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"""Unit test for KNX/IP HPAI objects."""
import pytest
from xknx.exceptions import ConversionError, CouldNotParseKNXIP
from xknx.knxip import HPAI, HostProtocol
class TestKNXIPHPAI:
"""Test class for KNX/IP HPAI objects."""
def test_hpai_udp(self) -> None:
"""Test parsing and streaming HPAI KNX/IP fragment."""
raw = bytes((0x08, 0x01, 0xC0, 0xA8, 0x2A, 0x01, 0x84, 0x95))
hpai = HPAI()
assert hpai.from_knx(raw) == 8
assert hpai.ip_addr == "192.168.42.1"
assert hpai.port == 33941
assert hpai.protocol == HostProtocol.IPV4_UDP
assert not hpai.route_back
hpai2 = HPAI(ip_addr="192.168.42.1", port=33941)
assert hpai2.to_knx() == raw
assert not hpai2.route_back
def test_hpai_tcp(self) -> None:
"""Test parsing and streaming HPAI KNX/IP fragment."""
raw = bytes((0x08, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00))
hpai = HPAI()
assert hpai.from_knx(raw) == 8
assert hpai.ip_addr == "0.0.0.0"
assert hpai.port == 0
assert hpai.protocol == HostProtocol.IPV4_TCP
assert hpai.route_back
hpai2 = HPAI(ip_addr="0.0.0.0", port=0, protocol=HostProtocol.IPV4_TCP)
assert hpai2.to_knx() == raw
def test_from_knx_wrong_input1(self) -> None:
"""Test parsing of wrong HPAI KNX/IP packet (wrong length)."""
raw = bytes((0x08, 0x01, 0xC0, 0xA8, 0x2A))
with pytest.raises(CouldNotParseKNXIP):
HPAI().from_knx(raw)
def test_from_knx_wrong_input2(self) -> None:
"""Test parsing of wrong HPAI KNX/IP packet (wrong length byte)."""
raw = bytes((0x09, 0x01, 0xC0, 0xA8, 0x2A, 0x01, 0x84, 0x95))
with pytest.raises(CouldNotParseKNXIP):
HPAI().from_knx(raw)
def test_from_knx_wrong_input3(self) -> None:
"""Test parsing of wrong HPAI KNX/IP packet (wrong HPAI type)."""
raw = bytes((0x08, 0x03, 0xC0, 0xA8, 0x2A, 0x01, 0x84, 0x95))
with pytest.raises(CouldNotParseKNXIP):
HPAI().from_knx(raw)
def test_to_knx_wrong_ip(self) -> None:
"""Test serializing HPAI to KNV/IP with wrong ip type."""
hpai = HPAI(ip_addr=127001)
with pytest.raises(ConversionError):
hpai.to_knx()
def test_route_back(self) -> None:
"""Test route_back property."""
hpai = HPAI()
assert hpai.ip_addr == "0.0.0.0"
assert hpai.port == 0
assert hpai.route_back
hpai.ip_addr = "10.1.2.3"
assert not hpai.route_back
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