public void TestMultipleTaxCodeValidationError()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs();
args.Lines = new[]
{
new TransactionLine()
{
TaxRate = 18, TaxCode = "A", LineTotal = 80m
},
new TransactionLine()
{
TaxRate = 12, TaxCode = "A", LineTotal = 300m
},
new TransactionLine()
{
TaxRate = 1, TaxCode = "B", LineTotal = 170m
},
};
TransactionTaxCalculator.TransactionTaxCalculator c = new TransactionTaxCalculator.TransactionTaxCalculator(DefaultStratagy_ExtractTax.Instance);
var res = c.Calculate(args);
Assert.IsFalse(res.Success);
Assert.IsNotNull(res.Exception);
}
public void NegativeAndPositive()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs
{
Lines = new[]
{
new TransactionLine {
TaxRate = 18, TaxCode = "18", LineTotal = -50
},
new TransactionLine {
TaxRate = 10, TaxCode = "10", LineTotal = 99.99m
}
}
};
const decimal expectedTotalTax = 1.46m;
const decimal expectedTotalincludingTax = 49.99m;
const decimal expectedTotalTaxAddTax = 1m;
const decimal expectedTotalincludingTaxAddTaxMethod = 50.99m;
var res = m_calculatorExtractTax.Calculate(args);
var res2 = m_calculatorAddTax.Calculate(args);
Assert.AreEqual(res.TotalPositiveIncludingTax, 99.99m);
Assert.AreEqual(res.TotalPositiveTax, 9.09m);
Assert.AreEqual(res.TotalNegativeIncludingTax, 50m);
Assert.AreEqual(res.TotalNegativeTax, 7.63m);
Assert.AreEqual(res.TotalTax, expectedTotalTax);
Assert.AreEqual(res.TotalTaxWithoutDiscount, expectedTotalTax);
Assert.AreEqual(res.TotalTransactionAfterDiscountWithoutTax, expectedTotalincludingTax - expectedTotalTax);
Assert.AreEqual(res.TotalTransactionBeforeDiscountWithTax, expectedTotalincludingTax);
Assert.AreEqual(res.TotalTransactionAfterDiscountWithTax, expectedTotalincludingTax);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 2);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.Sum(x => x.TotalTax), expectedTotalTax);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.Count(), 2);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.Sum(x => x.TotalTax), expectedTotalTax);
Assert.AreEqual(res2.TotalPositiveIncludingTax, 109.99m);
Assert.AreEqual(res2.TotalPositiveTax, 10);
Assert.AreEqual(res2.TotalNegativeIncludingTax, 59);
Assert.AreEqual(res2.TotalNegativeTax, 9);
Assert.AreEqual(res2.TotalTax, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTaxWithoutDiscount, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTransactionAfterDiscountWithoutTax, expectedTotalincludingTaxAddTaxMethod - expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTransactionBeforeDiscountWithTax, expectedTotalincludingTaxAddTaxMethod);
Assert.AreEqual(res2.TotalTransactionAfterDiscountWithTax, expectedTotalincludingTaxAddTaxMethod);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 2);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.Sum(x => x.TotalTax), expectedTotalTaxAddTax);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.Count(), 2);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.Sum(x => x.TotalTax), expectedTotalTaxAddTax);
}
public void NegativeSimple()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs();
string taxCode = "18";
decimal taxRate = 18;
args.Lines = new[]
{
new TransactionLine {
TaxRate = taxRate, TaxCode = taxCode, LineTotal = -50
}
};
const decimal expectedTotalTax = -7.63m;
const decimal expectedTotalincludingTax = -50m;
const decimal expectedTotalTaxAddTax = -9m;
const decimal expectedTotalincludingTaxAddTaxMethod = -59m;
var res = m_calculatorExtractTax.Calculate(args);
var res2 = m_calculatorAddTax.Calculate(args);
Assert.AreEqual(res.TotalPositiveIncludingTax, 0);
Assert.AreEqual(res.TotalPositiveTax, 0);
Assert.AreEqual(res.TotalNegativeIncludingTax, expectedTotalincludingTax * -1);
Assert.AreEqual(res.TotalNegativeTax, expectedTotalTax * -1);
