public void UndoEdit_before_begin_edit() { MockEntity entity = new MockEntity() { IntProperty = 1 }; Should.Throw <ArgumentNullException>(() => entity.UndoEdit()); }
public void UndoEdit() { bool isEventRaised = false; int before = 1; int after = 2; MockEntity entity = new MockEntity() { IntProperty = before }; entity.Undo += (s, e) => { isEventRaised = true; }; entity.BeginEdit(); entity.IntProperty = after; entity.UndoEdit(); Assert.IsTrue(isEventRaised); Assert.AreEqual(before, entity.IntProperty); Assert.IsTrue(entity.IsEditing); }