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// Copyright 2010 Christophe Henry
// henry UNDERSCORE christophe AT hotmail DOT com
// This is an extended version of the state machine available in the boost::mpl library
// Distributed under the same license as the original.
// Copyright for the original version:
// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
// under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
#include <iostream>
// back-end
#include <boost/msm/back/state_machine.hpp>
//front-end
#include <boost/msm/front/state_machine_def.hpp>
#include <boost/msm/front/euml/euml.hpp>
#ifndef BOOST_MSM_NONSTANDALONE_TEST
#define BOOST_TEST_MODULE MyTest
#endif
#include <boost/test/unit_test.hpp>
namespace msm = boost::msm;
namespace mpl = boost::mpl;
using namespace boost::msm::front::euml;
namespace
{
// events
BOOST_MSM_EUML_EVENT(play)
BOOST_MSM_EUML_EVENT(end_pause)
BOOST_MSM_EUML_EVENT(stop)
BOOST_MSM_EUML_EVENT(pause)
BOOST_MSM_EUML_EVENT(open_close)
BOOST_MSM_EUML_EVENT(next_song)
BOOST_MSM_EUML_EVENT(previous_song)
BOOST_MSM_EUML_EVENT(error_found)
BOOST_MSM_EUML_EVENT(end_error)
BOOST_MSM_EUML_EVENT(do_terminate)
// Flags. Allow information about a property of the current state
BOOST_MSM_EUML_FLAG(PlayingPaused)
BOOST_MSM_EUML_FLAG(CDLoaded)
BOOST_MSM_EUML_FLAG(FirstSongPlaying)
// A "complicated" event type that carries some data.
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(std::string,cd_name)
BOOST_MSM_EUML_ATTRIBUTES((attributes_ << cd_name ), cd_detected_attributes)
BOOST_MSM_EUML_EVENT_WITH_ATTRIBUTES(cd_detected,cd_detected_attributes)
//states
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,entry_counter)
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,exit_counter)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),
attributes_ << entry_counter << exit_counter, configure_ << play),Empty)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),
attributes_ << entry_counter << exit_counter, configure_<< CDLoaded << play),Open)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),
attributes_ << entry_counter << exit_counter, configure_<< CDLoaded),Stopped)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),
attributes_ << entry_counter << exit_counter, configure_<< CDLoaded << PlayingPaused),Paused)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),AllOk)
BOOST_MSM_EUML_TERMINATE_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),
ErrorTerminate)
BOOST_MSM_EUML_INTERRUPT_STATE(( end_error,++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),
ErrorMode)
// Playing is now a state machine itself.
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,start_next_song_counter)
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,start_prev_song_guard_counter)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),
attributes_ << entry_counter << exit_counter, configure_<< FirstSongPlaying ),Song1)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Song2)
BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Song3)
// Playing has a transition table
BOOST_MSM_EUML_TRANSITION_TABLE((
// +------------------------------------------------------------------------------+
Song2 == Song1 + next_song ,
Song1 == Song2 + previous_song [True_()] / ++fsm_(start_prev_song_guard_counter) ,
Song3 == Song2 + next_song / ++fsm_(start_next_song_counter) ,
Song2 == Song3 + previous_song [True_()] / ++fsm_(start_prev_song_guard_counter)
// +------------------------------------------------------------------------------+
),playing_transition_table )
BOOST_MSM_EUML_DECLARE_STATE_MACHINE( (playing_transition_table, //STT
init_ << Song1, // Init State
++state_(entry_counter), // Entry
++state_(exit_counter), // Exit
attributes_ << entry_counter << exit_counter
<< start_next_song_counter
<< start_prev_song_guard_counter, // Attributes
configure_<< PlayingPaused << CDLoaded //flags
),Playing_)
// back-end
typedef msm::back::state_machine<Playing_> Playing_type;
Playing_type const Playing;
//fsm
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,start_playback_counter)
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,can_close_drawer_counter)
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,report_error_counter)
BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,report_end_error_counter)
BOOST_MSM_EUML_ACTION(No_Transition)
{
template <class FSM,class Event>
void operator()(Event const&,FSM&,int)
{
BOOST_FAIL("no_transition called!");
}
};
BOOST_MSM_EUML_TRANSITION_TABLE((
Playing == Stopped + play / ++fsm_(start_playback_counter),
Playing == Paused + end_pause ,
// +------------------------------------------------------------------------------+
Empty == Open + open_close / ++fsm_(can_close_drawer_counter),
// +------------------------------------------------------------------------------+
Open == Empty + open_close ,
Open == Paused + open_close ,
Open == Stopped + open_close ,
Open == Playing + open_close ,
// +------------------------------------------------------------------------------+
Paused == Playing + pause ,
// +------------------------------------------------------------------------------+
Stopped == Playing + stop ,
Stopped == Paused + stop ,
Stopped == Empty + cd_detected ,
