public void TestWithdrawMoney()
{
//Arrange
const int amount = 100500;
const decimal balance = 200500;
var operationId = Guid.NewGuid();
var allCash = new Money
{
Amount = 240000,
Notes = new Dictionary <PaperNote, int>
{
{ PaperNote.Twenty, 2000 },
{ PaperNote.Fifty, 4000 }
}
};
var resultCash = new Money
{
Amount = amount,
Notes = new Dictionary <PaperNote, int>
{
{ PaperNote.Fifty, 2010 }
}
};
_cashProcessor.Cash.Returns(allCash);
_cashProcessor.MinDenomination().Returns(PaperNote.Twenty);
_cashProcessor.WithdrawMoney(amount).Returns(resultCash);
_cardProcessor.GetCardBalance().Returns(balance);
_cardProcessor.BlockAmount(amount).Returns(operationId);
//Act
var result = _atMachine.WithdrawMoney(amount);
//Assert
Received.InOrder(() =>
{
_cashProcessor.MinDenomination();
_cardProcessor.GetCardBalance();
_cardProcessor.BlockAmount(Arg.Is(amount));
_cashProcessor.WithdrawMoney(Arg.Is(amount));
_cardProcessor.WithdrawFromBlocked(Arg.Is(operationId));
});
Assert.Equal(resultCash, result);
}
/// <summary>
/// Preliminary checks the possiblity of withdrawal
/// </summary>
/// <param name="amount">Requested amount</param>
private void WithdrawalValidation(int amount)
{
if (amount <= 0)
{
throw new InvalidAmountException();
}
if (amount > _cashProcessor.Cash.Amount)
{
throw new AmountIsTooBigException();
}
var minBankNote = (int)_cashProcessor.MinDenomination();
if (amount % minBankNote != 0)
{
throw new AmountIsNotMultipleException(minBankNote);
}
if (amount > _cardProcessor.GetCardBalance())
{
throw new InsufficientFundsException();
}
}
