def test_add_alphabet(self):
rs = Rstr()
rs.add_alphabet('evens', '02468')
assert re.match('^[02468]{1,10}$', rs.evens())
def setUp(self):
self.rs = Rstr()
def test_alphabet_at_instantiation(self):
rs = Rstr(vowels='AEIOU')
assert re.match('^[AEIOU]{1,10}$', rs.vowels())