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#!/usr/bin/env python
#
# Copyright 2006,2007,2010,2013 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# GNU Radio is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
#
# GNU Radio is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with GNU Radio; see the file COPYING. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.
#
from gnuradio import gr, gr_unittest
import blocks_swig as blocks
import random
import struct
"""
Note: There has been an issue with this block in the past, see Issue
#199. This test is being enabled only on the 'next' branch for version
v3.7 for now. TWR
"""
class counter(gr.feval_dd):
def __init__(self, step_size=1):
gr.feval_dd.__init__(self)
self.step_size = step_size
self.count = 0
def eval(self, input):
#print "eval: self.count =", self.count
t = self.count
self.count = self.count + self.step_size
return t
class counter3(gr.feval_dd):
def __init__(self, f, step_size):
gr.feval_dd.__init__(self)
self.f = f
self.step_size = step_size
self.count = 0
def eval(self, input):
try:
#print "eval: self.count =", self.count
t = self.count
self.count = self.count + self.step_size
self.f(self.count)
except Exception, e:
print "Exception: ", e
return t
def foobar3(new_t):
#print "foobar3: new_t =", new_t
pass
class counter4(gr.feval_dd):
def __init__(self, obj_instance, step_size):
gr.feval_dd.__init__(self)
self.obj_instance = obj_instance
self.step_size = step_size
self.count = 0
def eval(self, input):
try:
#print "eval: self.count =", self.count
t = self.count
self.count = self.count + self.step_size
self.obj_instance.foobar4(self.count)
except Exception, e:
print "Exception: ", e
return t
class parse_msg(object):
def __init__(self, msg):
self.center_freq = msg.arg1()
self.vlen = int(msg.arg2())
assert(msg.length() == self.vlen * gr.sizeof_float)
self.data = struct.unpack('%df' % (self.vlen,), msg.to_string())
class test_bin_statistics(gr_unittest.TestCase):
def setUp(self):
self.tb = gr.top_block ()
def tearDown(self):
self.tb = None
def test_001(self):
vlen = 4
tune = counter(1)
tune_delay = 0
dwell_delay = 1
msgq = gr.msg_queue()
src_data = tuple([float(x) for x in
( 1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16
)])
expected_results = tuple([float(x) for x in
( 1, 2, 3, 4,
5, 6, 7, 8,
9, 10, 11, 12,
13, 14, 15, 16
)])
src = gr.vector_source_f(src_data, False)
s2v = blocks.stream_to_vector(gr.sizeof_float, vlen)
stats = blocks.bin_statistics_f(vlen, msgq, tune, tune_delay, dwell_delay)
self.tb.connect(src, s2v, stats)
self.tb.run()
self.assertEqual(4, msgq.count())
for i in range(4):
m = parse_msg(msgq.delete_head())
#print "m =", m.center_freq, m.data
self.assertEqual(expected_results[vlen*i:vlen*i + vlen], m.data)
def test_002(self):
vlen = 4
tune = counter(1)
tune_delay = 1
dwell_delay = 2
msgq = gr.msg_queue()
src_data = tuple([float(x) for x in
( 1, 2, 3, 4,
9, 6, 11, 8,
5, 10, 7, 12,
13, 14, 15, 16
)])
expected_results = tuple([float(x) for x in
( 9, 10, 11, 12)])
src = gr.vector_source_f(src_data, False)
s2v = blocks.stream_to_vector(gr.sizeof_float, vlen)
stats = blocks.bin_statistics_f(vlen, msgq, tune, tune_delay, dwell_delay)
self.tb.connect(src, s2v, stats)
self.tb.run()
self.assertEqual(1, msgq.count())
for i in range(1):
m = parse_msg(msgq.delete_head())
#print "m =", m.center_freq, m.data
self.assertEqual(expected_results[vlen*i:vlen*i + vlen], m.data)
def test_003(self):
vlen = 4
tune = counter3(foobar3, 1)
tune_delay = 1
dwell_delay = 2
msgq = gr.msg_queue()
src_data = tuple([float(x) for x in
( 1, 2, 3, 4,
9, 6, 11, 8,
5, 10, 7, 12,
13, 14, 15, 16
)])
expected_results = tuple([float(x) for x in
( 9, 10, 11, 12)])
src = gr.vector_source_f(src_data, False)
s2v = blocks.stream_to_vector(gr.sizeof_float, vlen)
stats = blocks.bin_statistics_f(vlen, msgq, tune, tune_delay, dwell_delay)
self.tb.connect(src, s2v, stats)
self.tb.run()
self.assertEqual(1, msgq.count())
for i in range(1):
m = parse_msg(msgq.delete_head())
#print "m =", m.center_freq, m.data
self.assertEqual(expected_results[vlen*i:vlen*i + vlen], m.data)
def foobar4(self, new_t):
#print "foobar4: new_t =", new_t
pass
def test_004(self):
vlen = 4
tune = counter4(self, 1)
tune_delay = 1
dwell_delay = 2
msgq = gr.msg_queue()
src_data = tuple([float(x) for x in
( 1, 2, 3, 4,
9, 6, 11, 8,
5, 10, 7, 12,
13, 14, 15, 16
)])
expected_results = tuple([float(x) for x in
( 9, 10, 11, 12)])
src = gr.vector_source_f(src_data, False)
s2v = blocks.stream_to_vector(gr.sizeof_float, vlen)
stats = blocks.bin_statistics_f(vlen, msgq, tune, tune_delay, dwell_delay)
self.tb.connect(src, s2v, stats)
self.tb.run()
self.assertEqual(1, msgq.count())
for i in range(1):
m = parse_msg(msgq.delete_head())
#print "m =", m.center_freq, m.data
self.assertEqual(expected_results[vlen*i:vlen*i + vlen], m.data)
if __name__ == '__main__':
gr_unittest.run(test_bin_statistics, "test_bin_statistics.xml")
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