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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2022 Daniel Estevez <daniel@destevez.net>
#
# This file is part of gr-satellites
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
from gnuradio import gr, blocks, gr_unittest
import numpy as np
import pmt
# bootstrap satellites module, even from build dir
try:
import python as satellites
except ImportError:
pass
else:
import sys
sys.modules['satellites'] = satellites
from satellites import pdu_scrambler
class qa_pdu_scrambler(gr_unittest.TestCase):
def test_pdu_scrambler(self):
self.tb = gr.top_block()
self.dbg = blocks.message_debug()
size = 1024
sequence = np.random.randint(0, 256, size)
npdus = 16
msgs = [np.random.randint(0, 256, size=np.random.randint(0, size),
dtype='uint8')
for _ in range(npdus)]
pdus = [pmt.cons(pmt.PMT_NIL, pmt.init_u8vector(len(m), m))
for m in msgs]
self.scrambler = pdu_scrambler(sequence)
self.tb.msg_connect((self.scrambler, 'out'), (self.dbg, 'store'))
for pdu in pdus:
self.scrambler.to_basic_block()._post(pmt.intern('in'), pdu)
self.scrambler.to_basic_block()._post(
pmt.intern('system'),
pmt.cons(pmt.intern('done'), pmt.from_long(1)))
self.tb.run()
for j, msg in enumerate(msgs):
out = pmt.u8vector_elements(pmt.cdr(self.dbg.get_message(j)))
np.testing.assert_equal(out, msg ^ sequence[:msg.size])
self.tb = None
if __name__ == '__main__':
gr_unittest.run(qa_pdu_scrambler)
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