def check_crc_missing_crc(expect):
with raises(framing.CRCCheckFailure):
framing.check_crc(b'hello world')
def check_crc(expect):
expect(framing.check_crc(b'hello world\xa8')) == b'hello world'
def check_crc_failure(expect):
with raises(framing.CRCCheckFailure):
framing.check_crc(b'hello world\xff')
def check_crc_empty_string(expect):
expect(framing.check_crc(b'\x00')) == b''
def check_crc_zero_length(expect):
with raises(framing.CRCCheckFailure):
framing.check_crc(b'')
def check_crc_32bit(expect):
expect(
framing.check_crc(b'hello world\x85\x11J\r',
crc_size=CrcSize.CRC32)) == b'hello world'
def check_crc_16bit(expect):
expect(framing.check_crc(b'hello world\xc19',
crc_size=CrcSize.CRC16)) == b'hello world'
def check_crc_8bit(expect):
expect(framing.check_crc(b'hello world\xa8',
crc_size=CrcSize.CRC8)) == b'hello world'