def test_singlechapter_book_verse_ref(self):
        # N/A for multi-chapter book

        # single-chapter book
        self.assertEqual(f('Jude 5'), 'Jude 5')
validates expiration date & card number using util functions
dataset/ETHPy150Open davisd/python-scriptures/scriptures/tests/test_reference_to_string.py/TestReferenceToSting.test_singlechapter_book_verse_ref--crossover with--dataset/ETHPy150Open abunsen/Paython/paython/lib/cc.py/CreditCard.validate