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fsfw/contrib/fsfw_contrib/etl-20.39.4/test/test_iterator.cpp

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/******************************************************************************
The MIT License(MIT)
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
Copyright(c) 2014 John Wellbelove
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 "unit_test_framework.h"
#include <string>
#include <list>
#include <queue>
#include <algorithm>
#include "etl/iterator.h"
#include "iterators_for_unit_tests.h"
#include "data.h"
namespace
{
using Item = TestDataM<std::string>;
struct input : public etl::iterator<ETL_OR_STD::input_iterator_tag, int>
{
};
struct output : public etl::iterator<ETL_OR_STD::output_iterator_tag, int>
{
};
struct forward : public etl::iterator<ETL_OR_STD::forward_iterator_tag, int>
{
};
struct bidirectional : public etl::iterator<ETL_OR_STD::bidirectional_iterator_tag, int>
{
};
struct random : public etl::iterator<ETL_OR_STD::random_access_iterator_tag, int>
{
};
typedef int* pointer;
typedef const int* const_pointer;
const size_t SIZE = 10UL;
int dataA[SIZE] = { 2, 1, 4, 3, 6, 5, 8, 7, 10, 9 };
SUITE(test_iterator)
{
// NOTE '!!' is required to keep GCC happy.
//*************************************************************************
TEST(distance_non_random)
{
ptrdiff_t d = etl::distance(non_random_iterator<int>(&dataA[0]), non_random_iterator<int>(dataA + SIZE));
CHECK_EQUAL(SIZE, d);
}
//*************************************************************************
TEST(distance_random)
{
ptrdiff_t d = etl::distance(random_iterator<int>(&dataA[0]), random_iterator<int>(dataA + SIZE));
CHECK_EQUAL(SIZE, d);
}
//*************************************************************************
TEST(advance_non_random)
{
int* itr1 = std::begin(dataA);
non_random_iterator<int> itr2 = std::begin(dataA);
std::advance(itr1, 4);
etl::advance(itr2, 4);
CHECK_EQUAL(*itr1, *itr2);
std::advance(itr1, -3);
etl::advance(itr2, -3);
CHECK_EQUAL(*itr1, *itr2);
}
//*************************************************************************
TEST(advance_random)
{
int* itr1 = std::begin(dataA);
random_iterator<int> itr2 = std::begin(dataA);
std::advance(itr1, 4);
etl::advance(itr2, 4);
CHECK_EQUAL(*itr1, *itr2);
std::advance(itr1, -3);
etl::advance(itr2, -3);
CHECK_EQUAL(*itr1, *itr2);
}
//*************************************************************************
TEST(prev)
{
int data[] = { 1, 2, 3, 4, 5, 6, 7 };
size_t length = 6UL;
int* itr = &data[0] + length;
for (size_t i = 1UL; i <= length; ++i)
{
CHECK_EQUAL(data[length - i], *etl::prev(itr, i));
}
}
//*************************************************************************
TEST(next)
{
int data[] = { 1, 2, 3, 4, 5, 6, 7 };
size_t length = 6UL;
int* itr = &data[0];
for (size_t i = 1UL; i <= length; ++i)
{
CHECK_EQUAL(data[i], *etl::next(itr, i));
}
}
//*************************************************************************
TEST(reverse_iterator)
{
int data[] = { 1, 2, 3, 4, 5, 6, 7 };
std::reverse_iterator<int*> sri(&data[7]);
etl::reverse_iterator<int*> eri(&data[7]);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK(etl::reverse_iterator<int*>(&data[5]) < eri);
CHECK(etl::reverse_iterator<int*>(&data[3]) > eri);
CHECK(etl::reverse_iterator<int*>(&data[4]) <= eri);
CHECK(etl::reverse_iterator<int*>(&data[5]) <= eri);
CHECK(etl::reverse_iterator<int*>(&data[4]) >= eri);
CHECK(etl::reverse_iterator<int*>(&data[3]) >= eri);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri, *eri);
CHECK(etl::reverse_iterator<int*>(&data[1]) == eri);
CHECK(etl::reverse_iterator<int*>(&data[2]) != eri);
CHECK(etl::reverse_iterator<int*>(&data[3]) != eri);
CHECK(etl::reverse_iterator<int*>(&data[4]) != eri);
CHECK(etl::reverse_iterator<int*>(&data[5]) != eri);
CHECK(etl::reverse_iterator<int*>(&data[6]) != eri);
CHECK(etl::reverse_iterator<int*>(&data[7]) != eri);
sri = std::reverse_iterator<int*>(&data[7]);