Stopped == Stopped + stop ,
ErrorMode == AllOk + error_found / ++fsm_(report_error_counter),
AllOk == ErrorMode+ end_error / ++fsm_(report_end_error_counter),
ErrorTerminate== AllOk +do_terminate
// +------------------------------------------------------------------------------+
),transition_table)
BOOST_MSM_EUML_DECLARE_STATE_MACHINE(( transition_table, //STT
init_ << Empty << AllOk, // Init State
no_action, // Entry
no_action, // Exit
attributes_ << start_playback_counter << can_close_drawer_counter
<< report_error_counter << report_end_error_counter, // Attributes
configure_ << no_configure_, // configuration
No_Transition // no_transition handler
),
player_) //fsm name
// Pick a back-end
typedef msm::back::state_machine<player_> player;
//static char const* const state_names[] = { "Stopped", "Paused","Open", "Empty", "Playing" ,"AllOk","ErrorMode","ErrorTerminate" };
BOOST_AUTO_TEST_CASE( my_test )
{
player p;
// needed to start the highest-level SM. This will call on_entry and mark the start of the SM
p.start();
// test deferred event
// deferred in Empty and Open, will be handled only after event cd_detected
p.process_event(play);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Empty should be active"); //Empty
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(exit_counter) == 0,
"Open exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(entry_counter) == 0,"Playing entry not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(entry_counter) == 1,
"Empty entry not called correctly");
//flags
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(CDLoaded)>() == false,"CDLoaded should not be active");
p.process_event(open_close);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 2,"Open should be active"); //Open
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(exit_counter) == 1,
"Empty exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(entry_counter) == 1,
"Open entry not called correctly");
p.process_event(open_close);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Empty should be active"); //Empty
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(exit_counter) == 1,
"Open exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(entry_counter) == 2,
"Empty entry not called correctly");
BOOST_CHECK_MESSAGE(p.get_attribute(can_close_drawer_counter) == 1,"guard not called correctly");
//deferred event should have been processed
p.process_event(cd_detected("louie, louie"));
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(exit_counter) == 2,
"Empty exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 1,
"Stopped entry not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 1,
"Stopped exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(entry_counter) == 1,"Playing entry not called correctly");
BOOST_CHECK_MESSAGE(p.get_attribute(start_playback_counter) == 1,"action not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().current_state()[0] == 0,"Song1 should be active");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song1)&>().get_attribute(entry_counter) == 1,
"Song1 entry not called correctly");
//flags
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(PlayingPaused)>() == true,"PlayingPaused should be active");
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(FirstSongPlaying)>() == true,"FirstSongPlaying should be active");
p.process_event(next_song);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().current_state()[0] == 1,"Song2 should be active");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song2)&>().get_attribute(entry_counter) == 1,
"Song2 entry not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song1)&>().get_attribute(exit_counter) == 1,
"Song1 exit not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_attribute(start_next_song_counter) == 0,
"submachine action not called correctly");
p.process_event(next_song);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().current_state()[0] == 2,"Song3 should be active");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song3)&>().get_attribute(entry_counter) == 1,
"Song3 entry not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song2)&>().get_attribute(exit_counter) == 1,
"Song2 exit not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_attribute(start_next_song_counter) == 1,
"submachine action not called correctly");
p.process_event(previous_song);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().current_state()[0] == 1,"Song2 should be active");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song2)&>().get_attribute(entry_counter) == 2,
"Song2 entry not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_state<BOOST_MSM_EUML_STATE_NAME(Song3)&>().get_attribute(exit_counter) == 1,
"Song3 exit not called correctly");
BOOST_CHECK_MESSAGE(
p.get_state<Playing_type&>().get_attribute(start_prev_song_guard_counter) == 1,
"submachine guard not called correctly");
//flags
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(PlayingPaused)>() == true,"PlayingPaused should be active");
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(FirstSongPlaying)>() == false,"FirstSongPlaying should not be active");
p.process_event(pause());
BOOST_CHECK_MESSAGE(p.current_state()[0] == 1,"Paused should be active"); //Paused
