mirror of
https://github.com/home-assistant/core
synced 2024-09-28 03:04:04 +02:00
a102c425a9
* Add speed conversion function * Add test for speed utility functions * Update unit system tests * Fix incorrect unit conversions in tests * Fix some test errors * Calculate speed units from smaller set of constants * Fix typo in speed test * Use pytest.approx for checking floating point values * Change other instance of speeds needing to be pytest.approx * Revert changes to unit system * Fix oopsie in defining in/day and in/hr * Parametrize test * Add comments describing calculations & remove duplicate test
71 lines
2.6 KiB
Python
71 lines
2.6 KiB
Python
"""Test Home Assistant speed utility functions."""
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import pytest
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from homeassistant.const import (
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SPEED_INCHES_PER_DAY,
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SPEED_INCHES_PER_HOUR,
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SPEED_KILOMETERS_PER_HOUR,
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SPEED_METERS_PER_SECOND,
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SPEED_MILES_PER_HOUR,
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SPEED_MILLIMETERS_PER_DAY,
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)
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import homeassistant.util.speed as speed_util
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INVALID_SYMBOL = "bob"
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VALID_SYMBOL = SPEED_KILOMETERS_PER_HOUR
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def test_convert_same_unit():
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"""Test conversion from any unit to same unit."""
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assert speed_util.convert(2, SPEED_INCHES_PER_DAY, SPEED_INCHES_PER_DAY) == 2
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assert speed_util.convert(3, SPEED_INCHES_PER_HOUR, SPEED_INCHES_PER_HOUR) == 3
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assert (
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speed_util.convert(4, SPEED_KILOMETERS_PER_HOUR, SPEED_KILOMETERS_PER_HOUR) == 4
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)
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assert speed_util.convert(5, SPEED_METERS_PER_SECOND, SPEED_METERS_PER_SECOND) == 5
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assert speed_util.convert(6, SPEED_MILES_PER_HOUR, SPEED_MILES_PER_HOUR) == 6
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assert (
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speed_util.convert(7, SPEED_MILLIMETERS_PER_DAY, SPEED_MILLIMETERS_PER_DAY) == 7
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)
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def test_convert_invalid_unit():
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"""Test exception is thrown for invalid units."""
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with pytest.raises(ValueError):
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speed_util.convert(5, INVALID_SYMBOL, VALID_SYMBOL)
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with pytest.raises(ValueError):
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speed_util.convert(5, VALID_SYMBOL, INVALID_SYMBOL)
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def test_convert_nonnumeric_value():
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"""Test exception is thrown for nonnumeric type."""
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with pytest.raises(TypeError):
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speed_util.convert("a", SPEED_KILOMETERS_PER_HOUR, SPEED_MILES_PER_HOUR)
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@pytest.mark.parametrize(
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"from_value, from_unit, expected, to_unit",
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[
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# 5 km/h / 1.609 km/mi = 3.10686 mi/h
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(5, SPEED_KILOMETERS_PER_HOUR, 3.10686, SPEED_MILES_PER_HOUR),
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# 5 mi/h * 1.609 km/mi = 8.04672 km/h
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(5, SPEED_MILES_PER_HOUR, 8.04672, SPEED_KILOMETERS_PER_HOUR),
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# 5 in/day * 25.4 mm/in = 127 mm/day
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(5, SPEED_INCHES_PER_DAY, 127, SPEED_MILLIMETERS_PER_DAY),
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# 5 mm/day / 25.4 mm/in = 0.19685 in/day
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(5, SPEED_MILLIMETERS_PER_DAY, 0.19685, SPEED_INCHES_PER_DAY),
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# 5 in/hr * 24 hr/day = 3048 mm/day
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(5, SPEED_INCHES_PER_HOUR, 3048, SPEED_MILLIMETERS_PER_DAY),
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# 5 m/s * 39.3701 in/m * 3600 s/hr = 708661
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(5, SPEED_METERS_PER_SECOND, 708661, SPEED_INCHES_PER_HOUR),
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# 5000 in/hr / 39.3701 in/m / 3600 s/hr = 0.03528 m/s
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(5000, SPEED_INCHES_PER_HOUR, 0.03528, SPEED_METERS_PER_SECOND),
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],
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)
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def test_convert_different_units(from_value, from_unit, expected, to_unit):
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"""Test conversion between units."""
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assert speed_util.convert(from_value, from_unit, to_unit) == pytest.approx(
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expected, rel=1e-4
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)
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