ff9432f97b
* Add, and update, documentation build targets. * adding serialization to stats * serialize rolling stats
121 lines
3.2 KiB
C++
121 lines
3.2 KiB
C++
// (C) Copyright Gaetano Mendola 2010, Simon West 2011.
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// Use, modification and distribution are subject to the
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// Boost Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/test/unit_test.hpp>
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#include <boost/accumulators/accumulators.hpp>
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#include <boost/accumulators/statistics/stats.hpp>
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#include <boost/accumulators/statistics/sum_kahan.hpp>
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#include <boost/accumulators/statistics/variates/covariate.hpp>
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#include <sstream>
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#include <boost/archive/text_oarchive.hpp>
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#include <boost/archive/text_iarchive.hpp>
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using namespace boost;
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using namespace unit_test;
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using namespace accumulators;
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///////////////////////////////////////////////////////////////////////////////
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// test_sum_kahan
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//
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void test_sum_kahan()
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{
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accumulator_set<float, stats<tag::sum_kahan> > acc;
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BOOST_CHECK_EQUAL(0.0f, sum_kahan(acc));
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for (size_t i = 0; i < 1e6; ++i) {
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acc(1e-6f);
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}
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BOOST_CHECK_EQUAL(1.0f, sum_kahan(acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_sum_of_weights_kahan
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//
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void test_sum_of_weights_kahan()
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{
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accumulator_set<float, stats<tag::sum_of_weights_kahan>, float > acc;
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BOOST_CHECK_EQUAL(0.0f, sum_of_weights_kahan(acc));
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for (size_t i = 0; i < 1e6; ++i) {
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acc(0, weight = 1e-6f);
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}
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BOOST_CHECK_EQUAL(1.0f, sum_of_weights_kahan(acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_sum_of_variates_kahan
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//
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void test_sum_of_variates_kahan()
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{
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accumulator_set<
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float,
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stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
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float
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>
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acc;
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BOOST_CHECK_EQUAL(0.0f, sum_of_variates_kahan(acc));
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for (size_t i = 0; i < 1e6; ++i) {
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acc(0, covariate1 = 1e-6f);
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}
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BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_persistency
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//
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void test_persistency()
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{
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std::stringstream ss;
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{
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accumulator_set<
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float,
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stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
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float
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>
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acc;
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BOOST_CHECK_EQUAL(0.0f, sum_of_variates_kahan(acc));
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for (size_t i = 0; i < 1e6; ++i) {
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acc(0, covariate1 = 1e-6f);
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}
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BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
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boost::archive::text_oarchive oa(ss);
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acc.serialize(oa, 0);
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}
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accumulator_set<
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float,
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stats<tag::sum_of_variates_kahan<float, tag::covariate1> >,
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float
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>
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acc;
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boost::archive::text_iarchive ia(ss);
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acc.serialize(ia, 0);
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BOOST_CHECK_EQUAL(1.0f, sum_of_variates_kahan(acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// init_unit_test_suite
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//
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test_suite* init_unit_test_suite( int argc, char* argv[] )
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{
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test_suite *test = BOOST_TEST_SUITE("sum kahan tests");
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test->add(BOOST_TEST_CASE(&test_sum_kahan));
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test->add(BOOST_TEST_CASE(&test_sum_of_weights_kahan));
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test->add(BOOST_TEST_CASE(&test_sum_of_variates_kahan));
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test->add(BOOST_TEST_CASE(&test_persistency));
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return test;
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}
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