Exemple #1
0
        public uint IncomeTax(uint annualIncome)
        {
            TaxBand band  = TaxBands.GetTaxBand(annualIncome);
            double  value = band.VariableTax * (annualIncome - band.TaxableIncomeLB - 1) + band.FlatTax;

            return((uint)Math.Round((double)value / 12, 0, MidpointRounding.AwayFromZero));
        }
        public void GetTax_WhenBothAmountAndLowerBoundAreZero_ReturnZero()
        {
            var taxBand = TaxBand.Create(20, "band1");
            var tax     = taxBand.GetTax(0, 0);

            tax.Should().Be(0);
        }
        public void GetTax_WhenUpperBoundIsNull_ReturnsProductOfRateAndDifferenceOfAmountAndLowerBound()
        {
            var taxBand = TaxBand.Create(20, "band1");
            var tax     = taxBand.GetTax(2000m, 10000m);

            tax.Should().Be((10000m - 2000) * (20 / 100m));
        }
        public void GetTax_WhenLowerBoundLargerThanAmount_ReturnZero(decimal lowerBound, decimal amount)
        {
            var taxBand = TaxBand.Create(20, "band1", 10000);
            var tax     = taxBand.GetTax(lowerBound, amount);

            tax.Should().Be(0);
        }
        public void GetTax_WhenAmountLargerThanUpperBound_ReturnsProductOfRateAndDifferenceOfUpperBoundAndLowerBound()
        {
            var taxBand = TaxBand.Create(20, "band1", 10000);
            var tax     = taxBand.GetTax(2000, 12000);

            tax.Should().Be((10000m - 2000) * (20 / 100m));
        }
        public void GetTax_WhenAmountLessThanOrEqualToUpperBound_ReturnsProductOfRateAndDifferenceOfAmountAndLowerBound(decimal amount)
        {
            var taxBand = TaxBand.Create(20, "band1", 10000);
            var tax     = taxBand.GetTax(2000, amount);

            tax.Should().Be((amount - 2000) * (20 / 100m));
        }
Exemple #7
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        public double TaxFor(double grossSalary)
        {
            var lowerTaxBand  = new TaxBand(5000.0, 0.1, null);
            var middleTaxBand = new TaxBand(20000.0, 0.2, lowerTaxBand);
            var upperTaxBand  = new TaxBand(40000.0, 0.4, middleTaxBand);

            return(upperTaxBand.TaxFor(grossSalary));
        }
        public void CompareTo_Test(decimal?upperBound1, decimal?upperBound2, int expectedResult)
        {
            var taxBand1 = TaxBand.Create(20, "band1", upperBound1);
            var taxBand2 = TaxBand.Create(20, "band2", upperBound2);

            var result = taxBand1.CompareTo(taxBand2);

            result.Should().Be(expectedResult);
        }
Exemple #9
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 private void Init(bool isPostBack)
 {
     InitMessage();
     _IEditTaxBandView.Title = "ÐÞ¸ÄË°½×";
     if (!isPostBack)
     {
         TaxBand taxBand = _ITax.GetTaxBandByTaxBandID(_IEditTaxBandView.TaxBandID);
         _IEditTaxBandView.BandMin = taxBand.BandMin.ToString();
         _IEditTaxBandView.TaxRate = (taxBand.TaxRate * 100).ToString();
     }
 }
Exemple #10
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        public double TaxFor(double grossSalary)
        {
            var upperTaxBand       = new TaxBand(40000.0, 0.4);
            var upperTaxBracketTax = upperTaxBand.TaxInBand(grossSalary);
            var remainingGrossForMiddleAndLowerBrackets = upperTaxBand.GrossToTaxInBandsBelowCurrent(grossSalary);

            var middleTaxBand                 = new TaxBand(20000.0, 0.2);
            var middleTaxBracketTax           = middleTaxBand.TaxInBand(remainingGrossForMiddleAndLowerBrackets);
            var remainingGrossForLowerBracket = middleTaxBand.GrossToTaxInBandsBelowCurrent(remainingGrossForMiddleAndLowerBrackets);

            var lowerTaxBand       = new TaxBand(5000.0, 0.1);
            var lowerTaxBracketTax = lowerTaxBand.TaxInBand(remainingGrossForLowerBracket);

            return(lowerTaxBracketTax + middleTaxBracketTax + upperTaxBracketTax);
        }
Exemple #11
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        public List <TaxBand> GetAllTaxBand()
        {
            List <TaxBand> taxBandList = new List <TaxBand>();
            SqlCommand     cmd         = new SqlCommand();

            using (SqlDataReader sdr = SqlHelper.ExecuteReader("GetAllTaxBand", cmd))
            {
                while (sdr.Read())
                {
                    TaxBand taxBand =
                        new TaxBand(Convert.ToInt32(sdr[_DbPKID]), Convert.ToDecimal(sdr[_DbBandMin]),
                                    Convert.ToDecimal(sdr[_DbTaxRate]));
                    taxBandList.Add(taxBand);
                }
            }
            return(taxBandList);
        }
Exemple #12
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        public TaxBand GetTaxBandByTaxBandID(int taxBandID)
        {
            TaxBand    taxBand = null;
            SqlCommand cmd     = new SqlCommand();

            cmd.Parameters.Add(_PKID, SqlDbType.Int).Value = taxBandID;

            using (SqlDataReader sdr = SqlHelper.ExecuteReader("GetTaxBandByTaxBandID", cmd))
            {
                while (sdr.Read())
                {
                    taxBand =
                        new TaxBand(Convert.ToInt32(sdr[_DbPKID]), Convert.ToDecimal(sdr[_DbBandMin]),
                                    Convert.ToDecimal(sdr[_DbTaxRate]));
                }
            }
            return(taxBand);
        }
Exemple #13
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        public void IntegrationTest_WithMockProvider()
        {
            (var taxBandProviderMock, _, _) = GetMocks();

            var band1 = TaxBand.Create(0, "band1", 12_500m);
            var band2 = TaxBand.Create(20, "band2", 50_000m);
            var band3 = TaxBand.Create(40, "band3", 150_000m);
            var band4 = TaxBand.Create(45, "band4");

            var taxBands = new List <TaxBand>()
            {
                band1, band2, band3, band4
            };

            taxBandProviderMock.Setup(x => x.GetAll()).Returns(taxBands);

            var service = new CalculateTaxService(taxBandProviderMock.Object, new TaxBandHelper());

            (var tax, _) = service.GetTax(52_000m);

            tax.Should().Be(8_300m);
        }
Exemple #14
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 public TaxBand(double minimumGross, double taxRate, TaxBand lowerTaxBand)
 {
     this.minimumGross = minimumGross;
     this.taxRate      = taxRate;
     this.lowerTaxBand = lowerTaxBand;
 }
 private double CalculateTaxInBand(TaxBand taxBand)
 {
     return(MonetaryAmountInBand(taxBand.LowerBand, taxBand.RangeOfBand) * taxBand.Percentage);
 }
        public void GetTax_WhenLowerBoundLessThanZero_ThrowError()
        {
            var taxBand = TaxBand.Create(20, "band1");

            taxBand.Invoking(x => x.GetTax(-1m, 1m)).Should().Throw <InvalidOperationException>();
        }