/**
* Retrieves the target from an entry. TODO: validation of preconditions for entry targets e.g
* every region needs an entry with appropriate target
*/
public State target(final Entry entry) {
State _xifexpression = null;
EList<Transition> _outgoingTransitions =
entry == null ? (EList<Transition>) null : entry.getOutgoingTransitions();
boolean _notEquals = (!Objects.equal(_outgoingTransitions, null));
if (_notEquals) {
State _xifexpression_1 = null;
EList<Transition> _outgoingTransitions_1 = entry.getOutgoingTransitions();
int _size = _outgoingTransitions_1.size();
boolean _greaterThan = (_size > 0);
if (_greaterThan) {
State _xblockexpression = null;
{
EList<Transition> _outgoingTransitions_2 = entry.getOutgoingTransitions();
Transition _get = _outgoingTransitions_2.get(0);
final Vertex target = _get.getTarget();
State _xifexpression_2 = null;
if ((target instanceof State)) {
_xifexpression_2 = ((State) target);
}
_xblockexpression = (_xifexpression_2);
}
_xifexpression_1 = _xblockexpression;
}
_xifexpression = _xifexpression_1;
}
return _xifexpression;
}
protected void createEntryPoint(Edge edge, Diagram subdiagram) {
Transition transition = (Transition) edge.getElement();
Region entryPointContainer = getEntryPointContainer(transition);
Entry entryPoint = createSemanticEntryPoint(transition);
// re-wire old transition to targeting the selected state
transition.setTarget((State) subdiagram.getElement());
View oldTarget = edge.getTarget();
edge.setTarget(getContextObject());
// create node for entry point
View entryPointContainerView =
helper.getViewForSemanticElement(entryPointContainer, subdiagram);
View entryPointRegionCompartment =
ViewUtil.getChildBySemanticHint(entryPointContainerView, SemanticHints.REGION_COMPARTMENT);
Node entryNode =
ViewService.createNode(
entryPointRegionCompartment, entryPoint, SemanticHints.ENTRY, preferencesHint);
ViewService.createEdge(
entryNode,
oldTarget,
entryPoint.getOutgoingTransitions().get(0),
SemanticHints.TRANSITION,
preferencesHint);
addEntryPointSpec(transition, entryPoint);
}
@Check(CheckType.FAST)
public void disallowTrigger(Entry entry) {
for (Transition transition : entry.getOutgoingTransitions()) {
if (transition.getTrigger() != null) {
error(ISSUE_ENTRY_WITH_TRIGGER, entry, null, -1);
}
}
}
@Check(CheckType.FAST)
public void checkExitPointSpecWithTrigger(Transition t) {
if (!STextValidationModelUtils.getExitPointSpecs(t.getProperties()).isEmpty()
&& t.getTrigger() != null
&& t.getSource() instanceof org.yakindu.sct.model.sgraph.State) {
error(EXITPOINTSPEC_WITH_TRIGGER, t, null, -1);
}
}
protected String getExitPointName(Transition transition) {
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.append("exit_");
stringBuilder.append(transition.getSource().getName());
int index = transition.getSource().getOutgoingTransitions().indexOf(transition);
stringBuilder.append(index);
return stringBuilder.toString();
}
/**
* If a time trigger is defined for a transition then an event must be introduced into the
* execution flow.
