aioesphomeapi/tests/test_util.py

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import math
2021-07-12 20:09:17 +02:00
import pytest
from aioesphomeapi import util
VARUINT_TESTCASES = [
(0, b"\x00"),
(42, b"\x2a"),
(127, b"\x7f"),
(128, b"\x80\x01"),
(300, b"\xac\x02"),
(65536, b"\x80\x80\x04"),
]
@pytest.mark.parametrize("val, encoded", VARUINT_TESTCASES)
def test_varuint_to_bytes(val, encoded):
assert util.varuint_to_bytes(val) == encoded
@pytest.mark.parametrize("val, encoded", VARUINT_TESTCASES)
def test_bytes_to_varuint(val, encoded):
assert util.bytes_to_varuint(encoded) == val
@pytest.mark.parametrize(
"input, output",
[
(0, 0),
(float("inf"), float("inf")),
(float("-inf"), float("-inf")),
(0.1, 0.1),
(-0.0, -0.0),
(0.10000000149011612, 0.1),
(1, 1),
(-1, -1),
(-0.10000000149011612, -0.1),
(-152198557936981706463557226105667584, -152198600000000000000000000000000000),
(-0.0030539485160261, -0.003053949),
(0.5, 0.5),
(0.0000000000000019, 0.0000000000000019),
],
)
def test_fix_float_single_double_conversion(input, output):
assert util.fix_float_single_double_conversion(input) == output
def test_fix_float_single_double_conversion_nan():
assert math.isnan(util.fix_float_single_double_conversion(float("nan")))