| // Boost.Range library |
| // |
| // 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/range/adaptor/adjacent_filtered.hpp> |
| |
| #include <boost/test/test_tools.hpp> |
| #include <boost/test/unit_test.hpp> |
| |
| #include <boost/assign.hpp> |
| #include <algorithm> |
| #include <list> |
| #include <set> |
| #include <string> |
| #include <vector> |
| |
| namespace boost |
| { |
| namespace |
| { |
| template< class Container > |
| void adjacent_filtered_test_impl( Container& c ) |
| { |
| using namespace boost::adaptors; |
| |
| typedef BOOST_DEDUCED_TYPENAME Container::value_type value_t; |
| |
| // This is my preferred syntax using the | operator. |
| std::vector< value_t > test_result1 |
| = boost::copy_range< std::vector< value_t > >( |
| c | adjacent_filtered(std::not_equal_to< value_t >())); |
| |
| // This is an alternative syntax preferred by some. |
| std::vector< value_t > test_result2 |
| = boost::copy_range< std::vector< value_t > >( |
| adaptors::adjacent_filter(c, std::not_equal_to< value_t >())); |
| |
| // Calculate the reference result. |
| std::vector< value_t > reference_result; |
| typedef BOOST_DEDUCED_TYPENAME Container::const_iterator iter_t; |
| value_t prev_v = value_t(); |
| for (iter_t it = c.begin(); it != c.end(); ++it) |
| { |
| if (it == c.begin()) |
| { |
| reference_result.push_back(*it); |
| } |
| else if (*it != prev_v) |
| { |
| reference_result.push_back(*it); |
| } |
| prev_v = *it; |
| } |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( reference_result.begin(), |
| reference_result.end(), |
| test_result1.begin(), |
| test_result1.end() ); |
| |
| BOOST_CHECK_EQUAL_COLLECTIONS( reference_result.begin(), |
| reference_result.end(), |
| test_result2.begin(), |
| test_result2.end() ); |
| } |
| |
| template< class Collection > |
| void adjacent_filtered_test_impl() |
| { |
| using namespace boost::assign; |
| |
| Collection c; |
| |
| // test empty collection |
| adjacent_filtered_test_impl(c); |
| |
| // test one element; |
| c += 1; |
| adjacent_filtered_test_impl(c); |
| |
| // test many elements; |
| c += 1,2,2,2,3,4,4,4,4,5,6,7,8,9,9; |
| adjacent_filtered_test_impl(c); |
| } |
| |
| void adjacent_filtered_test() |
| { |
| adjacent_filtered_test_impl< std::vector< int > >(); |
| adjacent_filtered_test_impl< std::list< int > >(); |
| adjacent_filtered_test_impl< std::set< int > >(); |
| adjacent_filtered_test_impl< std::multiset< int > >(); |
| } |
| } |
| } |
| |
| boost::unit_test::test_suite* |
| init_unit_test_suite(int argc, char* argv[]) |
| { |
| boost::unit_test::test_suite* test |
| = BOOST_TEST_SUITE( "RangeTestSuite.adaptor.adjacent_filtered" ); |
| |
| test->add( BOOST_TEST_CASE( &boost::adjacent_filtered_test ) ); |
| |
| return test; |
| } |