def test_bytes_error(self):
from klvdata.common import bytes_to_float
with self.assertRaises(ValueError):
bytes_to_float(b'\x7F\xFF\xFF',
_domain=(-(2**15 - 1), 2**15 - 1),
_range=(-20, 20))
def test_bytes_unsigned(self):
from klvdata.common import bytes_to_float
self.assertAlmostEqual(
bytes_to_float(b'\x00\x00',
_domain=(0, 2**16 - 1),
_range=(0, 360)), 0.0)
self.assertAlmostEqual(
bytes_to_float(b'\x71\xC2',
_domain=(0, 2**16 - 1),
_range=(0, 360)), 159.974, 3)
self.assertAlmostEqual(
bytes_to_float(b'\xFF\xFF',
_domain=(0, 2**16 - 1),
_range=(0, 360)), 360.0)
def __init__(self, value, _domain, _range):
self._domain = _domain
self._range = _range
try:
self.value = bytes_to_float(value, self._domain, self._range)
except TypeError:
self.value = value
def test_bytes_signed(self):
from klvdata.common import bytes_to_float
self.assertAlmostEqual(
bytes_to_float(b'\x80\x01',
_domain=(-(2**15 - 1), 2**15 - 1),
_range=(-20, 20)), -20.0)
self.assertAlmostEqual(
bytes_to_float(b'\x00\x00',
_domain=(-(2**15 - 1), 2**15 - 1),
_range=(-20, 20)), 0.0)
self.assertAlmostEqual(
bytes_to_float(b'\xFD\x3D',
_domain=(-(2**15 - 1), 2**15 - 1),
_range=(-20, 20)), -0.4315, 3)
self.assertAlmostEqual(
bytes_to_float(b'\x7F\xFF',
_domain=(-(2**15 - 1), 2**15 - 1),
_range=(-20, 20)), 20.0, 7)