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// Copyright Neil Groves 2009. Use, modification and
// distribution is subject to 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)
//
//
// For more information, see http://www.boost.org/libs/range/
//
#include <boost/assign.hpp>
#include <boost/range/algorithm/permutation.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <algorithm>
#include <deque>
#include <functional>
#include <list>
#include <vector>
namespace boost
{
namespace
{
template<class Container>
void test_prev_permutation_impl(const Container& cont)
{
Container reference(cont);
Container test(cont);
Container test2(cont);
const bool reference_ret
= std::prev_permutation(reference.begin(), reference.end());
const bool test_ret = boost::prev_permutation(test);
BOOST_CHECK( reference_ret == test_ret );
BOOST_CHECK_EQUAL_COLLECTIONS(
reference.begin(), reference.end(),
test.begin(), test.end()
);
BOOST_CHECK( test_ret == boost::prev_permutation(
boost::make_iterator_range(test2)) );
BOOST_CHECK_EQUAL_COLLECTIONS(
reference.begin(), reference.end(),
test2.begin(), test2.end()
);
}
template<class Container, class BinaryPredicate>
void test_prev_permutation_pred_impl(const Container& cont,
BinaryPredicate pred)
{
Container reference(cont);
Container test(cont);
Container test2(cont);
const bool reference_ret
= std::prev_permutation(reference.begin(), reference.end(),
pred);
const bool test_ret = boost::prev_permutation(test, pred);
BOOST_CHECK( reference_ret == test_ret );
BOOST_CHECK_EQUAL_COLLECTIONS(
reference.begin(), reference.end(),
test.begin(), test.end()
);
BOOST_CHECK( test_ret == boost::prev_permutation(
boost::make_iterator_range(test2), pred) );
BOOST_CHECK_EQUAL_COLLECTIONS(
reference.begin(), reference.end(),
test2.begin(), test2.end()
);
}
template<class Container>
void test_prev_permutation_(const Container& cont)
{
test_prev_permutation_impl(cont);
test_prev_permutation_pred_impl(cont, std::less<int>());
test_prev_permutation_pred_impl(cont, std::greater<int>());
}
template<class Container>
void run_tests()
{
using namespace boost::assign;
Container cont;
test_prev_permutation_(cont);
cont.clear();
cont += 1;
test_prev_permutation_(cont);
cont.clear();
cont += 1,2,3,4,5,6,7,8,9;
test_prev_permutation_(cont);
}
void test_prev_permutation()
{
run_tests< std::vector<int> >();
run_tests< std::list<int> >();
run_tests< std::deque<int> >();
}
}
}
boost::unit_test::test_suite*
init_unit_test_suite(int argc, char* argv[])
{
boost::unit_test::test_suite* test
= BOOST_TEST_SUITE( "RangeTestSuite.algorithm.prev_permutation" );
test->add( BOOST_TEST_CASE( &boost::test_prev_permutation ) );
return test;
}
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