public void Should_Be_Able_To_Give_Returns() { Amount corpus = new Amount(1000); Amount offer = new Amount(250); Amount dividend = new Amount(50); Investor investor = new Investor(new Name("Dummy"), new GringottsDate(DateTime.Now), corpus); Investment investment = new Investment(investor, null, offer); investment.GiveReturn(dividend); Assert.AreEqual(corpus + dividend, investor.Corpus); }