libs/histogram/test/algorithm_empty_test.cpp

   1 // Copyright 2018 Hans Dembinski
   2 //
   3 // Distributed under the Boost Software License, Version 1.0.
   4 // (See accompanying file LICENSE_1_0.txt
   5 // or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7 #include <array>
   8 #include <boost/core/lightweight_test.hpp>
   9 #include <boost/histogram/accumulators/weighted_mean.hpp>
  10 #include <boost/histogram/algorithm/empty.hpp>
  11 #include <boost/histogram/axis/integer.hpp>
  12 #include <unordered_map>
  13 #include <vector>
  14 #include "throw_exception.hpp"
  15 #include "utility_histogram.hpp"
  16
  17 using namespace boost::histogram;
  18 using boost::histogram::algorithm::empty;
  19
  20 template <typename Tag>
  21 void run_tests() {
  22   auto ax = axis::integer<>(0, 10);
  23
  24   {
  25     auto h = make(Tag(), ax);
  26     BOOST_TEST(empty(h, coverage::all));
  27     BOOST_TEST(empty(h, coverage::inner));
  28     for (int i = -1; i < 11; ++i) {
  29       h.reset();
  30       h(i);
  31       BOOST_TEST(!empty(h, coverage::all));
  32       if (i == -1 || i == 10) {
  33         BOOST_TEST(empty(h, coverage::inner));
  34       } else {
  35         BOOST_TEST(!empty(h, coverage::inner));
  36       }
  37     }
  38   }
  39
  40   {
  41     auto h = make_s(Tag(), std::vector<accumulators::weighted_mean<>>(),
  42                     axis::integer<>(0, 10), axis::integer<>(0, 10));
  43     BOOST_TEST(empty(h, coverage::all));
  44     BOOST_TEST(empty(h, coverage::inner));
  45     h.reset();
  46     h(weight(2), -2, -4, sample(3));
  47     BOOST_TEST(!empty(h, coverage::all));
  48     BOOST_TEST(empty(h, coverage::inner));
  49     h.reset();
  50     h(weight(1), -4, 2, sample(2));
  51     BOOST_TEST(!empty(h, coverage::all));
  52     BOOST_TEST(empty(h, coverage::inner));
  53     h.reset();
  54     h(weight(3), 3, 5, sample(1));
  55     BOOST_TEST(!empty(h, coverage::all));
  56     BOOST_TEST(!empty(h, coverage::inner));
  57   }
  58 }
  59
  60 int main() {
  61   run_tests<static_tag>();
  62   run_tests<dynamic_tag>();
  63
  64   return boost::report_errors();
  65 }