mirror of
https://github.com/boostorg/odeint.git
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134 lines
4.6 KiB
C++
134 lines
4.6 KiB
C++
/*
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[auto_generated]
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libs/numeric/odeint/test/const_step_time_iterator.cpp
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[begin_description]
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This file tests the const step time iterator.
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[end_description]
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Copyright 2009-2012 Karsten Ahnert
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Copyright 2009-2012 Mario Mulansky
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or
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copy at http://www.boost.org/LICENSE_1_0.txt)
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*/
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#define BOOST_TEST_MODULE odeint_const_step_time_iterator
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#include <iterator>
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#include <algorithm>
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#include <vector>
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#include <boost/numeric/odeint/config.hpp>
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#include <boost/array.hpp>
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#include <boost/range/algorithm/copy.hpp>
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#include <boost/mpl/vector.hpp>
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#include <boost/test/unit_test.hpp>
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#include <boost/test/floating_point_comparison.hpp>
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#include <boost/numeric/odeint/iterator/const_step_time_iterator.hpp>
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#include "dummy_steppers.hpp"
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namespace mpl = boost::mpl;
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using namespace boost::numeric::odeint;
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struct dummy_system { };
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typedef dummy_stepper::state_type state_type;
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typedef dummy_stepper::value_type value_type;
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typedef dummy_stepper::time_type time_type;
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typedef std::vector< std::pair< state_type , time_type > > result_vector;
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BOOST_AUTO_TEST_SUITE( const_step_time_iterator_test )
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typedef mpl::vector<
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dummy_stepper
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, dummy_dense_output_stepper
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> dummy_steppers;
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BOOST_AUTO_TEST_CASE_TEMPLATE( transitivity1 , Stepper , dummy_steppers )
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{
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typedef const_step_time_iterator< Stepper , dummy_system > stepper_iterator;
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state_type x = {{ 1.0 }};
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stepper_iterator first1( Stepper() , dummy_system() , x , 1.5 , 1.0 , 0.1 );
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stepper_iterator last1( Stepper() , dummy_system() , x );
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stepper_iterator last2( Stepper() , dummy_system() , x );
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BOOST_CHECK( first1 == last1 );
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BOOST_CHECK( first1 == last2 );
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BOOST_CHECK( last1 == last2 );
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm , Stepper , dummy_steppers )
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{
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typedef const_step_time_iterator< Stepper , dummy_system > stepper_iterator;
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state_type x = {{ 1.0 }};
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result_vector res;
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stepper_iterator first( Stepper() , dummy_system() , x , 0.0 , 0.35 , 0.1 );
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stepper_iterator last( Stepper() , dummy_system() , x );
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std::copy( first , last , std::back_insert_iterator< result_vector >( res ) );
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BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
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BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
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BOOST_CHECK_CLOSE( x[0] , 2.0 , 1.0e-13 );
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm_with_factory , Stepper , dummy_steppers )
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{
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state_type x = {{ 1.0 }};
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result_vector res;
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std::copy( make_const_step_time_iterator_begin( Stepper() , dummy_system() , x , 0.0 , 0.35 , 0.1 ) ,
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make_const_step_time_iterator_end( Stepper() , dummy_system() , x ) ,
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std::back_insert_iterator< result_vector >( res ) );
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BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
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BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
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BOOST_CHECK_CLOSE( x[0] , 2.0 , 1.0e-13 );
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}
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BOOST_AUTO_TEST_CASE_TEMPLATE( copy_algorithm_with_range_factory , Stepper , dummy_steppers )
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{
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state_type x = {{ 1.0 }};
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result_vector res;
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boost::range::copy( make_const_step_time_range( Stepper() , dummy_system() , x , 0.0 , 0.35 , 0.1 ) ,
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std::back_insert_iterator< result_vector >( res ) );
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BOOST_CHECK_EQUAL( res.size() , size_t( 4 ) );
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BOOST_CHECK_CLOSE( res[0].first[0] , 1.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[0].second , 0.0 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].first[0] , 1.25 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[1].second , 0.1 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].first[0] , 1.5 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[2].second , 0.2 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].first[0] , 1.75 , 1.0e-13 );
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BOOST_CHECK_CLOSE( res[3].second , 0.3 , 1.0e-13 );
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BOOST_CHECK_CLOSE( x[0] , 2.0 , 1.0e-13 );
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}
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BOOST_AUTO_TEST_SUITE_END()
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