public void AddBatter_calls_state()
        {
            var sharlotkaState = MockRepository.GenerateStub<ICanAddBatter>();
            var sharlotka = new Sharlotka(sharlotkaState);

            sharlotka.AddBatter();

            sharlotkaState.AssertWasCalled(ss => ss.AddBatter(sharlotka));
        }