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// Copyright 2024 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)
// Event deferral behaves differently in backmp11
#define BOOST_MSM_TEST_SKIP_BACKMP11
// back-end
#include "BackCommon.hpp"
//front-end
#include <boost/msm/front/functor_row.hpp>
#include <boost/msm/front/state_machine_def.hpp>
#ifndef BOOST_MSM_NONSTANDALONE_TEST
#define BOOST_TEST_MODULE back_many_deferred_transitions
#endif
#include <boost/test/unit_test.hpp>
namespace msm = boost::msm;
namespace msmf = boost::msm::front;
namespace mpl = boost::mpl;
namespace
{
// ----- Events
struct Event1 {};
struct Event2 {};
struct Event3 {};
struct Event4 {};
// ----- State machine
struct Sm1_ :msmf::state_machine_def<Sm1_> {
// States
struct State1 :msmf::state<> {
template <class Event, class Fsm>
void on_entry(Event const&, Fsm&) const {
}
};
struct State2 :msmf::state<> {
template <class Event, class Fsm>
void on_entry(Event const&, Fsm&) const {
}
};
struct State3 :msmf::state<> {
template <class Event, class Fsm>
void on_entry(Event const&, Fsm&) const {
}
};
struct State4 :msmf::state<> {
template <class Event, class Fsm>
void on_entry(Event const&, Fsm&) const {
}
};
struct State5 :msmf::state<> {
template <class Event, class Fsm>
void on_entry(Event const&, Fsm&) const {
}
};
// Set initial state
typedef State1 initial_state;
// Enable deferred capability
typedef int activate_deferred_events;
// Transition table
struct transition_table :mpl::vector<
// Start Event Next Action Guard
msmf::Row < State1, Event1, msmf::none, msmf::Defer>,
msmf::Row < State1, Event2, msmf::none, msmf::Defer>,
msmf::Row < State1, Event3, msmf::none, msmf::Defer>,
msmf::Row < State1, Event4, State2 , msmf::none>,
msmf::Row < State2, Event3, msmf::none, msmf::Defer>,
msmf::Row < State2, Event1, msmf::none, msmf::Defer>,
msmf::Row < State2, Event2, State3 , msmf::none>,
msmf::Row < State3, Event1, State4 , msmf::none>,
msmf::Row < State3, Event3, State5 , msmf::none>,
msmf::Row < State4, Event3, State5 , msmf::none>,
msmf::Row < State5, Event1, State4 , msmf::none>
> {};
template <class Fsm, class Event>
void no_transition(Event const&, Fsm&, int /*state*/) {
}
};
// Pick a back-end
typedef get_test_machines<Sm1_> Sm1s;
BOOST_AUTO_TEST_CASE_TEMPLATE(back_many_deferred_transitions, Sm1, Sm1s)
{
Sm1 sm1;
sm1.start();
sm1.process_event(Event1());
sm1.process_event(Event2());
sm1.process_event(Event3());
sm1.process_event(Event4());
BOOST_CHECK_MESSAGE(sm1.current_state()[0] == 4, "State5 should be active");
}
}
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