libstdc++-v3/testsuite/util/regression/rand/assoc/rand_regression_test.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005-2020 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the terms
   7 // of the GNU General Public License as published by the Free Software
   8 // Foundation; either version 3, or (at your option) any later
   9 // version.
  10
  11 // This library is distributed in the hope that it will be useful, but
  12 // WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License
  17 // along with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20
  21 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  22
  23 // Permission to use, copy, modify, sell, and distribute this software
  24 // is hereby granted without fee, provided that the above copyright
  25 // notice appears in all copies, and that both that copyright notice
  26 // and this permission notice appear in supporting documentation. None
  27 // of the above authors, nor IBM Haifa Research Laboratories, make any
  28 // representation about the suitability of this software for any
  29 // purpose. It is provided "as is" without express or implied
  30 // warranty.
  31
  32 /**
  33  * @file rand_regression_test.hpp
  34  * Contains a random-operation test.
  35  */
  36
  37 #ifndef PB_DS_ASSOC_RAND_REGRESSION_TEST_HPP
  38 #define PB_DS_ASSOC_RAND_REGRESSION_TEST_HPP
  39
  40 #include <iostream>
  41 #include <vector>
  42 #include <regression/rand/assoc/container_rand_regression_test.h>
  43 #include <io/verified_cmd_line_input.hpp>
  44 #include <common_type/assoc/common_type.hpp>
  45 #include <regression/basic_type.hpp>
  46 #include <regression/common_type.hpp>
  47
  48 namespace __gnu_pbds
  49 {
  50 namespace test
  51 {
  52 namespace detail
  53 {
  54 #ifndef PB_DS_REGRESSION
  55 #error "Must define PB_DS_REGRESSION"
  56 #endif
  57
  58   struct rand_reg_test
  59   {
  60   public:
  61     rand_reg_test(size_t seed, size_t n, size_t m, double tp, double ip,
  62                   double ep, double cp, double mp, bool d)
  63     : m_sd(seed), m_n(n), m_m(m), m_tp(tp), m_ip(ip), m_ep(ep), m_cp(cp),
  64       m_mp(mp), m_disp(d)
  65     {
  66       if (m_disp)
  67         xml_test_rand_regression_formatter(seed, n, m, tp, ip, ep, cp, mp);
  68     }
  69
  70     template<typename Cntnr>
  71     void
  72     operator()(Cntnr)
  73     {
  74       unsigned long ul = static_cast<unsigned long>(m_sd);
  75       container_rand_regression_test<Cntnr> t(ul, m_n, m_n, m_tp, m_ip,
  76                                               m_ep, m_cp, m_mp, m_disp);
  77       t();
  78     }
  79
  80   private:
  81     const size_t m_sd;
  82     const size_t m_n;
  83     const size_t m_m;
  84     const double m_tp;
  85     const double m_ip;
  86     const double m_ep;
  87     const double m_cp;
  88     const double m_mp;
  89     const bool m_disp;
  90   };
  91
  92   void
  93   usage(const std::string& r_name);
  94
  95   void
  96   verify_params(size_t&, size_t&, size_t&,
  97                 double&, double&, double&, double&, double&, bool&);
  98 } // namespace detail
  99
 100   template<typename TL>
 101   int
 102   rand_regression_test(size_t iter, size_t keys, const std::string name, TL tl)
 103   {
 104     // Sane defaults.
 105     size_t n = iter;
 106     size_t m = keys;
 107     size_t sd = twister_rand_gen::get_time_determined_seed();
 108     double tp = 0.2;
 109     double ip = 0.6;
 110     double ep = 0.2;
 111     double cp = 0.001;
 112     double mp = 0.25;
 113     bool disp = true; // show progress
 114
 115     try
 116       {
 117         detail::verify_params(sd, n, m, tp, ip, ep, cp, mp, disp);
 118       }
 119     catch(__gnu_pbds::test::illegal_input_error&)
 120       {
 121         detail::usage(name);
 122         return -1;
 123       }
 124     catch(...)
 125       {
 126         return -2;
 127       };
 128
 129     try
 130       {
 131         detail::rand_reg_test tst(sd, n, m, tp, ip, ep, cp, mp, disp);
 132         __gnu_cxx::typelist::apply(tst, tl);
 133       }
 134     catch (...)
 135       {
 136         std::cerr << "Test failed with seed " << sd << std::endl;
 137         throw;
 138       }
 139
 140     return 0;
 141   }
 142
 143 namespace detail
 144 {
 145   inline void
 146   usage(const std::string& name)
 147   {
 148     using namespace std;
 149     cerr << "usage: " << name
 150          << " <sd> <n> <m> <tp> <ip> <ep> <cp> <mp> ['t' | 'f']"
 151          << endl << endl;
 152
 153     cerr << "This test performs basic regression tests on various associative containers."
 154       "For each container, it performs a sequence of operations. At each iteration, it does "
 155       "the following: " << endl;
 156     cerr << "*  Performs an operation on the container " << endl;
 157     cerr << "*  Performs the same operation on an cntnr object" << endl;
 158     cerr << "*  Possibly compares the container to the cntnr object" << endl;
 159     cerr << "*  Checks that exceptions (thrown by an allocator) "
 160             "do not violate exception guarantees";
 161
 162     cerr << endl << endl;
 163
 164     cerr << "sd = seed for random-number generator; "
 165             "0 = time determined value" << endl;
 166     cerr << "n = number of iterations" << endl;
 167     cerr << "m = number of distinct values" << endl;
 168     cerr << "tp = probability that an exception will be actively thrown" << endl;
 169     cerr << "ip = probability that an operation will be insert" << endl;
 170     cerr << "ep = probability that an operation will be erase" << endl;
 171     cerr << "cp = probability that an operation will be clear" << endl;
 172     cerr << "(therefore, 1 - (ip + ep + cp) = probability of any other operation)" << endl;
 173     cerr << "mp = probability that the container will be compared to the cntnr object" << endl;
 174     cerr << "'t' or 'f' determine whether progress will be displayed" << endl;
 175   }
 176
 177   inline void
 178   verify_params(size_t& r_seed, size_t& r_n,
 179                 size_t& r_m, double& r_tp, double& r_ip, double& r_ep,
 180                 double& r_cp, double& r_mp, bool& r_d)
 181   {
 182     verify_prob(r_tp);
 183     verify_prob(r_ip);
 184     verify_prob(r_ep);
 185     verify_prob(r_cp);
 186     verify_prob(r_mp);
 187     verify_prob(r_ip + r_ep + r_cp);
 188   }
 189 } // namespace detail
 190 } // namespace test
 191 } // namespace __gnu_pbds
 192
 193 #endif