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#!/usr/bin/env python
#
# Copyright 2013 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 blocks_swig as blocks
import math
class test_transcendental(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_01(self):
tb = self.tb
data = 100*[0,]
expected_result = 100*[1,]
src = gr.vector_source_f(data, False)
op = blocks.transcendental("cos", "float")
dst = gr.vector_sink_f()
tb.connect(src, op)
tb.connect(op, dst)
tb.run()
dst_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, dst_data, 5)
def test_02(self):
tb = self.tb
data = 100*[3,]
expected_result = 100*[math.log10(3),]
src = gr.vector_source_f(data, False)
op = blocks.transcendental("log10", "float")
dst = gr.vector_sink_f()
tb.connect(src, op)
tb.connect(op, dst)
tb.run()
dst_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, dst_data, 5)
def test_03(self):
tb = self.tb
data = 100*[3,]
expected_result = 100*[math.tanh(3),]
src = gr.vector_source_f(data, False)
op = blocks.transcendental("tanh", "float")
dst = gr.vector_sink_f()
tb.connect(src, op)
tb.connect(op, dst)
tb.run()
dst_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, dst_data, 5)
if __name__ == '__main__':
gr_unittest.run(test_transcendental, "test_transcendental.xml")
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