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#!/usr/bin/env python
#
# Copyright 2004,2007,2010,2013 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr, gr_unittest, blocks
import pmt
class test_delay(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_000(self):
delta_t = 0
tb = self.tb
src_data = [float(x) for x in range(0, 100)]
expected_result = list(delta_t*[0.0] + src_data)
src = blocks.vector_source_f(src_data)
op = blocks.delay(gr.sizeof_float, delta_t)
dst = blocks.vector_sink_f()
tb.connect(src, op, dst)
tb.run()
dst_data = dst.data()
self.assertEqual(expected_result, dst_data)
def test_010(self):
delta_t = 10
tb = self.tb
src_data = [float(x) for x in range(0, 100)]
expected_result = list(delta_t*[0.0] + src_data)
src = blocks.vector_source_f(src_data)
op = blocks.delay(gr.sizeof_float, delta_t)
dst = blocks.vector_sink_f()
tb.connect(src, op, dst)
tb.run()
dst_data = dst.data()
self.assertEqual(expected_result, dst_data)
def test_020(self):
tb = self.tb
vector_sink = blocks.vector_sink_f(1)
ref_sink = blocks.vector_sink_f(1)
tags_strobe = blocks.tags_strobe(gr.sizeof_float*1, pmt.intern("TEST"), 100, pmt.intern("strobe"))
head = blocks.head(gr.sizeof_float*1, 10**5)
delay = blocks.delay(gr.sizeof_float*1, 100)
tb.connect((delay, 0), (head, 0))
tb.connect((head, 0), (vector_sink, 0))
tb.connect((tags_strobe, 0), (delay, 0))
tb.connect((tags_strobe, 0), (ref_sink, 0))
tb.run()
tags = vector_sink.tags()
self.assertNotEqual(len(tags), 0)
lastoffset = tags[0].offset - 100
for tag in tags:
newoffset = tag.offset
self.assertEqual(newoffset, lastoffset + 100)
lastoffset = newoffset
if __name__ == '__main__':
gr_unittest.run(test_delay, "test_delay.xml")
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