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118 lines
4.0 KiB
C++
118 lines
4.0 KiB
C++
// Copyright 2016 Bogumił Chojnowski
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// bogumil DOT chojnowski AT gmail DOT com
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// This is extended version of the state machine available in the boost::mpl library
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// Distributed under the same license as the original.
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// Copyright for the original version:
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// Copyright 2010 Christophe Henry
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// henry UNDERSCORE christophe AT hotmail DOT com
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// This is an extended version of the state machine available in the boost::mpl library
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// Distributed under the same license as the original.
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// Copyright for the original version:
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// Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed
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// under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#include <memory>
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// back-end
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#include "BackCommon.hpp"
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//front-end
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#include <boost/msm/front/state_machine_def.hpp>
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#ifndef BOOST_MSM_NONSTANDALONE_TEST
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#define BOOST_TEST_MODULE test_constructor_movable_only_types
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#endif
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#include <boost/test/unit_test.hpp>
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#include <boost/make_unique.hpp>
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namespace msm = boost::msm;
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namespace mpl = boost::mpl;
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namespace
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{
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struct Lightbulp
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{
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Lightbulp(int c) : current(c) {}
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int current;
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};
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// events
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struct ev_toggle {};
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// front-end: define the FSM structure
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struct bistable_switch_ : public msm::front::state_machine_def<bistable_switch_>
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{
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bistable_switch_(std::unique_ptr<Lightbulp> bulp, int load)
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: bulp_(std::move(bulp))
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{
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BOOST_CHECK_MESSAGE(bulp_->current == 3, "Wrong current value");
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BOOST_CHECK_MESSAGE(load == 5, "Wrong load value");
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bulp_->current = 10;
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}
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std::unique_ptr<Lightbulp> bulp_;
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// The list of FSM states
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struct Off : public msm::front::state<>
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{
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template <typename Event, typename FSM>
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void on_entry(Event const&, FSM& ) { }
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template <typename Event, typename FSM>
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void on_exit(Event const&, FSM&) { }
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};
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struct On : public msm::front::state<>
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{
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template <typename Event, typename FSM>
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void on_entry(Event const&, FSM& ) { }
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template <typename Event, typename FSM>
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void on_exit(Event const&, FSM&) { }
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};
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// the initial state of the player SM. Must be defined
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typedef Off initial_state;
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void turn_on(ev_toggle const&) { bulp_->current = 11; }
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void turn_off(ev_toggle const&) { bulp_->current = 9; }
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typedef bistable_switch_ bs_; // makes transition table cleaner
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// Transition table for player
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struct transition_table : mpl::vector<
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// Start Event Next Action Guard
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// +---------+-------------+---------+---------------------+----------------------+
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a_row < Off , ev_toggle , On , &bs_::turn_on >,
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a_row < On , ev_toggle , Off , &bs_::turn_off >
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// +---------+-------------+---------+---------------------+----------------------+
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> {};
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// Replaces the default no-transition response.
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template <typename Event, typename FSM>
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void no_transition(Event const&, FSM&, int)
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{
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BOOST_FAIL("no_transition called!");
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}
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};
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// Pick a back-end
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typedef get_test_machines<bistable_switch_> bistable_switches;
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BOOST_AUTO_TEST_CASE_TEMPLATE(test_constructor_movable_only_types, bistable_switch, bistable_switches)
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{
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auto bulp = boost::make_unique<Lightbulp>(3);
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bistable_switch bs(std::move(bulp), 5);
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BOOST_CHECK_MESSAGE(bs.bulp_->current == 10, "Wrong returned current value");
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bs.start();
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bs.process_event(ev_toggle());
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BOOST_CHECK_MESSAGE(bs.bulp_->current == 11, "Wrong returned current value");
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bs.process_event(ev_toggle());
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BOOST_CHECK_MESSAGE(bs.bulp_->current == 9, "Wrong returned current value");
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bs.stop();
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}
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}
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