pdns/test-dns_random_hh.cc

   1 #define BOOST_TEST_DYN_LINK
   2 #define BOOST_TEST_NO_MAIN
   3
   4 // Disable this code for gcc 4.8 and lower
   5 #if (__GNUC__ == 4 && __GNUC_MINOR__ > 8) || !__GNUC__
   6
   7 #ifdef HAVE_CONFIG_H
   8 #include "config.h"
   9 #endif
  10 #include <boost/test/unit_test.hpp>
  11 #include <boost/assign/std/map.hpp>
  12
  13 #include <boost/accumulators/statistics/median.hpp>
  14 #include <boost/accumulators/statistics/mean.hpp>
  15 #include <boost/accumulators/accumulators.hpp>
  16 #include <boost/accumulators/statistics.hpp>
  17
  18 #include "dns_random.hh"
  19 #include "namespaces.hh"
  20
  21
  22 using namespace boost;
  23 using namespace boost::accumulators;
  24
  25 typedef accumulator_set<
  26   double
  27   , stats<boost::accumulators::tag::median(with_p_square_quantile),
  28           boost::accumulators::tag::mean(immediate)
  29           >
  30   > acc_t;
  31
  32
  33
  34 BOOST_AUTO_TEST_SUITE(test_dns_random_hh)
  35
  36
  37
  38 BOOST_AUTO_TEST_CASE(test_dns_random_average) {
  39
  40   dns_random_init("loremipsumdolorx");
  41   acc_t acc;
  42
  43   for(unsigned int n=0; n < 100000; ++n)  {
  44     acc(dns_random(100000)/100000.0);
  45   }
  46   BOOST_CHECK_CLOSE(0.5, median(acc), 2.0); // within 2%
  47   BOOST_CHECK_CLOSE(0.5, mean(acc), 2.0);
  48
  49
  50   // please add covariance tests, chi-square, Kolmogorov-Smirnov
  51 }
  52
  53
  54
  55 BOOST_AUTO_TEST_SUITE_END()
  56
  57 #endif