def testSlot(self):
    # pylint: disable=line-too-long
    line = '!SAVDM,1,1,7,B,18158j001ErSVGdE>>1Unlcp0l1n,0*44,d-105,S2235,t000059.00,T59.605270,D05MN-NC-MAMBS1,1428796799'
    self.assertEqual(uscg.USCG_RE.match(line).groupdict()['slot'], '2235')