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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
# Copyright 2020 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 encode_rs, decode_rs
class qa_rs(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block()
self.dbg = blocks.message_debug()
def tearDown(self):
self.tb.msg_connect((self.encode, 'out'), (self.decode, 'in'))
self.tb.msg_connect((self.decode, 'out'), (self.dbg, 'store'))
pdu = pmt.cons(pmt.PMT_NIL,
pmt.init_u8vector(len(self.data), self.data))
self.encode.to_basic_block()._post(pmt.intern('in'), pdu)
self.encode.to_basic_block()._post(
pmt.intern('system'),
pmt.cons(pmt.intern('done'), pmt.from_long(1)))
self.tb.start()
self.tb.wait()
result = pmt.u8vector_elements(pmt.cdr(self.dbg.get_message(0)))
np.testing.assert_equal(self.data, result,
'Decoded data does not match encoder input')
self.tb = None
def test_conventional(self):
self.encode = encode_rs(False, 1)
self.decode = decode_rs(False, 1)
self.data = np.random.randint(0, 256, 223, dtype='uint8')
def test_dual(self):
self.encode = encode_rs(True, 1)
self.decode = decode_rs(True, 1)
self.data = np.random.randint(0, 256, 223, dtype='uint8')
def test_shortened(self):
self.encode = encode_rs(False, 1)
self.decode = decode_rs(False, 1)
self.data = np.random.randint(0, 256, 100, dtype='uint8')
def test_interleave(self):
interleave = 5
self.encode = encode_rs(False, interleave)
self.decode = decode_rs(False, interleave)
self.data = np.random.randint(0, 256, 150 * interleave, dtype='uint8')
def test_custom_rs(self):
self.encode = encode_rs(8, 0x11d, 1, 1, 16, 1)
self.decode = decode_rs(8, 0x11d, 1, 1, 16, 1)
self.data = np.random.randint(0, 256, 255 - 16, dtype='uint8')
if __name__ == '__main__':
gr_unittest.run(qa_rs)
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