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#!/usr/bin/env python
#
# Copyright 2012 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
import math
from gnuradio import gr, gr_unittest, digital
class test_lfsr(gr_unittest.TestCase):
def setUp(self):
pass
def tearDown(self):
pass
def test_lfsr_001(self):
reglen = 8
l = digital.lfsr(1, 1, reglen)
result_data = []
for i in range(4 * (reglen + 1)):
result_data.append(l.next_bit())
expected_result = 4 * ([1, ] + reglen * [0, ])
self.assertFloatTuplesAlmostEqual(expected_result, result_data, 5)
if __name__ == '__main__':
gr_unittest.run(test_lfsr)
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