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"""Unit test for KNX/IP Tunnelling Request/Response."""
import asyncio
from unittest.mock import Mock, patch
from xknx.io.self_description import DescriptionQuery, request_description
from xknx.io.transport.udp_transport import UDPTransport
from xknx.knxip import HPAI, DescriptionRequest, KNXIPFrame, SearchRequestExtended
from xknx.telegram import IndividualAddress
from ..conftest import EventLoopClockAdvancer
class TestSelfDescription:
"""Test class for KNX/IP self description."""
# Core v1 device MDT KNX IP Router SCN-IP100.02
description_response_v1_raw = bytes.fromhex(
"06 10 02 04 00 46 36 01 02 00 20 00 00 00 00"
"83 47 7f 01 24 e0 00 17 0c cc 1b e0 80 04 c4"
"4d 44 54 20 4b 4e 58 20 49 50 20 52 6f 75 74"
"65 72 00 00 00 00 00 00 00 00 00 00 00 00 00"
"0a 02 02 01 03 01 04 01 05 01"
)
# Core v2 responses from a KNX IP Router 752 secure
description_response_raw = bytes.fromhex(
"06 10 02 04 00 4e 36 01 02 00 50 00 00 00 00"
"c5 01 04 d5 9d e0 00 17 0d 00 24 6d 02 94 c4"
"4b 4e 58 20 49 50 20 52 6f 75 74 65 72 20 37"
"35 32 20 73 65 63 75 72 65 00 00 00 00 00 00"
"0a 02 02 02 03 02 04 02 05 02 08 08 00 00 00"
"37 09 1a"
)
search_response_extended_raw = bytes.fromhex(
"06 10 02 0c 00 84 08 01 0a 01 01 5f 0e 57 36"
"01 02 00 50 00 00 00 00 c5 01 04 d5 9d e0 00"
"17 0d 00 24 6d 02 94 c4 4b 4e 58 20 49 50 20"
"52 6f 75 74 65 72 20 37 35 32 20 73 65 63 75"
"72 65 00 00 00 00 00 00 0c 02 02 02 03 02 04"
"02 05 02 09 01 08 06 03 01 04 01 05 01 24 07"
"00 37 50 01 ff fd 50 02 ff fd 50 03 ff fd 50"
"04 ff fd 50 05 ff fd 50 06 ff fd 50 07 ff fd"
"50 08 ff fd 08 08 00 00 00 37 09 1a"
)
async def test_description_query(self, time_travel: EventLoopClockAdvancer) -> None:
"""Test DescriptionQuery class."""
local_addr = ("127.0.0.1", 12345)
remote_addr = ("127.0.0.2", 54321)
transport_mocked = UDPTransport(local_addr=local_addr, remote_addr=remote_addr)
transport_mocked.getsockname = Mock(return_value=local_addr)
transport_mocked.send = Mock()
description_request = KNXIPFrame.init_from_body(
DescriptionRequest(control_endpoint=HPAI(*local_addr))
)
description_query = DescriptionQuery(
transport=transport_mocked, local_hpai=HPAI(*local_addr)
)
task = asyncio.create_task(description_query.start())
await time_travel(0)
transport_mocked.send.assert_called_once_with(description_request)
transport_mocked.data_received_callback(
raw=self.description_response_raw, source=remote_addr
)
await task
assert description_query.gateway_descriptor is not None
assert description_query.gateway_descriptor.name == "KNX IP Router 752 secure"
async def test_request_description_v1(
self,
time_travel: EventLoopClockAdvancer,
) -> None:
"""Test request_description function with Core v1 device."""
local_addr = ("127.0.0.1", 12345)
remote_addr = ("127.0.0.2", 54321)
with (
patch(
"xknx.io.self_description.UDPTransport.connect"
) as transport_connect_mock,
patch(
"xknx.io.self_description.UDPTransport.getsockname",
return_value=local_addr,
),
patch("xknx.io.self_description.UDPTransport.send") as transport_send_mock,
patch("xknx.io.self_description.UDPTransport.stop") as transport_stop_mock,
patch(
"xknx.io.self_description.DescriptionQuery", wraps=DescriptionQuery
) as description_query_mock,
):
task = asyncio.create_task(request_description(remote_addr[0]))
await time_travel(0)
transport_connect_mock.assert_called_once_with()
assert transport_send_mock.call_count == 1
assert isinstance(
transport_send_mock.call_args[0][0].body, DescriptionRequest
)
_transport = description_query_mock.call_args.kwargs["transport"]
_transport.data_received_callback(
self.description_response_v1_raw, remote_addr
)
gateway = await task
transport_stop_mock.assert_called_once()
assert transport_send_mock.call_count == 1
assert gateway.core_version == 1
assert gateway.name == "MDT KNX IP Router"
assert gateway.tunnelling_requires_secure is None
assert gateway.individual_address == IndividualAddress("2.0.0")
async def test_request_description_extended(
self,
time_travel: EventLoopClockAdvancer,
) -> None:
"""Test request_description function with Core v2 device."""
local_addr = ("127.0.0.1", 12345)
remote_addr = ("127.0.0.2", 54321)
with (
patch(
"xknx.io.self_description.UDPTransport.connect"
) as transport_connect_mock,
patch(
"xknx.io.self_description.UDPTransport.getsockname",
return_value=local_addr,
),
patch("xknx.io.self_description.UDPTransport.send") as transport_send_mock,
patch("xknx.io.self_description.UDPTransport.stop") as transport_stop_mock,
patch(
"xknx.io.self_description.DescriptionQuery", wraps=DescriptionQuery
) as description_query_mock,
):
task = asyncio.create_task(request_description(remote_addr[0]))
await time_travel(0)
transport_connect_mock.assert_called_once_with()
assert transport_send_mock.call_count == 1
assert isinstance(
transport_send_mock.call_args[0][0].body, DescriptionRequest
)
_transport = description_query_mock.call_args.kwargs["transport"]
_transport.data_received_callback(
self.description_response_raw, remote_addr
)
await time_travel(0)
assert transport_send_mock.call_count == 2
assert isinstance(
transport_send_mock.call_args[0][0].body, SearchRequestExtended
)
_transport = description_query_mock.call_args.kwargs["transport"]
_transport.data_received_callback(
self.search_response_extended_raw, remote_addr
)
gateway = await task
transport_stop_mock.assert_called_once()
assert transport_send_mock.call_count == 2
assert gateway.core_version == 2
assert gateway.name == "KNX IP Router 752 secure"
assert gateway.tunnelling_requires_secure is True
assert gateway.individual_address == IndividualAddress("5.0.0")
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