/** if a state defines a entry action then the execution state must have a entryAction. */
@Test
public void testStateEntryAction() {
Statechart sc = _createStatechart("test");
Scope scope = _createInterfaceScope("interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, scope);
Region r = _createRegion("main", sc);
Entry e = _createEntry(EntryKind.INITIAL, null, r);
State s1 = _createState("s1", r);
State s2 = _createState("s2", r);
_createTransition(e, s1);
_createTransition(s1, s2);
LocalReaction entryAction = _createEntryAction(s2);
_createVariableAssignment(
v1, AssignmentOperator.ASSIGN, _createValue(42), (ReactionEffect) entryAction.getEffect());
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s1 = flow.getStates().get(0);
ExecutionState _s2 = flow.getStates().get(1);
assertEquals(s1.getName(), _s1.getSimpleName());
assertEquals(s2.getName(), _s2.getSimpleName());
assertNotNull(_s2.getEntryAction());
assertNull(_s1.getEntryAction());
}
/** Local reactions must be created for behavior with 'always' trigger */
@Test
public void testAlwaysLocalReaction() {
Statechart sc = _createStatechart("test");
Scope scope = _createInterfaceScope("interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, scope);
Region r = _createRegion("main", sc);
State s = _createState("s", r);
LocalReaction timeTriggeredReaction =
_createLocalReaction(s, StextFactory.eINSTANCE.createAlwaysEvent());
AssignmentExpression assign =
_createVariableAssignment(
v1,
AssignmentOperator.ASSIGN,
_createValue(42),
(ReactionEffect) timeTriggeredReaction.getEffect());
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s = flow.getStates().get(0);
// assert that a local reaction is created
Reaction reaction = _s.getReactions().get(0);
PrimitiveValueExpression pve = (PrimitiveValueExpression) reaction.getCheck().getCondition();
assertBoolLiteral(true, pve.getValue());
}
/**
* If a entry trigger is combined with a guard condition then the entry action is executed
* conditionally with this trigger.
*/
@Test
public void testExitActionWithoutGuard() {
Statechart sc = _createStatechart("test");
Scope scope = _createInterfaceScope("interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, scope);
Region r = _createRegion("main", sc);
Entry e = _createEntry(EntryKind.INITIAL, null, r);
State s1 = _createState("s1", r);
State s2 = _createState("s2", r);
_createTransition(e, s1);
_createTransition(s1, s2);
LocalReaction exitAction = _createExitAction(s2);
_createVariableAssignment(
v1, AssignmentOperator.ASSIGN, _createValue(42), (ReactionEffect) exitAction.getEffect());
// ((ReactionTrigger)entryAction.getTrigger()).setGuardExpression(_createValue(true));
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s1 = flow.getStates().get(0);
ExecutionState _s2 = flow.getStates().get(1);
assertEquals(s1.getName(), _s1.getSimpleName());
assertEquals(s2.getName(), _s2.getSimpleName());
Sequence _exitSeq = (Sequence) _s2.getExitAction();
assertClass(Sequence.class, _exitSeq.getSteps().get(0));
assertAssignment(
((Sequence) _exitSeq.getSteps().get(0)).getSteps().get(0),
"v1",
AssignmentOperator.ASSIGN,
"42");
}
/** The exit action must be part of the reaction effect sequence */
@SuppressWarnings("unused")
@Test
public void testStateReaction_WithEntryAction() {
SimpleFlatTSC tsc = new SimpleFlatTSC();
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, tsc.s_scope);
LocalReaction entryAction = _createEntryAction(tsc.s2);
AssignmentExpression assign =
_createVariableAssignment(
v1,
AssignmentOperator.ASSIGN,
_createValue(21),
(ReactionEffect) entryAction.getEffect());
ExecutionFlow flow = sequencer.transform(tsc.sc);
// test state with one outgoing transition
ExecutionState _s1 = flow.getStates().get(0);
ExecutionState _s2 = flow.getStates().get(1);
assertEquals(tsc.s1.getName(), _s1.getSimpleName());
assertEquals(tsc.s2.getName(), _s2.getSimpleName());
assertEquals(1, _s1.getReactions().size());
Reaction reaction = _s1.getReactions().get(0);
assertNotNull(reaction.getCheck());
assertNotNull(reaction.getEffect());
Sequence seq = (Sequence) reaction.getEffect();
assertEquals(2, seq.getSteps().size());
assertCall(seq, 0, _s1.getExitSequence());
assertCall(seq, 1, _s2.getEnterSequences().get(0));
assertCall(_s2.getEnterSequences().get(0), 0, _s2.getEntryAction());
}
/**
* A leaf state must have a enter sequence. This enter sequence consists of an entry action call
* and a state enter step.