*/
@Test
public void testSingleTransitionTimeTrigger() {
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);
Transition t = _createTransition(s, s);
ReactionTrigger tr1 = _createReactionTrigger(t);
_createTimeEventSpec(TimeEventType.AFTER, _createValue(1), TimeUnit.SECOND, tr1);
AssignmentExpression assign =
_createVariableAssignment(
v1, AssignmentOperator.ASSIGN, _createValue(42), (ReactionEffect) t.getEffect());
ExecutionFlow flow = sequencer.transform(sc);
// assert definition of time event
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
assertEquals(1, flow.getStates().size());
ExecutionState _s = flow.getStates().get(0);
assertEquals(s.getName(), _s.getSimpleName());
If _if =
(If)
SCTTestUtil.flattenSequenceStepsAsList(flow.getStates().get(0).getReactSequence())
.get(0);
ElementReferenceExpression _ere = (ElementReferenceExpression) _if.getCheck().getCondition();
assertSame(te, _ere.getReference());
// 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());
NumericalMultiplyDivideExpression multiply =
(NumericalMultiplyDivideExpression) ste.getTimeValue();
assertIntLiteral(1, ((PrimitiveValueExpression) multiply.getLeftOperand()).getValue());
assertIntLiteral(1000, ((PrimitiveValueExpression) multiply.getRightOperand()).getValue());
assertEquals(MultiplicativeOperator.MUL, multiply.getOperator());
// assert the unscheduling of the time events during state exit
assertNotNull(_s.getExitAction());
Sequence exitAction = (Sequence) _s.getExitAction();
UnscheduleTimeEvent ute = (UnscheduleTimeEvent) exitAction.getSteps().get(0);
assertSame(te, ute.getTimeEvent());
}
@Check(CheckType.FAST)
public void checkUnboundEntryPoints(final org.yakindu.sct.model.sgraph.State state) {
if (state.isComposite()) {
final List<Transition>[] transitions =
STextValidationModelUtils.getEntrySpecSortedTransitions(state.getIncomingTransitions());
Map<Region, List<Entry>> regions = null;
// first list contains Transitions without entry spec
if (!transitions[0].isEmpty()) {
regions = STextValidationModelUtils.getRegionsWithoutDefaultEntry(state.getRegions());
if (!regions.isEmpty()) {
for (Transition transition : transitions[0]) {
error(TRANSITION_UNBOUND_DEFAULT_ENTRY_POINT, transition, null, -1);
}
for (Region region : regions.keySet()) {
error(REGION_UNBOUND_DEFAULT_ENTRY_POINT, region, null, -1);
}
}
}
// second list contains Transitions with entry spec
if (!transitions[1].isEmpty()) {
if (regions == null) {
regions = STextValidationModelUtils.getRegionsWithoutDefaultEntry(state.getRegions());
}
for (Transition transition : transitions[1]) {
boolean hasTargetEntry = true;
for (ReactionProperty property : transition.getProperties()) {
if (property instanceof EntryPointSpec) {
EntryPointSpec spec = (EntryPointSpec) property;
String specName = "'" + spec.getEntrypoint() + "'";
for (Region region : regions.keySet()) {
boolean hasEntry = false;
for (Entry entry : regions.get(region)) {
if (entry.getName().equals(spec.getEntrypoint())) {
hasEntry = true;
break;
}
}
if (!hasEntry) {
error(REGION_UNBOUND_NAMED_ENTRY_POINT + specName, region, null, -1);
hasTargetEntry = false;
}
}
if (!hasTargetEntry) {
error(TRANSITION_UNBOUND_NAMED_ENTRY_POINT + specName, transition, null, -1);
}
}
}
}
}
}
}
@Check(CheckType.FAST)
public void checkTransitionPropertySpec(final Transition transition) {
for (ReactionProperty property : transition.getProperties()) {
if (property instanceof EntryPointSpec) {
if (transition.getTarget() instanceof org.yakindu.sct.model.sgraph.State) {
org.yakindu.sct.model.sgraph.State state =
(org.yakindu.sct.model.sgraph.State) transition.getTarget();
if (!state.isComposite()) {
warning(TRANSITION_ENTRY_SPEC_NOT_COMPOSITE, transition, null, -1);
}
}
} else if (property instanceof ExitPointSpec) {
final ExitPointSpec exitPointSpec = (ExitPointSpec) property;
if (transition.getSource() instanceof org.yakindu.sct.model.sgraph.State) {
org.yakindu.sct.model.sgraph.State state =
(org.yakindu.sct.model.sgraph.State) transition.getSource();
if (!state.isComposite()) {
warning(TRANSITION_EXIT_SPEC_NOT_COMPOSITE, transition, null, -1);
} else {
// Validate an exit point is continued on one transition
// only.
