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allwpilib/wpiutil/src/test/native/cpp/json/unit-iterators2.cpp
Peter Johnson 0f947613a9 Prepare wpiutil for merge into allwpilib.
2018-04-27 19:56:51 -07:00

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/*----------------------------------------------------------------------------*/
/* Modifications Copyright (c) FIRST 2017. All Rights Reserved. */
/* Open Source Software - may be modified and shared by FRC teams. The code */
/* must be accompanied by the FIRST BSD license file in the root directory of */
/* the project. */
/*----------------------------------------------------------------------------*/
/*
__ _____ _____ _____
__| | __| | | | JSON for Modern C++ (test suite)
| | |__ | | | | | | version 2.1.1
|_____|_____|_____|_|___| https://github.com/nlohmann/json
Licensed under the MIT License <http://opensource.org/licenses/MIT>.
Copyright (c) 2013-2017 Niels Lohmann <http://nlohmann.me>.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#include "gtest/gtest.h"
#include "unit-json.h"
using wpi::json;
TEST(JsonIteratorTest, 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)
{
SCOPED_TRACE(j.dump());
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
{
EXPECT_TRUE(it1 == it1);
EXPECT_FALSE(it1 == it2);
EXPECT_FALSE(it1 == it3);
EXPECT_FALSE(it2 == it3);
EXPECT_TRUE(it1_c == it1_c);
EXPECT_FALSE(it1_c == it2_c);
EXPECT_FALSE(it1_c == it3_c);
EXPECT_FALSE(it2_c == it3_c);
}
// comparison: not equal
{
// check definition
EXPECT_EQ( (it1 != it1), !(it1 == it1) );
EXPECT_EQ( (it1 != it2), !(it1 == it2) );
EXPECT_EQ( (it1 != it3), !(it1 == it3) );
EXPECT_EQ( (it2 != it3), !(it2 == it3) );
EXPECT_EQ( (it1_c != it1_c), !(it1_c == it1_c) );
EXPECT_EQ( (it1_c != it2_c), !(it1_c == it2_c) );
EXPECT_EQ( (it1_c != it3_c), !(it1_c == it3_c) );
EXPECT_EQ( (it2_c != it3_c), !(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 < it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 < it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 < it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 < it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c < it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
EXPECT_FALSE(it1 < it1);
EXPECT_TRUE(it1 < it2);
EXPECT_TRUE(it1 < it3);
EXPECT_TRUE(it2 < it3);
EXPECT_FALSE(it1_c < it1_c);
EXPECT_TRUE(it1_c < it2_c);
EXPECT_TRUE(it1_c < it3_c);
EXPECT_TRUE(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 <= it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 <= it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 <= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 <= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c <= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 <= it1), !(it1 < it1) );
EXPECT_EQ( (it1 <= it2), !(it2 < it1) );
EXPECT_EQ( (it1 <= it3), !(it3 < it1) );
EXPECT_EQ( (it2 <= it3), !(it3 < it2) );
EXPECT_EQ( (it1_c <= it1_c), !(it1_c < it1_c) );
EXPECT_EQ( (it1_c <= it2_c), !(it2_c < it1_c) );
EXPECT_EQ( (it1_c <= it3_c), !(it3_c < it1_c) );
EXPECT_EQ( (it2_c <= it3_c), !(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 > it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 > it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 > it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 > it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c > it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 > it1), (it1 < it1) );
EXPECT_EQ( (it1 > it2), (it2 < it1) );
EXPECT_EQ( (it1 > it3), (it3 < it1) );
EXPECT_EQ( (it2 > it3), (it3 < it2) );
EXPECT_EQ( (it1_c > it1_c), (it1_c < it1_c) );
EXPECT_EQ( (it1_c > it2_c), (it2_c < it1_c) );
EXPECT_EQ( (it1_c > it3_c), (it3_c < it1_c) );
EXPECT_EQ( (it2_c > it3_c), (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 >= it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 >= it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 >= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 >= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c >= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 >= it1), !(it1 < it1) );
EXPECT_EQ( (it1 >= it2), !(it1 < it2) );
EXPECT_EQ( (it1 >= it3), !(it1 < it3) );
EXPECT_EQ( (it2 >= it3), !(it2 < it3) );
EXPECT_EQ( (it1_c >= it1_c), !(it1_c < it1_c) );
EXPECT_EQ( (it1_c >= it2_c), !(it1_c < it2_c) );
EXPECT_EQ( (it1_c >= it3_c), !(it1_c < it3_c) );
EXPECT_EQ( (it2_c >= it3_c), !(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
