Esempio n. 1
0
        public void ShouldDispenseMostTenPoundNotes(double amountToWithdraw, double balance)
        {
            var rules = new DenominationPreferenceRules(new List <DenominationType> {
                DenominationType.TenPound
            });
            AtmMoneyStore moneyStore = new AtmMoneyStore();
            IWithdrawal   withdrawal = new WithdrawalByPreferedDenomination(moneyStore, rules);

            Cash cash = withdrawal.Withdraw(amountToWithdraw);

            Assert.Equal(DenominationType.TenPound, cash.CoinOrNotes.SingleOrDefault().Type);
            Assert.Equal(12, cash.CoinOrNotes.FirstOrDefault().Count);
            Assert.Equal(10, cash.CoinOrNotes.FirstOrDefault().Value);
            Assert.Equal(balance, moneyStore.GetBalance());
        }
Esempio n. 2
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        private static void SetupWithdrawalScheme(WithdrawalType type)
        {
            //TODO : this is poor man's injection. For now, since its a basic application we can live without have a container and DI logic
            //to inject the scheme. Open to extension though.

            switch (type)
            {
            case WithdrawalType.PreferredDenominationRules:
                DenominationPreferenceRules rules = new DenominationPreferenceRules(new List <DenominationType> {
                    DenominationType.TwentyPound
                });
                withdrawalScheme = new WithdrawalByPreferedDenomination(moneyStore, rules);
                break;

            case WithdrawalType.LeastNumberOfItems:
                withdrawalScheme = new WithdrawalByLeastNumberOfItems(moneyStore);
                break;

            default: throw new Exception("This schema is not supported yet");
            }
        }
Esempio n. 3
0
        public void ShouldDispenseMostTwentyPoundNotes(double amountToWithdraw, double balance, params object[] denominations)
        {
            var rules = new DenominationPreferenceRules(new List <DenominationType> {
                DenominationType.TwentyPound
            });
            AtmMoneyStore moneyStore = new AtmMoneyStore();
            IWithdrawal   withdrawal = new WithdrawalByPreferedDenomination(moneyStore, rules);

            Cash cash = withdrawal.Withdraw(amountToWithdraw);

            Assert.Equal(denominations.Length / 2, cash.CoinOrNotes.Count);

            for (int i = 0; i < denominations.Length; i++)
            {
                if (i % 2 == 0)
                {
                    var type  = (DenominationType)denominations[i];
                    var count = (int)denominations[i + 1];
                    Assert.Equal(count, cash.CoinOrNotes.Find(c => c.Type == type)?.Count);
                }
            }

            Assert.Equal(balance, moneyStore.GetBalance());
        }