def testUIDL(self):
        p = self.pop3Server
        s = self.pop3Transport

        p.lineReceived("UIDL 1")
        self.assertEquals(s.getvalue(), "+OK 0\r\n")
        s.truncate(0)

        p.lineReceived("UIDL")
        self._flush()
        self.assertEquals(s.getvalue(), "+OK \r\n1 0\r\n.\r\n")
Test the two forms of the UIDL command.  These are just like the two
dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/mail/test/test_pop3.py/CommandMixin.testUIDL