diff options
Diffstat (limited to 'src/boost/libs/msm/test/CompositeMachine.cpp')
| -rw-r--r-- | src/boost/libs/msm/test/CompositeMachine.cpp | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/src/boost/libs/msm/test/CompositeMachine.cpp b/src/boost/libs/msm/test/CompositeMachine.cpp new file mode 100644 index 00000000..674f316b --- /dev/null +++ b/src/boost/libs/msm/test/CompositeMachine.cpp @@ -0,0 +1,345 @@ +// 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> +#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; + +namespace +{ + // events + struct play {}; + struct end_pause {}; + struct stop {}; + struct pause {}; + struct open_close {}; + struct NextSong {}; + struct PreviousSong {}; + struct cd_detected + { + cd_detected(std::string name) + : name(name) + {} + std::string name; + }; + + // front-end: define the FSM structure + struct player_ : public msm::front::state_machine_def<player_> + { + unsigned int start_playback_counter; + unsigned int can_close_drawer_counter; + + player_(): + start_playback_counter(0), + can_close_drawer_counter(0) + {} + // The list of FSM states + struct Empty : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + struct Open : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + + // sm_ptr still supported but deprecated as functors are a much better way to do the same thing + struct Stopped : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + + struct Playing_ : public msm::front::state_machine_def<Playing_> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + unsigned int start_next_song_counter; + unsigned int start_prev_song_guard_counter; + + Playing_(): + start_next_song_counter(0), + start_prev_song_guard_counter(0) + {} + + // The list of FSM states + struct Song1 : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + struct Song2 : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + struct Song3 : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + // the initial state. Must be defined + typedef Song1 initial_state; + // transition actions + void start_next_song(NextSong const&) {++start_next_song_counter; } + void start_prev_song(PreviousSong const&) { } + // guard conditions + bool start_prev_song_guard(PreviousSong const&) {++start_prev_song_guard_counter;return true; } + + typedef Playing_ pl; // makes transition table cleaner + // Transition table for Playing + struct transition_table : mpl::vector4< + // Start Event Next Action Guard + // +---------+-------------+---------+---------------------+----------------------+ + _row < Song1 , NextSong , Song2 >, + row < Song2 , PreviousSong, Song1 , &pl::start_prev_song,&pl::start_prev_song_guard>, + a_row < Song2 , NextSong , Song3 , &pl::start_next_song >, + g_row < Song3 , PreviousSong, Song2 ,&pl::start_prev_song_guard> + // +---------+-------------+---------+---------------------+----------------------+ + > {}; + // Replaces the default no-transition response. + template <class FSM,class Event> + void no_transition(Event const&, FSM&,int) + { + BOOST_FAIL("no_transition called!"); + } + }; + // back-end + typedef msm::back::state_machine<Playing_> Playing; + + // state not defining any entry or exit + struct Paused : public msm::front::state<> + { + template <class Event,class FSM> + void on_entry(Event const&,FSM& ) {++entry_counter;} + template <class Event,class FSM> + void on_exit(Event const&,FSM& ) {++exit_counter;} + int entry_counter; + int exit_counter; + }; + + // the initial state of the player SM. Must be defined + typedef Empty initial_state; + + // transition actions + void start_playback(play const&) {++start_playback_counter; } + void open_drawer(open_close const&) { } + void store_cd_info(cd_detected const&) { } + void stop_playback(stop const&) { } + void pause_playback(pause const&) { } + void resume_playback(end_pause const&) { } + void stop_and_open(open_close const&) { } + void stopped_again(stop const&){} + //guards + bool can_close_drawer(open_close const&) + { + ++can_close_drawer_counter; + return true; + } + + + typedef player_ p; // makes transition table cleaner + + // Transition table for player + struct transition_table : mpl::vector< + // Start Event Next Action Guard + // +---------+-------------+---------+---------------------+----------------------+ + a_row < Stopped , play , Playing , &p::start_playback >, + a_row < Stopped , open_close , Open , &p::open_drawer >, + _row < Stopped , stop , Stopped >, + // +---------+-------------+---------+---------------------+----------------------+ + g_row < Open , open_close , Empty , &p::can_close_drawer >, + // +---------+-------------+---------+---------------------+----------------------+ + a_row < Empty , open_close , Open , &p::open_drawer >, + a_row < Empty , cd_detected , Stopped , &p::store_cd_info >, + // +---------+-------------+---------+---------------------+----------------------+ + a_row < Playing , stop , Stopped , &p::stop_playback >, + a_row < Playing , pause , Paused , &p::pause_playback >, + a_row < Playing , open_close , Open , &p::stop_and_open >, + // +---------+-------------+---------+---------------------+----------------------+ + a_row < Paused , end_pause , Playing , &p::resume_playback >, + a_row < Paused , stop , Stopped , &p::stop_playback >, + a_row < Paused , open_close , Open , &p::stop_and_open > + // +---------+-------------+---------+---------------------+----------------------+ + > {}; + // Replaces the default no-transition response. + template <class FSM,class Event> + void no_transition(Event const&, FSM&,int) + { + BOOST_FAIL("no_transition called!"); + } + // init counters + template <class Event,class FSM> + void on_entry(Event const&,FSM& fsm) + { + fsm.template get_state<player_::Stopped&>().entry_counter=0; + fsm.template get_state<player_::Stopped&>().exit_counter=0; + fsm.template get_state<player_::Open&>().entry_counter=0; + fsm.template get_state<player_::Open&>().exit_counter=0; + fsm.template