130 lines
3.5 KiB
C++
130 lines
3.5 KiB
C++
// (C) Copyright Eric Niebler 2005.
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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/test/floating_point_comparison.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/mean.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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namespace my
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{
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BOOST_PARAMETER_KEYWORD(tag, sum_acc)
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_stat
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//
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void test_stat()
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{
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accumulator_set<int, stats<tag::mean, tag::external<tag::sum, my::tag::sum_acc> > > acc;
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accumulator_set<int, stats<tag::sum> > sum_acc;
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acc(1);
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sum_acc(1);
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BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5);
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BOOST_CHECK_EQUAL(1u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(sum_acc));
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acc(0);
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sum_acc(0);
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BOOST_CHECK_CLOSE(0.5, mean(acc, my::sum_acc = sum_acc), 1e-5);
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BOOST_CHECK_EQUAL(2u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(acc, my::sum_acc = sum_acc));
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acc(2);
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sum_acc(2);
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BOOST_CHECK_CLOSE(1., mean(acc, my::sum_acc = sum_acc), 1e-5);
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BOOST_CHECK_EQUAL(3u, count(acc));
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BOOST_CHECK_EQUAL(3, sum(acc, my::sum_acc = sum_acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_reference
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//
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void test_reference()
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{
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typedef accumulator_set<int, stats<tag::sum> > sum_acc_type;
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sum_acc_type sum_acc;
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accumulator_set<
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int
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, stats<
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tag::mean
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, tag::external<tag::sum, my::tag::sum_acc>
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, tag::reference<sum_acc_type, my::tag::sum_acc>
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>
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> acc(my::sum_acc = sum_acc);
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acc(1);
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sum_acc(1);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(1u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(sum_acc));
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acc(0);
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sum_acc(0);
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BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(2u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(acc));
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acc(2);
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sum_acc(2);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(3u, count(acc));
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BOOST_CHECK_EQUAL(3, sum(acc));
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}
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///////////////////////////////////////////////////////////////////////////////
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// test_reference2
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//
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void test_reference2()
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{
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typedef accumulator_set<int, stats<tag::sum> > sum_acc_type;
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sum_acc_type sum_acc;
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accumulator_set<
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int
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, stats<
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tag::mean
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, tag::external<tag::sum, my::tag::sum_acc, sum_acc_type>
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>
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> acc(my::sum_acc = sum_acc);
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acc(1);
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sum_acc(1);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(1u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(sum_acc));
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acc(0);
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sum_acc(0);
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BOOST_CHECK_CLOSE(0.5, mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(2u, count(acc));
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BOOST_CHECK_EQUAL(1, sum(acc));
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acc(2);
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sum_acc(2);
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BOOST_CHECK_CLOSE(1., mean(acc), 1e-5);
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BOOST_CHECK_EQUAL(3u, count(acc));
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BOOST_CHECK_EQUAL(3, sum(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("external_accumulator test");
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test->add(BOOST_TEST_CASE(&test_stat));
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test->add(BOOST_TEST_CASE(&test_reference));
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test->add(BOOST_TEST_CASE(&test_reference2));
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return test;
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}
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