Assert.AreEqual(res.TotalTax, expectedTotalTax);
Assert.AreEqual(res.TotalTaxWithoutDiscount, expectedTotalTax);
Assert.AreEqual(res.TotalTransactionAfterDiscountWithoutTax, expectedTotalincludingTax - expectedTotalTax);
Assert.AreEqual(res.TotalTransactionBeforeDiscountWithTax, expectedTotalincludingTax);
Assert.AreEqual(res.TotalTransactionAfterDiscountWithTax, expectedTotalincludingTax);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 1);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.First(g => g.TaxCode == taxCode).TotalTax, expectedTotalTax);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.Count(), 1);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == taxRate).TotalTax, expectedTotalTax);
Assert.AreEqual(res2.TotalPositiveIncludingTax, 0);
Assert.AreEqual(res2.TotalPositiveTax, 0);
Assert.AreEqual(res2.TotalNegativeIncludingTax, expectedTotalincludingTaxAddTaxMethod * -1);
Assert.AreEqual(res2.TotalNegativeTax, expectedTotalTaxAddTax * -1);
Assert.AreEqual(res2.TotalTax, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTaxWithoutDiscount, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTransactionAfterDiscountWithoutTax, expectedTotalincludingTaxAddTaxMethod - expectedTotalTaxAddTax);
Assert.AreEqual(res2.TotalTransactionBeforeDiscountWithTax, expectedTotalincludingTaxAddTaxMethod);
Assert.AreEqual(res2.TotalTransactionAfterDiscountWithTax, expectedTotalincludingTaxAddTaxMethod);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 1);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.First(g => g.TaxCode == taxCode).TotalTax, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.Count(), 1);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == taxRate).TotalTax, expectedTotalTaxAddTax);
}
public void TwoTaxCodesOneTaxRateTest()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs
{
Lines = new[]
{
new TransactionLine {
TaxRate = 18, TaxCode = "A", LineTotal = 25, Qty = 1
},
new TransactionLine {
TaxRate = 18, TaxCode = "B", LineTotal = 35, Qty = 1
}
}
};
const decimal expectedTotalTax = 9.15m;
const decimal expectedTotalincludingTax = 60m;
const decimal expectedTotalTaxAddTax = 10.8m;
const decimal expectedTotalincludingTaxAddTaxMethod = 70.8m;
var res = m_calculatorExtractTax.Calculate(args);
var res2 = m_calculatorAddTax.Calculate(args);
Assert.AreEqual(res.TotalPositiveIncludingTax, expectedTotalincludingTax);
Assert.AreEqual(res.TotalTax, expectedTotalTax);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 2);
Assert.AreEqual(res.TaxCodeGroups.TaxGroupedByTaxCode.Sum(x => x.TotalTax), expectedTotalTax);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.Count(), 1);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.Sum(x => x.TotalTax), expectedTotalTax);
Assert.AreEqual(res2.TotalPositiveIncludingTax, expectedTotalincludingTaxAddTaxMethod);
Assert.AreEqual(res2.TotalTax, expectedTotalTaxAddTax);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.Count(), 2);
Assert.AreEqual(res2.TaxCodeGroups.TaxGroupedByTaxCode.Sum(x => x.TotalTax), expectedTotalTaxAddTax);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.Count(), 1);
Assert.AreEqual(res2.TaxRateGroups.TaxGroupedByTaxRate.Sum(x => x.TotalTax), expectedTotalTaxAddTax);
}
public void Complex2()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs
{
Lines = new[]
{
new TransactionLine {
TaxRate = 18, TaxCode = "A", LineTotal = 80m
},
new TransactionLine {
TaxRate = 1, TaxCode = "B", LineTotal = 170m
},
new TransactionLine {
TaxRate = 18, TaxCode = "A", LineTotal = 300m
}
},
GlobalDiscountAmount = 547m
};
var res = m_calculatorExtractTax.Calculate(args);
//Check that the discount did not change because of rounding issues - This could happen since the discount is distributed for all tax groups.
