| // (C) Copyright Eric Niebler 2005. |
| // Use, modification and distribution are 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) |
| |
| #include <boost/test/unit_test.hpp> |
| #include <boost/test/floating_point_comparison.hpp> |
| #include <boost/accumulators/accumulators.hpp> |
| #include <boost/accumulators/statistics/stats.hpp> |
| #include <boost/accumulators/statistics/mean.hpp> |
| |
| using namespace boost; |
| using namespace unit_test; |
| using namespace accumulators; |
| |
| namespace my |
| { |
| BOOST_PARAMETER_KEYWORD(tag, sum_acc) |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_stat |
| // |
| void test_stat() |
| { |
| accumulator_set<int, stats<tag::mean, tag::external<tag::sum, my::tag::sum_acc> > > acc; |
| accumulator_set<int, stats<tag::sum> > sum_acc; |
| |
| acc(1); |
| sum_acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(sum_acc)); |
| |
| acc(0); |
| sum_acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc, my::sum_acc = sum_acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc, my::sum_acc = sum_acc)); |
| |
| acc(2); |
| sum_acc(2); |
| BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5); |
| BOOST_CHECK_EQUAL(3u, count(acc)); |
| BOOST_CHECK_EQUAL(3, sum(acc, my::sum_acc = sum_acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_reference |
| // |
| void test_reference() |
| { |
| typedef accumulator_set<int, stats<tag::sum> > sum_acc_type; |
| sum_acc_type sum_acc; |
| accumulator_set< |
| int |
| , stats< |
| tag::mean |
| , tag::external<tag::sum, my::tag::sum_acc> |
| , tag::reference<sum_acc_type, my::tag::sum_acc> |
| > |
| > acc(my::sum_acc = sum_acc); |
| |
| acc(1); |
| sum_acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(sum_acc)); |
| |
| acc(0); |
| sum_acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc(2); |
| sum_acc(2); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(3u, count(acc)); |
| BOOST_CHECK_EQUAL(3, sum(acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_reference2 |
| // |
| void test_reference2() |
| { |
| typedef accumulator_set<int, stats<tag::sum> > sum_acc_type; |
| sum_acc_type sum_acc; |
| accumulator_set< |
| int |
| , stats< |
| tag::mean |
| , tag::external<tag::sum, my::tag::sum_acc, sum_acc_type> |
| > |
| > acc(my::sum_acc = sum_acc); |
| |
| acc(1); |
| sum_acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(sum_acc)); |
| |
| acc(0); |
| sum_acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc(2); |
| sum_acc(2); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(3u, count(acc)); |
| BOOST_CHECK_EQUAL(3, sum(acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // init_unit_test_suite |
| // |
| test_suite* init_unit_test_suite( int argc, char* argv[] ) |
| { |
| test_suite *test = BOOST_TEST_SUITE("external_accumulator test"); |
| |
| test->add(BOOST_TEST_CASE(&test_stat)); |
| test->add(BOOST_TEST_CASE(&test_reference)); |
| test->add(BOOST_TEST_CASE(&test_reference2)); |
| |
| return test; |
| } |