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"""Unit test for KNX DPT 5.010 value."""
import pytest
from xknx.dpt import DPTAngle, DPTArray, DPTScaling, DPTTariff, DPTValue1Ucount
from xknx.exceptions import ConversionError, CouldNotParseTelegram
class TestDPTValue1Ucount:
"""Test class for KNX 8-bit unsigned value."""
def test_value_50(self) -> None:
"""Test parsing and streaming of DPTValue1Ucount 50."""
assert DPTValue1Ucount.to_knx(50) == DPTArray(0x32)
assert DPTValue1Ucount.from_knx(DPTArray((0x32,))) == 50
def test_value_max(self) -> None:
"""Test parsing and streaming of DPTValue1Ucount 255."""
assert DPTValue1Ucount.to_knx(255) == DPTArray(0xFF)
assert DPTValue1Ucount.from_knx(DPTArray((0xFF,))) == 255
def test_value_min(self) -> None:
"""Test parsing and streaming of DPTValue1Ucount 0."""
assert DPTValue1Ucount.to_knx(0) == DPTArray(0x00)
assert DPTValue1Ucount.from_knx(DPTArray((0x00,))) == 0
def test_to_knx_min_exceeded(self) -> None:
"""Test parsing of DPTValue1Ucount with wrong value (underflow)."""
with pytest.raises(ConversionError):
DPTValue1Ucount.to_knx(DPTValue1Ucount.value_min - 1)
def test_to_knx_max_exceeded(self) -> None:
"""Test parsing of DPTValue1Ucount with wrong value (overflow)."""
with pytest.raises(ConversionError):
DPTValue1Ucount.to_knx(DPTValue1Ucount.value_max + 1)
def test_to_knx_wrong_parameter(self) -> None:
"""Test parsing of DPTValue1Ucount with wrong value (string)."""
with pytest.raises(ConversionError):
DPTValue1Ucount.to_knx("fnord")
def test_from_knx_wrong_parameter(self) -> None:
"""Test parsing of DPTValue1Ucount with wrong value (3 byte array)."""
with pytest.raises(CouldNotParseTelegram):
DPTValue1Ucount.from_knx(DPTArray((0x01, 0x02, 0x03)))
def test_from_knx_wrong_value(self) -> None:
"""Test parsing of DPTValue1Ucount with value which exceeds limits."""
with pytest.raises(ConversionError):
DPTValue1Ucount.from_knx(DPTArray((0x256,)))
def test_from_knx_wrong_parameter2(self) -> None:
"""Test parsing of DPTValue1Ucount with wrong value (array containing string)."""
with pytest.raises(CouldNotParseTelegram):
DPTValue1Ucount.from_knx("0x23")
class TestDPTScaling:
"""Test class for KNX scaling value."""
@pytest.mark.parametrize(
("raw", "value"),
[
((0x4C,), 30),
((0xFC,), 99),
((0xFF,), 100),
((0x00,), 0),
],
)
def test_transcoder(self, raw: tuple[int], value: int) -> None:
"""Test parsing and streaming of DPTScaling."""
assert DPTScaling.to_knx(value) == DPTArray(raw)
assert DPTScaling.from_knx(DPTArray(raw)) == value
def test_to_knx_min_exceeded(self) -> None:
"""Test parsing of DPTScaling with wrong value (underflow)."""
with pytest.raises(ConversionError):
DPTScaling.to_knx(-1)
def test_to_knx_max_exceeded(self) -> None:
"""Test parsing of DPTScaling with wrong value (overflow)."""
with pytest.raises(ConversionError):
DPTScaling.to_knx(101)
def test_to_knx_wrong_parameter(self) -> None:
"""Test parsing of DPTScaling with wrong value (string)."""
with pytest.raises(ConversionError):
DPTScaling.to_knx("fnord")
def test_from_knx_wrong_parameter(self) -> None:
"""Test parsing of DPTScaling with wrong value (3 byte array)."""
with pytest.raises(CouldNotParseTelegram):
DPTScaling.from_knx(DPTArray((0x01, 0x02, 0x03)))
def test_from_knx_wrong_value(self) -> None:
"""Test parsing of DPTScaling with value which exceeds limits."""
with pytest.raises(ConversionError):
DPTScaling.from_knx(DPTArray((0x256,)))
class TestDPTAngle:
"""Test class for KNX scaling value."""
@pytest.mark.parametrize(
("raw", "value"),
[
((0x15,), 30),
((0xBF,), 270),
((0xFF,), 360),
((0x00,), 0),
],
)
def test_transcoder(self, raw: tuple[int], value: int) -> None:
"""Test parsing and streaming of DPTAngle."""
assert DPTAngle.to_knx(value) == DPTArray(raw)
assert DPTAngle.from_knx(DPTArray(raw)) == value
def test_to_knx_min_exceeded(self) -> None:
"""Test parsing of DPTAngle with wrong value (underflow)."""
with pytest.raises(ConversionError):
DPTAngle.to_knx(-1)
def test_to_knx_max_exceeded(self) -> None:
"""Test parsing of DPTAngle with wrong value (overflow)."""
with pytest.raises(ConversionError):
DPTAngle.to_knx(361)
class TestDPTTariff:
"""Test class for KNX 8-bit tariff information."""
def test_from_knx_max_exceeded(self) -> None:
"""Test parsing of DPTTariff with wrong value (overflow)."""
with pytest.raises(ConversionError):
DPTTariff.from_knx(DPTArray((0xFF,)))
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