public void AddFee_WhenAmountIsNotPositiveNumber_ShouldReturnNull()
{
// Arrange
var fee = new Fee("Free", DateTime.Now, 100M);
var feeType = new DiscountedFee(_merchantDiscounts);
// Act
var result = feeType.AddFee(fee);
// Assert
Assert.Null(result);
}
public void AddFee_WhenMerchantIsEligibleDiscount_ShouldApplyDiscount(string merchantName, float expectedAmount)
{
// Arrange
var fee = new Fee(merchantName, DateTime.Now, 1M);
var feeType = new DiscountedFee(_merchantDiscounts);
// Act
var result = feeType.AddFee(fee);
// Assert
Assert.NotNull(result);
Assert.Equal((decimal)expectedAmount, result.Amount);
}
public void AddFee__WhenMerchantIsNotEligibleDiscount_ShouldNotChangeFeeAmount()
{
// Arrange
var expectedAmount = 100M;
var fee = new Fee("XYZ", DateTime.Now, expectedAmount);
var feeType = new DiscountedFee(_merchantDiscounts);
// Act
var result = feeType.AddFee(fee);
// Assert
Assert.NotNull(result);
Assert.Equal(expectedAmount, result.Amount);
}
private static FeeCalculationCommand BuildFeeCalculationCommand(MpConfig config, params object[] dependencies)
{
var defaultFee = new PercentageFee(
config.Fees.PercentageFee,
config.Fees.MinAllowedFeeAmount);
var feeDiscount = new DiscountedFee(
config.Fees.DiscountedFees,
config.Fees.MinAllowedFeeAmount);
var fixedFee = new InvoiceFixedFee(
config.Fees.InvoiceFixedFee,
config.Fees.MinAllowedFeeAmount);
var extraFees = new IExtraFee[] { feeDiscount, fixedFee };
ITransactionRepository transactionRepository =
dependencies
.OfType <ITransactionRepository>()
.FirstOrDefault() ??
new TransactionRepository(
config.Input.TransactionsFilePath,
new FileReader(),
new TransactionParser(
config.Input.Separator,
config.Input.DateFormat));
IFeeCalculationService feeCalculationService =
dependencies
.OfType <IFeeCalculationService>()
.FirstOrDefault() ??
new FeeCalculationService(
new BaseFeeCalculator(defaultFee, new Dictionary <string, ITransactionFee>()),
extraFees,
new Mapper());
IOutputWriter outputWriter =
dependencies
.OfType <IOutputWriter>()
.FirstOrDefault() ??
new OutputWriter(
config.Output.DateFormat,
config.Output.AmountFormat,
config.Output.MerchantNameMinimalWidth);
var command = new FeeCalculationCommand(
transactionRepository,
feeCalculationService,
outputWriter);
return(command);
}
