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
14 using namespace boost;
15 using namespace unit_test;
16 using namespace accumulators;
17
18 ///////////////////////////////////////////////////////////////////////////////
19 // test_stat
20 //
test_stat()21 void 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 //
test_persistency()46 void 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(oa, 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(ia, 0);
63 BOOST_CHECK_EQUAL(12, rolling_sum(acc));
64 }
65
66 ///////////////////////////////////////////////////////////////////////////////
67 // init_unit_test_suite
68 //
init_unit_test_suite(int argc,char * argv[])69 test_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