ceph/src/boost/libs/accumulators/test/count.cpp

   1 //  (C) Copyright Eric Niebler 2005.
   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/count.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 //
  21 void test_stat()
  22 {
  23     accumulator_set<int, stats<tag::count> > acc;
  24
  25     acc(1);
  26     BOOST_CHECK_EQUAL(1u, count(acc));
  27
  28     acc(1);
  29     BOOST_CHECK_EQUAL(2u, count(acc));
  30
  31     acc(1);
  32     BOOST_CHECK_EQUAL(3u, count(acc));
  33
  34     acc(1);
  35     BOOST_CHECK_EQUAL(4u, count(acc));
  36
  37     acc(1);
  38     BOOST_CHECK_EQUAL(5u, count(acc));
  39 }
  40
  41 ///////////////////////////////////////////////////////////////////////////////
  42 // test_persistency
  43 //
  44 void test_persistency()
  45 {
  46     // "persistent" storage
  47     std::stringstream ss;
  48     {
  49         accumulator_set<int, stats<tag::count> > acc;
  50         acc(1);
  51         acc(1);
  52         acc(1);
  53         acc(1);
  54         BOOST_CHECK_EQUAL(4u, count(acc));
  55         boost::archive::text_oarchive oa(ss);
  56         acc.serialize(oa, 0);
  57     }
  58     accumulator_set<int, stats<tag::count> > acc;
  59     BOOST_CHECK_EQUAL(0u, count(acc));
  60     boost::archive::text_iarchive ia(ss);
  61     acc.serialize(ia, 0);
  62     BOOST_CHECK_EQUAL(4u, count(acc));
  63
  64 }
  65
  66 ///////////////////////////////////////////////////////////////////////////////
  67 // init_unit_test_suite
  68 //
  69 test_suite* init_unit_test_suite( int argc, char* argv[] )
  70 {
  71     test_suite *test = BOOST_TEST_SUITE("count test");
  72
  73     test->add(BOOST_TEST_CASE(&test_stat));
  74     test->add(BOOST_TEST_CASE(&test_persistency));
  75
  76     return test;
  77 }