def test_substitution_error(self):
def substitute(s):
chars = list(s)
chars[2] = identifier.XDIGITS[
(identifier.XDIGITS.index(chars[2]) + 1)
% len(identifier.XDIGITS)]
return ''.join(chars)
cid = identifier.for_collection()
identifier.check(cid)
cid2 = substitute(cid)
with self.assertRaises(identifier.IdentifierException):
identifier.check(cid2)
did = identifier.for_definition(cid)
identifier.check(did)
did2 = substitute(did)
with self.assertRaises(identifier.IdentifierException):
identifier.check(did2)
def test_transposition_error(self):
def transpose(s):
chars = list(s)
for i in range(-3, -(len(s)+1), -1):
if not chars[i] == chars[i+1]:
chars[i], chars[i+1] = chars[i+1], chars[i]
return ''.join(chars)
cid = identifier.for_collection()
identifier.check(cid)
cid2 = transpose(cid)
with self.assertRaises(identifier.IdentifierException):
identifier.check(cid2)
did = identifier.for_definition(cid)
identifier.check(did)
did2 = transpose(did)
with self.assertRaises(identifier.IdentifierException):
identifier.check(did2)
def test_generate_definition_id(self):
cid = identifier.for_collection()
did = identifier.for_definition(cid)
self.assertTrue(did.startswith(cid))
self.assertEqual(len(did), 11)