for (Transition t : state.getOutgoingTransitions()) {
if (transition != t
&& STextValidationModelUtils.isNamedExitTransition(
t, exitPointSpec.getExitpoint())) {
warning(TRANSITION_EXIT_SPEC_ON_MULTIPLE_SIBLINGS, transition, null, -1);
}
}
// Validate the state has minimally one named exit
// region
boolean hasExit = false;
Iterator<Region> regionIter = state.getRegions().iterator();
while (regionIter.hasNext() && !hasExit) {
Iterator<Exit> exitIter =
STextValidationModelUtils.getExits(regionIter.next().eContents()).iterator();
while (exitIter.hasNext() && !hasExit) {
Exit exit = exitIter.next();
hasExit = exitPointSpec.getExitpoint().equals(exit.getName());
}
}
if (!hasExit) {
error(TRANSITION_NOT_EXISTING_NAMED_EXIT_POINT, transition, null, -1);
}
}
}
}
}
}
@Check
public void checkChoiceWithoutDefaultTransition(final Choice choice) {
boolean found = false;
for (Transition transition : choice.getOutgoingTransitions()) {
Trigger trigger = transition.getTrigger();
if (isDefault(trigger)) {
found = true;
}
}
if (!found)
warning(
CHOICE_ONE_OUTGOING_DEFAULT_TRANSITION,
SGraphPackage.Literals.VERTEX__OUTGOING_TRANSITIONS);
}
@Check
public void orthogonalTransition(Transition transition) {
Vertex source = transition.getSource();
Vertex target = transition.getTarget();
if ((source instanceof Synchronization) || (target instanceof Synchronization))
return; // ... the check does not apply.
EObject commonAncestor = commonAncestor(source, target);
if (commonAncestor instanceof CompositeElement) {
error(ISSUE_TRANSITION_ORTHOGONAL, transition, null, -1);
}
}
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info)
throws ExecutionException {
if (!canExecute()) {
throw new ExecutionException("Invalid arguments in create link command");
}
if (getSource() != null && getTarget() != null) {
Transition transition = SGraphFactory.eINSTANCE.createTransition();
source.getOutgoingTransitions().add(transition);
transition.setSource(source);
transition.setTarget(target);
source.getOutgoingTransitions().add(transition);
target.getIncomingTransitions().add(transition);
((CreateElementRequest) getRequest()).setNewElement(transition);
}
return CommandResult.newOKCommandResult();
}
@Test
public void testTransitionCheckSequenceWithGuard() {
EventDefinition e1 = _createEventDefinition("e1", null);
EventDefinition e2 = _createEventDefinition("e2", null);
ReactionTrigger tr1 = _createReactionTrigger(null);
_createRegularEventSpec(e1, tr1);
_createRegularEventSpec(e2, tr1);
PrimitiveValueExpression exp = _createValue(false);
tr1.setGuard(createGuardExpression(exp));
Transition t = SGraphFactory.eINSTANCE.createTransition();
t.setTrigger(tr1);
Statechart sc = _createStatechart("test");
Region region = _createRegion("r1", sc);
t.setSource(_createState("A", region));
t.setTarget(_createState("B", region));
Reaction reaction = behaviorMapping.mapTransition(t);
// now check the expression structure ...
// the root is an and condition with the trigger check as the first
// (left) part and the guard as the right (second) part.
LogicalAndExpression and = (LogicalAndExpression) reaction.getCheck().getCondition();
LogicalOrExpression triggerCheck = (LogicalOrExpression) and.getLeftOperand();
PrimitiveValueExpression guardCheck = (PrimitiveValueExpression) and.getRightOperand();
assertClass(ElementReferenceExpression.class, triggerCheck.getLeftOperand());
assertClass(ElementReferenceExpression.class, triggerCheck.getRightOperand());
assertEquals(
e1.getName(),
((NamedElement) ((ElementReferenceExpression) triggerCheck.getLeftOperand()).getReference())
.getName());
assertEquals(
e2.getName(),
((NamedElement)
((ElementReferenceExpression) triggerCheck.getRightOperand()).getReference())
.getName());
assertBoolLiteral(false, guardCheck.getValue());
}
@Test
public void testTransitionCheckSequenceWithoutGuard() {
EventDefinition e1 = _createEventDefinition("e1", null);
EventDefinition e2 = _createEventDefinition("e2", null);
ReactionTrigger tr1 = _createReactionTrigger(null);
_createRegularEventSpec(e1, tr1);
_createRegularEventSpec(e2, tr1);
Transition t = SGraphFactory.eINSTANCE.createTransition();
t.setTrigger(tr1);
Statechart sc = _createStatechart("test");
Region region = _createRegion("r1", sc);
