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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
import math
class test_dpll_bb(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_dpll_bb_001(self):
# Test set/gets
period = 1.0
gain = 0.1
op = analog.dpll_bb(period, gain)
op.set_gain(0.2)
g = op.gain()
self.assertAlmostEqual(g, 0.2)
f = op.freq()
self.assertEqual(1/period, f)
d0 = 1.0 - 0.5*f;
d1 = op.decision_threshold()
self.assertAlmostEqual(d0, d1)
p = op.phase()
self.assertEqual(0, p)
def test_dpll_bb_002(self):
period = 4
gain = 0.1
src_data = 10*((period-1)*[0,] + [1,])
expected_result = src_data
src = gr.vector_source_b(src_data)
op = analog.dpll_bb(period, gain)
dst = gr.vector_sink_b()
self.tb.connect(src, op)
self.tb.connect(op, dst)
self.tb.run()
result_data = dst.data()
self.assertComplexTuplesAlmostEqual(expected_result, result_data, 4)
if __name__ == '__main__':
gr_unittest.run(test_dpll_bb, "test_dpll_bb.xml")
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