*/
@SuppressWarnings("unused")
@Test
public void testLeafStateEnterSequence() {
Statechart sc = _createStatechart("cs");
Scope scope = _createInterfaceScope("interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, scope);
Region r = _createRegion("r", sc);
State s1 = _createState("s1", r);
LocalReaction entryAction = _createEntryAction(s1);
_createVariableAssignment(
v1, AssignmentOperator.ASSIGN, _createValue(42), (ReactionEffect) entryAction.getEffect());
Entry e = _createEntry(EntryKind.INITIAL, null, r);
Transition t = _createTransition(e, s1);
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s1 = flow.getStates().get(0);
assertEquals(s1.getName(), _s1.getSimpleName());
assertNotNull(_s1.getEntryAction());
assertNotNull(_s1.getEnterSequences().get(0));
assertEquals(2, _s1.getEnterSequences().get(0).getSteps().size());
assertCall(_s1.getEnterSequences().get(0), 0, _s1.getEntryAction());
assertClass(EnterState.class, _s1.getEnterSequences().get(0).getSteps().get(1));
}
@Check(CheckType.FAST)
public void checkLocalReaction(LocalReaction localReaction) {
if (localReaction.eContainer() instanceof InterfaceScope) {
error(
"Local reactions are not allowed in interface scope.",
localReaction,
StextPackage.Literals.LOCAL_REACTION__PROPERTIES,
ValidationMessageAcceptor.INSIGNIFICANT_INDEX);
}
}
@Test
public void testSingleLocalTimeTrigger() {
Statechart sc = _createStatechart("test");
Scope scope = _createInterfaceScope("interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, scope);
Region r = _createRegion("main", sc);
State s = _createState("s", r);
LocalReaction timeTriggeredReaction =
_createTimeTriggeredReaction(s, TimeEventType.AFTER, _createValue(2), TimeUnit.MILLISECOND);
AssignmentExpression assign =
_createVariableAssignment(
v1,
AssignmentOperator.ASSIGN,
_createValue(42),
(ReactionEffect) timeTriggeredReaction.getEffect());
ExecutionFlow flow = sequencer.transform(sc);
Scope timerScope = flow.getScopes().get(1);
assertTrue(timerScope.getDeclarations().get(0) instanceof TimeEvent);
TimeEvent te = (TimeEvent) timerScope.getDeclarations().get(0);
// assert that the reaction check checks the time event
ExecutionState _s = flow.getStates().get(0);
// assert the scheduling of the time event during state entry
assertNotNull(_s.getEntryAction());
Sequence entryAction = (Sequence) _s.getEntryAction();
ScheduleTimeEvent ste = (ScheduleTimeEvent) entryAction.getSteps().get(0);
assertSame(te, ste.getTimeEvent());
PrimitiveValueExpression value = (PrimitiveValueExpression) ste.getTimeValue();
assertIntLiteral(2, value.getValue());
assertNotNull(_s.getExitAction());
Sequence exitAction = (Sequence) _s.getExitAction();
UnscheduleTimeEvent ute = (UnscheduleTimeEvent) exitAction.getSteps().get(0);
assertSame(te, ute.getTimeEvent());
}
/**
* Local reactions that define regular and entry triggers side by side must also be part of the
* cycle steps.
