public static void Seed(this DataContext dataContext)
{
_dataContext = dataContext;
if (!_dataContext.PostalCodeCalculationTypeMap.Any())
{
_dataContext.PostalCodeCalculationTypeMap.AddRange(SeedValues.GetPostalCodeCalculationTypeMap());
}
if (!_dataContext.FlatRate.Any())
{
_dataContext.FlatRate.AddRange(SeedValues.GetFlatRatesSeedValues());
}
if (!_dataContext.FlatValue.Any())
{
_dataContext.FlatValue.AddRange(SeedValues.GetFlatValueRatesSeedValues());
}
if (!_dataContext.ProgressiveRate.Any())
{
_dataContext.ProgressiveRate.AddRange(SeedValues.GetProgressiveRateSeedValues());
}
_dataContext.SaveChanges();
}
public async Task CalculateFlatRateTaxRate_WhenValidRequest_ShouldCalculateCorrectly(decimal annualIncome, decimal expectedTaxRate)
{
// Arrange
var db = Db();
db.FlatRate.AddRange(SeedValues.GetFlatRatesSeedValues());
db.SaveChanges();
var taxCalculator = new FlatRateTaxCalculator(new TaxQueryService(db));
// Act
var taxAmount = await taxCalculator.CalculateTaxAmountAsync(annualIncome);
// Assert
taxAmount.ShouldBe(expectedTaxRate);
}
public async Task GetTaxCalculationType_WhenValidPostalCode_ShouldReturnCorrectCalculationType(string postalCode, TaxType expectedTaxType)
{
// Arrange
var db = Db();
db.PostalCodeCalculationTypeMap.AddRange(SeedValues.GetPostalCodeCalculationTypeMap());
db.SaveChanges();
var queryService = new TaxQueryService(db);
// Act
var taxCalcType = await queryService.GetTaxCalculationTypeByPostalCodeAsync(postalCode);
// Assert
taxCalcType.ShouldBe(expectedTaxType);
}
