public void Do_Should_override_oldest_operation_When_max_capacity()
{
IUnDoManager manager = new UnDoManager(2);
IUnDo operation1 = Substitute.For <IUnDo>();
IUnDo operation2 = Substitute.For <IUnDo>();
IUnDo operation3 = Substitute.For <IUnDo>();
operation1.Description.Returns("un");
operation2.Description.Returns("dos");
operation3.Description.Returns("tres");
manager.Do(operation1);
manager.Do(operation2);
manager.Do(operation3);
Check.That(manager.UndoDescriptions).ContainsExactly("tres", "dos");
manager.Undo();
manager.Undo();
Check.That(manager.RedoDescriptions).ContainsExactly("dos", "tres");
manager.Redo();
manager.Redo();
Check.That(manager.UndoDescriptions).ContainsExactly("tres", "dos");
}
public void Do_Should_no_do_anything_When_both_actions_are_null()
{
IUnDoManager manager = new UnDoManager();
Action doAction = null;
Action undoAction = null;
manager.Do(doAction, undoAction);
Check.That(manager.CanUndo).IsFalse();
}
public void Do_Should_operation_When_max_capacity_is_one()
{
IUnDoManager manager = new UnDoManager(1);
IUnDo operation1 = Substitute.For <IUnDo>();
IUnDo operation2 = Substitute.For <IUnDo>();
operation1.Description.Returns("kikoo");
operation2.Description.Returns("lol");
manager.Do(operation1);
manager.Do(operation2);
Check.That(manager.UndoDescriptions).ContainsExactly("lol");
Check.That(manager.RedoDescriptions).IsEmpty();
manager.Undo();
Check.That(manager.UndoDescriptions).IsEmpty();
Check.That(manager.RedoDescriptions).ContainsExactly("lol");
}
public void IUnDoTransactionDispose_Should_undo_When_not_committed()
{
IUnDoManager manager = new UnDoManager(1);
bool unDone = false;
using (IUnDoTransaction transaction = manager.BeginTransaction())
{
IUnDo undo = Substitute.For <IUnDo>();
undo.When(u => u.Undo()).Do(_ => unDone = true);
manager.Do(undo);
}
Check.That(unDone).IsTrue();
}