*/
@SuppressWarnings("unused")
@Test
public void testStateCycle_LocalReactionWithMixedRegularAndEntryTrigger() {
MinimalTSC tsc = new MinimalTSC();
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, tsc.s_scope);
// add a simple entry action: "entry / x=42;"
LocalReaction lr = _createEntryAction(tsc.s1);
_createRegularEventSpec(tsc.e1, (ReactionTrigger) lr.getTrigger());
ReactionEffect lr_eff = _createReactionEffect(lr);
AssignmentExpression assign1 =
_createVariableAssignment(v1, AssignmentOperator.ASSIGN, _createValue(42), lr_eff);
// TRANSFORM
ExecutionFlow flow = sequencer.transform(tsc.sc);
// test state with one outgoing transition
ExecutionState s1 = flow.getStates().get(0);
assertEquals(1, s1.getReactions().size());
assertNotNull(s1.getReactSequence());
assertEquals(1, s1.getReactSequence().getSteps().size());
Sequence _seq = (Sequence) s1.getReactSequence().getSteps().get(0);
If _lr1 =
(If)
assertedSequence(assertedSequence(_seq.getSteps().get(0)).getSteps().get(0))
.getSteps()
.get(0);
assertClass(ElementReferenceExpression.class, _lr1.getCheck().getCondition());
assertSame(s1.getReactions().get(0).getCheck().getCondition(), _lr1.getCheck().getCondition());
Call _lr1_eff_call = (Call) _lr1.getThenStep();
assertSame(s1.getReactions().get(0).getEffect(), _lr1_eff_call.getStep());
}
/** The state cycle must contain all reactions of parent states. */
@SuppressWarnings("unused")
@Test
public void testStateCycle_WithParent() {
Statechart sc = _createStatechart("sc");
{
InterfaceScope s_scope = _createInterfaceScope("Interface", sc);
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, s_scope);
EventDefinition e1 = _createEventDefinition("e1", s_scope);
Region r = _createRegion("r", sc);
{
State s1 = _createState("s1", r);
{
// a local reaction: "e1 / x=42;"
LocalReaction lr1 = _createLocalReaction(s1, null);
_createRegularEventSpec(e1, (ReactionTrigger) lr1.getTrigger());
ReactionEffect lr1_eff = _createReactionEffect(lr1);
AssignmentExpression assign1 =
_createVariableAssignment(v1, AssignmentOperator.ASSIGN, _createValue(42), lr1_eff);
Region r_s1 = _createRegion("r", s1);
{
State s3 = _createState("s3", r_s1);
{
_createEntryAssignment(v1, s3, 2);
Region r_s3 = _createRegion("r", s3);
{
State s4 = _createState("s4", r_s3);
_createEntryAssignment(v1, s4, 3);
State s5 = _createState("s5", r_s3);
}
}
}
}
State s2 = _createState("s2", r);
{
Region r_s1 = _createRegion("r", s2);
{
_createState("s6", r_s1);
}
}
}
Transition t_s4_s5 = _createTransition(findState(sc, "s4"), findState(sc, "s5"));
_createReactionTrigger(t_s4_s5);
_createRegularEventSpec(e1, (ReactionTrigger) t_s4_s5.getTrigger());
Transition t_s3_s6 = _createTransition(findState(sc, "s3"), findState(sc, "s6"));
_createReactionTrigger(t_s3_s6);
_createRegularEventSpec(e1, (ReactionTrigger) t_s3_s6.getTrigger());
}
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s1 = flow.getStates().get(0);
assertEquals("sc.r.s1", _s1.getName());
ExecutionState _s3 = flow.getStates().get(1);
assertEquals("sc.r.s1.r.s3", _s3.getName());
ExecutionState _s4 = flow.getStates().get(2);
assertEquals("sc.r.s1.r.s3.r.s4", _s4.getName());
ExecutionState _s6 = flow.getStates().get(5);
assertEquals("sc.r.s2.r.s6", _s6.getName());
Sequence cycle = _s4.getReactSequence();
Sequence _seq = (Sequence) cycle.getSteps().get(0);
// first entry is the s1 local reaction
List<Step> steps = SCTTestUtil.flattenSequenceStepsAsList(_seq);
If _if = (If) steps.get(0);
assertCall(_if.getThenStep(), _s1.getReactions().get(0).getEffect());
// second entry is the s3 cycle with the transition reaction
_if = (If) steps.get(1);
assertCall(_if.getThenStep(), _s3.getReactions().get(0).getEffect());
assertTrue(_s3.getReactions().get(0).isTransition());
// third is the s4 cycle with the transition reaction
_seq = (Sequence) _if.getElseStep();
cycle = (Sequence) _seq.getSteps().get(0);
_if = (If) cycle.getSteps().get(0);
assertCall(_if.getThenStep(), _s4.getReactions().get(0).getEffect());
assertTrue(_s4.getReactions().get(0).isTransition());
assertNull(_if.getElseStep());
assertEquals(1, cycle.getSteps().size());
}
/**
* The cycle sequence of a state that only consists of local reactions includes sequential
* processing of the local reactions.
