public PostalCodeTaxResolver(IIncomeValidator incomeValidator)
{
RegisterTaxCalculator("7441", new ProgressiveTaxCalculator(incomeValidator));
RegisterTaxCalculator("A100", new FlatValueTaxCalculator(incomeValidator));
RegisterTaxCalculator("7000", new FlatRateTaxCalculator(incomeValidator));
RegisterTaxCalculator("1000", new ProgressiveTaxCalculator(incomeValidator));
}
public FlatRateTaxCalculator(IIncomeValidator incomeValidator)
{
_incomeValidator = incomeValidator ?? throw new ArgumentNullException(nameof(incomeValidator));
}