EXPECT_THROW_MSG(j.begin() == k.begin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.cbegin() == k.cbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.begin() < k.begin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.cbegin() < k.cbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
}
}
}
}
class JsonIteratorArithmeticTest : public ::testing::Test {
protected:
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;
};
TEST_F(JsonIteratorArithmeticTest, AddSubObject)
{
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it += 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it += 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it + 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it + 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
EXPECT_THROW_MSG(1 + it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(1 + it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it -= 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it -= 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it - 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it - 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it - it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it - it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
}
TEST_F(JsonIteratorArithmeticTest, AddSubArray)
{
auto it = j_array.begin();
it += 3;
EXPECT_EQ((j_array.begin() + 3), it);
EXPECT_EQ(json::iterator(3 + j_array.begin()), it);
EXPECT_EQ((it - 3), j_array.begin());
EXPECT_EQ((it - j_array.begin()), 3);
EXPECT_EQ(*it, json(4));
it -= 2;
EXPECT_EQ(*it, json(2));
}
TEST_F(JsonIteratorArithmeticTest, AddSubArrayConst)
{
auto it = j_array.cbegin();
it += 3;
EXPECT_EQ((j_array.cbegin() + 3), it);
EXPECT_EQ(json::const_iterator(3 + j_array.cbegin()), it);
EXPECT_EQ((it - 3), j_array.cbegin());
EXPECT_EQ((it - j_array.cbegin()), 3);
EXPECT_EQ(*it, json(4));
it -= 2;
EXPECT_EQ(*it, json(2));
}
TEST_F(JsonIteratorArithmeticTest, AddSubNull)
{
auto it = j_null.begin();
it += 3;
EXPECT_EQ((j_null.begin() + 3), it);
EXPECT_EQ(json::iterator(3 + j_null.begin()), it);
EXPECT_EQ((it - 3), j_null.begin());
EXPECT_EQ((it - j_null.begin()), 3);
EXPECT_NE(it, j_null.end());
it -= 3;
EXPECT_EQ(it, j_null.end());
}
TEST_F(JsonIteratorArithmeticTest, AddSubNullConst)
{
auto it = j_null.cbegin();
it += 3;
EXPECT_EQ((j_null.cbegin() + 3), it);
EXPECT_EQ(json::const_iterator(3 + j_null.cbegin()), it);
EXPECT_EQ((it - 3), j_null.cbegin());
EXPECT_EQ((it - j_null.cbegin()), 3);
EXPECT_NE(it, j_null.cend());
it -= 3;
EXPECT_EQ(it, j_null.cend());
}
TEST_F(JsonIteratorArithmeticTest, AddSubValue)
{
auto it = j_value.begin();
it += 3;
EXPECT_EQ((j_value.begin() + 3), it);
EXPECT_EQ(json::iterator(3 + j_value.begin()), it);
EXPECT_EQ((it - 3), j_value.begin());
EXPECT_EQ((it - j_value.begin()), 3);
EXPECT_NE(it, j_value.end());
it -= 3;
EXPECT_EQ(*it, json(42));
}
TEST_F(JsonIteratorArithmeticTest, AddSubValueConst)
{
auto it = j_value.cbegin();
it += 3;
EXPECT_EQ((j_value.cbegin() + 3), it);
EXPECT_EQ(json::const_iterator(3 + j_value.cbegin()), it);
EXPECT_EQ((it - 3), j_value.cbegin());
EXPECT_EQ((it - j_value.cbegin()), 3);
EXPECT_NE(it, j_value.cend());
it -= 3;
EXPECT_EQ(*it, json(42));
}
TEST_F(JsonIteratorArithmeticTest, SubscriptObject)
{
auto it = j_object.begin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.208] cannot use operator[] for object iterators");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.208] cannot use operator[] for object iterators");
}
TEST_F(JsonIteratorArithmeticTest, SubscriptObjectConst)
{
auto it = j_object.cbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.208] cannot use operator[] for object iterators");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.208] cannot use operator[] for object iterators");
}
TEST_F(JsonIteratorArithmeticTest, SubscriptArray)
{
auto it = j_array.begin();
EXPECT_EQ(it[0], json(1));
EXPECT_EQ(it[1], json(2));
EXPECT_EQ(it[2], json(3));
EXPECT_EQ(it[3], json(4));
EXPECT_EQ(it[4], json(5));
EXPECT_EQ(it[5], json(6));
}
TEST_F(JsonIteratorArithmeticTest, SubscriptArrayConst)
{
auto it = j_array.cbegin();
EXPECT_EQ(it[0], json(1));
EXPECT_EQ(it[1], json(2));
EXPECT_EQ(it[2], json(3));
EXPECT_EQ(it[3], json(4));
EXPECT_EQ(it[4], json(5));
EXPECT_EQ(it[5], json(6));
}
TEST_F(JsonIteratorArithmeticTest, SubscriptNull)
{
auto it = j_null.begin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonIteratorArithmeticTest, SubscriptNullConst)
{
auto it = j_null.cbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonIteratorArithmeticTest, SubscriptValue)
{
auto it = j_value.begin();
EXPECT_EQ(it[0], json(42));
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonIteratorArithmeticTest, SubscriptValueConst)
