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#!/usr/bin/env python
#
# Copyright 2004,2007,2010,2011 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
import math
class test_constellation_decoder (gr_unittest.TestCase):
def setUp (self):
self.tb = gr.top_block ()
def tearDown (self):
self.tb = None
def test_constellation_decoder_cb_bpsk (self):
cnst = digital_swig.constellation_bpsk()
src_data = (0.5 + 0.5j, 0.1 - 1.2j, -0.8 - 0.1j, -0.45 + 0.8j,
0.8 + 1.0j, -0.5 + 0.1j, 0.1 - 1.2j)
expected_result = ( 1, 1, 0, 0,
1, 0, 1)
src = gr.vector_source_c (src_data)
op = digital_swig.constellation_decoder_cb (cnst.base())
dst = gr.vector_sink_b ()
self.tb.connect (src, op)
self.tb.connect (op, dst)
self.tb.run () # run the graph and wait for it to finish
actual_result = dst.data () # fetch the contents of the sink
#print "actual result", actual_result
#print "expected result", expected_result
self.assertFloatTuplesAlmostEqual (expected_result, actual_result)
def test_constellation_decoder_cb_qpsk (self):
cnst = digital_swig.constellation_qpsk()
src_data = (0.5 + 0.5j, 0.1 - 1.2j, -0.8 - 0.1j, -0.45 + 0.8j,
0.8 + 1.0j, -0.5 + 0.1j, 0.1 - 1.2j)
expected_result = ( 3, 1, 0, 2,
3, 2, 1)
src = gr.vector_source_c (src_data)
op = digital_swig.constellation_decoder_cb (cnst.base())
dst = gr.vector_sink_b ()
self.tb.connect (src, op)
self.tb.connect (op, dst)
self.tb.run () # run the graph and wait for it to finish
actual_result = dst.data () # fetch the contents of the sink
#print "actual result", actual_result
#print "expected result", expected_result
self.assertFloatTuplesAlmostEqual (expected_result, actual_result)
if __name__ == '__main__':
gr_unittest.run(test_constellation_decoder, "test_constellation_decoder.xml")
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