1 | // Copyright 2010 Christophe Henry |
2 | // henry UNDERSCORE christophe AT hotmail DOT com |
3 | // This is an extended version of the state machine available in the boost::mpl library |
4 | // Distributed under the same license as the original. |
5 | // Copyright for the original version: |
6 | // Copyright 2005 David Abrahams and Aleksey Gurtovoy. Distributed |
7 | // under the Boost Software License, Version 1.0. (See accompanying |
8 | // file LICENSE_1_0.txt or copy at |
9 | // http://www.boost.org/LICENSE_1_0.txt) |
10 | |
11 | #include <boost/msm/back/state_machine.hpp> |
12 | #include <boost/msm/front/euml/euml.hpp> |
13 | |
14 | #ifndef BOOST_MSM_NONSTANDALONE_TEST |
15 | #define BOOST_TEST_MODULE MySimpleEumlTest |
16 | #endif |
17 | #include <boost/test/unit_test.hpp> |
18 | |
19 | using namespace std; |
20 | using namespace boost::msm::front::euml; |
21 | namespace msm = boost::msm; |
22 | |
23 | namespace |
24 | { |
25 | // A "complicated" event type that carries some data. |
26 | enum DiskTypeEnum |
27 | { |
28 | DISK_CD=0, |
29 | DISK_DVD=1 |
30 | }; |
31 | // events |
32 | BOOST_MSM_EUML_EVENT(play) |
33 | BOOST_MSM_EUML_EVENT(end_pause) |
34 | BOOST_MSM_EUML_EVENT(stop) |
35 | BOOST_MSM_EUML_EVENT(pause) |
36 | BOOST_MSM_EUML_EVENT(open_close) |
37 | // A "complicated" event type that carries some data. |
38 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(std::string,cd_name) |
39 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(DiskTypeEnum,cd_type) |
40 | BOOST_MSM_EUML_ATTRIBUTES((attributes_ << cd_name << cd_type ), cd_detected_attributes) |
41 | BOOST_MSM_EUML_EVENT_WITH_ATTRIBUTES(cd_detected,cd_detected_attributes) |
42 | |
43 | //states |
44 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,entry_counter) |
45 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,exit_counter) |
46 | |
47 | BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Empty) |
48 | BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Open) |
49 | BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Stopped) |
50 | BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Playing) |
51 | BOOST_MSM_EUML_STATE(( ++state_(entry_counter),++state_(exit_counter),attributes_ << entry_counter << exit_counter),Paused) |
52 | |
53 | //fsm |
54 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,start_playback_counter) |
55 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,can_close_drawer_counter) |
56 | BOOST_MSM_EUML_DECLARE_ATTRIBUTE(unsigned int,test_fct_counter) |
57 | BOOST_MSM_EUML_ACTION(No_Transition) |
58 | { |
59 | template <class FSM,class Event> |
60 | void operator()(Event const&,FSM&,int) |
61 | { |
62 | BOOST_FAIL("no_transition called!" ); |
63 | } |
64 | }; |
65 | BOOST_MSM_EUML_ACTION(good_disk_format) |
66 | { |
67 | template <class FSM,class EVT,class SourceState,class TargetState> |
68 | bool operator()(EVT const& evt,FSM&,SourceState& ,TargetState& ) |
69 | { |
70 | if (evt.get_attribute(cd_type)!=DISK_CD) |
71 | { |
72 | return false; |
73 | } |
74 | return true; |
75 | } |
76 | }; |
77 | BOOST_MSM_EUML_TRANSITION_TABLE(( |
78 | Playing == Stopped + play / (++fsm_(start_playback_counter),++fsm_(test_fct_counter) ), |
79 | Playing == Paused + end_pause , |
80 | // +------------------------------------------------------------------------------+ |
81 | Empty == Open + open_close / ++fsm_(can_close_drawer_counter), |
82 | // +------------------------------------------------------------------------------+ |
83 | Open == Empty + open_close , |
84 | Open == Paused + open_close , |
85 | Open == Stopped + open_close , |
86 | Open == Playing + open_close , |
87 | // +------------------------------------------------------------------------------+ |
88 | Paused == Playing + pause , |
89 | // +------------------------------------------------------------------------------+ |
90 | Stopped == Playing + stop , |
91 | Stopped == Paused + stop , |
92 | Stopped == Empty + cd_detected [good_disk_format || |
93 | (event_(cd_type)==Int_<DISK_CD>())] / process_(play) , |
94 | Stopped == Stopped + stop |
95 | // +------------------------------------------------------------------------------+ |
96 | ),transition_table) |
97 | |
98 | BOOST_MSM_EUML_DECLARE_STATE_MACHINE(( transition_table, //STT |
99 | init_ << Empty, // Init State |
100 | no_action, // Entry |
101 | no_action, // Exit |
102 | attributes_ << start_playback_counter |
103 | << can_close_drawer_counter << test_fct_counter, // Attributes |
104 | configure_ << no_configure_, // configuration |
105 | No_Transition // no_transition handler |
106 | ), |
107 | player_) //fsm name |
108 | |
109 | typedef msm::back::state_machine<player_> player; |
110 | |
