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- // Copyright (C) Eric Niebler 2008.
- // Copyright (C) Pieter Bastiaan Ober 2014.
- // 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>
- #include <sstream>
- #include <boost/archive/text_oarchive.hpp>
- #include <boost/archive/text_iarchive.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_rolling_mean_test_impl
- // implements a test for window_size = 5
- size_t window_size = 5;
- template<typename accumulator_set_type>
- void
- test_rolling_mean_test_impl(accumulator_set_type& acc)
- {
- 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));
- }
- template<typename accumulator_set_type>
- void
- test_rolling_mean_unsigned_test_impl(accumulator_set_type& acc)
- {
- acc(7U);
- BOOST_CHECK_CLOSE(7., rolling_mean(acc), 1e-5);
- acc(6U);
- BOOST_CHECK_CLOSE(6.5, rolling_mean(acc), 1e-5);
- acc(5U);
- BOOST_CHECK_CLOSE(6., rolling_mean(acc), 1e-5);
- acc(4U);
- BOOST_CHECK_CLOSE(5.5, rolling_mean(acc), 1e-5);
- acc(3U);
- BOOST_CHECK_CLOSE(5., rolling_mean(acc), 1e-5);
- acc(2U);
- BOOST_CHECK_CLOSE(4., rolling_mean(acc), 1e-5);
- acc(1U);
- BOOST_CHECK_CLOSE(3., rolling_mean(acc), 1e-5);
- assert_is_double(rolling_mean(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_persistency_impl
- //
- template<typename accumulator_set_type>
- void test_persistency_impl(accumulator_set_type& acc)
- {
- std::stringstream ss;
- {
- acc(1);
- acc(2);
- acc(3);
- acc(4);
- acc(5);
- acc(6);
- acc(7);
- BOOST_CHECK_CLOSE(5., rolling_mean(acc), 1e-5);
- boost::archive::text_oarchive oa(ss);
- acc.serialize(oa, 0);
- }
- // initialize from acc to make sure all values are passed
- accumulator_set_type other_acc = acc;
- // accumulate more, to make sure that deserialization set the right value
- // and not the copy ctor
- other_acc(100);
- other_acc(100);
- other_acc(100);
- other_acc(100);
- other_acc(100);
- boost::archive::text_iarchive ia(ss);
- other_acc.serialize(ia, 0);
- BOOST_CHECK_CLOSE(5., rolling_mean(other_acc), 1e-5);
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_rolling_mean
- void test_rolling_mean()
- {
- accumulator_set<int,stats<tag::immediate_rolling_mean> >
- acc_immediate_rolling_mean(tag::immediate_rolling_mean::window_size = window_size),
- acc_immediate_rolling_mean2(tag::immediate_rolling_mean::window_size = window_size, sample = 0);
- accumulator_set<int,stats<tag::rolling_mean(immediate)> >
- acc_immediate_rolling_mean3(tag::immediate_rolling_mean::window_size = window_size);
- accumulator_set<int,stats<tag::lazy_rolling_mean> >
- acc_lazy_rolling_mean(tag::lazy_rolling_mean::window_size = window_size),
- acc_lazy_rolling_mean2(tag::lazy_rolling_mean::window_size = window_size, sample = 0);
- accumulator_set<int,stats<tag::rolling_mean(lazy)> >
- acc_lazy_rolling_mean3(tag::lazy_rolling_mean::window_size = window_size);
- accumulator_set<int,stats<tag::rolling_mean> >
- acc_default_rolling_mean(tag::rolling_mean::window_size = window_size),
- acc_default_rolling_mean2(tag::rolling_mean::window_size = window_size, sample = 0);
- //// test the different implementations
- test_rolling_mean_test_impl(acc_lazy_rolling_mean);
- test_rolling_mean_test_impl(acc_default_rolling_mean);
- test_rolling_mean_test_impl(acc_immediate_rolling_mean);
- test_rolling_mean_test_impl(acc_lazy_rolling_mean2);
- test_rolling_mean_test_impl(acc_default_rolling_mean2);
- test_rolling_mean_test_impl(acc_immediate_rolling_mean2);
- test_rolling_mean_test_impl(acc_lazy_rolling_mean3);
- test_rolling_mean_test_impl(acc_immediate_rolling_mean3);
- //// test that the default implementation is the 'immediate' computation
- BOOST_REQUIRE(sizeof(acc_lazy_rolling_mean) != sizeof(acc_immediate_rolling_mean));
- BOOST_CHECK (sizeof(acc_default_rolling_mean) == sizeof(acc_immediate_rolling_mean));
- //// test the equivalence of the different ways to indicate a feature
- BOOST_CHECK (sizeof(acc_lazy_rolling_mean) == sizeof(acc_lazy_rolling_mean2));
- BOOST_CHECK (sizeof(acc_lazy_rolling_mean) == sizeof(acc_lazy_rolling_mean3));
- BOOST_CHECK (sizeof(acc_immediate_rolling_mean) == sizeof(acc_immediate_rolling_mean2));
- BOOST_CHECK (sizeof(acc_immediate_rolling_mean) == sizeof(acc_immediate_rolling_mean3));
- //// test unsigned int with both implementations
- accumulator_set<unsigned int,stats<tag::immediate_rolling_mean> >
- acc_immediate_rolling_mean4(tag::immediate_rolling_mean::window_size = window_size),
- acc_immediate_rolling_mean5(tag::immediate_rolling_mean::window_size = window_size, sample = 0);
- test_rolling_mean_unsigned_test_impl(acc_immediate_rolling_mean4);
- test_rolling_mean_unsigned_test_impl(acc_immediate_rolling_mean5);
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_persistency
- void test_persistency()
- {
- accumulator_set<int,stats<tag::immediate_rolling_mean> >
- acc_immediate_rolling_mean(tag::immediate_rolling_mean::window_size = window_size),
- acc_immediate_rolling_mean2(tag::immediate_rolling_mean::window_size = window_size, sample = 0);
- accumulator_set<int,stats<tag::rolling_mean(immediate)> >
- acc_immediate_rolling_mean3(tag::immediate_rolling_mean::window_size = window_size);
- accumulator_set<int,stats<tag::lazy_rolling_mean> >
- acc_lazy_rolling_mean(tag::lazy_rolling_mean::window_size = window_size),
- acc_lazy_rolling_mean2(tag::lazy_rolling_mean::window_size = window_size, sample = 0);
- accumulator_set<int,stats<tag::rolling_mean(lazy)> >
- acc_lazy_rolling_mean3(tag::lazy_rolling_mean::window_size = window_size);
- accumulator_set<int,stats<tag::rolling_mean> >
- acc_default_rolling_mean(tag::rolling_mean::window_size = window_size),
- acc_default_rolling_mean2(tag::rolling_mean::window_size = window_size, sample = 0);
- //// test the different implementations
- test_persistency_impl(acc_lazy_rolling_mean);
- test_persistency_impl(acc_default_rolling_mean);
- test_persistency_impl(acc_immediate_rolling_mean);
- test_persistency_impl(acc_lazy_rolling_mean2);
- test_persistency_impl(acc_default_rolling_mean2);
- test_persistency_impl(acc_immediate_rolling_mean2);
- test_persistency_impl(acc_lazy_rolling_mean3);
- test_persistency_impl(acc_immediate_rolling_mean3);
- }
- ///////////////////////////////////////////////////////////////////////////////
- // 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_rolling_mean));
- test->add(BOOST_TEST_CASE(&test_persistency));
- return test;
- }
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