def test_first_index_in_set(self):
"""first_index_in_set should return index of first occurrence """
vowels = 'aeiou'
s1 = 'ebcua'
s2 = 'bcbae'
s3 = ''
s4 = 'cbd'
self.assertEqual(first_index_in_set(s1, vowels), 0)
self.assertEqual(first_index_in_set(s2, vowels), 3)
self.assertEqual(first_index_in_set(s3, vowels), None)
self.assertEqual(first_index_in_set(s4, vowels), None)
def test_first_index_in_set(self):
"""first_index_in_set should return index of first occurrence """
vowels = 'aeiou'
s1 = 'ebcua'
s2 = 'bcbae'
s3 = ''
s4 = 'cbd'
self.assertEqual(first_index_in_set(s1, vowels), 0)
self.assertEqual(first_index_in_set(s2, vowels), 3)
self.assertEqual(first_index_in_set(s3, vowels), None)
self.assertEqual(first_index_in_set(s4, vowels), None)
def test_first_index_in_set(self):
"""first_index_in_set should return index of first occurrence """
vowels = "aeiou"
s1 = "ebcua"
s2 = "bcbae"
s3 = ""
s4 = "cbd"
self.assertEqual(first_index_in_set(s1, vowels), 0)
self.assertEqual(first_index_in_set(s2, vowels), 3)
self.assertEqual(first_index_in_set(s3, vowels), None)
self.assertEqual(first_index_in_set(s4, vowels), None)
def firstNotInAlphabet(self, sequence, alphabet=None):
"""Returns index of first item not in alphabet, or None.
Defaults to self.Alphabet if alphabet not supplied.
"""
if alphabet is None:
alphabet = self.Alphabet
return first_index_in_set(sequence, alphabet)
def firstNotInAlphabet(self, sequence, alphabet=None):
"""Returns index of first item not in alphabet, or None.
Defaults to self.Alphabet if alphabet not supplied.
"""
if alphabet is None:
alphabet = self.Alphabet
return first_index_in_set(sequence, alphabet)
def isValidOnAlphabet(self, sequence, alphabet=None):
"""Returns True if sequence contains only items in alphabet.
Alphabet can actually be anything that implements __contains__.
Defaults to self.Alphabet if not supplied.
"""
if alphabet is None:
alphabet = self.Alphabet
return first_index_in_set(sequence, alphabet) is not None
def isValidOnAlphabet(self, sequence, alphabet=None):
"""Returns True if sequence contains only items in alphabet.
Alphabet can actually be anything that implements __contains__.
Defaults to self.Alphabet if not supplied.
"""
if alphabet is None:
alphabet = self.Alphabet
return first_index_in_set(sequence, alphabet) is not None