eri = etl::reverse_iterator<int*>(&data[7]);
CHECK_EQUAL(sri[0], eri[0]);
CHECK_EQUAL(sri[1], eri[1]);
CHECK_EQUAL(sri[2], eri[2]);
CHECK_EQUAL(sri[3], eri[3]);
CHECK_EQUAL(sri[4], eri[4]);
CHECK_EQUAL(sri[5], eri[5]);
CHECK_EQUAL(sri[6], eri[6]);
sri += 4;
eri += 4;
CHECK_EQUAL(*sri, *eri);
sri -= 2;
eri -= 2;
CHECK_EQUAL(*sri, *eri);
std::reverse_iterator<int*> sri2 = sri + 3;
etl::reverse_iterator<int*> eri2 = eri + 3;
CHECK_EQUAL(*sri, *eri);
sri2 = sri - 3;
eri2 = eri - 3;
CHECK_EQUAL(*sri, *eri);
}
//*************************************************************************
TEST(reverse_iterator_const)
{
const int data[] = { 1, 2, 3, 4, 5, 6, 7 };
std::reverse_iterator<const int*> sri(&data[7]);
etl::reverse_iterator<const int*> eri(&data[7]);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK(etl::reverse_iterator<const int*>(&data[5]) < eri);
CHECK(etl::reverse_iterator<const int*>(&data[3]) > eri);
CHECK(etl::reverse_iterator<const int*>(&data[4]) <= eri);
CHECK(etl::reverse_iterator<const int*>(&data[5]) <= eri);
CHECK(etl::reverse_iterator<const int*>(&data[4]) >= eri);
CHECK(etl::reverse_iterator<const int*>(&data[3]) >= eri);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri++, *eri++);
CHECK_EQUAL(*sri, *eri);
CHECK(etl::reverse_iterator<const int*>(&data[1]) == eri);
CHECK(etl::reverse_iterator<const int*>(&data[2]) != eri);
CHECK(etl::reverse_iterator<const int*>(&data[3]) != eri);
CHECK(etl::reverse_iterator<const int*>(&data[4]) != eri);
CHECK(etl::reverse_iterator<const int*>(&data[5]) != eri);
CHECK(etl::reverse_iterator<const int*>(&data[6]) != eri);
CHECK(etl::reverse_iterator<const int*>(&data[7]) != eri);
sri = std::reverse_iterator<const int*>(&data[7]);
eri = etl::reverse_iterator<const int*>(&data[7]);
CHECK_EQUAL(sri[0], eri[0]);
CHECK_EQUAL(sri[1], eri[1]);
CHECK_EQUAL(sri[2], eri[2]);
CHECK_EQUAL(sri[3], eri[3]);
CHECK_EQUAL(sri[4], eri[4]);
CHECK_EQUAL(sri[5], eri[5]);
CHECK_EQUAL(sri[6], eri[6]);
CHECK_EQUAL(*sri, *eri);
CHECK_EQUAL(*(sri + 1), *(eri + 1));
CHECK_EQUAL(*(sri + 2), *(eri + 2));
CHECK_EQUAL(*(sri + 3), *(eri + 3));
CHECK_EQUAL(*(sri + 4), *(eri + 4));
CHECK_EQUAL(*(sri + 5), *(eri + 5));
CHECK_EQUAL(*(sri + 6), *(eri + 6));
sri += 4;
eri += 4;
CHECK_EQUAL(*sri, *eri);
sri -= 2;
eri -= 2;
CHECK_EQUAL(*sri, *eri);
std::reverse_iterator<const int*> sri2 = sri + 3;
etl::reverse_iterator<const int*> eri2 = eri + 3;
CHECK_EQUAL(*sri, *eri);
sri2 = sri - 3;
eri2 = eri - 3;
CHECK_EQUAL(*sri, *eri);
}
//*************************************************************************
TEST(test_input)
{
CHECK(!!etl::is_input_iterator<input>::value);
CHECK(!etl::is_output_iterator<input>::value);
CHECK(!etl::is_forward_iterator<input>::value);
CHECK(!etl::is_bidirectional_iterator<input>::value);
CHECK(!etl::is_random_iterator<input>::value);
CHECK(!!etl::is_input_iterator_concept<input>::value);
CHECK(!etl::is_output_iterator_concept<input>::value);
CHECK(!etl::is_forward_iterator_concept<input>::value);
CHECK(!etl::is_bidirectional_iterator_concept<input>::value);
CHECK(!etl::is_random_iterator_concept<input>::value);
}
//*************************************************************************
TEST(test_output)
{
CHECK(!etl::is_input_iterator<output>::value);
CHECK(!!etl::is_output_iterator<output>::value);
CHECK(!etl::is_forward_iterator<output>::value);
CHECK(!etl::is_bidirectional_iterator<output>::value);
CHECK(!etl::is_random_iterator<output>::value);
CHECK(!etl::is_input_iterator_concept<output>::value);
CHECK(etl::is_output_iterator_concept<output>::value == true);
CHECK(!etl::is_forward_iterator_concept<output>::value);
CHECK(!etl::is_bidirectional_iterator_concept<output>::value);
CHECK(!etl::is_random_iterator_concept<output>::value);
}
//*************************************************************************
TEST(test_forward)
{
CHECK(!etl::is_input_iterator<forward>::value);
CHECK(!etl::is_output_iterator<forward>::value);
