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#!/usr/bin/env python
#
# Copyright 2006,2007,2010,2011 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from gnuradio import gr, gr_unittest
import digital_swig as digital
import math
default_access_code = '\xAC\xDD\xA4\xE2\xF2\x8C\x20\xFC'
def string_to_1_0_list(s):
r = []
for ch in s:
x = ord(ch)
for i in range(8):
t = (x >> i) & 0x1
r.append(t)
return r
def to_1_0_string(L):
return ''.join(map(lambda x: chr(x + ord('0')), L))
class test_correlate_access_code(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_001(self):
pad = (0,) * 64
# 0 0 0 1 0 0 0 1
src_data = (1, 0, 1, 1, 1, 1, 0, 1, 1) + pad + (0,) * 7
expected_result = pad + (1, 0, 1, 1, 3, 1, 0, 1, 1, 2) + (0,) * 6
src = gr.vector_source_b (src_data)
op = digital.correlate_access_code_bb("1011", 0)
dst = gr.vector_sink_b ()
self.tb.connect (src, op, dst)
self.tb.run ()
result_data = dst.data ()
self.assertEqual (expected_result, result_data)
def test_002(self):
code = tuple(string_to_1_0_list(default_access_code))
access_code = to_1_0_string(code)
pad = (0,) * 64
#print code
#print access_code
src_data = code + (1, 0, 1, 1) + pad
expected_result = pad + code + (3, 0, 1, 1)
src = gr.vector_source_b (src_data)
op = digital.correlate_access_code_bb(access_code, 0)
dst = gr.vector_sink_b ()
self.tb.connect (src, op, dst)
self.tb.run ()
result_data = dst.data ()
self.assertEqual (expected_result, result_data)
def test_003(self):
code = tuple(string_to_1_0_list(default_access_code))
access_code = to_1_0_string(code)
pad = (0,) * 64
#print code
#print access_code
src_data = code + (1, 0, 1, 1) + pad
expected_result = code + (1, 0, 1, 1) + pad
src = gr.vector_source_b (src_data)
op = digital.correlate_access_code_tag_bb(access_code, 0, "test")
dst = gr.vector_sink_b ()
self.tb.connect (src, op, dst)
self.tb.run ()
result_data = dst.data ()
self.assertEqual (expected_result, result_data)
if __name__ == '__main__':
gr_unittest.run(test_correlate_access_code, "test_correlate_access_code.xml")
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