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"""Unit test for KNX/IP SessionRequest objects."""
from xknx.knxip import HPAI, KNXIPFrame, SessionRequest
from xknx.knxip.knxip_enum import HostProtocol
class TestKNXIPSessionRequest:
"""Test class for KNX/IP SessionRequest objects."""
def test_session_request(self) -> None:
"""Test parsing and streaming session request KNX/IP packet."""
public_key = bytes.fromhex(
"0a a2 27 b4 fd 7a 32 31" # Diffie-Hellman Client Public Value X
"9b a9 96 0a c0 36 ce 0e"
"5c 45 07 b5 ae 55 16 1f"
"10 78 b1 dc fb 3c b6 31"
)
raw = (
bytes.fromhex(
"06 10 09 51 00 2e" # KNXnet/IP header
"08 02 00 00 00 00 00 00" # HPAI TCPv4
)
+ public_key
)
knxipframe, _ = KNXIPFrame.from_knx(raw)
assert isinstance(knxipframe.body, SessionRequest)
assert knxipframe.body.control_endpoint == HPAI(protocol=HostProtocol.IPV4_TCP)
assert knxipframe.body.ecdh_client_public_key == public_key
assert knxipframe.to_knx() == raw
session_request = SessionRequest(ecdh_client_public_key=public_key)
knxipframe2 = KNXIPFrame.init_from_body(session_request)
assert knxipframe2.to_knx() == raw
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