/// <summary>
/// Tries to block provided amount plus withdrawal fee. Operator cards cannot be used for this operation
/// </summary>
/// <param name="cardNumber">Card number</param>
/// <param name="amount">Amount to block</param>
/// <returns>Operation Id</returns>
public Guid BlockAmount(string cardNumber, int amount)
{
if (IsOperatorCard(cardNumber))
{
throw new NotAuthorizedOperatorException();
}
var balanceInfo = GetCardBalanceInfo(cardNumber);
var fee = CalculateWithdrawalFee(amount);
var totalAmount = amount + fee;
if (balanceInfo.EffectiveBalance < totalAmount)
{
throw new InsufficientFundsException();
}
balanceInfo.BlockFunds(totalAmount);
return(_historyManager.AddAtOperation(cardNumber, amount, fee));
}
public void TestBlockAmount()
{
// Arrange
const string cardNumber = "5372100906627713";
const int amount = 33;
const int amount2 = 100;
const int amount3 = 10000;
const decimal fee = 0.33M;
const decimal fee2 = 1M;
const decimal fee3 = 100M;
var operationId = Guid.NewGuid();
var operationId2 = Guid.NewGuid();
var operationId3 = Guid.NewGuid();
_historyManager.AddAtOperation(cardNumber, amount, fee).Returns(operationId);
_historyManager.AddAtOperation(cardNumber, amount2, fee2).Returns(operationId2);
_historyManager.AddAtOperation(cardNumber, amount3, fee3).Returns(operationId3);
var initBalance = _hostProcessorServiceMock.GetCardBalance(cardNumber);
var expectedBalance = initBalance - amount - fee - amount2 - fee2 - amount3 - fee3;
// Act
var result = _hostProcessorServiceMock.BlockAmount(cardNumber, amount);
var result2 = _hostProcessorServiceMock.BlockAmount(cardNumber, amount2);
var result3 = _hostProcessorServiceMock.BlockAmount(cardNumber, amount3);
// Assert
Assert.Equal(operationId, result);
Assert.Equal(operationId2, result2);
Assert.Equal(operationId3, result3);
Received.InOrder(() =>
{
_historyManager.AddAtOperation(Arg.Is(cardNumber), Arg.Is((decimal)amount), Arg.Is(fee));
_historyManager.AddAtOperation(Arg.Is(cardNumber), Arg.Is((decimal)amount2), Arg.Is(fee2));
_historyManager.AddAtOperation(Arg.Is(cardNumber), Arg.Is((decimal)amount3), Arg.Is(fee3));
});
var resultBalance = _hostProcessorServiceMock.GetCardBalance(cardNumber);
Assert.Equal(expectedBalance, resultBalance);
}
