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//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@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 TestRandomShuffle
#include <boost/test/unit_test.hpp>
#include <set>
#include <iterator>
#include <boost/compute/system.hpp>
#include <boost/compute/command_queue.hpp>
#include <boost/compute/algorithm/random_shuffle.hpp>
#include <boost/compute/container/vector.hpp>
#include "context_setup.hpp"
namespace bc = boost::compute;
BOOST_AUTO_TEST_CASE(shuffle_int_vector)
{
bc::vector<int> vector(context);
vector.push_back(1, queue);
vector.push_back(9, queue);
vector.push_back(19, queue);
vector.push_back(29, queue);
queue.finish();
std::set<int> original_values;
for(size_t i = 0; i < vector.size(); i++){
original_values.insert(vector[i]);
}
BOOST_CHECK_EQUAL(original_values.size(), size_t(4));
bc::random_shuffle(vector.begin(), vector.end(), queue);
std::set<int> shuffled_values;
bc::copy(
vector.begin(),
vector.end(),
std::inserter(shuffled_values, shuffled_values.begin()),
queue
);
BOOST_CHECK_EQUAL(shuffled_values.size(), size_t(4));
BOOST_VERIFY(original_values == shuffled_values);
}
BOOST_AUTO_TEST_SUITE_END()
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