Assert.AreEqual(res.TotalDiscountWithTax, 547m);
}
public void Complex1()
{
TransactionCalculatorArgs args = new TransactionCalculatorArgs
{
Lines = new[]
{
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 1.5m
},
new TransactionLine {
TaxRate = 10, TaxCode = "I", LineTotal = 2m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 2.5m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 2.5m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 3m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 2.5m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 1.5m
},
new TransactionLine {
TaxRate = 1, TaxCode = "B", LineTotal = 1m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 6m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 4m
},
new TransactionLine {
TaxRate = 10, TaxCode = "D", LineTotal = 6m
},
new TransactionLine {
TaxRate = 1, TaxCode = "B", LineTotal = 5m
},
new TransactionLine {
TaxRate = 1, TaxCode = "B", LineTotal = 10m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 158m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 4.5m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 87.9m
},
new TransactionLine {
TaxRate = 0, TaxCode = "A", LineTotal = 0.38m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 3.32m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 0.54m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 2.56m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 1.66m
},
new TransactionLine {
TaxRate = 10, TaxCode = "I", LineTotal = 84.39m
},
new TransactionLine {
TaxRate = 10, TaxCode = "I", LineTotal = 34.03m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 109.9m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 35m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 39.21m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 24.99m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 16.89m
},
new TransactionLine {
TaxRate = 1, TaxCode = "G", LineTotal = 99.97m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 39.39m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 56.99m
},
new TransactionLine {
TaxRate = 10, TaxCode = "I", LineTotal = 32.37m
},
new TransactionLine {
TaxRate = 20, TaxCode = "J", LineTotal = 17.83m
},
new TransactionLine {
TaxRate = 1, TaxCode = "G", LineTotal = 831.98m
},
new TransactionLine {
TaxRate = 1, TaxCode = "G", LineTotal = 284m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 89.9m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 69.99m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 173.21m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 101m
},
new TransactionLine {
TaxRate = 20, TaxCode = "E", LineTotal = 5.5m
},
new TransactionLine {
TaxRate = 20, TaxCode = "E", LineTotal = 24m
},
new TransactionLine {
TaxRate = 25, TaxCode = "F", LineTotal = 6m
},
new TransactionLine {
TaxRate = 20, TaxCode = "E", LineTotal = 3.5m
},
new TransactionLine {
TaxRate = 25, TaxCode = "F", LineTotal = 0.5m
},
new TransactionLine {
TaxRate = 25, TaxCode = "F", LineTotal = 3m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 0.75m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 39m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 4.99m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 1m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 5m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 10m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 20m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 50m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 100m
},
new TransactionLine {
TaxRate = 0, TaxCode = "A", LineTotal = 1.05m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 5.88m
},
new TransactionLine {
TaxRate = 5, TaxCode = "C", LineTotal = 2.46m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 1.07m
},
new TransactionLine {
TaxRate = 5, TaxCode = "H", LineTotal = 0.72m
}
},
GlobalDiscountAmount = 31.82m
};
var res = m_calculatorExtractTax.Calculate(args);
Assert.IsTrue(res.TaxRateGroups.TaxGroupedByTaxRate.Any());
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 0).TotalTax, 0);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 1).TotalTax, 12.06m);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 5).TotalTax, 47.65m);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 10).TotalTax, 16.38m);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 20).TotalTax, 48.46m);
Assert.AreEqual(res.TaxRateGroups.TaxGroupedByTaxRate.First(g => g.TaxRate == 25).TotalTax, 1.88m);
Assert.AreEqual(res.SumLinesWithTax, 2731.82m);
Assert.AreEqual(res.TotalTax, 126.43m);
Assert.AreEqual(res.TotalTransactionAfterDiscountWithTax, 2700);
}