111 | // static char const* const state_names[] = { "Stopped", "Paused", "Open", "Empty", "Playing" }; |
112 | |
113 | |
114 | BOOST_AUTO_TEST_CASE(MySimpleEumlTest) |
115 | { |
116 | player p; |
117 | |
118 | p.start(); |
119 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(entry_counter) == 1, |
120 | "Empty entry not called correctly" ); |
121 | |
122 | p.process_event(evt: open_close()); |
123 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 2,"Open should be active" ); //Open |
124 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(exit_counter) == 1, |
125 | "Empty exit not called correctly" ); |
126 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(entry_counter) == 1, |
127 | "Open entry not called correctly" ); |
128 | |
129 | p.process_event(evt: open_close()); |
130 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Empty should be active" ); //Empty |
131 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(exit_counter) == 1, |
132 | "Open exit not called correctly" ); |
133 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(entry_counter) == 2, |
134 | "Empty entry not called correctly" ); |
135 | BOOST_CHECK_MESSAGE(p.get_attribute(can_close_drawer_counter) == 1,"guard not called correctly" ); |
136 | |
137 | p.process_event( |
138 | evt: cd_detected("louie, louie" ,DISK_DVD)); |
139 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 3,"Empty should be active" ); //Empty |
140 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Open)&>().get_attribute(exit_counter) == 1, |
141 | "Open exit not called correctly" ); |
142 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(entry_counter) == 2, |
143 | "Empty entry not called correctly" ); |
144 | |
145 | p.process_event( |
146 | evt: cd_detected("louie, louie" ,DISK_CD)); |
147 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active" ); //Playing |
148 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Empty)&>().get_attribute(exit_counter) == 2, |
149 | "Empty exit not called correctly" ); |
150 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 1, |
151 | "Stopped entry not called correctly" ); |
152 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 1, |
153 | "Stopped exit not called correctly" ); |
154 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Playing)&>().get_attribute(entry_counter) == 1, |
155 | "Playing entry not called correctly" ); |
156 | BOOST_CHECK_MESSAGE(p.get_attribute(start_playback_counter) == 1,"action not called correctly" ); |
157 | BOOST_CHECK_MESSAGE(p.get_attribute(test_fct_counter) == 1,"action not called correctly" ); |
158 | |
159 | p.process_event(evt: pause()); |
160 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 1,"Paused should be active" ); //Paused |
161 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Playing)&>().get_attribute(exit_counter) == 1, |
162 | "Playing exit not called correctly" ); |
163 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(entry_counter) == 1, |
164 | "Paused entry not called correctly" ); |
165 | |
166 | // go back to Playing |
167 | p.process_event(evt: end_pause()); |
168 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 4,"Playing should be active" ); //Playing |
169 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(exit_counter) == 1, |
170 | "Paused exit not called correctly" ); |
171 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Playing)&>().get_attribute(entry_counter) == 2, |
172 | "Playing entry not called correctly" ); |
173 | |
174 | p.process_event(evt: pause()); |
175 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 1,"Paused should be active" ); //Paused |
176 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Playing)&>().get_attribute(exit_counter) == 2, |
177 | "Playing exit not called correctly" ); |
178 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(entry_counter) == 2, |
179 | "Paused entry not called correctly" ); |
180 | |
181 | p.process_event(evt: stop()); |
182 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active" ); //Stopped |
183 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Paused)&>().get_attribute(exit_counter) == 2, |
184 | "Paused exit not called correctly" ); |
185 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 2, |
186 | "Stopped entry not called correctly" ); |
187 | |
188 | p.process_event(evt: stop()); |
189 | BOOST_CHECK_MESSAGE(p.current_state()[0] == 0,"Stopped should be active" ); //Stopped |
190 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(exit_counter) == 2, |
191 | "Stopped exit not called correctly" ); |
192 | BOOST_CHECK_MESSAGE(p.get_state<BOOST_MSM_EUML_STATE_NAME(Stopped)&>().get_attribute(entry_counter) == 3, |
193 | "Stopped entry not called correctly" ); |
194 | } |
195 | } |
196 | |
197 | |