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#!/usr/bin/env python
from gnuradio import gr, gr_unittest
from gnuradio import blocks
import gnuradio.dab as grdab
class qa_insert_null_symbol(gr_unittest.TestCase):
"""
@brief QA for Null symbol insertion.
This class implements a test bench to verify the corresponding C++ class.
"""
def setUp(self):
self.tb = gr.top_block()
def tearDown(self):
self.tb = None
def test_001_insert_null_symbol(self):
src_data0 = [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15]
src_data1 = [0,1,0,1,0]
expected_result = [1,2,3,0,0,0,0,0,4,5,6,7,8,9,0,0,0,0,0,10,11,12,13,14,15]
expected_result = [complex(x) for x in expected_result]
src0 = blocks.vector_source_c(src_data0)
src1 = blocks.vector_source_b(src_data1)
s2v = blocks.stream_to_vector(gr.sizeof_gr_complex, 3)
insert_null_symbol = grdab.insert_null_symbol(5,3)
dst = blocks.vector_sink_c()
self.tb.connect(src0, s2v, insert_null_symbol, dst)
self.tb.connect(src1, (insert_null_symbol,1))
self.tb.run()
result_data = dst.data()
# print expected_result
# print result_data
self.assertComplexTuplesAlmostEqual(expected_result, result_data, 6)
if __name__ == '__main__':
gr_unittest.main()
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