def test_multipleSpecialOffserAreMultipleOfSpecialOfferPrice(self):
    self.assertEqual(checkout('AAAAAAAAAA'), (checkout('AAAAA') * 2))
    self.assertEqual(checkout('BBBB'), (checkout('BB') * 2))
def test_multipleSpecialOffserAreMultipleOfSpecialOfferPrice(self):
    self.assertEqual(checkout('AAAAAAAAAA'), (checkout('AAAAA') * 2))
    self.assertEqual(checkout('BBBB'), (checkout('BB') * 2))