def length(self):
"""bytes: Return the BER encoded byte length of self.value."""
if self is None or self.value is None:
return 0
return ber_encode(len(self))
def test_ber_encode_decode(self):
from QGIS_FMV.klvdata.common import ber_decode
from QGIS_FMV.klvdata.common import ber_encode
self.assertEqual(ber_decode(ber_encode(0)), 0)
self.assertEqual(ber_decode(ber_encode(1)), 1)
self.assertEqual(ber_decode(ber_encode(8)), 8)
self.assertEqual(ber_decode(ber_encode(127)), 127)
self.assertEqual(ber_decode(ber_encode(128)), 128)
self.assertEqual(ber_decode(ber_encode(254)), 254)
self.assertEqual(ber_decode(ber_encode(255)), 255)
self.assertEqual(ber_decode(ber_encode(256)), 256)
self.assertEqual(ber_decode(ber_encode(900)), 900)
self.assertEqual(ber_decode(ber_encode(9000)), 9000)
self.assertEqual(ber_decode(ber_encode(90000)), 90000)
self.assertEqual(ber_decode(ber_encode(900000)), 900000)
def length(self):
"""bytes: Return the BER encoded byte length of self.value."""
return ber_encode(len(self))
def test_ber_decode_encode(self):
from QGIS_FMV.klvdata.common import ber_decode
from QGIS_FMV.klvdata.common import ber_encode
# BER Short Form
self.assertEqual(ber_encode(ber_decode(b'\x00')), b'\x00')
self.assertEqual(ber_encode(ber_decode(b'\x01')), b'\x01')
self.assertEqual(ber_encode(ber_decode(b'\x08')), b'\x08')
self.assertEqual(ber_encode(ber_decode(b'\x7F')), b'\x7F')
# BER Long Form
self.assertEqual(ber_encode(ber_decode(b'\x81\x80')), b'\x81\x80')
self.assertEqual(ber_encode(ber_decode(b'\x81\xFF')), b'\x81\xFF')
self.assertEqual(ber_encode(ber_decode(b'\x82\xFF\xFF')),
b'\x82\xFF\xFF')
self.assertEqual(ber_encode(ber_decode(b'\x83\xFF\xFF\xFF')),
b'\x83\xFF\xFF\xFF')
# BER encode using the fewest possible bytes
self.assertEqual(ber_encode(ber_decode(b'\x80')), b'\x00')
self.assertEqual(ber_encode(ber_decode(b'\x81\x00')), b'\x00')
self.assertEqual(ber_encode(ber_decode(b'\x81\x01')), b'\x01')
self.assertEqual(ber_encode(ber_decode(b'\x81\x7F')), b'\x7F')