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#!/usr/bin/env python
#
# Copyright 2004,2007,2010-2013 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
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.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 = blocks.vector_source_c(src_data)
op = digital.constellation_decoder_cb(cnst.base())
dst = blocks.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.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 = blocks.vector_source_c(src_data)
op = digital.constellation_decoder_cb(cnst.base())
dst = blocks.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)
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