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#!/usr/bin/env python
#
# Copyright 2006,2007,2010,2011,2013 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr, gr_unittest, digital, blocks
import pmt
import numpy
from time import sleep
class test_hdlc_framer(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_001(self):
# test complementary operation of framer & deframer
# want to frame some random data that has enough consecutive bits to
# stuff at least a few bits
npkts = 20
src_data = [0xFE, 0xDA, 0xAC, 0x29, 0x7F, 0xA2, 0x90, 0x0F, 0xF8]
frame = digital.hdlc_framer_pb("wat")
deframe = digital.hdlc_deframer_bp(8, 500)
debug = blocks.message_debug()
self.tb.connect(frame, deframe)
self.tb.msg_connect(deframe, "out", debug, "store")
self.tb.start()
msg = pmt.cons(pmt.PMT_NIL, pmt.init_u8vector(len(src_data), src_data))
for i in range(npkts):
frame.to_basic_block()._post(pmt.intern("in"), msg)
sleep(0.2)
self.tb.stop()
self.tb.wait()
rxmsg = debug.get_message(0)
result_len = pmt.blob_length(pmt.cdr(rxmsg))
msg_data = []
for j in range(result_len):
msg_data.append(pmt.u8vector_ref(pmt.cdr(rxmsg), j))
self.assertEqual(src_data, msg_data)
if __name__ == '__main__':
gr_unittest.run(test_hdlc_framer)
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