t.setSource(_createState("A", region));
t.setTarget(_createState("B", region));
Reaction reaction = behaviorMapping.mapTransition(t);
assertTrue(reaction.getCheck().getCondition() instanceof LogicalOrExpression);
assertClass(
ElementReferenceExpression.class,
((LogicalOrExpression) reaction.getCheck().getCondition()).getLeftOperand());
assertClass(
ElementReferenceExpression.class,
((LogicalOrExpression) reaction.getCheck().getCondition()).getRightOperand());
assertEquals(
e1.getName(),
((NamedElement)
((ElementReferenceExpression)
((LogicalOrExpression) reaction.getCheck().getCondition()).getLeftOperand())
.getReference())
.getName());
assertEquals(
e2.getName(),
((NamedElement)
((ElementReferenceExpression)
((LogicalOrExpression) reaction.getCheck().getCondition())
.getRightOperand())
.getReference())
.getName());
}
/** The enter sequence must be called withnin incoming transitions. */
@SuppressWarnings("unused")
@Test
public void testFinalStateEnterSequenceCall() {
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);
FinalState fs = _createFinalState(r);
Transition t_s1_fs = _createTransition(s1, fs);
_createReactionTrigger(t_s1_fs);
_createRegularEventSpec(e1, (ReactionTrigger) t_s1_fs.getTrigger());
}
}
ExecutionFlow flow = sequencer.transform(sc);
ExecutionState _s1 = flow.getStates().get(0);
assertEquals("sc.r.s1", _s1.getName());
ExecutionState _fs = flow.getStates().get(1);
assertEquals("sc.r._final_", _fs.getName());
assertNull(_fs.getEntryAction());
assertNull(_fs.getExitAction());
// the transition s1 -> fs must includes the fs exit sequence call
Sequence cycle = _s1.getReactSequence();
If _if = (If) SCTTestUtil.flattenSequenceStepsAsList(cycle).get(0);
assertCall(_if.getThenStep(), _s1.getReactions().get(0).getEffect());
Sequence _seq = (Sequence) _s1.getReactions().get(0).getEffect();
assertCall(_seq, 1, _fs.getEnterSequences().get(0));
}
private void addExitPointSpec(Transition transition, Exit exitPoint) {
EList<ReactionProperty> properties = transition.getProperties();
ExitPointSpec exitPointSpec = StextFactory.eINSTANCE.createExitPointSpec();
// A transition can only have one exit point so alter the existing
for (ReactionProperty reactionProperty : properties) {
if (reactionProperty instanceof ExitPointSpec) {
exitPointSpec = (ExitPointSpec) reactionProperty;
}
}
exitPointSpec.setExitpoint(exitPoint.getName());
properties.add(exitPointSpec);
}
protected void createExitPoint(Edge edge, Diagram subdiagram) {
Transition transition = (Transition) edge.getElement();
// create semantic exit point
Region exitPointContainer = getExitPointContainer(transition);
Exit exitPoint = createSemanticExitPoint(transition);
// create node for exit point
View exitPointContainerView = helper.getViewForSemanticElement(exitPointContainer, subdiagram);
View exitPointRegionCompartment =
ViewUtil.getChildBySemanticHint(exitPointContainerView, SemanticHints.REGION_COMPARTMENT);
Node exitNode =
ViewService.createNode(
exitPointRegionCompartment, exitPoint, SemanticHints.EXIT, preferencesHint);
// re-wire existing transition to new exit point
Vertex oldTarget = transition.getTarget();
transition.setTarget(exitPoint);
ViewService.createEdge(
edge.getSource(), exitNode, transition, SemanticHints.TRANSITION, preferencesHint);
// create transition from selected state to former transition target
Transition exitPointTransition = SGraphFactory.eINSTANCE.createTransition();
exitPointTransition.setSource((State) subdiagram.getElement());
exitPointTransition.setTarget(oldTarget);
ViewService.createEdge(
getContextObject(),
edge.getTarget(),
exitPointTransition,
SemanticHints.TRANSITION,
preferencesHint);
addExitPointSpec(exitPointTransition, exitPoint);
}
@Check(CheckType.FAST)
public void transitionsWithNoTrigger(Transition trans) {
if (trans.getSource() instanceof Entry
|| trans.getSource() instanceof Choice
|| trans.getSource() instanceof Synchronization) {
return;
}
if (trans.getSource() instanceof org.yakindu.sct.model.sgraph.State) {
org.yakindu.sct.model.sgraph.State state =
(org.yakindu.sct.model.sgraph.State) trans.getSource();
if (state.isComposite()) {
for (Region r : state.getRegions()) {
for (Vertex v : r.getVertices()) {
if (v instanceof Exit) {
