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"""Unit test for KNX 2 byte objects."""
import pytest
from xknx.dpt import DPTArray, DPTUElCurrentmA
from xknx.exceptions import ConversionError, CouldNotParseTelegram
class TestDPT2byte:
"""Test class for KNX 2 byte objects."""
#
# DPTUElCurrentmA
#
def test_current_settings(self) -> None:
"""Test members of DPTUElCurrentmA."""
assert DPTUElCurrentmA.value_min == 0
assert DPTUElCurrentmA.value_max == 65535
assert DPTUElCurrentmA.unit == "mA"
assert DPTUElCurrentmA.resolution == 1
def test_current_assert_min_exceeded(self) -> None:
"""Test initialization of DPTUElCurrentmA with wrong value (Underflow)."""
with pytest.raises(ConversionError):
DPTUElCurrentmA.to_knx(-1)
def test_current_to_knx_exceed_limits(self) -> None:
"""Test initialization of DPTUElCurrentmA with wrong value (Overflow)."""
with pytest.raises(ConversionError):
DPTUElCurrentmA.to_knx(65536)
def test_current_value_max_value(self) -> None:
"""Test DPTUElCurrentmA parsing and streaming."""
assert DPTUElCurrentmA.to_knx(65535) == DPTArray((0xFF, 0xFF))
assert DPTUElCurrentmA.from_knx(DPTArray((0xFF, 0xFF))) == 65535
def test_current_value_min_value(self) -> None:
"""Test DPTUElCurrentmA parsing and streaming with null values."""
assert DPTUElCurrentmA.to_knx(0) == DPTArray((0x00, 0x00))
assert DPTUElCurrentmA.from_knx(DPTArray((0x00, 0x00))) == 0
def test_current_value_38(self) -> None:
"""Test DPTUElCurrentmA parsing and streaming 38mA."""
assert DPTUElCurrentmA.to_knx(38) == DPTArray((0x00, 0x26))
assert DPTUElCurrentmA.from_knx(DPTArray((0x00, 0x26))) == 38
def test_current_value_78(self) -> None:
"""Test DPTUElCurrentmA parsing and streaming 78mA."""
assert DPTUElCurrentmA.to_knx(78) == DPTArray((0x00, 0x4E))
assert DPTUElCurrentmA.from_knx(DPTArray((0x00, 0x4E))) == 78
def test_current_value_1234(self) -> None:
"""Test DPTUElCurrentmA parsing and streaming 4660mA."""
assert DPTUElCurrentmA.to_knx(4660) == DPTArray((0x12, 0x34))
assert DPTUElCurrentmA.from_knx(DPTArray((0x12, 0x34))) == 4660
def test_current_wrong_value_from_knx(self) -> None:
"""Test DPTUElCurrentmA parsing with wrong value."""
with pytest.raises(CouldNotParseTelegram):
DPTUElCurrentmA.from_knx(DPTArray((0xFF, 0x4E, 0x12)))
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