ceph/src/boost/libs/numeric/odeint/test/const_step_time_iterator.cpp

   1 /*
   2  [auto_generated]
   3  libs/numeric/odeint/test/const_step_time_iterator.cpp
   4
   5  [begin_description]
   6  This file tests the const step time iterator.
   7  [end_description]
   8
   9  Copyright 2012-2013 Karsten Ahnert
  10  Copyright 2012-2013 Mario Mulansky
  11
  12  Distributed under the Boost Software License, Version 1.0.
  13  (See accompanying file LICENSE_1_0.txt or
  14  copy at http://www.boost.org/LICENSE_1_0.txt)
  15  */
  16
  17
  18 #define BOOST_TEST_MODULE odeint_const_step_time_iterator
  19
  20 #include <iterator>
  21 #include <algorithm>
  22 #include <vector>
  23
  24 #include <boost/numeric/odeint/config.hpp>
  25 #include <boost/array.hpp>
  26 #include <boost/range/algorithm/copy.hpp>
  27 #include <boost/range/algorithm/for_each.hpp>
  28 #include <boost/mpl/vector.hpp>
  29
  30 #include <boost/test/unit_test.hpp>
  31 #include <boost/test/floating_point_comparison.hpp>
  32
  33 #include <boost/numeric/odeint/iterator/const_step_time_iterator.hpp>
  34 #include "dummy_steppers.hpp"
  35 #include "dummy_odes.hpp"
  36 #include "dummy_observers.hpp"
  37
  38 namespace mpl = boost::mpl;
  39 using namespace boost::numeric::odeint;
  40
  41 typedef dummy_stepper::state_type state_type;
  42 typedef dummy_stepper::value_type value_type;
  43 typedef dummy_stepper::time_type time_type;
  44 typedef std::vector< std::pair< state_type , time_type > > result_vector;
  45
  46 BOOST_AUTO_TEST_SUITE( const_step_time_iterator_test )
  47
  48 typedef mpl::vector<
  49     dummy_stepper
  50     , dummy_dense_output_stepper
  51     > dummy_steppers;
  52
  53
  54
  55 BOOST_AUTO_TEST_CASE_TEMPLATE( copy_stepper_iterator , Stepper , dummy_steppers )
  56 {
  57     typedef const_step_time_iterator< Stepper , empty_system , state_type > iterator_type;
  58     state_type x = {{ 1.0 }};
  59     iterator_type iter1 = iterator_type( Stepper() , empty_system() , x , 0.0 , 1.0 , 0.1 );
  60     iterator_type iter2 = iter1;
  61     BOOST_CHECK_EQUAL( &( iter1->first ) , &( iter2->first ) );
  62     BOOST_CHECK_EQUAL( &( iter1->first ) , &x );
  63     BOOST_CHECK( iter1.same( iter2 ) );
  64 }
  65
  66 BOOST_AUTO_TEST_CASE_TEMPLATE( assignment_stepper_iterator , Stepper , dummy_steppers )
  67 {
  68     typedef const_step_time_iterator< Stepper , empty_system , state_type > iterator_type;
  69     state_type x1 = {{ 1.0 }} , x2 = {{ 2.0 }};
  70     iterator_type iter1 = iterator_type( Stepper() , empty_system() , x1 , 0.0 , 1.0 , 0.1 );
  71     iterator_type iter2 = iterator_type( Stepper() , empty_system() , x2 , 0.0 , 1.0 , 0.2 );
  72     BOOST_CHECK_EQUAL( &( iter1->first ) , &x1 );
  73     BOOST_CHECK_EQUAL( &( iter2->first ) , &x2 );
  74     BOOST_CHECK( !iter1.same( iter2 ) );
  75     iter2 = iter1;
  76     BOOST_CHECK_EQUAL( &( iter1->first ) , &x1 );
  77     BOOST_CHECK_EQUAL( &( iter2->first ) , &x1 );
  78     BOOST_CHECK( iter1.same( iter2 ) );
  79 }
  80
  81 BOOST_AUTO_TEST_CASE_TEMPLATE( stepper_iterator_factory , Stepper , dummy_steppers )
  82 {
  83     Stepper stepper;
  84     empty_system system;
  85     state_type x = {{ 1.0 }};
  86
  87     std::for_each(
  88         make_const_step_time_iterator_begin( stepper , boost::ref( system ) , x , 0.0 , 1.0 , 0.1 ) ,
  89         make_const_step_time_iterator_end( stepper , boost::ref( system ) , x ) ,
  90         dummy_observer() );
  91
  92     BOOST_CHECK_CLOSE( x[0] , 3.5 , 1.0e-13 );
  93 }
  94
  95 BOOST_AUTO_TEST_CASE_TEMPLATE( stepper_range , Stepper , dummy_steppers )
  96 {
  97     Stepper stepper;
  98     empty_system system;
  99     state_type x = {{ 1.0 }};
 100
 101     boost::for_each( make_const_step_time_range( stepper , boost::ref( system ) , x , 0.0 , 1.0 , 0.1 ) ,
 102                      dummy_observer() );
 103
 104     BOOST_CHECK_CLOSE( x[0] , 3.5 , 1.0e-13 );
 105 }
 106
 107 BOOST_AUTO_TEST_CASE_TEMPLATE( stepper_iterator_with_reference_wrapper_factory , Stepper , dummy_steppers )
 108 {
 109     Stepper stepper;
 110     empty_system system;
 111     state_type x = {{ 1.0 }};
 112
 113     std::for_each(
 114         make_const_step_time_iterator_begin( boost::ref( stepper ) , boost::ref( system ) , x , 0.0 , 1.0 , 0.1 ) ,
 115         make_const_step_time_iterator_end( boost::ref( stepper ) , boost::ref( system ) , x ) ,
 116         dummy_observer() );
 117
 118     BOOST_CHECK_CLOSE( x[0] , 3.5 , 1.0e-13 );
 119 }
 120
