'Test the decoding process of a request'

def test_decode_request(self):

    self.assertIsNone(decode_request(0, struct.pack('!BBBB', 5, 0, 0, 5))[1])
    self.assertRaises(IPV6AddrError, decode_request, 0, struct.pack('!BBBB', 5, 0, 0, 4))
