'Test that the function which formats stat lines does so appropriately.'

def testStatLineFormatter(self):

    statLine = list(pop3.formatStatResponse([]))[(-1)]
    self.assertEqual(statLine, '+OK    0    0\r\n')
    statLine = list(pop3.formatStatResponse([10, 31, 0, 10101]))[(-1)]
    self.assertEqual(statLine, '+OK    4    10142\r\n')
