public void DeleteIngredientWorks()
{
var positionList = new PositionListDataHolder(new PositionRepositoryStub());
positionList.LoadPositionList();
var ingredient = new DTOIngredient(1, 1, new DTOSize(1, "size1", new Money(1), new DTOPosition(1, "1", "1")),
new DTO.Consumable(1, "water", 1));
positionList.DeleteIngredient(ingredient);
var ingredientList = positionList.GetIngredientList(ingredient.Size);
Assert.AreEqual(0, ingredientList.Count);
}