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(exit_counter) == 1,"Playing exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(entry_counter) == 1,
"Paused entry not called correctly");
//flags
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(PlayingPaused)>() == true,"PlayingPaused should be active");
// go back to Playing
p.process_event(end_pause);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(exit_counter) == 1,
"Paused exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(entry_counter) == 2,"Playing entry not called correctly");
p.process_event(pause);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 1,"Paused should be active"); //Paused
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(exit_counter) == 2,"Playing exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(entry_counter) == 2,
"Paused entry not called correctly");
p.process_event(stop);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active"); //Stopped
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(exit_counter) == 2,
"Paused exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 2,
"Stopped entry not called correctly");
//flags
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(PlayingPaused)>() == false,"PlayingPaused should not be active");
BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(CDLoaded)>() == true,"CDLoaded should be active");
//BOOST_CHECK_MESSAGE(p.is_flag_active<BOOST_MSM_EUML_FLAG_NAME(CDLoaded),player::Flag_AND>() == false,"CDLoaded with AND should not be active");
p.process_event(stop);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active"); //Stopped
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 2,
"Stopped exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3,
"Stopped entry not called correctly");
//test interrupt
BOOST_CHECK_MESSAGE(p.current_state()[1] == 5,"AllOk should be active"); //AllOk
p.process_event(error_found);
BOOST_CHECK_MESSAGE(p.current_state()[1] == 6,"ErrorMode should be active"); //ErrorMode
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(AllOk)&>().get_attribute(exit_counter) == 1,
"AllOk exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(ErrorMode)&>().get_attribute(entry_counter) == 1,
"ErrorMode entry not called correctly");
// try generating more events
p.process_event(play);
BOOST_CHECK_MESSAGE(p.current_state()[1] == 6,"ErrorMode should be active"); //ErrorMode
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(AllOk)&>().get_attribute(exit_counter) == 1,
"AllOk exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(ErrorMode)&>().get_attribute(entry_counter) == 1,
"ErrorMode entry not called correctly");
BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active"); //Stopped
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 2,
"Stopped exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3,
"Stopped entry not called correctly");
p.process_event(end_error);
BOOST_CHECK_MESSAGE(p.current_state()[1] == 5,"AllOk should be active"); //AllOk
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(ErrorMode)&>().get_attribute(exit_counter) == 1,
"ErrorMode exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(AllOk)&>().get_attribute(entry_counter) == 2,
"AllOk entry not called correctly");
p.process_event(play);
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 3,
"Stopped exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(entry_counter) == 3,"Playing entry not called correctly");
//test terminate
BOOST_CHECK_MESSAGE(p.current_state()[1] == 5,"AllOk should be active"); //AllOk
p.process_event(do_terminate);
BOOST_CHECK_MESSAGE(p.current_state()[1] == 7,"ErrorTerminate should be active"); //ErrorTerminate
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(AllOk)&>().get_attribute(exit_counter) == 2,
"AllOk exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(ErrorTerminate)&>().get_attribute(entry_counter) == 1,
"ErrorTerminate entry not called correctly");
// try generating more events
p.process_event(stop);
BOOST_CHECK_MESSAGE(p.current_state()[1] == 7,"ErrorTerminate should be active"); //ErrorTerminate
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(ErrorTerminate)&>().get_attribute(exit_counter) == 0,
"ErrorTerminate exit not called correctly");
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(exit_counter) == 2,"Playing exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3,
"Stopped entry not called correctly");
p.process_event(end_error());
BOOST_CHECK_MESSAGE(p.current_state()[1] == 7,"ErrorTerminate should be active"); //ErrorTerminate
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(exit_counter) == 2,"Playing exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3,
"Stopped entry not called correctly");
p.process_event(stop());
BOOST_CHECK_MESSAGE(p.current_state()[1] == 7,"ErrorTerminate should be active"); //ErrorTerminate
BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active"); //Playing
BOOST_CHECK_MESSAGE(p.get_state<Playing_type&>().get_attribute(exit_counter) == 2,"Playing exit not called correctly");
BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3,
"Stopped entry not called correctly");
}
}
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