def check_frame(self):
""" Check and decode the next frame
:returns: True if we successful, False otherwise
"""
start = self.buffer.find(self.__start)
if start == -1:
return False
if start > 0: # go ahead and skip old bad data
self.buffer = self.buffer[start:]
start = 0
end = self.buffer.find(self.__end)
if end != -1:
self.header['len'] = end
self.header['uid'] = int(self.buffer[1:3], 16)
self.header['lrc'] = int(self.buffer[end - 2:end], 16)
data = a2b_hex(self.buffer[start + 1:end - 2])
return check_lrc(data, self.header['lrc'])
return False
def check_frame(self):
""" Check and decode the next frame
:returns: True if we successful, False otherwise
"""
start = self.buffer.find(self.__start)
if start == -1:
return False
if start > 0: # go ahead and skip old bad data
self.buffer = self.buffer[start:]
start = 0
end = self.buffer.find(self.__end)
if end != -1:
self.header['len'] = end
self.header['uid'] = int(self.buffer[1:3], 16)
self.header['lrc'] = int(self.buffer[end - 2:end], 16)
data = a2b_hex(self.buffer[start + 1:end - 2])
return check_lrc(data, self.header['lrc'])
return False
def test_longitudinal_redundancy_check(self):
""" Test the longitudinal redundancy check code """
self.assertTrue(check_lrc(self.data, 0x1c))
self.assertTrue(check_lrc(self.string, 0x0c))
def test_longitudinal_redundancy_check(self):
""" Test the longitudinal redundancy check code """
self.assertTrue(check_lrc(self.data, 0x1c))
self.assertTrue(check_lrc(self.string, 0x0c))