| // (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; |
| |
| template<typename T> |
| void assert_is_double(T const &) |
| { |
| BOOST_MPL_ASSERT((is_same<T, double>)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_stat |
| // |
| void test_stat() |
| { |
| accumulator_set<int, stats<droppable<tag::mean> > > acc, test_acc(sample = 0); |
| |
| acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc.drop<tag::mean>(); |
| |
| acc(2); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| assert_is_double(mean(acc)); |
| |
| |
| accumulator_set<int, stats<droppable<tag::mean(immediate)> > > acc2, test_acc2(sample = 0); |
| |
| acc2(1); |
| BOOST_CHECK_CLOSE(1., mean(acc2), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc2)); |
| |
| acc2(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc2), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc2)); |
| |
| acc2.drop<tag::mean>(); |
| |
| acc2(2); |
| BOOST_CHECK_CLOSE(0.5, mean(acc2), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc2)); |
| |
| assert_is_double(mean(acc2)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_stat2 |
| // |
| void test_stat2() |
| { |
| accumulator_set<int, stats<droppable<tag::sum>, droppable<tag::mean> > > acc, test_acc(sample = 0); |
| |
| acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc.drop<tag::mean>(); |
| acc.drop<tag::sum>(); |
| |
| acc(2); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| assert_is_double(mean(acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // test_stat3 |
| // |
| void test_stat3() |
| { |
| accumulator_set<int, stats<droppable<tag::sum>, droppable<tag::count>, droppable<tag::mean> > > acc, test_acc(sample = 0); |
| |
| acc(1); |
| BOOST_CHECK_CLOSE(1., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(1u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc(0); |
| BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(2u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc.drop<tag::mean>(); |
| acc.drop<tag::sum>(); |
| |
| acc(2); |
| BOOST_CHECK_CLOSE(1./3., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(3u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| acc.drop<tag::count>(); |
| acc(3); |
| BOOST_CHECK_CLOSE(1./3., mean(acc), 1e-5); |
| BOOST_CHECK_EQUAL(3u, count(acc)); |
| BOOST_CHECK_EQUAL(1, sum(acc)); |
| |
| assert_is_double(mean(acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // init_unit_test_suite |
| // |
| test_suite* init_unit_test_suite( int argc, char* argv[] ) |
| { |
| test_suite *test = BOOST_TEST_SUITE("droppable test"); |
| |
| test->add(BOOST_TEST_CASE(&test_stat)); |
| test->add(BOOST_TEST_CASE(&test_stat2)); |
| test->add(BOOST_TEST_CASE(&test_stat3)); |
| |
| return test; |
| } |