return;
}
}
}
}
}
if (!STextValidationModelUtils.getExitPointSpecs(trans.getProperties()).isEmpty()) {
return;
}
if (trans.getTrigger() == null) {
warning(ISSUE_TRANSITION_WITHOUT_TRIGGER, trans, null, -1);
}
}
@Check
public void orthogonalSynchronizedTransition(Synchronization sync) {
List<Transition> incoming = sync.getIncomingTransitions();
List<List<EObject>> inAncestorsList = new ArrayList<List<EObject>>();
for (Transition trans : incoming) {
inAncestorsList.add(collectAncestors(trans.getSource(), new ArrayList<EObject>()));
}
List<Transition> outgoing = sync.getOutgoingTransitions();
List<List<EObject>> outAncestorsList = new ArrayList<List<EObject>>();
for (Transition trans : outgoing) {
outAncestorsList.add(collectAncestors(trans.getTarget(), new ArrayList<EObject>()));
}
Set<Transition> inOrthogonal = new HashSet<Transition>(incoming);
Set<Transition> outOrthogonal = new HashSet<Transition>(outgoing);
for (int i = 0; i < incoming.size(); i++) {
for (int j = 0; j < outgoing.size(); j++) {
EObject commonAncestor =
findCommonAncestor(inAncestorsList.get(i), outAncestorsList.get(j));
if (commonAncestor instanceof Region) {
inOrthogonal.remove(incoming.get(i));
outOrthogonal.remove(outgoing.get(j));
}
}
}
for (Transition trans : inOrthogonal) {
error(ISSUE_SYNCHRONIZATION_SOURCE_STATES_NOT_WITHIN_SAME_PARENTSTATE, trans, null, -1);
}
for (Transition trans : outOrthogonal) {
error(ISSUE_SYNCHRONIZATION_TARGET_STATES_NOT_WITHIN_SAME_PARENTSTATE, trans, null, -1);
}
}
protected Entry createSemanticEntryPoint(Transition transition) {
Region entryPointTarget = getEntryPointContainer(transition);
String name = getEntryPointName(transition);
Entry entryPoint = null;
Iterator<Vertex> iterator = entryPointTarget.getVertices().iterator();
while (iterator.hasNext()) {
Vertex next = iterator.next();
if (next instanceof Entry) {
Entry current = (Entry) next;
if (name.equals(current.getName())) {
// Do nothing, there already exists an entry point
return current;
}
}
}
entryPoint = SGraphFactory.eINSTANCE.createEntry();
entryPoint.setName(name);
entryPointTarget.getVertices().add(entryPoint);
Transition entryPointTransition = SGraphFactory.eINSTANCE.createTransition();
entryPointTransition.setSource(entryPoint);
entryPointTransition.setTarget(transition.getTarget());
return entryPoint;
}
@Test
public void testTransitionCheckSequenceWithoutTrigger() {
ReactionTrigger tr1 = _createReactionTrigger(null);
PrimitiveValueExpression exp = _createValue(false);
tr1.setGuard(createGuardExpression(exp));
Transition t = SGraphFactory.eINSTANCE.createTransition();
t.setTrigger(tr1);
Statechart sc = _createStatechart("test");
Region region = _createRegion("r1", sc);
t.setSource(_createState("A", region));
t.setTarget(_createState("B", region));
Reaction reaction = behaviorMapping.mapTransition(t);
// now check the expression structure ...
// the root is an and condition with the trigger check as the first
// (left) part and the guard as the right (second) part.
PrimitiveValueExpression guard = (PrimitiveValueExpression) reaction.getCheck().getCondition();
assertBoolLiteral(false, guard.getValue());
}
public static Transition _createTransition(Vertex source, Vertex target) {
Transition t = SGraphFactory.eINSTANCE.createTransition();
t.setSource(source);
t.setTarget(target);
return t;
}
private Region getExitPointContainer(Transition transition) {
// exit point container is the subdiagram's state's region which
// contains the transition source
EObject firstParentRegion = transition.getSource().getParentRegion();
return getOutermostParentRegion(firstParentRegion);
}
private Region getEntryPointContainer(Transition transition) {
// entry point container is the subdiagram's state's region which
// contains the transition target
EObject firstParentRegion = transition.getTarget().getParentRegion();
return getOutermostParentRegion(firstParentRegion);
}
@Check(CheckType.FAST)
public void initialEntryWithTransitionToContainer(Transition t) {
if (t.getSource() instanceof Entry && !isChildOrSibling(t.getSource(), t.getTarget())) {
error(ISSUE_INITIAL_ENTRY_WITH_TRANSITION_TO_CONTAINER, t, null, -1);
}
}
/** 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());
}