CHECK(!!etl::is_forward_iterator<forward>::value);
CHECK(!etl::is_bidirectional_iterator<forward>::value);
CHECK(!etl::is_random_iterator<forward>::value);
CHECK(!!etl::is_input_iterator_concept<forward>::value);
CHECK(!!etl::is_output_iterator_concept<forward>::value);
CHECK(!!etl::is_forward_iterator_concept<forward>::value);
CHECK(!etl::is_bidirectional_iterator_concept<forward>::value);
CHECK(!etl::is_random_iterator_concept<forward>::value);
}
//*************************************************************************
TEST(test_bidirectional)
{
CHECK(!etl::is_input_iterator<bidirectional>::value);
CHECK(!etl::is_output_iterator<bidirectional>::value);
CHECK(!etl::is_forward_iterator<bidirectional>::value);
CHECK(!!etl::is_bidirectional_iterator<bidirectional>::value);
CHECK(!etl::is_random_iterator<bidirectional>::value);
CHECK(!!etl::is_input_iterator_concept<bidirectional>::value);
CHECK(!!etl::is_output_iterator_concept<bidirectional>::value);
CHECK(!!etl::is_forward_iterator_concept<bidirectional>::value);
CHECK(!!etl::is_bidirectional_iterator_concept<bidirectional>::value);
CHECK(!etl::is_random_iterator_concept<bidirectional>::value);
}
//*************************************************************************
TEST(test_random)
{
CHECK(!etl::is_input_iterator<random>::value);
CHECK(!etl::is_output_iterator<random>::value);
CHECK(!etl::is_forward_iterator<random>::value);
CHECK(!etl::is_bidirectional_iterator<random>::value);
CHECK(!!etl::is_random_iterator<random>::value);
CHECK(!!etl::is_input_iterator_concept<random>::value);
CHECK(!!etl::is_output_iterator_concept<random>::value);
CHECK(!!etl::is_forward_iterator_concept<random>::value);
CHECK(!!etl::is_bidirectional_iterator_concept<random>::value);
CHECK(!!etl::is_random_iterator_concept<random>::value);
}
//*************************************************************************
TEST(test_pointer)
{
CHECK(!etl::is_input_iterator<pointer>::value);
CHECK(!etl::is_output_iterator<pointer>::value);
CHECK(!etl::is_forward_iterator<pointer>::value);
CHECK(!etl::is_bidirectional_iterator<pointer>::value);
CHECK(!!etl::is_random_iterator<pointer>::value);
CHECK(!!etl::is_input_iterator_concept<pointer>::value);
CHECK(!!etl::is_output_iterator_concept<pointer>::value);
CHECK(!!etl::is_forward_iterator_concept<pointer>::value);
CHECK(!!etl::is_bidirectional_iterator_concept<pointer>::value);
CHECK(!!etl::is_random_iterator_concept<pointer>::value);
}
//*************************************************************************
TEST(test_const_pointer)
{
CHECK(!etl::is_input_iterator<const_pointer>::value);
CHECK(!etl::is_output_iterator<const_pointer>::value);
CHECK(!etl::is_forward_iterator<const_pointer>::value);
CHECK(!etl::is_bidirectional_iterator<const_pointer>::value);
CHECK(!!etl::is_random_iterator<const_pointer>::value);
CHECK(!!etl::is_input_iterator_concept<const_pointer>::value);
CHECK(!!etl::is_output_iterator_concept<const_pointer>::value);
CHECK(!!etl::is_forward_iterator_concept<const_pointer>::value);
CHECK(!!etl::is_bidirectional_iterator_concept<const_pointer>::value);
CHECK(!!etl::is_random_iterator_concept<const_pointer>::value);
}
//*************************************************************************
TEST(test_move_iterator_constructors)
{
Item list[] = { Item("1"), Item("2"), Item("3") };
etl::move_iterator<Item*> mitr1(&list[0]);
etl::move_iterator<Item*> mitr2(&list[1]);
etl::move_iterator<Item*> mitr3(&list[1]);
etl::move_iterator<Item*> mitr4 = etl::make_move_iterator(&list[2]);
etl::move_iterator<Item*> mitr5(mitr4);
CHECK(mitr1.base() == &list[0]);
CHECK(mitr2.base() == &list[1]);
CHECK(mitr3.base() == &list[1]);
CHECK(mitr4.base() == &list[2]);
CHECK(mitr5.base() == &list[2]);
}
//*************************************************************************
TEST(test_move_iterator_relational_operators)
{
Item list[] = { Item("1"), Item("2"), Item("3") };
etl::move_iterator<Item*> mitr1(&list[0]);