 121 BOOST_AUTO_TEST_CASE_TEMPLATE( stepper_range_with_reference_wrapper , Stepper , dummy_steppers )
 122 {
 123     Stepper stepper;
 124     empty_system system;
 125     state_type x = {{ 1.0 }};
 126
 127     boost::for_each( make_const_step_time_range( boost::ref( stepper ) , boost::ref( system ) , x , 0.0 , 1.0 , 0.1 ) ,
 128                      dummy_observer() );
 129
 130     BOOST_CHECK_CLOSE( x[0] , 3.5 , 1.0e-13 );
 131 }
 132
 133
 134
 135 BOOST_AUTO_TEST_CASE_TEMPLATE( transitivity1 , Stepper , dummy_steppers )
 136 {
 137     typedef const_step_time_iterator< Stepper , empty_system , state_type > stepper_iterator;
 138
 139     state_type x = {{ 1.0 }};
 140     stepper_iterator first1( Stepper() , empty_system() , x , 1.5 , 1.0 , 0.1 );
 141     stepper_iterator last1( Stepper() , empty_system() , x );
 142     stepper_iterator last2( Stepper() , empty_system() , x );
 143
 144     BOOST_CHECK( first1 == last1 );
 145     BOOST_CHECK( first1 == last2 );
 146     BOOST_CHECK( last1 == last2 );
 147
 148     first1 = stepper_iterator( Stepper() , empty_system() , x , 2.0 , 2.0 , 0.1 );
 149     last1 = stepper_iterator( Stepper() , empty_system() , x );
 150     BOOST_CHECK( first1 != last1 );
 151     BOOST_CHECK( ++first1 == last1 );
 152 }
 153
 154 BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm , Stepper , dummy_steppers )
 155 {
 156     typedef const_step_time_iterator< Stepper , empty_system , state_type > stepper_iterator;
 157     state_type x = {{ 1.0 }};
 158     result_vector res;
 159     stepper_iterator first( Stepper() , empty_system() , x , 0.0 , 0.35 , 0.1 );
 160     stepper_iterator last( Stepper() , empty_system() , x );
 161
 162     std::copy( first , last , std::back_insert_iterator< result_vector >( res ) );
 163
 164     BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
 165     BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
 166     BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
 167     BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
 168     BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
 169     BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
 170     BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
 171     BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
 172     BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
 173     BOOST_CHECK_CLOSE( x[0] , 1.75 , 1.0e-13 );
 174 }
 175
 176 BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm_with_factory , Stepper , dummy_steppers )
 177 {
 178     state_type x = {{ 1.0 }};
 179     result_vector res;
 180     std::copy( make_const_step_time_iterator_begin( Stepper() , empty_system() , x , 0.0 , 0.35 , 0.1 ) ,
 181                make_const_step_time_iterator_end( Stepper() , empty_system() , x ) ,
 182                std::back_insert_iterator< result_vector >( res ) );
 183
 184     BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
 185     BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
 186     BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
 187     BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
 188     BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
 189     BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
 190     BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
 191     BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
 192     BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
 193     BOOST_CHECK_CLOSE( x[0] , 1.75 , 1.0e-13 );
 194 }
 195
 196 BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm_with_range_factory , Stepper , dummy_steppers )
 197 {
 198     state_type x = {{ 1.0 }};
 199     result_vector res;
 200     boost::range::copy( make_const_step_time_range( Stepper() , empty_system() , x , 0.0 , 0.35 , 0.1 ) ,
 201                         std::back_insert_iterator< result_vector >( res ) );
 202
 203     BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
 204     BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
 205     BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
 206     BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
 207     BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
 208     BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
 209     BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
 210     BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
 211     BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
 212     BOOST_CHECK_CLOSE( x[0] , 1.75 , 1.0e-13 );
 213 }
 214
 215
 216
 217
 218 BOOST_AUTO_TEST_SUITE_END()