(4));
CHECK(it[4] == json(5));
CHECK(it[5] == json(6));
}
}
SECTION("null")
{
{
auto it = j_null.begin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_null.cbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
SECTION("value")
{
{
auto it = j_value.begin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_value.cbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
}
}
SECTION("reverse iterator comparisons")
{
json j_values = {nullptr, true, 42, 42u, 23.23, {{"one", 1}, {"two", 2}}, {1, 2, 3, 4, 5}, "Hello, world"};
for (json& j : j_values)
{
auto it1 = j.rbegin();
auto it2 = j.rbegin();
auto it3 = j.rbegin();
++it2;
++it3;
++it3;
auto it1_c = j.crbegin();
auto it2_c = j.crbegin();
auto it3_c = j.crbegin();
++it2_c;
++it3_c;
++it3_c;
// comparison: equal
{
CHECK(it1 == it1);
CHECK(not (it1 == it2));
CHECK(not (it1 == it3));
CHECK(not (it2 == it3));
CHECK(it1_c == it1_c);
CHECK(not (it1_c == it2_c));
CHECK(not (it1_c == it3_c));
CHECK(not (it2_c == it3_c));
}
// comparison: not equal
{
// check definition
CHECK( (it1 != it1) == not(it1 == it1) );
CHECK( (it1 != it2) == not(it1 == it2) );
CHECK( (it1 != it3) == not(it1 == it3) );
CHECK( (it2 != it3) == not(it2 == it3) );
CHECK( (it1_c != it1_c) == not(it1_c == it1_c) );
CHECK( (it1_c != it2_c) == not(it1_c == it2_c) );
CHECK( (it1_c != it3_c) == not(it1_c == it3_c) );
CHECK( (it2_c != it3_c) == not(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 < it1, std::domain_error);
CHECK_THROWS_AS(it1 < it2, std::domain_error);
CHECK_THROWS_AS(it2 < it3, std::domain_error);
CHECK_THROWS_AS(it1 < it3, std::domain_error);
CHECK_THROWS_AS(it1_c < it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c < it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c < it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 < it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 < it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c < it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c < it3_c, "cannot compare order of object iterators");
}
else
{
CHECK(not (it1 < it1));
CHECK(it1 < it2);
CHECK(it1 < it3);
CHECK(it2 < it3);
CHECK(not (it1_c < it1_c));
CHECK(it1_c < it2_c);
CHECK(it1_c < it3_c);
CHECK(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 <= it1, std::domain_error);
CHECK_THROWS_AS(it1 <= it2, std::domain_error);
CHECK_THROWS_AS(it2 <= it3, std::domain_error);
CHECK_THROWS_AS(it1 <= it3, std::domain_error);
CHECK_THROWS_AS(it1_c <= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c <= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c <= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 <= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 <= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c <= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c <= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 <= it1) == not(it1 < it1) );
CHECK( (it1 <= it2) == not(it2 < it1) );
CHECK( (it1 <= it3) == not(it3 < it1) );
CHECK( (it2 <= it3) == not(it3 < it2) );
CHECK( (it1_c <= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c <= it2_c) == not(it2_c < it1_c) );
CHECK( (it1_c <= it3_c) == not(it3_c < it1_c) );
CHECK( (it2_c <= it3_c) == not(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 > it1, std::domain_error);
CHECK_THROWS_AS(it1 > it2, std::domain_error);
CHECK_THROWS_AS(it2 > it3, std::domain_error);
CHECK_THROWS_AS(it1 > it3, std::domain_error);
CHECK_THROWS_AS(it1_c > it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c > it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c > it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 > it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 > it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c > it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c > it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 > it1) == (it1 < it1) );
CHECK( (it1 > it2) == (it2 < it1) );
CHECK( (it1 > it3) == (it3 < it1) );
CHECK( (it2 > it3) == (it3 < it2) );
CHECK( (it1_c > it1_c) == (it1_c < it1_c) );
CHECK( (it1_c > it2_c) == (it2_c < it1_c) );
CHECK( (it1_c > it3_c) == (it3_c < it1_c) );
CHECK( (it2_c > it3_c) == (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
CHECK_THROWS_AS(it1 >= it1, std::domain_error);
CHECK_THROWS_AS(it1 >= it2, std::domain_error);
CHECK_THROWS_AS(it2 >= it3, std::domain_error);
CHECK_THROWS_AS(it1 >= it3, std::domain_error);
CHECK_THROWS_AS(it1_c >= it1_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it2_c, std::domain_error);
CHECK_THROWS_AS(it2_c >= it3_c, std::domain_error);
CHECK_THROWS_AS(it1_c >= it3_c, std::domain_error);
CHECK_THROWS_WITH(it1 >= it1, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it2, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1 >= it3, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it1_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it2_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it2_c >= it3_c, "cannot compare order of object iterators");