get_state<player_::Empty&>().entry_counter=0; + fsm.template get_state<player_::Empty&>().exit_counter=0; + fsm.template get_state<player_::Playing&>().entry_counter=0; + fsm.template get_state<player_::Playing&>().exit_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song1&>().entry_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song1&>().exit_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song2&>().entry_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song2&>().exit_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song3&>().entry_counter=0; + fsm.template get_state<player_::Playing&>().template get_state<player_::Playing::Song3&>().exit_counter=0; + fsm.template get_state<player_::Paused&>().entry_counter=0; + fsm.template get_state<player_::Paused&>().exit_counter=0; + } + + }; + // Pick a back-end + typedef msm::back::state_machine<player_> player; + +// static char const* const state_names[] = { "Stopped", "Open", "Empty", "Playing", "Paused" }; + + + BOOST_AUTO_TEST_CASE( my_test ) + { + player p; + + p.start(); + BOOST_CHECK_MESSAGE(p.get_state<player_::Empty&>().entry_counter == 1,"Empty entry not called correctly"); + + p.process_event(open_close()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 1,"Open should be active"); //Open + BOOST_CHECK_MESSAGE(p.get_state<player_::Empty&>().exit_counter == 1,"Empty exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Open&>().entry_counter == 1,"Open entry not called correctly"); + + p.process_event(open_close()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 2,"Empty should be active"); //Empty + BOOST_CHECK_MESSAGE(p.get_state<player_::Open&>().exit_counter == 1,"Open exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Empty&>().entry_counter == 2,"Empty entry not called correctly"); + BOOST_CHECK_MESSAGE(p.can_close_drawer_counter == 1,"guard not called correctly"); + + p.process_event(cd_detected("louie, louie")); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active"); //Stopped + BOOST_CHECK_MESSAGE(p.get_state<player_::Empty&>().exit_counter == 2,"Empty exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Stopped&>().entry_counter == 1,"Stopped entry not called correctly"); + + p.process_event(play()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Playing should be active"); //Playing + BOOST_CHECK_MESSAGE(p.get_state<player_::Stopped&>().exit_counter == 1,"Stopped exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().entry_counter == 1,"Playing entry not called correctly"); + BOOST_CHECK_MESSAGE(p.start_playback_counter == 1,"action not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().current_state()[0] == 0,"Song1 should be active"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song1&>().entry_counter == 1, + "Song1 entry not called correctly"); + + p.process_event(NextSong()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Playing should be active"); //Playing + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().current_state()[0] == 1,"Song2 should be active"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song2&>().entry_counter == 1, + "Song2 entry not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song1&>().exit_counter == 1, + "Song1 exit not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().start_next_song_counter == 0, + "submachine action not called correctly"); + + p.process_event(NextSong()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Playing should be active"); //Playing + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().current_state()[0] == 2,"Song3 should be active"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song3&>().entry_counter == 1, + "Song3 entry not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song2&>().exit_counter == 1, + "Song2 exit not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().start_next_song_counter == 1, + "submachine action not called correctly"); + + p.process_event(PreviousSong()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Playing should be active"); //Playing + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().current_state()[0] == 1,"Song2 should be active"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song2&>().entry_counter == 2, + "Song2 entry not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().get_state<player_::Playing::Song3&>().exit_counter == 1, + "Song3 exit not called correctly"); + BOOST_CHECK_MESSAGE( + p.get_state<player_::Playing&>().start_prev_song_guard_counter == 1, + "submachine guard not called correctly"); + + p.process_event(pause()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Paused should be active"); //Paused + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().exit_counter == 1,"Playing exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Paused&>().entry_counter == 1,"Paused entry not called correctly"); + + // go back to Playing + p.process_event(end_pause()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Playing should be active"); //Playing + BOOST_CHECK_MESSAGE(p.get_state<player_::Paused&>().exit_counter == 1,"Paused exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().entry_counter == 2,"Playing entry not called correctly"); + + p.process_event(pause()); + BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Paused should be active"); //Paused + BOOST_CHECK_MESSAGE(p.get_state<player_::Playing&>().exit_counter == 2,"Playing exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Paused&>().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<player_::Paused&>().exit_counter == 2,"Paused exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Stopped&>().entry_counter == 2,"Stopped 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<player_::Stopped&>().exit_counter == 2,"Stopped exit not called correctly"); + BOOST_CHECK_MESSAGE(p.get_state<player_::Stopped&>().entry_counter == 3,"Stopped entry not called correctly"); + } +} + |