| // (C) Copyright Eric Niebler 2008. |
| // 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/mpl/assert.hpp> |
| #include <boost/type_traits/is_same.hpp> |
| #include <boost/accumulators/accumulators.hpp> |
| #include <boost/accumulators/statistics/stats.hpp> |
| #include <boost/accumulators/statistics/rolling_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< |
| tag::rolling_mean |
| > |
| > acc(tag::rolling_mean::window_size = 5), test_acc(tag::rolling_mean::window_size = 5, sample = 0); |
| |
| acc(1); |
| BOOST_CHECK_CLOSE(1., rolling_mean(acc), 1e-5); |
| |
| acc(2); |
| BOOST_CHECK_CLOSE(1.5, rolling_mean(acc), 1e-5); |
| |
| acc(3); |
| BOOST_CHECK_CLOSE(2., rolling_mean(acc), 1e-5); |
| |
| acc(4); |
| BOOST_CHECK_CLOSE(2.5, rolling_mean(acc), 1e-5); |
| |
| acc(5); |
| BOOST_CHECK_CLOSE(3., rolling_mean(acc), 1e-5); |
| |
| acc(6); |
| BOOST_CHECK_CLOSE(4., rolling_mean(acc), 1e-5); |
| |
| acc(7); |
| BOOST_CHECK_CLOSE(5., rolling_mean(acc), 1e-5); |
| |
| assert_is_double(rolling_mean(acc)); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // init_unit_test_suite |
| // |
| test_suite* init_unit_test_suite( int argc, char* argv[] ) |
| { |
| test_suite *test = BOOST_TEST_SUITE("rolling mean test"); |
| |
| test->add(BOOST_TEST_CASE(&test_stat)); |
| |
| return test; |
| } |