pdns/test-dns_random_hh.cc

   1 #define BOOST_TEST_DYN_LINK
   2 #define BOOST_TEST_NO_MAIN
   3 #ifndef HAVE_CXX11
   4
   5
   6 #ifdef HAVE_CONFIG_H
   7 #include "config.h"
   8 #endif
   9 #include <boost/test/unit_test.hpp>
  10 #include <boost/assign/std/map.hpp>
  11 #include <boost/foreach.hpp>
  12 #include <boost/accumulators/statistics/median.hpp>
  13 #include <boost/accumulators/statistics/mean.hpp>
  14 #include <boost/accumulators/accumulators.hpp>
  15 #include <boost/accumulators/statistics.hpp>
  16
  17 #include "dns_random.hh"
  18 #include "namespaces.hh"
  19
  20
  21 using namespace boost;
  22 using namespace boost::accumulators;
  23
  24 typedef accumulator_set<
  25   double
  26   , stats<boost::accumulators::tag::median(with_p_square_quantile),
  27           boost::accumulators::tag::mean(immediate)
  28           >
  29   > acc_t;
  30
  31
  32
  33 BOOST_AUTO_TEST_SUITE(test_dns_random_hh)
  34
  35
  36
  37 BOOST_AUTO_TEST_CASE(test_dns_random_average) {
  38
  39   dns_random_init("loremipsumdolorx");
  40   acc_t acc;
  41
  42   for(unsigned int n=0; n < 100000; ++n)  {
  43     acc(dns_random(100000)/100000.0);
  44   }
  45   BOOST_CHECK_CLOSE(0.5, median(acc), 2.0); // within 2%
  46   BOOST_CHECK_CLOSE(0.5, mean(acc), 2.0);
  47
  48
  49   // please add covariance tests, chi-square, Kolmogorov-Smirnov
  50 }
  51
  52
  53
  54 BOOST_AUTO_TEST_SUITE_END()
  55
  56 #endif