#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 202013 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
from gnuradio import blocks

class qa_stream_to_tagged_stream (gr_unittest.TestCase):

    def setUp (self):
        self.tb = gr.top_block ()

    def tearDown (self):
        self.tb = None

    def test_001_t (self):
        src_data = (1, ) * 50
        packet_len = 10
        len_tag_key = 'packet_len'
        src = blocks.vector_source_f(src_data, False, 1)
        tagger = blocks.stream_to_tagged_stream(gr.sizeof_float, 1, packet_len, len_tag_key)
        sink = blocks.vector_sink_f()
        self.tb.connect(src, tagger, sink)
        self.tb.run ()
        self.assertEqual(sink.data(), src_data)
        tags = [gr.tag_to_python(x) for x in sink.tags()]
        tags = sorted([(x.offset, x.key, x.value) for x in tags])
        expected_tags = [(int(pos), 'packet_len', packet_len) for pos in range(0, 50, 10) ]
        self.assertEqual(tags, expected_tags)


if __name__ == '__main__':
    gr_unittest.run(qa_stream_to_tagged_stream, "qa_stream_to_tagged_stream.xml")

