private void CreateTransactionHistoryReport(TransactionInfo tranInfo, CardAccount cardAccount)
{
automatedTellerMachineContext.TransactionsHistories.Add(new TransactionsHistory()
{
Ammount = tranInfo.MoneyToRetrieve,
TransactionDate = DateTime.Now,
CardAccount = cardAccount
});
}
public void TestOnTooShortCardNumberShouldThrowArgumentException()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "SHORT",
CardPIN = "0000",
MoneyToRetrieve = 200
};
automatedTellerMachine.RetrieveMoney(tranInfo);
}
public void TestOnTooLongCardNumberShouldThrowArgumentException()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "CARD-NUMBER-TOO-LONG",
CardPIN = "0000",
MoneyToRetrieve = 200
};
automatedTellerMachine.RetrieveMoney(tranInfo);
}
public void TestOnExistingCardAccountAndInValidAmountOfMoneyToRetrieveShouldThrowArgumentException()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "111-11-111",
CardPIN = "0000",
MoneyToRetrieve = -200
};
automatedTellerMachine.RetrieveMoney(tranInfo);
}
private static void PerformTransaction(TransactionInfo tranInfo)
{
try
{
automatedTellerMachine.RetrieveMoney(tranInfo);
Console.WriteLine("\rSuccessful transaction!");
}
catch (Exception e)
{
Console.WriteLine("\r" + e.Message);
}
}
public void RetrieveMoney(TransactionInfo tranInfo)
{
using (var transaction = automatedTellerMachineContext.Database.BeginTransaction(IsolationLevel.RepeatableRead))
{
try
{
if (!validationController.IsValidCardNumber(tranInfo.CardNumber))
{
throw new ArgumentException("Invalid card number. Current transaction is aborted!");
}
if (!validationController.IsValidCardPin(tranInfo.CardPIN))
{
throw new ArgumentException("Invalid Card PIN Code. Current transaction is aborted!");
}
var cardAccount = automatedTellerMachineContext.CardAccounts
.FirstOrDefault(c => c.CardNumber == tranInfo.CardNumber);
if (cardAccount == null)
{
throw new ArgumentException("There is no Card account with the given Card number. Current transaction is aborted!");
}
if (!validationController.IsPinCodeMatches(tranInfo.CardPIN, cardAccount.CardPIN))
{
throw new ArgumentException("Chosen Card PIN Code does not matches the actual PIN Code of the card account. Current transaction is aborted!");
}
if (!validationController.IsPermittedWithdrawalAmount(tranInfo.MoneyToRetrieve, cardAccount.CardCash))
{
throw new ArgumentException("Invalid withdrawal money amount to retrieve. Current transaction is aborted!");
}
cardAccount.CardCash -= tranInfo.MoneyToRetrieve;
this.CreateTransactionHistoryReport(tranInfo, cardAccount);
transaction.Commit();
automatedTellerMachineContext.SaveChanges();
}
catch (Exception e)
{
transaction.Rollback();
throw e;
}
}
}
public void TestOnExistingCardAccountAndValidAmountOfMoneyToRetrieve()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "111-11-111",
CardPIN = "0000",
MoneyToRetrieve = 200
};
var oldTranHistoryCount = automatedTellerMachineContext.TransactionsHistories.Count();
var oldCardCash = automatedTellerMachine.GetCardAccountCash(tranInfo.CardNumber);
automatedTellerMachine.RetrieveMoney(tranInfo);
var newTranHistoryCount = automatedTellerMachineContext.TransactionsHistories.Count();
var newCardCash = automatedTellerMachine.GetCardAccountCash(tranInfo.CardNumber);
Assert.AreEqual(oldTranHistoryCount + 1, newTranHistoryCount);
Assert.AreEqual(oldCardCash - tranInfo.MoneyToRetrieve, newCardCash);
}
public void TestValidUnknownCardNumberShouldThrowArgumentException()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "111-11-999",
CardPIN = "0000",
MoneyToRetrieve = 200
};
automatedTellerMachine.RetrieveMoney(tranInfo);
}
public void TestOnNullCardPinShouldThrowArgumentException()
{
var tranInfo = new TransactionInfo()
{
CardNumber = "111-11-111",
CardPIN = null,
MoneyToRetrieve = 200
};
automatedTellerMachine.RetrieveMoney(tranInfo);
}
