123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120 |
- // (C) Copyright Gaetano Mendola 2010, Simon West 2011.
- // 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/accumulators/accumulators.hpp>
- #include <boost/accumulators/statistics/stats.hpp>
- #include <boost/accumulators/statistics/sum_kahan.hpp>
- #include <boost/accumulators/statistics/variates/covariate.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;
- ///////////////////////////////////////////////////////////////////////////////
- // test_sum_kahan
- //
- void test_sum_kahan()
- {
- accumulator_set<float, stats<tag::sum_kahan> > acc;
- BOOST_CHECK_EQUAL(0.0f, sum_kahan(acc));
- for (size_t i = 0; i < 1e6; ++i) {
- acc(1e-6f);
- }
- BOOST_CHECK_EQUAL(1.0f, sum_kahan(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_sum_of_weights_kahan
- //
- void test_sum_of_weights_kahan()
- {
- accumulator_set<float, stats<tag::sum_of_weights_kahan>, float > acc;
- BOOST_CHECK_EQUAL(0.0f, sum_of_weights_kahan(acc));
- for (size_t i = 0; i < 1e6; ++i) {
- acc(0, weight = 1e-6f);
- }
- BOOST_CHECK_EQUAL(1.0f, sum_of_weights_kahan(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_sum_of_variates_kahan
- //
- void test_sum_of_variates_kahan()
- {
- accumulator_set<
- float,
- stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
- float
- >
- acc;
- BOOST_CHECK_EQUAL(0.0f, sum_of_variates_kahan(acc));
- for (size_t i = 0; i < 1e6; ++i) {
- acc(0, covariate1 = 1e-6f);
- }
- BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_persistency
- //
- void test_persistency()
- {
- std::stringstream ss;
- {
- accumulator_set<
- float,
- stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
- float
- >
- acc;
- BOOST_CHECK_EQUAL(0.0f, sum_of_variates_kahan(acc));
- for (size_t i = 0; i < 1e6; ++i) {
- acc(0, covariate1 = 1e-6f);
- }
- BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
- boost::archive::text_oarchive oa(ss);
- acc.serialize(oa, 0);
- }
- accumulator_set<
- float,
- stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
- float
- >
- acc;
- boost::archive::text_iarchive ia(ss);
- acc.serialize(ia, 0);
- BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // init_unit_test_suite
- //
- test_suite* init_unit_test_suite( int argc, char* argv[] )
- {
- test_suite *test = BOOST_TEST_SUITE("sum kahan tests");
- test->add(BOOST_TEST_CASE(&test_sum_kahan));
- test->add(BOOST_TEST_CASE(&test_sum_of_weights_kahan));
- test->add(BOOST_TEST_CASE(&test_sum_of_variates_kahan));
- test->add(BOOST_TEST_CASE(&test_persistency));
- return test;
- }
|