libstdc++-v3/testsuite/util/testsuite_containergen.h

   1 // Copyright (C) 2013-2018 Free Software Foundation, Inc.
   2 //
   3 // This file is part of the GNU ISO C++ Library.  This library is free
   4 // software; you can redistribute it and/or modify it under the terms
   5 // of the GNU General Public License as published by the Free Software
   6 // Foundation; either version 3, or (at your option) any later
   7 // version.
   8
   9 // This library is distributed in the hope that it will be useful, but
  10 // WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 // General Public License for more details.
  13
  14 // You should have received a copy of the GNU General Public License along
  15 // with this library; see the file COPYING3.  If not see
  16 // <http://www.gnu.org/licenses/>.
  17
  18 #ifndef _GLIBCXX_TESTSUITE_CONTAINER_GEN_H
  19 #define _GLIBCXX_TESTSUITE_CONTAINER_GEN_H
  20
  21 #include <testsuite_container_traits.h>
  22 #include <random>
  23
  24 namespace __gnu_test
  25 {
  26   template<typename ContainerType, typename Tester, typename RandomGen>
  27     void
  28     test_single_container(Tester test, RandomGen& rg, int length, int domain)
  29     {
  30       std::vector<int> values;
  31       auto dist = std::uniform_int_distribution<>(0, domain - 1);
  32
  33       for(int i = 0; i < length; ++i)
  34         values.push_back(dist(rg));
  35
  36       ContainerType con(values.data(), values.data() + length);
  37       test(con, rg);
  38     }
  39
  40   template<typename ContainerType, typename Tester, typename RandomGen>
  41     void
  42     test_special_containers(Tester test, RandomGen& rg, int length)
  43     {
  44       std::vector<int> values(length);
  45       ContainerType con(values.data(), values.data() + length);
  46
  47       for(int i = 0; i < length; ++i)
  48         values[i] = 0;
  49       test(con, rg);
  50
  51       for(int i = 0; i < length; ++i)
  52         values[i] = i;
  53       test(con, rg);
  54
  55       for(int i = 0; i < length; ++i)
  56         values[i] = -i;
  57       test(con, rg);
  58     }
  59
  60   template<typename ContainerType, typename Tester>
  61     void
  62     test_containers(Tester test)
  63     {
  64       std::mt19937_64 random_gen;
  65
  66 #ifdef SIMULATOR_TEST
  67       int loops = 10;
  68 #else
  69       int loops = 1000;
  70 #endif
  71
  72       for(int i = 0; i < loops; ++i)
  73         test_special_containers<ContainerType>(test, random_gen, i);
  74
  75       for(int i = 1; i < 100; ++i)
  76         for(int j = 0; j < loops; ++j)
  77           test_single_container<ContainerType>(test, random_gen, i, i);
  78
  79       for(int i = 0; i < loops; ++i)
  80         {
  81           test_single_container<ContainerType>(test, random_gen, 10, 10);
  82           test_single_container<ContainerType>(test, random_gen, 100, 10);
  83           test_single_container<ContainerType>(test, random_gen, 1000, 10);
  84           test_single_container<ContainerType>(test, random_gen, 10, 1000);
  85         }
  86
  87 #ifndef SIMULATOR_TEST
  88       for(int i = 0; i < 1000; ++i)
  89         {
  90           test_single_container<ContainerType>(test, random_gen, 10000, 10);
  91           test_single_container<ContainerType>(test, random_gen, 10000, 10000);
  92         }
  93 #endif
  94     }
  95 } // namespace __gnu_test
  96
  97 #endif