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Add missing ratio test cases in unit conversion (#86340)

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* Add missing ratio test cases in unit conversion

* Improve ratio test to check inverse
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epenet 2023-01-22 16:39:45 +01:00 committed by GitHub
parent b9a7b908f3
commit e1fc494b54
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1 changed files with 45 additions and 41 deletions
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86
tests/util/test_unit_conversion.py
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@ -6,8 +6,10 @@ import inspect
import pytest
from homeassistant.const import (
PERCENTAGE,
UnitOfDataRate,
UnitOfElectricCurrent,
UnitOfElectricPotential,
UnitOfEnergy,
UnitOfInformation,
UnitOfLength,
@ -63,6 +65,43 @@ _ALL_CONVERTERS: dict[type[BaseUnitConverter], list[str | None]] = {
)
}
# Dict containing all converters with a corresponding unit ratio.
_GET_UNIT_RATIO: dict[type[BaseUnitConverter], tuple[str | None, str | None, float]] = {
DataRateConverter: (
UnitOfDataRate.BITS_PER_SECOND,
UnitOfDataRate.BYTES_PER_SECOND,
8,
),
DistanceConverter: (UnitOfLength.KILOMETERS, UnitOfLength.METERS, 0.001),
ElectricCurrentConverter: (
UnitOfElectricCurrent.AMPERE,
UnitOfElectricCurrent.MILLIAMPERE,
0.001,
),
ElectricPotentialConverter: (
UnitOfElectricPotential.MILLIVOLT,
UnitOfElectricPotential.VOLT,
1000,
),
EnergyConverter: (UnitOfEnergy.WATT_HOUR, UnitOfEnergy.KILO_WATT_HOUR, 1000),
InformationConverter: (UnitOfInformation.BITS, UnitOfInformation.BYTES, 8),
MassConverter: (UnitOfMass.STONES, UnitOfMass.KILOGRAMS, 0.157473),
PowerConverter: (UnitOfPower.WATT, UnitOfPower.KILO_WATT, 1000),
PressureConverter: (UnitOfPressure.HPA, UnitOfPressure.INHG, 33.86389),
SpeedConverter: (
UnitOfSpeed.KILOMETERS_PER_HOUR,
UnitOfSpeed.MILES_PER_HOUR,
1.609343,
),
TemperatureConverter: (
UnitOfTemperature.CELSIUS,
UnitOfTemperature.FAHRENHEIT,
0.555556,
),
UnitlessRatioConverter: (PERCENTAGE, None, 100),
VolumeConverter: (UnitOfVolume.GALLONS, UnitOfVolume.LITERS, 0.264172),
}
@pytest.mark.parametrize(
"converter",
@ -80,6 +119,7 @@ _ALL_CONVERTERS: dict[type[BaseUnitConverter], list[str | None]] = {
def test_all_converters(converter: type[BaseUnitConverter]) -> None:
"""Ensure all unit converters are tested."""
assert converter in _ALL_CONVERTERS, "converter is not present in _ALL_CONVERTERS"
assert converter in _GET_UNIT_RATIO, "converter is not present in _GET_UNIT_RATIO"
@pytest.mark.parametrize(
@ -135,53 +175,17 @@ def test_convert_nonnumeric_value(
@pytest.mark.parametrize(
"converter,from_unit,to_unit,expected",
[
(
DataRateConverter,
UnitOfDataRate.BITS_PER_SECOND,
UnitOfDataRate.BYTES_PER_SECOND,
8,
),
(DistanceConverter, UnitOfLength.KILOMETERS, UnitOfLength.METERS, 1 / 1000),
(
ElectricCurrentConverter,
UnitOfElectricCurrent.AMPERE,
UnitOfElectricCurrent.MILLIAMPERE,
1 / 1000,
),
(EnergyConverter, UnitOfEnergy.WATT_HOUR, UnitOfEnergy.KILO_WATT_HOUR, 1000),
(InformationConverter, UnitOfInformation.BITS, UnitOfInformation.BYTES, 8),
(PowerConverter, UnitOfPower.WATT, UnitOfPower.KILO_WATT, 1000),
(
PressureConverter,
UnitOfPressure.HPA,
UnitOfPressure.INHG,
pytest.approx(33.86389),
),
(
SpeedConverter,
UnitOfSpeed.KILOMETERS_PER_HOUR,
UnitOfSpeed.MILES_PER_HOUR,
pytest.approx(1.609343),
),
(
TemperatureConverter,
UnitOfTemperature.CELSIUS,
UnitOfTemperature.FAHRENHEIT,
1 / 1.8,
),
(
VolumeConverter,
UnitOfVolume.GALLONS,
UnitOfVolume.LITERS,
pytest.approx(0.264172),
),
(converter, item[0], item[1], item[2])
for converter, item in _GET_UNIT_RATIO.items()
],
)
def test_get_unit_ratio(
converter: type[BaseUnitConverter], from_unit: str, to_unit: str, expected: float
) -> None:
"""Test unit ratio."""
assert converter.get_unit_ratio(from_unit, to_unit) == expected
ratio = converter.get_unit_ratio(from_unit, to_unit)
assert ratio == pytest.approx(expected)
assert converter.get_unit_ratio(to_unit, from_unit) == pytest.approx(1 / ratio)
@pytest.mark.parametrize(