public void Return_Only_Auction_Already_To_Open(int openingDateToAdd, int quantityToGet) { var openingDate = DateTime.Now.AddDays(openingDateToAdd); var updateDateOpeningStrategy = _auctionStrategyFactory.Make <UpdateOpeningParameter>(StrategyTypeEnum.UpdateOpeningDate); var parameters = new UpdateOpeningParameter(openingDate); _auction2.Update(updateDateOpeningStrategy, parameters); _sut = new Auctions(_originalListOfAuctions); Assert.Equal(quantityToGet, _sut.ReadyToOpen().Get().Count()); }