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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_estimate_sample_rate(gr_unittest.TestCase):
"""
@brief Module test for the sample rate estimation block.
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_estimate_sample_rate_ff(self):
src_data = [0,1,0,1,0,0,0,0,1,0,1,1]
expected_result = [ 7./3.*x for x in [3,3,3,2,2,2,2,2,5,5,2,1]]
src = blocks.vector_source_b(src_data)
estimate_sample_rate = grdab.estimate_sample_rate_bf(7,3)
dst = blocks.vector_sink_f()
self.tb.connect(src, estimate_sample_rate)
self.tb.connect(estimate_sample_rate, dst)
self.tb.run()
result_data = dst.data()
self.assertFloatTuplesAlmostEqual(expected_result, result_data, 5)
if __name__ == '__main__':
gr_unittest.main()
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