public void ApplyTransactionPercentageFeeDiscount_FeeNull_ThrowsException()
{
//arrange
var merchant = new Merchant(new Name("STEAM"), new Percentage(10));
//act & assert
Assert.Throws <DomainException>(() => merchant.ApplyTransactionPercentageFeeDiscount(null));
}
public void ApplyTransactionPercentageFeeDiscount_CalculatesFeeCorrectly(double originalFeeAmount,
double discount, double expectedFeeAmount)
{
//arrange
var merchant = new Merchant(new Name("STEAM"), new Percentage(discount));
var originalFee = new Fee(originalFeeAmount);
//act
var fee = merchant.ApplyTransactionPercentageFeeDiscount(originalFee);
//assert
Assert.Equal(expectedFeeAmount, fee.Value);
}