*/
@SuppressWarnings("unused")
@Test
public void testStateCycle_WithLocalReactionsOnly() {
MinimalTSC tsc = new MinimalTSC();
VariableDefinition v1 = _createVariableDefinition("v1", TYPE_INTEGER, tsc.s_scope);
// the first local reaction conforms to "e1 / x=42;"
LocalReaction lr1 = _createLocalReaction(tsc.s1, null);
_createRegularEventSpec(tsc.e1, (ReactionTrigger) lr1.getTrigger());
ReactionEffect lr1_eff = _createReactionEffect(lr1);
AssignmentExpression assign1 =
_createVariableAssignment(v1, AssignmentOperator.ASSIGN, _createValue(42), lr1_eff);
// the secont local reaction conforms to "e1 [x==42] / x=0;"
LocalReaction lr2 = _createLocalReaction(tsc.s1, null);
_createRegularEventSpec(tsc.e1, (ReactionTrigger) lr2.getTrigger());
LogicalRelationExpression lr2_equals =
ExpressionsFactory.eINSTANCE.createLogicalRelationExpression();
lr2_equals.setOperator(RelationalOperator.EQUALS);
ElementReferenceExpression lr2_varRef =
ExpressionsFactory.eINSTANCE.createElementReferenceExpression();
lr2_varRef.setReference(v1);
PrimitiveValueExpression lr2_value = _createValue(42);
lr2_equals.setLeftOperand(lr2_varRef);
lr2_equals.setRightOperand(lr2_value);
((ReactionTrigger) lr2.getTrigger()).setGuard(createGuardExpression(lr2_equals));
ReactionEffect lr2_eff = _createReactionEffect(lr2);
AssignmentExpression assign2 =
_createVariableAssignment(v1, AssignmentOperator.ASSIGN, _createValue(0), lr2_eff);
// the third local reaction conforms to: "[x==0] / x=1;"
LocalReaction lr3 = _createLocalReaction(tsc.s1, null);
LogicalRelationExpression lr3_equals =
ExpressionsFactory.eINSTANCE.createLogicalRelationExpression();
lr3_equals.setOperator(RelationalOperator.EQUALS);
ElementReferenceExpression lr3_varRef =
ExpressionsFactory.eINSTANCE.createElementReferenceExpression();
lr3_varRef.setReference(v1);
PrimitiveValueExpression lr3_value = _createValue(0);
lr3_equals.setLeftOperand(lr3_varRef);
lr3_equals.setRightOperand(lr3_value);
((ReactionTrigger) lr3.getTrigger()).setGuard(createGuardExpression(lr3_equals));
ReactionEffect lr3_eff = _createReactionEffect(lr3);
AssignmentExpression assign3 =
_createVariableAssignment(v1, AssignmentOperator.ASSIGN, _createValue(1), lr3_eff);
ExecutionFlow flow = sequencer.transform(tsc.sc);
// test state with one outgoing transition
ExecutionState s1 = flow.getStates().get(0);
assertEquals(tsc.s1.getName(), s1.getSimpleName());
assertEquals(3, s1.getReactions().size());
assertNotNull(s1.getReactSequence());
Step step = s1.getReactSequence().getSteps().get(0);
Sequence _seq =
(Sequence) assertedSequence(assertedSequence(step).getSteps().get(0)).getSteps().get(0);
assertEquals(3, _seq.getSteps().size());
// check first local reaction
If _lr1 = (If) _seq.getSteps().get(0);
assertClass(ElementReferenceExpression.class, _lr1.getCheck().getCondition());
assertSame(s1.getReactions().get(0).getCheck().getCondition(), _lr1.getCheck().getCondition());
Call _lr1_eff_call = (Call) _lr1.getThenStep();
assertSame(s1.getReactions().get(0).getEffect(), _lr1_eff_call.getStep());
// check second local reaction
If _lr2 = (If) _seq.getSteps().get(1);
assertClass(LogicalAndExpression.class, _lr2.getCheck().getCondition());
assertSame(s1.getReactions().get(1).getCheck().getCondition(), _lr2.getCheck().getCondition());
Call _lr2_eff_call = (Call) _lr2.getThenStep();
assertSame(s1.getReactions().get(1).getEffect(), _lr2_eff_call.getStep());
// check the third local reaction
If _lr3 = (If) _seq.getSteps().get(2);
assertClass(LogicalRelationExpression.class, _lr3.getCheck().getCondition());
assertSame(s1.getReactions().get(2).getCheck().getCondition(), _lr3.getCheck().getCondition());
Call _lr3_eff_call = (Call) _lr3.getThenStep();
assertSame(s1.getReactions().get(2).getEffect(), _lr3_eff_call.getStep());
}
