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"""Unit test for KNX/IP DeviceConfigurationRequest objects."""
import pytest
from xknx.cemi import CEMIFrame, CEMIMessageCode, CEMIMPropInfo, CEMIMPropReadRequest
from xknx.exceptions import CouldNotParseKNXIP
from xknx.knxip import DeviceConfigurationRequest, KNXIPFrame
from xknx.profile.const import ResourceKNXNETIPPropertyId, ResourceObjectType
class TestKNXIPDeviceConfigurationRequest:
"""Test class for KNX/IP DeviceConfigurationRequest objects."""
def test_device_configuration_request(self) -> None:
"""Test parsing and streaming device configuration ACK KNX/IP packet."""
raw = bytes.fromhex("06 10 03 10 00 11 04 2A 17 00 FC 00 0B 01 34 10 01")
knxipframe, _ = KNXIPFrame.from_knx(raw)
assert isinstance(knxipframe.body, DeviceConfigurationRequest)
assert knxipframe.body.communication_channel_id == 42
assert knxipframe.body.sequence_counter == 23
assert isinstance(knxipframe.body.raw_cemi, bytes)
incoming_cemi = CEMIFrame.from_knx(knxipframe.body.raw_cemi)
assert incoming_cemi.code == CEMIMessageCode.M_PROP_READ_REQ
assert incoming_cemi.data == CEMIMPropReadRequest(
property_info=CEMIMPropInfo(
object_type=ResourceObjectType.OBJECT_KNXNETIP_PARAMETER,
object_instance=1,
property_id=ResourceKNXNETIPPropertyId.PID_KNX_INDIVIDUAL_ADDRESS,
start_index=1,
number_of_elements=1,
)
)
outgoing_cemi = CEMIFrame(
code=CEMIMessageCode.M_PROP_READ_REQ,
data=CEMIMPropReadRequest(
property_info=CEMIMPropInfo(
object_type=ResourceObjectType.OBJECT_KNXNETIP_PARAMETER,
object_instance=1,
property_id=ResourceKNXNETIPPropertyId.PID_KNX_INDIVIDUAL_ADDRESS,
start_index=1,
number_of_elements=1,
)
),
)
device_configuration_req = DeviceConfigurationRequest(
communication_channel_id=42,
sequence_counter=23,
raw_cemi=outgoing_cemi.to_knx(),
)
knxipframe2 = KNXIPFrame.init_from_body(device_configuration_req)
assert knxipframe2.to_knx() == raw
def test_from_knx_wrong_header(self) -> None:
"""Test parsing and streaming wrong DeviceConfigurationRequest (wrong length byte)."""
raw = bytes((0x06, 0x10, 0x03, 0x10, 0x00, 0x15, 0x03))
with pytest.raises(CouldNotParseKNXIP):
KNXIPFrame.from_knx(raw)
def test_from_knx_wrong_header2(self) -> None:
"""Test parsing and streaming wrong DeviceConfigurationRequest (wrong length)."""
raw = bytes((0x06, 0x10, 0x03, 0x10, 0x00, 0x15, 0x04))
with pytest.raises(CouldNotParseKNXIP):
KNXIPFrame.from_knx(raw)
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