public void NotSetNewMonth_WhenMonthlyFeeIsNotPaid(int year, int month, int day)
{
// Arrange
var sut = new MonthlyFeeCalculator(new BaseTestCalculator());
var date = new DateTime(year, month, day);
var testTransaction = new Transaction(date, "testMerchant", 0)
{
Fee = 0
};
sut.CalculateFee(testTransaction);
var oldDate = sut.GetLastPaidMonth();
var newDate = new DateTime(year, month, day);
var newTestTransaction = new Transaction(newDate, "testMerchant", 0)
{
Fee = 0
};
// Act
sut.CalculateFee(newTestTransaction);
//
var lastPaidMonth = sut.GetLastPaidMonth();
newDate = newDate.AddDays(-newDate.Day + 1);
// Assert
Assert.Equal(newDate, lastPaidMonth);
Assert.Equal(oldDate, lastPaidMonth);
}
public void AddMonthlyFee_IfItWasNotAlreadyPaid(decimal fee)
{
// Arrange
var sut = new MonthlyFeeCalculator(new BaseTestCalculator());
var date = new DateTime(2010, 10, 10);
var testTransaction = new Transaction(date, "testMerchant", 0)
{
Fee = fee
};
var expectedResult = fee + sut.GetMonthlyFeeAmount();
// Act
var result = sut.CalculateFee(testTransaction);
// Assert
Assert.Equal(expectedResult, result);
}
public void ReturnBaseFee_IfMonthlyFeeAlreadyPaid(decimal fee)
{
// Arrange
var sut = new MonthlyFeeCalculator(new BaseTestCalculator());
var date = new DateTime(2010, 10, 10);
var testTransaction = new Transaction(date, "testMerchant", 0)
{
Fee = fee
};
sut.CalculateFee(testTransaction);
// Act
var result = sut.CalculateFee(testTransaction);
// Assert
Assert.Equal(fee, result);
}
