/// <summary>
/// Generate the PaySlip for a customer to be outputted
/// </summary>
/// <param name="processCust"></param>
/// <param name="frequency"></param>
/// <returns>PaySlipVm</returns>
public PaySlipVm GenerateSalarySlip(Customer processCust, TimeFrequency frequency)
{
if (processCust.PayPeriod != null)
{
//Gross Income
var grossIncome = processCust.PayPeriod.Package.AnnualGrossSalary / Convert.ToDecimal(frequency);
//Income Tax
decimal? incomeTax = _taxService.IncomeTaxCalculation(processCust.PayPeriod.Month, processCust.PayPeriod.Package.AnnualGrossSalary,
frequency);
if (!incomeTax.HasValue) return null;
//Net Income
var netIncome = grossIncome - incomeTax;
//SuperAnnuation Rate
var superRate = processCust.PayPeriod.Package.SuperAnnuationRate;
var superAnnuation = grossIncome * superRate;
// Generate PaySlipVm for the view
return new PaySlipVm
{
GrossSalary = "" + grossIncome.RoundToNearestWhole(),
CustomerFullName = processCust.GetFullName(),
IncomeTax = "" + incomeTax.Value.RoundToNearestWhole(),
NetIncome = "" + netIncome.Value.RoundToNearestWhole(),
Period = processCust.PayPeriod.GetPayPeriodWithHypen(),
SuperAnnuation = "" + superAnnuation.RoundToNearestWhole()
};
}
return null;
}
private TimeEntry CreateTimeEntry(DateTime fromDate, DateTime throughDate, TimeFrequency frequency, WorkEffort workEffort, RateType rateType) => new TimeEntryBuilder(this.Session) .WithRateType(rateType) .WithFromDate(fromDate) .WithThroughDate(throughDate) .WithTimeFrequency(frequency) .WithWorkEffort(workEffort) .Build();
/// <summary>
/// Calculates the income tax on the income based on date and frequency
/// </summary>
/// <param name="date"></param>
/// <param name="income"></param>
/// <param name="timeFrequency"></param>
/// <returns>decimal?</returns>
public decimal? IncomeTaxCalculation(DateTime date, decimal income, TimeFrequency timeFrequency)
{
var taxBracket = AllocatedTaxRate(date, income);
if (taxBracket != null)
{
return (taxBracket.BaseTax + (income - taxBracket.MinSalaryValue.RoundValueToNearest100()) * taxBracket.BaseRate) / Convert.ToDecimal(timeFrequency);
}
return null;
}
public static TimeEntry CreateTimeEntry(this WorkEffort @this, DateTime fromDate, DateTime throughDate, TimeFrequency frequency, RateType rateType) => new TimeEntryBuilder(@this.Session()) .WithRateType(rateType) .WithFromDate(fromDate) .WithThroughDate(throughDate) .WithTimeFrequency(frequency) .WithWorkEffort(@this) .Build();
void TaxServices_Calculate_Tax(decimal income, TimeFrequency timeFrequency, int year, int month, int day,
[Frozen] Mock<IRateDatasSource> taxRates, TaxCalculationService sut)
{
// Assign
DateTime date = (new DateTime(year, month, day));
taxRates.Setup(x => x.GetRates(date)).Returns(TestStubs.TaxBrackets());
decimal expected = 921.9375m;
//Act
var actual = sut.IncomeTaxCalculation(date, income, timeFrequency);
// Assert getRates is called.
taxRates.Verify(x => x.GetRates(It.IsAny<DateTime>()), Times.Once());
// Assert tax to verify it works
Assert.Equal(expected, actual);
}
void SalarySlipService_GenerateSalarySlip(TimeFrequency frequency, [Frozen] Mock<ITaxService> taxService, MonthlySalarySlipService sut)
{
// Assign
Customer cust = TestStubs.GetCustomer();
PaySlipVm expected = TestStubs.GetPaySlipVm(cust.GetFullName(), cust.PayPeriod.GetPayPeriodWithHypen());
taxService.Setup(x => x.IncomeTaxCalculation(cust.PayPeriod.Month, cust.PayPeriod.Package.AnnualGrossSalary, frequency)).Returns(Convert.ToDecimal(expected.IncomeTax));
// Act
PaySlipVm actual = sut.GenerateSalarySlip(cust, frequency);
CompareLogic compareLogic = new CompareLogic();
ComparisonResult result = compareLogic.Compare(expected, actual);
// Assert income tax calculation is called.
taxService.Verify(x => x.IncomeTaxCalculation(It.IsAny<DateTime>(), It.IsAny<Decimal>(), It.IsAny<TimeFrequency>()), Times.Once());
//Assertions for Objects
Assert.True(result.AreEqual);
}