qa_noise.py

#!/usr/bin/env python
#
# Copyright 2007,2010,2012 Free Software Foundation, Inc.
# Copyright 2022 Marcus Müller
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#

from gnuradio import gr, gr_unittest, analog


class test_noise_source(gr_unittest.TestCase):
    def setUp(self):
        self.tb = gr.top_block()

    def tearDown(self):
        self.tb = None

    def test_001_instantiate(self):
        # Just confirm that we can instantiate a noise source
        analog.noise_source_f(analog.GR_GAUSSIAN, 10, 10)
        analog.noise_source_f(analog.GR_GAUSSIAN, 10, -10)
        # test large seeds
        analog.noise_source_f(analog.GR_GAUSSIAN, 10, -2**63)
        analog.noise_source_f(analog.GR_GAUSSIAN, 10, 2**64 - 1)

    def test_002_getters(self):
        # Test get methods
        set_type = analog.GR_GAUSSIAN
        set_ampl = 10
        op = analog.noise_source_f(set_type, set_ampl, 10)
        get_type = op.type()
        get_ampl = op.amplitude()

        self.assertEqual(get_type, set_type)
        self.assertEqual(get_ampl, set_ampl)


if __name__ == '__main__':
    gr_unittest.run(test_noise_source)