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- // (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;
- namespace my
- {
- BOOST_PARAMETER_KEYWORD(tag, sum_acc)
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_stat
- //
- void test_stat()
- {
- accumulator_set<int, stats<tag::mean, tag::external<tag::sum, my::tag::sum_acc> > > acc;
- accumulator_set<int, stats<tag::sum> > sum_acc;
- acc(1);
- sum_acc(1);
- BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5);
- BOOST_CHECK_EQUAL(1u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(sum_acc));
- acc(0);
- sum_acc(0);
- BOOST_CHECK_CLOSE(0.5, mean(acc, my::sum_acc = sum_acc), 1e-5);
- BOOST_CHECK_EQUAL(2u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(acc, my::sum_acc = sum_acc));
- acc(2);
- sum_acc(2);
- BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5);
- BOOST_CHECK_EQUAL(3u, count(acc));
- BOOST_CHECK_EQUAL(3, sum(acc, my::sum_acc = sum_acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_reference
- //
- void test_reference()
- {
- typedef accumulator_set<int, stats<tag::sum> > sum_acc_type;
- sum_acc_type sum_acc;
- accumulator_set<
- int
- , stats<
- tag::mean
- , tag::external<tag::sum, my::tag::sum_acc>
- , tag::reference<sum_acc_type, my::tag::sum_acc>
- >
- > acc(my::sum_acc = sum_acc);
- acc(1);
- sum_acc(1);
- BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(1u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(sum_acc));
- acc(0);
- sum_acc(0);
- BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(2u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(acc));
- acc(2);
- sum_acc(2);
- BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(3u, count(acc));
- BOOST_CHECK_EQUAL(3, sum(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // test_reference2
- //
- void test_reference2()
- {
- typedef accumulator_set<int, stats<tag::sum> > sum_acc_type;
- sum_acc_type sum_acc;
- accumulator_set<
- int
- , stats<
- tag::mean
- , tag::external<tag::sum, my::tag::sum_acc, sum_acc_type>
- >
- > acc(my::sum_acc = sum_acc);
- acc(1);
- sum_acc(1);
- BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(1u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(sum_acc));
- acc(0);
- sum_acc(0);
- BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(2u, count(acc));
- BOOST_CHECK_EQUAL(1, sum(acc));
- acc(2);
- sum_acc(2);
- BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
- BOOST_CHECK_EQUAL(3u, count(acc));
- BOOST_CHECK_EQUAL(3, sum(acc));
- }
- ///////////////////////////////////////////////////////////////////////////////
- // init_unit_test_suite
- //
- test_suite* init_unit_test_suite( int argc, char* argv[] )
- {
- test_suite *test = BOOST_TEST_SUITE("external_accumulator test");
- test->add(BOOST_TEST_CASE(&test_stat));
- test->add(BOOST_TEST_CASE(&test_reference));
- test->add(BOOST_TEST_CASE(&test_reference2));
- return test;
- }
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