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#!/usr/bin/env python
#
# Copyright 2007,2010,2013 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 numpy
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
class test_skiphead(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
self.src_data = [int(x) for x in range(65536)]
def tearDown(self):
self.tb = None
def test_skip_0(self):
skip_cnt = 0
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_1(self):
skip_cnt = 1
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_1023(self):
skip_cnt = 1023
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_6339(self):
skip_cnt = 6339
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_12678(self):
skip_cnt = 12678
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_all(self):
skip_cnt = len(self.src_data)
expected_result = tuple(self.src_data[skip_cnt:])
src1 = blocks.vector_source_i(self.src_data)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
def test_skip_tags(self):
skip_cnt = 25
expected_result = tuple(self.src_data[skip_cnt:])
src_tags = tuple([make_tag('foo', 'bar', 1, 'src'),
make_tag('baz', 'qux', 50, 'src')])
src1 = blocks.vector_source_i(self.src_data, tags=src_tags)
op = blocks.skiphead(gr.sizeof_int, skip_cnt)
dst1 = blocks.vector_sink_i()
self.tb.connect(src1, op, dst1)
self.tb.run()
dst_data = dst1.data()
self.assertEqual(expected_result, dst_data)
self.assertEqual(dst1.tags()[0].offset, 25, "Tag offset is incorrect")
self.assertEqual(len(dst1.tags()), 1, "Wrong number of tags received")
self.assertEqual(pmt.to_python(
dst1.tags()[0].key), "baz", "Tag key is incorrect")
self.assertEqual(pmt.to_python(
dst1.tags()[0].value), "qux", "Tag value is incorrect")
if __name__ == '__main__':
gr_unittest.run(test_skiphead, "test_skiphead.xml")
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