{
auto it = j_value.cbegin();
EXPECT_EQ(it[0], json(42));
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
#if 0
TEST(JsonReverseIteratorTest, 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)
{
SCOPED_TRACE(j.dump());
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
{
EXPECT_TRUE(it1 == it1);
EXPECT_FALSE(it1 == it2);
EXPECT_FALSE(it1 == it3);
EXPECT_FALSE(it2 == it3);
EXPECT_TRUE(it1_c == it1_c);
EXPECT_FALSE(it1_c == it2_c);
EXPECT_FALSE(it1_c == it3_c);
EXPECT_FALSE(it2_c == it3_c);
}
// comparison: not equal
{
// check definition
EXPECT_EQ( (it1 != it1), !(it1 == it1) );
EXPECT_EQ( (it1 != it2), !(it1 == it2) );
EXPECT_EQ( (it1 != it3), !(it1 == it3) );
EXPECT_EQ( (it2 != it3), !(it2 == it3) );
EXPECT_EQ( (it1_c != it1_c), !(it1_c == it1_c) );
EXPECT_EQ( (it1_c != it2_c), !(it1_c == it2_c) );
EXPECT_EQ( (it1_c != it3_c), !(it1_c == it3_c) );
EXPECT_EQ( (it2_c != it3_c), !(it2_c == it3_c) );
}
// comparison: smaller
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 < it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 < it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 < it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 < it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c < it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c < it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
EXPECT_FALSE(it1 < it1);
EXPECT_TRUE(it1 < it2);
EXPECT_TRUE(it1 < it3);
EXPECT_TRUE(it2 < it3);
EXPECT_FALSE(it1_c < it1_c);
EXPECT_TRUE(it1_c < it2_c);
EXPECT_TRUE(it1_c < it3_c);
EXPECT_TRUE(it2_c < it3_c);
}
}
// comparison: less than or equal
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 <= it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 <= it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 <= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 <= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c <= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c <= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 <= it1), !(it1 < it1) );
EXPECT_EQ( (it1 <= it2), !(it2 < it1) );
EXPECT_EQ( (it1 <= it3), !(it3 < it1) );
EXPECT_EQ( (it2 <= it3), !(it3 < it2) );
EXPECT_EQ( (it1_c <= it1_c), !(it1_c < it1_c) );
EXPECT_EQ( (it1_c <= it2_c), !(it2_c < it1_c) );
EXPECT_EQ( (it1_c <= it3_c), !(it3_c < it1_c) );
EXPECT_EQ( (it2_c <= it3_c), !(it3_c < it2_c) );
}
}
// comparison: greater than
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 > it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 > it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 > it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 > it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c > it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c > it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 > it1), (it1 < it1) );
EXPECT_EQ( (it1 > it2), (it2 < it1) );
EXPECT_EQ( (it1 > it3), (it3 < it1) );
EXPECT_EQ( (it2 > it3), (it3 < it2) );
EXPECT_EQ( (it1_c > it1_c), (it1_c < it1_c) );
EXPECT_EQ( (it1_c > it2_c), (it2_c < it1_c) );
EXPECT_EQ( (it1_c > it3_c), (it3_c < it1_c) );
EXPECT_EQ( (it2_c > it3_c), (it3_c < it2_c) );
}
}
// comparison: greater than or equal
{
if (j.type() == json::value_t::object)
{
EXPECT_THROW_MSG(it1 >= it1, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 >= it2, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2 >= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1 >= it3, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it1_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it2_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it2_c >= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
EXPECT_THROW_MSG(it1_c >= it3_c, json::invalid_iterator,
"[json.exception.invalid_iterator.213] cannot compare order of object iterators");
}
else
{
// check definition
EXPECT_EQ( (it1 >= it1), !(it1 < it1) );
EXPECT_EQ( (it1 >= it2), !(it1 < it2) );
EXPECT_EQ( (it1 >= it3), !(it1 < it3) );
EXPECT_EQ( (it2 >= it3), !(it2 < it3) );
EXPECT_EQ( (it1_c >= it1_c), !(it1_c < it1_c) );
EXPECT_EQ( (it1_c >= it2_c), !(it1_c < it2_c) );
EXPECT_EQ( (it1_c >= it3_c), !(it1_c < it3_c) );
EXPECT_EQ( (it2_c >= it3_c), !(it2_c < it3_c) );
}
}
}
// check exceptions if different objects are compared
for (auto j : j_values)
{
for (auto k : j_values)
{
if (j != k)
{
EXPECT_THROW_MSG(j.rbegin() == k.rbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.crbegin() == k.crbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.rbegin() < k.rbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
EXPECT_THROW_MSG(j.crbegin() < k.crbegin(), json::invalid_iterator,
