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// Copyright 2016 Bogumił Chojnowski
// bogumil DOT chojnowski AT gmail DOT com
// This is 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 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 <memory>
// back-end
#include "BackCommon.hpp"
//front-end
#include <boost/msm/front/state_machine_def.hpp>
#ifndef BOOST_MSM_NONSTANDALONE_TEST
#define BOOST_TEST_MODULE test_constructor_movable_only_types
#endif
#include <boost/test/unit_test.hpp>
#include <boost/make_unique.hpp>
namespace msm = boost::msm;
namespace mpl = boost::mpl;
namespace
{
struct Lightbulp
{
Lightbulp(int c) : current(c) {}
int current;
};
// events
struct ev_toggle {};
// front-end: define the FSM structure
struct bistable_switch_ : public msm::front::state_machine_def<bistable_switch_>
{
bistable_switch_(std::unique_ptr<Lightbulp> bulp, int load)
: bulp_(std::move(bulp))
{
BOOST_CHECK_MESSAGE(bulp_->current == 3, "Wrong current value");
BOOST_CHECK_MESSAGE(load == 5, "Wrong load value");
bulp_->current = 10;
}
std::unique_ptr<Lightbulp> bulp_;
// The list of FSM states
struct Off : public msm::front::state<>
{
template <typename Event, typename FSM>
void on_entry(Event const&, FSM& ) { }
template <typename Event, typename FSM>
void on_exit(Event const&, FSM&) { }
};
struct On : public msm::front::state<>
{
template <typename Event, typename FSM>
void on_entry(Event const&, FSM& ) { }
template <typename Event, typename FSM>
void on_exit(Event const&, FSM&) { }
};
// the initial state of the player SM. Must be defined
typedef Off initial_state;
void turn_on(ev_toggle const&) { bulp_->current = 11; }
void turn_off(ev_toggle const&) { bulp_->current = 9; }
typedef bistable_switch_ bs_; // makes transition table cleaner
// Transition table for player
struct transition_table : mpl::vector<
// Start Event Next Action Guard
// +---------+-------------+---------+---------------------+----------------------+
a_row < Off , ev_toggle , On , &bs_::turn_on >,
a_row < On , ev_toggle , Off , &bs_::turn_off >
// +---------+-------------+---------+---------------------+----------------------+
> {};
// Replaces the default no-transition response.
template <typename Event, typename FSM>
void no_transition(Event const&, FSM&, int)
{
BOOST_FAIL("no_transition called!");
}
};
// Pick a back-end
typedef get_test_machines<bistable_switch_> bistable_switches;
BOOST_AUTO_TEST_CASE_TEMPLATE(test_constructor_movable_only_types, bistable_switch, bistable_switches)
{
auto bulp = boost::make_unique<Lightbulp>(3);
bistable_switch bs(std::move(bulp), 5);
BOOST_CHECK_MESSAGE(bs.bulp_->current == 10, "Wrong returned current value");
bs.start();
bs.process_event(ev_toggle());
BOOST_CHECK_MESSAGE(bs.bulp_->current == 11, "Wrong returned current value");
bs.process_event(ev_toggle());
BOOST_CHECK_MESSAGE(bs.bulp_->current == 9, "Wrong returned current value");
bs.stop();
}
}
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