CHECK_THROWS_WITH(it1_c >= it3_c, "cannot compare order of object iterators");
}
else
{
// check definition
CHECK( (it1 >= it1) == not(it1 < it1) );
CHECK( (it1 >= it2) == not(it1 < it2) );
CHECK( (it1 >= it3) == not(it1 < it3) );
CHECK( (it2 >= it3) == not(it2 < it3) );
CHECK( (it1_c >= it1_c) == not(it1_c < it1_c) );
CHECK( (it1_c >= it2_c) == not(it1_c < it2_c) );
CHECK( (it1_c >= it3_c) == not(it1_c < it3_c) );
CHECK( (it2_c >= it3_c) == not(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
CHECK_THROWS_AS(j.rbegin() == k.rbegin(), std::domain_error);
CHECK_THROWS_AS(j.crbegin() == k.crbegin(), std::domain_error);
CHECK_THROWS_WITH(j.rbegin() == k.rbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.crbegin() == k.crbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_AS(j.rbegin() < k.rbegin(), std::domain_error);
CHECK_THROWS_AS(j.crbegin() < k.crbegin(), std::domain_error);
CHECK_THROWS_WITH(j.rbegin() < k.rbegin(), "cannot compare iterators of different containers");
CHECK_THROWS_WITH(j.crbegin() < k.crbegin(), "cannot compare iterators of different containers");
}
}
}
}
SECTION("reverse iterator arithmetic")
{
json j_object = {{"one", 1}, {"two", 2}, {"three", 3}};
json j_array = {1, 2, 3, 4, 5, 6};
json j_null = nullptr;
json j_value = 42;
SECTION("addition and subtraction")
{
SECTION("object")
{
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it += 1, std::domain_error);
CHECK_THROWS_WITH(it += 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it + 1, std::domain_error);
CHECK_THROWS_WITH(it + 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it -= 1, std::domain_error);
CHECK_THROWS_WITH(it -= 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it - 1, std::domain_error);
CHECK_THROWS_WITH(it - 1, "cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it - it, std::domain_error);
CHECK_THROWS_WITH(it - it, "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.rbegin();
it += 3;
CHECK((j_array.rbegin() + 3) == it);
CHECK((it - 3) == j_array.rbegin());
CHECK((j_array.rbegin() - it) == 3);
CHECK(*it == json(3));
it -= 2;
CHECK(*it == json(5));
}
{
auto it = j_array.crbegin();
it += 3;
CHECK((j_array.crbegin() + 3) == it);
CHECK((it - 3) == j_array.crbegin());
CHECK((j_array.crbegin() - it) == 3);
CHECK(*it == json(3));
it -= 2;
CHECK(*it == json(5));
}
}
SECTION("null")
{
{
auto it = j_null.rbegin();
it += 3;
CHECK((j_null.rbegin() + 3) == it);
CHECK((it - 3) == j_null.rbegin());
CHECK((j_null.rbegin() - it) == 3);
CHECK(it != j_null.rend());
it -= 3;
CHECK(it == j_null.rend());
}
{
auto it = j_null.crbegin();
it += 3;
CHECK((j_null.crbegin() + 3) == it);
CHECK((it - 3) == j_null.crbegin());
CHECK((j_null.crbegin() - it) == 3);
CHECK(it != j_null.crend());
it -= 3;
CHECK(it == j_null.crend());
}
}
SECTION("value")
{
{
auto it = j_value.rbegin();
it += 3;
CHECK((j_value.rbegin() + 3) == it);
CHECK((it - 3) == j_value.rbegin());
CHECK((j_value.rbegin() - it) == 3);
CHECK(it != j_value.rend());
it -= 3;
CHECK(*it == json(42));
}
{
auto it = j_value.crbegin();
it += 3;
CHECK((j_value.crbegin() + 3) == it);
CHECK((it - 3) == j_value.crbegin());
CHECK((j_value.crbegin() - it) == 3);
CHECK(it != j_value.crend());
it -= 3;
CHECK(*it == json(42));
}
}
}
SECTION("subscript operator")
{
SECTION("object")
{
{
auto it = j_object.rbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use offsets with object iterators");
CHECK_THROWS_WITH(it[1], "cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
CHECK_THROWS_AS(it[0], std::domain_error);
CHECK_THROWS_AS(it[1], std::domain_error);
CHECK_THROWS_WITH(it[0], "cannot use offsets with object iterators");
CHECK_THROWS_WITH(it[1], "cannot use offsets with object iterators");
}
}
SECTION("array")
{
{
auto it = j_array.rbegin();
CHECK(it[0] == json(6));
CHECK(it[1] == json(5));
CHECK(it[2] == json(4));
CHECK(it[3] == json(3));
CHECK(it[4] == json(2));
CHECK(it[5] == json(1));
}
{
auto it = j_array.crbegin();
CHECK(it[0] == json(6));
CHECK(it[1] == json(5));
CHECK(it[2] == json(4));
CHECK(it[3] == json(3));
CHECK(it[4] == json(2));
CHECK(it[5] == json(1));
}
}
SECTION("null")
{
{
auto it = j_null.rbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_null.crbegin();
CHECK_THROWS_AS(it[0], std::out_of_range);
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[0], "cannot get value");
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
SECTION("value")
{
{
auto it = j_value.rbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
{
auto it = j_value.crbegin();
CHECK(it[0] == json(42));
CHECK_THROWS_AS(it[1], std::out_of_range);
CHECK_THROWS_WITH(it[1], "cannot get value");
}
}
}
}
}