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"""Packet out message tests."""
from pyof.foundation.exceptions import ValidationError
from pyof.v0x04.common.action import ActionOutput
from pyof.v0x04.common.constants import OFP_NO_BUFFER
from pyof.v0x04.common.port import PortNo
from pyof.v0x04.controller2switch.packet_out import PacketOut
from tests.unit.test_struct import TestStruct
NO_RAW = 'No raw dump file found.'
class TestPacketOut(TestStruct):
"""Packet out message tests (also those in :class:`.TestDump`).
Attributes:
message (PacketOut): The message configured in :meth:`setUpClass`.
"""
@classmethod
def setUpClass(cls):
"""Configure raw file and its object in parent class (TestDump)."""
super().setUpClass()
super().set_raw_dump_file('v0x04', 'ofpt_packet_out')
super().set_raw_dump_object(PacketOut, xid=2544740805,
buffer_id=OFP_NO_BUFFER,
in_port=PortNo.OFPP_CONTROLLER,
actions=_get_actions(), data=_get_data())
super().set_minimum_size(24)
def test_valid_virtual_in_ports(self):
"""Valid virtual ports as defined in 1.3.0 spec."""
virtual_ports = (PortNo.OFPP_LOCAL, PortNo.OFPP_CONTROLLER,
PortNo.OFPP_ANY)
for port in virtual_ports:
with self.subTest(port=port):
msg = PacketOut(in_port=port)
self.assertTrue(msg.is_valid(),
f'{port.name} should be a valid in_port')
def test_invalid_virtual_in_ports(self):
"""Invalid virtual ports as defined in 1.3.0 spec."""
try:
msg = self.get_raw_dump().read()
except FileNotFoundError:
raise self.skipTest(NO_RAW)
else:
invalid = (PortNo.OFPP_IN_PORT, PortNo.OFPP_TABLE,
PortNo.OFPP_NORMAL, PortNo.OFPP_FLOOD, PortNo.OFPP_ALL)
msg = self.get_raw_object()
for in_port in invalid:
msg.in_port = in_port
self.assertFalse(msg.is_valid())
self.assertRaises(ValidationError, msg.validate)
def test_valid_physical_in_ports(self):
"""Physical port limits from 1.3.0 spec."""
try:
msg = self.get_raw_dump().read()
except FileNotFoundError:
raise self.skipTest(NO_RAW)
else:
max_valid = int(PortNo.OFPP_MAX.value) - 1
msg = self.get_raw_object()
for in_port in (1, max_valid):
msg.in_port = in_port
self.assertTrue(msg.is_valid())
def _get_actions():
"""Return a list of actions used by packetout instance."""
action = ActionOutput(port=1)
return [action]
def _get_data():
"""Return a BinaryData used by packetout instance."""
data = b'\x01\x80\xc2\x00\x00\x0e\x4e\xbf\xca\x27\x8e\xca\x81\x00\x0e'
data += b'\xd7\x88\xcc\x02\x09\x07\x00\x00\x00\x00\x00\x00\x00\x01\x04'
data += b'\x05\x07\x00\x00\x00\x01\x06\x02\x00\x78\x00\x00'
return data
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