"[json.exception.invalid_iterator.212] cannot compare iterators of different containers");
}
}
}
}
class JsonReverseIteratorArithmeticTest : public ::testing::Test {
protected:
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;
};
TEST_F(JsonReverseIteratorArithmeticTest, AddSubObject)
{
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it += 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it += 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it + 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it + 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(1 + it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(1 + it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it -= 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it -= 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it - 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it - 1, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it - it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it - it, json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubArray)
{
auto it = j_array.rbegin();
it += 3;
EXPECT_EQ((j_array.rbegin() + 3), it);
EXPECT_EQ(json::reverse_iterator(3 + j_array.rbegin()), it);
EXPECT_EQ((it - 3), j_array.rbegin());
EXPECT_EQ((it - j_array.rbegin()), 3);
EXPECT_EQ(*it, json(3));
it -= 2;
EXPECT_EQ(*it, json(5));
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubArrayConst)
{
auto it = j_array.crbegin();
it += 3;
EXPECT_EQ((j_array.crbegin() + 3), it);
EXPECT_EQ(json::const_reverse_iterator(3 + j_array.crbegin()), it);
EXPECT_EQ((it - 3), j_array.crbegin());
EXPECT_EQ((it - j_array.crbegin()), 3);
EXPECT_EQ(*it, json(3));
it -= 2;
EXPECT_EQ(*it, json(5));
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubNull)
{
auto it = j_null.rbegin();
it += 3;
EXPECT_EQ((j_null.rbegin() + 3), it);
EXPECT_EQ(json::reverse_iterator(3 + j_null.rbegin()), it);
EXPECT_EQ((it - 3), j_null.rbegin());
EXPECT_EQ((it - j_null.rbegin()), 3);
EXPECT_NE(it, j_null.rend());
it -= 3;
EXPECT_EQ(it, j_null.rend());
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubNullConst)
{
auto it = j_null.crbegin();
it += 3;
EXPECT_EQ((j_null.crbegin() + 3), it);
EXPECT_EQ(json::const_reverse_iterator(3 + j_null.crbegin()), it);
EXPECT_EQ((it - 3), j_null.crbegin());
EXPECT_EQ((it - j_null.crbegin()), 3);
EXPECT_NE(it, j_null.crend());
it -= 3;
EXPECT_EQ(it, j_null.crend());
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubValue)
{
auto it = j_value.rbegin();
it += 3;
EXPECT_EQ((j_value.rbegin() + 3), it);
EXPECT_EQ(json::reverse_iterator(3 + j_value.rbegin()), it);
EXPECT_EQ((it - 3), j_value.rbegin());
EXPECT_EQ((it - j_value.rbegin()), 3);
EXPECT_NE(it, j_value.rend());
it -= 3;
EXPECT_EQ(*it, json(42));
}
TEST_F(JsonReverseIteratorArithmeticTest, AddSubValueConst)
{
auto it = j_value.crbegin();
it += 3;
EXPECT_EQ((j_value.crbegin() + 3), it);
EXPECT_EQ(json::const_reverse_iterator(3 + j_value.crbegin()), it);
EXPECT_EQ((it - 3), j_value.crbegin());
EXPECT_EQ((it - j_value.crbegin()), 3);
EXPECT_NE(it, j_value.crend());
it -= 3;
EXPECT_EQ(*it, json(42));
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptObject)
{
auto it = j_object.rbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptObjectConst)
{
auto it = j_object.crbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.209] cannot use offsets with object iterators");
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptArray)
{
auto it = j_array.rbegin();
EXPECT_EQ(it[0], json(6));
EXPECT_EQ(it[1], json(5));
EXPECT_EQ(it[2], json(4));
EXPECT_EQ(it[3], json(3));
EXPECT_EQ(it[4], json(2));
EXPECT_EQ(it[5], json(1));
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptArrayConst)
{
auto it = j_array.crbegin();
EXPECT_EQ(it[0], json(6));
EXPECT_EQ(it[1], json(5));
EXPECT_EQ(it[2], json(4));
EXPECT_EQ(it[3], json(3));
EXPECT_EQ(it[4], json(2));
EXPECT_EQ(it[5], json(1));
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptNull)
{
auto it = j_null.rbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptNullConst)
{
auto it = j_null.crbegin();
EXPECT_THROW_MSG(it[0], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptValue)
{
auto it = j_value.rbegin();
EXPECT_EQ(it[0], json(42));
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
TEST_F(JsonReverseIteratorArithmeticTest, SubscriptValueConst)
{
auto it = j_value.crbegin();
EXPECT_EQ(it[0], json(42));
EXPECT_THROW_MSG(it[1], json::invalid_iterator,
"[json.exception.invalid_iterator.214] cannot get value");
}
#endif
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