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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2021-2022 Daniel Estevez <daniel@destevez.net>
#
# This file is part of gr-satellites
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
from gnuradio import gr, blocks, gr_unittest
import numpy as np
import pmt
# bootstrap satellites module, even from build dir
try:
import python as satellites
except ImportError:
pass
else:
import sys
sys.modules['satellites'] = satellites
from satellites import fixedlen_to_pdu
from satellites.grtypes import byte_t
class qa_fixedlen_tagger(gr_unittest.TestCase):
def setUp(self):
self.syncword_tag = 'syncword'
self.packetlen_tag = 'packet_len'
self.packet_len = 100
self.data = np.arange(3000, dtype='uint8')
self.tag_positions = [50, 213, 217, 230, 1530, 1531]
tags = [gr.python_to_tag((j, pmt.intern(self.syncword_tag),
pmt.intern('sync'), pmt.intern('test_src')))
for j in self.tag_positions]
self.source = blocks.vector_source_b(self.data, False, 1, tags)
self.debug = blocks.message_debug()
self.fixedlen_to_pdu = fixedlen_to_pdu(
byte_t, self.syncword_tag, self.packet_len)
self.tb = gr.top_block()
self.tb.connect(self.source, self.fixedlen_to_pdu)
self.tb.msg_connect((self.fixedlen_to_pdu, 'pdus'),
(self.debug, 'store'))
def tearDown(self):
self.tb = None
def test_tagger(self):
"""Runs some data through Fixedlen to PDU and checks resulting PDUs"""
self.tb.start()
self.tb.wait()
self.assertEqual(self.debug.num_messages(), len(self.tag_positions),
'Unexpected number of PDUs')
for j, pos in enumerate(self.tag_positions):
pdu = np.array(pmt.u8vector_elements(
pmt.cdr(self.debug.get_message(j))), dtype='uint8')
expected = self.data[pos:pos+self.packet_len]
np.testing.assert_equal(pdu, expected,
'PDU values do not match expected')
if __name__ == '__main__':
gr_unittest.run(qa_fixedlen_tagger)
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