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#!/usr/bin/env python
#
# Copyright 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, blocks
import os
import tempfile
class test_file_source_sink(gr_unittest.TestCase):
def setUp (self):
os.environ['GR_CONF_CONTROLPORT_ON'] = 'False'
self.tb = gr.top_block ()
def tearDown (self):
self.tb = None
def test_001(self):
src_data = range(1000)
expected_result = range(1000)
snk2 = blocks.vector_sink_f()
with tempfile.NamedTemporaryFile() as temp:
src = blocks.vector_source_f(src_data)
snk = blocks.file_sink(gr.sizeof_float, temp.name)
snk.set_unbuffered(True)
src2 = blocks.file_source(gr.sizeof_float, temp.name)
self.tb.connect(src, snk)
self.tb.run()
self.tb.disconnect(src, snk)
self.tb.connect(src2, snk2)
self.tb.run()
result_data = snk2.data()
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
def test_descriptor_001(self):
src_data = range(1000)
expected_result = range(1000)
snk2 = blocks.vector_sink_f()
with tempfile.NamedTemporaryFile() as temp:
fhandle0 = open(temp.name, "wb")
fd0 = fhandle0.fileno()
src = blocks.vector_source_f(src_data)
snk = blocks.file_descriptor_sink(gr.sizeof_float, fd0)
self.tb.connect(src, snk)
self.tb.run()
os.fsync(fd0)
fhandle0.close()
fhandle1 = open(temp.name, "rb")
fd1 = fhandle1.fileno()
src2 = blocks.file_descriptor_source(gr.sizeof_float, fd1, False)
self.tb.disconnect(src, snk)
self.tb.connect(src2, snk2)
self.tb.run()
os.fsync(fd1)
fhandle1.close()
result_data = snk2.data()
self.assertFloatTuplesAlmostEqual(expected_result, result_data)
def test_file_source_can_seek_after_open(self):
src_data = range(1000)
with tempfile.NamedTemporaryFile() as temp:
src = blocks.vector_source_f(src_data)
snk = blocks.file_sink(gr.sizeof_float, temp.name)
snk.set_unbuffered(True)
self.tb.connect(src, snk)
self.tb.run()
source = blocks.file_source(gr.sizeof_float, temp.name)
self.assertTrue(source.seek(0, os.SEEK_SET))
if __name__ == '__main__':
gr_unittest.run(test_file_source_sink, "test_file_source_sink.xml")
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