etl::move_iterator<Item*> mitr2(&list[1]);
etl::move_iterator<Item*> mitr3(&list[1]);
etl::move_iterator<Item*> mitr4 = etl::make_move_iterator(&list[2]);
etl::move_iterator<Item*> mitr5(mitr4);
CHECK(mitr1 < mitr2);
CHECK(!(mitr2 < mitr1));
CHECK(!(mitr2 < mitr3));
CHECK(mitr1 <= mitr2);
CHECK(mitr2 <= mitr3);
CHECK(!(mitr2 <= mitr1));
CHECK(mitr2 > mitr1);
CHECK(!(mitr1 > mitr2));
CHECK(!(mitr3 > mitr2));
CHECK(mitr2 >= mitr1);
CHECK(mitr3 >= mitr2);
CHECK(!(mitr1 >= mitr2));
CHECK(mitr4 == mitr5);
CHECK(mitr3 != mitr5);
}
//*************************************************************************
TEST(test_move_iterator_access_operators)
{
Item item1("1");
etl::move_iterator<Item*> mitr(&item1);
CHECK_EQUAL("1", mitr->value);
CHECK_EQUAL(true, mitr->valid);
CHECK_EQUAL("1", (*mitr).value);
CHECK_EQUAL(true, (*mitr).valid);
Item item2 = *mitr; // Move item1
CHECK_EQUAL(false, item1.valid);
CHECK_EQUAL("1", item2.value);
CHECK_EQUAL(true, item2.valid);
}
//*************************************************************************
TEST(test_move_iterator_index)
{
Item list[] = { Item("1"), Item("2"), Item("3") };
etl::move_iterator<Item*> mitr(&list[0]);
CHECK_EQUAL("3", mitr[2].value);
CHECK_EQUAL(true, mitr[2].valid);
}
//*************************************************************************
TEST(test_move_iterator_increment_decrement)
{
Item list[] = { Item("1"), Item("2"), Item("3") };
etl::move_iterator<Item*> mitr(&list[0]);
mitr++;
++mitr;
CHECK_EQUAL("3", mitr->value);
CHECK_EQUAL(true, mitr->valid);
mitr--;
--mitr;
CHECK_EQUAL("1", mitr->value);
CHECK_EQUAL(true, mitr->valid);
mitr += 1;
CHECK_EQUAL("2", mitr->value);
CHECK_EQUAL(true, mitr->valid);
mitr -= 1;
CHECK_EQUAL("1", mitr->value);
CHECK_EQUAL(true, mitr->valid);
mitr = mitr + 1;
CHECK_EQUAL("2", mitr->value);
CHECK_EQUAL(true, mitr->valid);
mitr = mitr - 1;
CHECK_EQUAL("1", mitr->value);
CHECK_EQUAL(true, mitr->valid);
}
//*************************************************************************
TEST(test_move_iterator_subtraction)
{
Item list[] = { Item("1"), Item("2"), Item("3") };
etl::move_iterator<Item*> mitr1(&list[0]);
etl::move_iterator<Item*> mitr2(&list[1]);
etl::move_iterator<Item*>::difference_type d = mitr2 - mitr1;
CHECK_EQUAL(1, d);
}
//*************************************************************************
TEST(test_front_insert_iterator)
{
std::list<int> input = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
std::list<int> expected = { 81, 64, 49, 36, 25, 16, 9, 4, 1, 0 };
std::list<int> output;
auto squared = [](int value)
{
return value * value;
};
std::transform(input.cbegin(), input.cend(), etl::front_inserter(output), squared);
CHECK_EQUAL(expected.size(), output.size());
CHECK(std::equal(output.begin(), output.end(), expected.begin()));
}
//*************************************************************************
TEST(test_back_insert_iterator)
{
std::list<int> input = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
std::list<int> expected = { 0, 1, 4, 9, 16, 25, 36, 49, 64, 81 };
std::list<int> output;
auto squared = [](int value)
{
return value * value;
};
std::transform(input.cbegin(), input.cend(), etl::back_inserter(output), squared);
CHECK_EQUAL(expected.size(), output.size());
CHECK(std::equal(output.begin(), output.end(), expected.begin()));
}
//*************************************************************************
//TEST(test_push_insert_iterator)
//{
// std::list<int> input = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 };
// std::list<int> expected = { 0, 1, 4, 9, 16, 25, 36, 49, 64, 81 };
// std::queue<int> output;
// auto squared = [](int value)
// {
// return value * value;
// };
// std::transform(input.begin(), input.cend(), etl::push_inserter(output), squared);
// CHECK_EQUAL(expected.size(), output.size());
// CHECK(std::equal(output.begin(), output.end(), expected.begin()));
//}
};
}
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