1// (C) Copyright Eric Niebler 2008.
2// Use, modification and distribution are subject to the
3// Boost Software License, Version 1.0. (See accompanying file
4// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
5
6#include <boost/test/unit_test.hpp>
7#include <boost/accumulators/accumulators.hpp>
8#include <boost/accumulators/statistics/stats.hpp>
9#include <boost/accumulators/statistics/rolling_sum.hpp>
10#include <sstream>
11#include <boost/archive/text_oarchive.hpp>
12#include <boost/archive/text_iarchive.hpp>
13
14using namespace boost;
15using namespace unit_test;
16using namespace accumulators;
17
18///////////////////////////////////////////////////////////////////////////////
19// test_stat
20//
21void test_stat()
22{
23 accumulator_set<int, stats<tag::rolling_sum> > acc(tag::rolling_window::window_size = 3);
24
25 BOOST_CHECK_EQUAL(0, rolling_sum(acc));
26
27 acc(1);
28 BOOST_CHECK_EQUAL(1, rolling_sum(acc));
29
30 acc(2);
31 BOOST_CHECK_EQUAL(3, rolling_sum(acc));
32
33 acc(3);
34 BOOST_CHECK_EQUAL(6, rolling_sum(acc));
35
36 acc(4);
37 BOOST_CHECK_EQUAL(9, rolling_sum(acc));
38
39 acc(5);
40 BOOST_CHECK_EQUAL(12, rolling_sum(acc));
41}
42
43///////////////////////////////////////////////////////////////////////////////
44// test_persistency
45//
46void test_persistency()
47{
48 std::stringstream ss;
49 {
50 accumulator_set<int, stats<tag::rolling_sum> > acc(tag::rolling_window::window_size = 3);
51 acc(1);
52 acc(2);
53 acc(3);
54 acc(4);
55 acc(5);
56 BOOST_CHECK_EQUAL(12, rolling_sum(acc));
57 boost::archive::text_oarchive oa(ss);
58 acc.serialize(ar&: oa, file_version: 0);
59 }
60 accumulator_set<int, stats<tag::rolling_sum> > acc(tag::rolling_window::window_size = 3);
61 boost::archive::text_iarchive ia(ss);
62 acc.serialize(ar&: ia, file_version: 0);
63 BOOST_CHECK_EQUAL(12, rolling_sum(acc));
64}
65
66///////////////////////////////////////////////////////////////////////////////
67// init_unit_test_suite
68//
69test_suite* init_unit_test_suite( int argc, char* argv[] )
70{
71 test_suite *test = BOOST_TEST_SUITE("rolling sum test");
72
73 test->add(BOOST_TEST_CASE(&test_stat));
74 test->add(BOOST_TEST_CASE(&test_persistency));
75
76 return test;
77}
78

source code of boost/libs/accumulators/test/rolling_sum.cpp