public void BasicFunctionality()
{
IEditFactory fact = EditFactory.instance;
Element elem = new Element();
EquivalenceClass equivalenceClass = new EquivalenceClass();
Effect effect = new Effect();
ce.AddEdit(fact.CreateAddEquivalenceClassEdit(elem, equivalenceClass));
elem.AddEquivalenceClass(equivalenceClass);
ce.AddEdit(fact.CreateAddEffectEdit(equivalenceClass, effect));
equivalenceClass.AddEffect(effect);
Assert.IsFalse(ce.CanUndo());
Assert.IsFalse(ce.CanRedo());
//finalize all edits so it can be undoed
ce.EndAllEdits();
Assert.IsTrue(ce.CanUndo());
Assert.IsFalse(ce.CanRedo());
ce.Undo();
Assert.IsFalse(equivalenceClass.Effects.Contains(effect));
Assert.IsFalse(elem.EquivalenceClasses.Contains(equivalenceClass));
ce.Redo();
Assert.IsTrue(equivalenceClass.Effects.Contains(effect));
Assert.IsTrue(elem.EquivalenceClasses.Contains(equivalenceClass));
ce.Die();
Assert.IsFalse(ce.CanUndo());
Assert.IsFalse(ce.CanRedo());
}
public void BasicFunctionalityLimit()
{
//only 3 edits permited
queue.Limit = 3;
CompoundEdit ce = new CompoundEdit();
IEditFactory fact = EditFactory.instance;
Element elem = new Element();
EquivalenceClass equivalenceClass = new EquivalenceClass();
Effect effect = new Effect();
ce.AddEdit(fact.CreateAddEquivalenceClassEdit(elem, equivalenceClass));
elem.AddEquivalenceClass(equivalenceClass);
ce.AddEdit(fact.CreateAddEffectEdit(equivalenceClass, effect));
equivalenceClass.AddEffect(effect);
//a compound edit
queue.AddEdit(ce);
//a simple edit
queue.AddEdit(fact.CreateChangePropertyEdit(effect, "Description", "Test Description"));
effect.Description = "Test Description";
//another edit
queue.AddEdit(fact.CreateRemoveEquivalenceClassEdit(elem, equivalenceClass));
elem.RemoveEquivalenceClass(equivalenceClass);
//the final edit
queue.AddEdit(fact.CreateRemoveEffectEdit(equivalenceClass, effect));
equivalenceClass.RemoveEffect(effect);
Assert.IsTrue(queue.CanUndo());
Assert.IsFalse(queue.CanRedo());
queue.Undo();
Assert.IsTrue(equivalenceClass.Effects.Contains(effect));
Assert.IsFalse(elem.EquivalenceClasses.Contains(equivalenceClass));
Assert.IsTrue(queue.CanUndo());
Assert.IsTrue(queue.CanRedo());
queue.Undo();
Assert.IsTrue(equivalenceClass.Effects.Contains(effect));
Assert.IsTrue(elem.EquivalenceClasses.Contains(equivalenceClass));
Assert.IsTrue(effect.Description.Equals("Test Description"));
Assert.IsTrue(queue.CanUndo());
Assert.IsTrue(queue.CanRedo());
queue.Undo();
Assert.IsTrue(equivalenceClass.Effects.Contains(effect));
Assert.IsTrue(elem.EquivalenceClasses.Contains(equivalenceClass));
Assert.IsTrue(effect.Description == null);
//the firts edit now cannot be undoed
Assert.IsFalse(queue.CanUndo());
Assert.IsTrue(queue.CanRedo());
queue.Redo();
queue.Redo();
queue.Redo();
Assert.IsTrue(queue.CanUndo());
Assert.IsFalse(queue.CanRedo());
Assert.IsTrue(effect.Description.Equals("Test Description"));
Assert.IsFalse(equivalenceClass.Effects.Contains(effect));
}