public void ShouldThrowInvalidEnumArgumentExceptionWhenTaxableUndefined()
{
FakeShoppingItem fakeItem = CreateFakeItem();
fakeItem.Taxable = Taxable.Undefined;
Assert.Catch(() => _taxCalculator.CalculatePriceWithTax(fakeItem));
}
public void ZeroPrecentTaxShouldReturnPriceWithoutTax()
{
const decimal zero = 0m;
FakeShoppingItem fakeItem = CreateFakeItem();
fakeItem.TaxAmountAsPercent = zero;
decimal result = _taxCalculator.CalculatePriceWithTax(fakeItem);
Assert.AreEqual(result, fakeItem.PriceWithoutTax);
}
public void NoPriceAndATaxAmountShouldReturnZero()
{
const decimal zero = 0m;
FakeShoppingItem fakeItem = CreateFakeItem();
fakeItem.PriceWithoutTax = zero;
decimal result = _taxCalculator.CalculatePriceWithTax(fakeItem);
Assert.AreEqual(result, zero);
}
public void TaxExemptShouldReturnPriceWithoutTax()
{
const decimal ten = 10m;
FakeShoppingItem fakeItem = CreateFakeItem();
fakeItem.Taxable = Taxable.TaxExempt;
fakeItem.PriceWithoutTax = ten;
decimal result = _taxCalculator.CalculatePriceWithTax(fakeItem);
Assert.AreEqual(result, ten);
}
