def test_order_taxes(self):
order = Order('13 music CD at 14.99')
price = Decimal('14.99')
tax = rounding_rule(price * Decimal('0.1'))
self.assertEqual(tax, order.tax())
self.assertEqual(price + tax, order.taxed_price())
def test_order_free_imported(self):
order = Order('13 imported book at 10.00')
price = Decimal('10.00')
tax = rounding_rule(price * Decimal('0.05'))
self.assertEqual(tax, order.tax())
def test_order_imported_and_taxed(self):
order = Order('1 imported bottle of perfume at 10.00')
price = Decimal('10.00')
tax = rounding_rule(price*Decimal('0.05') + price*Decimal('0.10'))
self.assertEqual(tax, order.tax())
def test_order_free(self):
order = Order('13 book at 14.99')
self.assertEqual(Decimal('0.00'), order.tax())