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#!/usr/bin/env python
#
# Copyright 2012 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 analog_swig as analog
class test_simple_squelch(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_simple_squelch_001(self):
# Test set/gets
alpha = 0.0001
thr1 = 10
thr2 = 20
op = analog.simple_squelch_cc(thr1, alpha)
op.set_threshold(thr2)
t = op.threshold()
self.assertEqual(thr2, t)
def test_simple_squelch_002(self):
alpha = 0.0001
thr = -25
src_data = map(lambda x: float(x)/10.0, range(1, 40))
src = gr.vector_source_c(src_data)
op = analog.simple_squelch_cc(thr, alpha)
dst = gr.vector_sink_c()
self.tb.connect(src, op)
self.tb.connect(op, dst)
self.tb.run()
expected_result = src_data
expected_result[0:20] = 20*[0,]
result_data = dst.data()
self.assertComplexTuplesAlmostEqual(expected_result, result_data, 4)
if __name__ == '__main__':
gr_unittest.run(test_simple_squelch, "test_simple_squelch.xml")
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