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#!/usr/bin/env python
#
# Copyright 2013 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
import time
from gnuradio import gr, gr_unittest, blocks
import pmt
class test_pdu(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_000(self):
# Just run some data through and make sure it doesn't puke.
src_data = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
src = blocks.pdu_to_tagged_stream(blocks.byte_t)
snk3 = blocks.tagged_stream_to_pdu(blocks.byte_t)
snk2 = blocks.vector_sink_b()
snk = blocks.tag_debug(1, "test")
snk.set_display(False)
dbg = blocks.message_debug()
# Test that the right number of ports exist.
pi = snk3.message_ports_in()
po = snk3.message_ports_out()
# system port is defined automatically
self.assertEqual(pmt.length(pi), 1)
self.assertEqual(pmt.length(po), 1)
self.tb.connect(src, snk)
self.tb.connect(src, snk2)
self.tb.connect(src, snk3)
self.tb.msg_connect(snk3, "pdus", dbg, "store")
# make our reference and message pmts
port = pmt.intern("pdus")
msg = pmt.cons(pmt.PMT_NIL, pmt.make_u8vector(16, 0xFF))
# post the message
src.to_basic_block()._post(port, msg)
src.to_basic_block()._post(
pmt.intern("system"), pmt.cons(
pmt.intern("done"), pmt.from_long(1)))
self.tb.start()
self.tb.wait()
# Get the vector of data from the vector sink
result_data = snk2.data()
# Get the vector of data from the message sink
# Convert the message PMT as a pair into its vector
result_msg = dbg.get_message(0)
msg_vec = pmt.cdr(result_msg)
# pmt.print(msg_vec)
# Convert the PMT vector into a Python list
msg_data = []
for i in range(16):
msg_data.append(pmt.u8vector_ref(msg_vec, i))
actual_data = 16 * [0xFF, ]
self.assertEqual(actual_data, list(result_data))
self.assertEqual(actual_data, msg_data)
def test_001(self):
# Test the overflow buffer in pdu_to_tagged_stream
src_data = [1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10.0]
src = blocks.pdu_to_tagged_stream(blocks.float_t)
snk = blocks.vector_sink_f()
self.tb.connect(src, snk)
port = pmt.intern("pdus")
msg = pmt.cons(pmt.PMT_NIL, pmt.init_f32vector(10, src_data))
src.to_basic_block()._post(port, msg)
src.to_basic_block()._post(
pmt.intern("system"), pmt.cons(
pmt.intern("done"), pmt.from_long(1)))
self.tb.start()
self.tb.wait()
self.assertEqual(src_data, list(snk.data()))
def test_002_tags_plus_data(self):
packet_len = 16
src_data = list(range(packet_len))
tag1 = gr.tag_t()
tag1.offset = 0
tag1.key = pmt.string_to_symbol('spam')
tag1.value = pmt.from_long(23)
tag2 = gr.tag_t()
tag2.offset = 10 # Must be < packet_len
tag2.key = pmt.string_to_symbol('eggs')
tag2.value = pmt.from_long(42)
src = blocks.vector_source_f(src_data, tags=(tag1, tag2))
s2ts = blocks.stream_to_tagged_stream(
gr.sizeof_float,
vlen=1,
packet_len=packet_len,
len_tag_key="packet_len")
ts2pdu = blocks.tagged_stream_to_pdu(blocks.float_t, "packet_len")
dbg = blocks.message_debug()
self.tb.connect(src, s2ts, ts2pdu)
self.tb.msg_connect(ts2pdu, "pdus", dbg, "store")
self.tb.start()
self.tb.wait()
result_msg = dbg.get_message(0)
metadata = pmt.to_python(pmt.car(result_msg))
vector = pmt.f32vector_elements(pmt.cdr(result_msg))
self.assertEqual(metadata, {'eggs': 42, 'spam': 23})
self.assertFloatTuplesAlmostEqual(tuple(vector), src_data)
if __name__ == '__main__':
gr_unittest.run(test_pdu)
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