public void DeleteItemListTest() { _model.DeleteItemList("drink", -1); _model.DeleteItemList("drink", 0); _model.DeleteItemList("addition", -1); _model.DeleteItemList("addition", 0); AddItemTest(); _model.DeleteItemList("drink", 0); Assert.AreEqual(_model.GetDrinkData().Count, 0); _model.DeleteItemList("addition", 0); Assert.AreEqual(_model.GetDrinkAddition().Count, 0); }