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//---------------------------------------------------------------------------//
// Copyright (c) 2016 Jakub Szuppe <j.szuppe@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//
#define BOOST_TEST_MODULE TestStableSortByKey
#include <boost/test/unit_test.hpp>
#include <boost/compute/system.hpp>
#include <boost/compute/algorithm/stable_sort_by_key.hpp>
#include <boost/compute/algorithm/is_sorted.hpp>
#include <boost/compute/container/vector.hpp>
#include "check_macros.hpp"
#include "context_setup.hpp"
namespace compute = boost::compute;
BOOST_AUTO_TEST_CASE(empty_int_by_int)
{
compute::vector<compute::int_> keys(size_t(0), compute::int_(0), queue);
compute::vector<compute::int_> values(size_t(0), compute::int_(0), queue);
BOOST_CHECK_EQUAL(keys.size(), size_t(0));
BOOST_CHECK_EQUAL(values.size(), size_t(0));
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
BOOST_CHECK(compute::is_sorted(values.begin(), values.end(), queue));
compute::stable_sort_by_key(
keys.begin(), keys.end(), values.begin(), queue
);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end()));
BOOST_CHECK(compute::is_sorted(values.begin(), values.end()));
}
BOOST_AUTO_TEST_CASE(one_element_int_by_int)
{
compute::int_ keys_data[] = { 1 };
compute::int_ values_data[] = { 2 };
compute::vector<compute::int_> keys(keys_data, keys_data + 1, queue);
compute::vector<compute::int_> values(values_data, values_data + 1, queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
BOOST_CHECK(compute::is_sorted(values.begin(), values.end(), queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
BOOST_CHECK(compute::is_sorted(values.begin(), values.end(), queue));
}
BOOST_AUTO_TEST_CASE(two_elements_int_by_int)
{
compute::int_ keys_data[] = { 1, -1 };
compute::int_ values_data[] = { -10, 1 };
compute::vector<compute::int_> keys(keys_data, keys_data + 2, queue);
compute::vector<compute::int_> values(values_data, values_data + 2, queue);
BOOST_CHECK(!compute::is_sorted(keys.begin(), keys.end(), queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
}
BOOST_AUTO_TEST_CASE(stable_sort_int_by_int)
{
compute::int_ keys_data[] = { 10, 9, 2, 7, 6, -1, 4, 2, 2, 10 };
compute::int_ values_data[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
compute::vector<compute::int_> keys(keys_data, keys_data + 10, queue);
compute::vector<compute::int_> values(values_data, values_data + 10, queue);
BOOST_CHECK(!compute::is_sorted(keys.begin(), keys.end(), queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
CHECK_RANGE_EQUAL(
compute::int_, 10, keys,
(-1, 2, 2, 2, 4, 6, 7, 9, 10, 10) // keys
// ( 6, 3, 8, 9, 7, 5, 4, 2, 1, 10) values
);
CHECK_RANGE_EQUAL(
compute::int_, 10, values,
// (-1, 2, 2, 2, 4, 6, 7, 9, 10, 10) keys
( 6, 3, 8, 9, 7, 5, 4, 2, 1, 10) // values
);
}
BOOST_AUTO_TEST_CASE(stable_sort_uint_by_uint)
{
compute::uint_ keys_data[] = { 10, 9, 2, 7, 6, 1, 4, 2, 2, 10 };
compute::uint_ values_data[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 };
compute::vector<compute::uint_> keys(keys_data, keys_data + 10, queue);
compute::vector<compute::uint_> values(values_data, values_data + 10, queue);
BOOST_CHECK(!compute::is_sorted(keys.begin(), keys.end(), queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
CHECK_RANGE_EQUAL(
compute::uint_, 10, keys,
(1, 2, 2, 2, 4, 6, 7, 9, 10, 10) // keys
// (6, 3, 8, 9, 7, 5, 4, 2, 1, 10) values
);
CHECK_RANGE_EQUAL(
compute::uint_, 10, values,
// (1, 2, 2, 2, 4, 6, 7, 9, 10, 10) keys
(6, 3, 8, 9, 7, 5, 4, 2, 1, 10) // values
);
}
BOOST_AUTO_TEST_CASE(stable_sort_int_by_float)
{
compute::float_ keys_data[] = { 10., 5.5, 10., 7., 5.5};
compute::int_ values_data[] = { 1, 200, -10, 2, 4 };
compute::vector<compute::float_> keys(keys_data, keys_data + 5, queue);
compute::vector<compute::uint_> values(values_data, values_data + 5, queue);
BOOST_CHECK(!compute::is_sorted(keys.begin(), keys.end(), queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), queue));
CHECK_RANGE_EQUAL(
compute::float_, 5, keys,
(5.5, 5.5, 7., 10., 10.) // keys
// (200, 4, 2, 1, -10) values
);
CHECK_RANGE_EQUAL(
compute::int_, 5, values,
// (5.5, 5.5, 7., 10., 10.) keys
(200, 4, 2, 1, -10) // values
);
}
BOOST_AUTO_TEST_CASE(stable_sort_char_by_int)
{
compute::int_ keys_data[] = { 6, 1, 1, 3, 4, 7, 5, 1 };
compute::char_ values_data[] = { 'g', 'c', 'b', 'd', 'e', 'h', 'f', 'a' };
compute::vector<compute::int_> keys(keys_data, keys_data + 8, queue);
compute::vector<compute::char_> values(values_data, values_data + 8, queue);
compute::sort_by_key(keys.begin(), keys.end(), values.begin(), queue);
CHECK_RANGE_EQUAL(
compute::int_, 8, keys,
(1, 1, 1, 3, 4, 5, 6, 7)
);
CHECK_RANGE_EQUAL(
compute::char_, 8, values,
('c', 'b', 'a', 'd', 'e', 'f', 'g', 'h')
);
}
BOOST_AUTO_TEST_CASE(stable_sort_mid_uint_by_uint)
{
using boost::compute::int_;
const int_ size = 128;
std::vector<int_> keys_data(size);
std::vector<int_> values_data(size);
for(int_ i = 0; i < size; i++){
keys_data[i] = -i;
values_data[i] = -i;
}
keys_data[size/2] = -256;
keys_data[size - 2] = -256;
keys_data[size - 1] = -256;
values_data[size/2] = 3;
values_data[size - 2] = 1;
values_data[size - 1] = 2;
compute::vector<int_> keys(keys_data.begin(), keys_data.end(), queue);
compute::vector<int_> values(values_data.begin(), values_data.end(), queue);
// less function for float
BOOST_COMPUTE_FUNCTION(bool, comp, (int_ a, int_ b),
{
return a < b;
});
BOOST_CHECK(!compute::is_sorted(keys.begin(), keys.end(), comp, queue));
compute::stable_sort_by_key(keys.begin(), keys.end(), values.begin(), comp, queue);
BOOST_CHECK(compute::is_sorted(keys.begin(), keys.end(), comp, queue));
BOOST_CHECK(keys.begin().read(queue) == -256);
BOOST_CHECK((keys.begin() + 1).read(queue) == -256);
BOOST_CHECK((keys.begin() + 2).read(queue) == -256);
BOOST_CHECK(values.begin().read(queue) == 3);
BOOST_CHECK((values.begin() + 1).read(queue) == 1);
BOOST_CHECK((values.begin() + 2).read(queue) == 2);
}
BOOST_AUTO_TEST_SUITE_END()
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