/**
* A transitive closure test with model manipulations and a test listener. The listener asserts
* the received notifications too.
*/
@Test
public void listenerTest() {
try {
// The observer will assert the tuples received from the transitive closure helper
TestObserver<EObject> observer = new TestObserver<EObject>();
observer.addInsertedTuple(new Tuple<EObject>(aStudent, aStudent));
observer.addInsertedTuple(new Tuple<EObject>(bStudent, bStudent));
observer.addInsertedTuple(new Tuple<EObject>(cStudent, bStudent));
observer.addInsertedTuple(new Tuple<EObject>(aStudent, bStudent));
observer.addDeletedTuple(new Tuple<EObject>(bStudent, bStudent));
observer.addDeletedTuple(new Tuple<EObject>(cStudent, bStudent));
observer.addDeletedTuple(new Tuple<EObject>(aStudent, bStudent));
transitiveClosureHelper.attachObserver(observer);
Command edgeModCommand =
new RecordingCommand(ModelManager.demandCreateTransactionalEditingDomain(notifier)) {
@Override
protected void doExecute() {
aStudent.getFriendsWith().add(aStudent);
aStudent.getFriendsWith().add(bStudent);
aStudent.getFriendsWith().remove(bStudent);
}
};
ModelManager.demandCreateTransactionalEditingDomain(notifier)
.getCommandStack()
.execute(edgeModCommand);
final SchoolClass schoolClass = aStudent.getSchoolClass();
final Student newStudent = SchoolFactory.eINSTANCE.createStudent();
observer.clearTuples();
observer.addInsertedTuple(new Tuple<EObject>(newStudent, aStudent));
observer.addInsertedTuple(new Tuple<EObject>(newStudent, bStudent));
Command nodeModCommand =
new RecordingCommand(ModelManager.demandCreateTransactionalEditingDomain(notifier)) {
@Override
protected void doExecute() {
schoolClass.getStudents().add(newStudent);
newStudent.getFriendsWith().add(bStudent);
}
};
ModelManager.demandCreateTransactionalEditingDomain(notifier)
.getCommandStack()
.execute(nodeModCommand);
transitiveClosureHelper.detachObserver(observer);
} finally {
// Undo the previously executed commands to restore the original state of the model
ModelManager.demandCreateTransactionalEditingDomain(notifier).getCommandStack().undo();
ModelManager.demandCreateTransactionalEditingDomain(notifier).getCommandStack().undo();
}
}
/**
* A transitive closure test with model manipulations. It operates on the friendsWith relation
* between the students.
*/
@Test
public void queryModTest() {
try {
assertTrue(transitiveClosureHelper.getAllReachableSources(aStudent).size() == 2);
assertTrue(transitiveClosureHelper.getAllReachableTargets(aStudent).size() == 0);
Command firstCommand =
new RecordingCommand(ModelManager.demandCreateTransactionalEditingDomain(notifier)) {
@Override
protected void doExecute() {
aStudent.getFriendsWith().add(aStudent);
}
};
ModelManager.demandCreateTransactionalEditingDomain(notifier)
.getCommandStack()
.execute(firstCommand);
assertTrue(
transitiveClosureHelper.getAllReachableSources(aStudent).size() == 3
&& transitiveClosureHelper.getAllReachableSources(aStudent).contains(aStudent));
Command secondCommand =
new RecordingCommand(ModelManager.demandCreateTransactionalEditingDomain(notifier)) {
@Override
protected void doExecute() {
aStudent.getFriendsWith().add(bStudent);
}
};
ModelManager.demandCreateTransactionalEditingDomain(notifier)
.getCommandStack()
.execute(secondCommand);
assertTrue(
transitiveClosureHelper.getAllReachableSources(aStudent).size() == 3
&& transitiveClosureHelper.getAllReachableSources(aStudent).contains(aStudent));
assertTrue(!transitiveClosureHelper.isReachable(bStudent, cStudent));
} finally {
// Undo the previously executed commands to restore the original state of the model
ModelManager.demandCreateTransactionalEditingDomain(notifier).getCommandStack().undo();
ModelManager.demandCreateTransactionalEditingDomain(notifier).getCommandStack().undo();
}
}