public void WhenDiscountIsAvailableAndApplicable_DiscountApplied()
{
//Arrange
var amount = 100;
var discount = 0.1;
var companyName = "COMPANYWITHDISCOUNT";
Transaction transaction = new Transaction()
{
Date = DateTime.Now,
MerchantName = companyName,
Amount = amount
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(
new List <IFeeRule>()
{
new FeeRuleWithDiscount(new FeeRule((x, y) => x.Amount * BaseFeePercentage),
new List <IDiscountRule>()
{
new MerchantDiscountRule(companyName, discount),
}
)
}
);
var fee = transactionFeeCalculator.CalculateFee(transaction);
//Assert
Assert.Equal((amount * BaseFeePercentage) * (1 - discount), fee.Amount);
}
public void WhenDiscountBiggerThenAmount_FeeIsZero()
{
//Arrange
var amount = 100;
Transaction transaction = new Transaction()
{
Amount = amount
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(
new List <IFeeRule>()
{
new FeeRuleWithDiscount(new FeeRule((x, y) => x.Amount * BaseFeePercentage),
new List <IDiscountRule>()
{
new DiscountRule(x => 1000),
}
)
}
);
var fee = transactionFeeCalculator.CalculateFee(transaction);
//Assert
Assert.Equal(0, fee.Amount);
}
public void TestCalculateTotalTransactionFeeShouldReturnCorrectValue()
{
var calculator = TransactionFeeCalculator.Instance();
var transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 2, 1), MerchantName = "SEVEN-S", TransactionAmount = 0
};
var result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(0.00m);
transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 3, 1), MerchantName = "SEVEN-S", TransactionAmount = 200
};
result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(31.00m);
transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 3, 1), MerchantName = "SEVEN-S", TransactionAmount = 200
};
result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(2.00m);
}
public void TestCalculateTotalTransactionFeeShouldReturnCorrectValue()
{
var calculator = TransactionFeeCalculator.Instance <TransactionFeeCalculatorCircleK>();
var transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 5, 1), MerchantName = "Circle_K", TransactionAmount = 0
};
var result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(0.00m);
transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 10, 1), MerchantName = "Circle_K", TransactionAmount = 200
};
result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(30.60m);
transactionObject = new TransactionObject()
{
TransactionDate = new DateTime(2018, 10, 1), MerchantName = "Circle_K", TransactionAmount = 200
};
result = calculator.CalculateTotalTransactionFee(transactionObject);
result.ShouldBe(1.60m);
}
public void WhenNoFeeRule_FeeIsZero()
{
//Arrange
Transaction transaction = new Transaction()
{
Date = DateTime.Now,
MerchantName = "",
Amount = 20
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(new List <IFeeRule>());
var fee = transactionFeeCalculator.CalculateFee(transaction);
//Assert
Assert.Equal(0, fee.Amount);
}
public void MonthlyFeesAreAppliedCorrectly()
{
//Arrange
Transaction transaction1 = new Transaction()
{
MerchantName = "NAME",
Amount = 100,
Date = new DateTime(2019, 1, 10)
};
Transaction transaction2 = new Transaction()
{
MerchantName = "NAME",
Amount = 100,
Date = new DateTime(2019, 1, 20)
};
Transaction transaction3 = new Transaction()
{
MerchantName = "NAME",
Amount = 100,
Date = new DateTime(2019, 2, 20)
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(
new List <IFeeRule>()
{
new FeeRule((x, y) => x.Amount * BaseFeePercentage),
new MonthlyInvoiceFeeRule()
}
);
var baseFee = 100 * BaseFeePercentage;
var fee1 = transactionFeeCalculator.CalculateFee(transaction1);
var fee2 = transactionFeeCalculator.CalculateFee(transaction2);
var fee3 = transactionFeeCalculator.CalculateFee(transaction3);
//Assert
//var baseFeePercentage = 100 *
Assert.Equal(29 + baseFee, fee1.Amount);
Assert.Equal(0 + baseFee, fee2.Amount);
Assert.Equal(29 + baseFee, fee3.Amount);
}
public void WhenFeeIsZero_MonthlyFeesNotApplied()
{
//Arrange
Transaction transaction1 = new Transaction()
{
MerchantName = "NAME",
Amount = 100,
Date = new DateTime(2019, 1, 10)
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(
new List <IFeeRule>()
{
new MonthlyInvoiceFeeRule()
}
);
var fee1 = transactionFeeCalculator.CalculateFee(transaction1);
//Assert
Assert.Equal(0, fee1.Amount);
}
public void WhenOnePercentFeeRule_FeeIsOnePercent()
{
//Arrange
var amount = 100;
Transaction transaction = new Transaction()
{
Date = DateTime.Now,
MerchantName = "",
Amount = amount
};
//Act
var transactionFeeCalculator = new TransactionFeeCalculator(
new List <IFeeRule>()
{
new FeeRule((x, y) => x.Amount * BaseFeePercentage),
}
);
var fee = transactionFeeCalculator.CalculateFee(transaction);
//Assert
Assert.Equal(amount * BaseFeePercentage, fee.Amount);
}
public TransactionFeeCalculatorService()
{
_feeCalculator = new TransactionFeeCalculator(_feeCalculators);
}
public new static bool MerchantHasTransactionsForMonth(TransactionObject transactionObject)
{
return(TransactionFeeCalculator.MerchantHasTransactionsForMonth(transactionObject));
}
