'L{isIPAddress} should return C{False} for negative decimal values.'

def test_invalidNegative(self):

    self.assertFalse(isIPAddress('-1'))
    self.assertFalse(isIPAddress('1.-2'))
    self.assertFalse(isIPAddress('1.2.-3'))
    self.assertFalse(isIPAddress('1.2.-3.4'))
