public void CanSaveState()
{
var originator = new Originator(15);
var memento = originator.SaveState();
Assert.AreEqual(15, memento.State);
originator = new Originator(256);
originator.SetState(memento);
Assert.AreEqual(15, originator.State);
}
public void PushState(Originator originator)
{
var memento = originator.SaveState();
this.stack.Push(memento);
}