public void TestServiceTaxCalculation()
{
//In real world applications moq is used.
var taxSummary=new TaxSummary();
var testOutput=new TaxModel[2];
testOutput[0]=new TaxModel
{
DateTime = Convert.ToDateTime(null),
Invoice = 13000,
ServiceTax = 0,
EducationalCess = 0,
ForeignRemittanceTax = 0
};
testOutput[1]=new TaxModel
{
DateTime = Convert.ToDateTime(null),
Invoice = 1500,
ServiceTax = 0,
EducationalCess = 0,
ForeignRemittanceTax = 0
};
var educationCess = new EducationCess();
var result=educationCess.RetrieveResults(testOutput);
foreach (var taxModel in result)
{
Assert.AreEqual(taxModel.ServiceTax,testOutput[0].ServiceTax,"The values are null");
}
}
internal TaxModel[] RetrieveResults(TaxModel[] file,TaxModel[] taxModels)
{
TaxModel[] international=file
.Select(
l =>
new TaxModel()
{
DateTime = l.DateTime,
Invoice = (l.Invoice),
EmpId = null,
Id = (int) 0,
ServiceTax = (int) 0,
EducationalCess = (int) 0,
ForeignRemittanceTax = (l.Invoice*0.05)
})
.ToArray();
TaxModel[] domestic = taxModels.Select(
l =>
new TaxModel()
{
DateTime = l.DateTime,
Invoice = l.Invoice,
EducationalCess = l.EducationalCess,
EmpId = l.EmpId,
ForeignRemittanceTax = l.ForeignRemittanceTax,
Id = l.Id,
ServiceTax = l.ServiceTax
}).ToArray();
TaxModel[] result = international.Concat(domestic).ToArray();
OutputModel[] displayResult =
result.GroupBy(g => new {g.DateTime})
.Select(
group =>
new OutputModel()
{
datetime = group.Key.DateTime,
invoice = group.Sum(i => i.Invoice),
serviceTax = Math.Ceiling(group.Sum(s => s.ServiceTax)),
educationalCess = Math.Ceiling(group.Sum(e => e.EducationalCess)),
foreignRemittanceCess = Math.Ceiling(group.Sum(frt => frt.ForeignRemittanceTax))
})
.ToArray();
return taxSummary.SumArrays(displayResult);
}
public TaxModel[] RetrieveResults(TaxModel[] file)
{
return educationCess
.RetrieveResults(file.Select(l=>new TaxModel(){DateTime = l.DateTime,Invoice = (l.Invoice),EmpId = null,Id = (int)0,ServiceTax = (l.Invoice*0.1),EducationalCess = (int)0,ForeignRemittanceTax = (int)0})
.ToArray());
}
