def test_getUidl(self):
        mailbox = mail.maildir.StringListMailbox(["foo", "bar"])
        self.assertNotEqual(mailbox.getUidl(0), mailbox.getUidl(1))
L{StringListMailbox.getUidl} returns a unique identifier for the
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/mail/test/test_mail.py/StringListMailboxTests.test_getUidl