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#!/usr/bin/env python
#
# Copyright 2008,2010,2013 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, blocks
import pmt
import math
def make_tag(key, value, offset, srcid=None):
tag = gr.tag_t()
tag.key = pmt.string_to_symbol(key)
tag.value = pmt.to_pmt(value)
tag.offset = offset
if srcid is not None:
tag.srcid = pmt.to_pmt(srcid)
return tag
def compare_tags(a, b):
return a.offset == b.offset and pmt.equal(a.key, b.key) and \
pmt.equal(a.value, b.value) and pmt.equal(a.srcid, b.srcid)
class test_vector_sink_source(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_001(self):
# Test that sink has data set in source for the simplest case
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
src = blocks.vector_source_f(src_data)
dst = blocks.vector_sink_f()
self.tb.connect(src, dst)
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)
def test_002(self):
# Test vectors (the gnuradio vector I/O type)
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
src = blocks.vector_source_f(src_data, False, 2)
dst = blocks.vector_sink_f(2)
self.tb.connect(src, dst)
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)
def test_003(self):
# Test that we can only make vectors (the I/O type) if the input
# vector has sufficient size
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
self.assertRaises(RuntimeError, lambda : blocks.vector_source_f(src_data, False, 3))
def test_004(self):
# Test sending and receiving tagged streams
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
src_tags = tuple([make_tag('key', 'val', 0, 'src')])
expected_tags = src_tags[:]
src = blocks.vector_source_f(src_data, repeat=False, tags=src_tags)
dst = blocks.vector_sink_f()
self.tb.connect(src, dst)
self.tb.run()
result_data = dst.data()
result_tags = dst.tags()
self.assertEqual(expected_result, result_data)
self.assertEqual(len(result_tags), 1)
self.assertTrue(compare_tags(expected_tags[0], result_tags[0]))
def test_005(self):
# Test that repeat works (with tagged streams)
length = 16
src_data = [float(x) for x in range(length)]
expected_result = tuple(src_data + src_data)
src_tags = tuple([make_tag('key', 'val', 0, 'src')])
expected_tags = tuple([make_tag('key', 'val', 0, 'src'),
make_tag('key', 'val', length, 'src')])
src = blocks.vector_source_f(src_data, repeat=True, tags=src_tags)
head = blocks.head(gr.sizeof_float, 2*length)
dst = blocks.vector_sink_f()
self.tb.connect(src, head, dst)
self.tb.run()
result_data = dst.data()
result_tags = dst.tags()
self.assertEqual(expected_result, result_data)
self.assertEqual(len(result_tags), 2)
self.assertTrue(compare_tags(expected_tags[0], result_tags[0]))
self.assertTrue(compare_tags(expected_tags[1], result_tags[1]))
def test_006(self):
# Test set_data
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
src = blocks.vector_source_f((3,1,4))
dst = blocks.vector_sink_f()
src.set_data(src_data)
self.tb.connect(src, dst)
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)
def test_007(self):
# Test set_repeat
src_data = [float(x) for x in range(16)]
expected_result = tuple(src_data)
src = blocks.vector_source_f(src_data, True)
dst = blocks.vector_sink_f()
src.set_repeat(False)
self.tb.connect(src, dst)
# will timeout if set_repeat does not work
self.tb.run()
result_data = dst.data()
self.assertEqual(expected_result, result_data)
if __name__ == '__main__':
gr_unittest.run(test_vector_sink_source, "test_vector_sink_source.xml")
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