def test_bad_checksum(self, raw):
inst = SCIONUDPHeader()
inst.total_len = 10 + inst.LEN
inst._calc_checksum = create_mock()
inst._calc_checksum.return_value = bytes.fromhex("8888")
inst._checksum = bytes.fromhex("9999")
# Call
ntools.assert_raises(SCIONChecksumFailed, inst.validate, range(10))
def test_bad_length(self, raw):
inst = SCIONUDPHeader()
inst.total_len = 10
# Call
ntools.assert_raises(SCMPBadPktLen, inst.validate, range(9))