#!/usr/bin/env python
#
# Copyright 2012 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 digital_swig as digital

class test_chunks_to_symbols(gr_unittest.TestCase):

    def setUp (self):
        self.tb = gr.top_block ()

    def tearDown (self):
        self.tb = None

    def test_bc_001(self):
        const = [ 1+0j, 0+1j,
                 -1+0j, 0-1j]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (1+0j, 0+1j, -1+0j, 0-1j,
                           0-1j, -1+0j, 0+1j, 1+0j)

        src = gr.vector_source_b(src_data)
        op = digital.chunks_to_symbols_bc(const)

        dst = gr.vector_sink_c()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

    def test_bf_002(self):
        const = [-3, -1, 1, 3]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (-3, -1, 1, 3,
                            3, 1, -1, -3)

        src = gr.vector_source_b(src_data)
        op = digital.chunks_to_symbols_bf(const)

        dst = gr.vector_sink_f()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

    def test_ic_003(self):
        const = [ 1+0j, 0+1j,
                 -1+0j, 0-1j]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (1+0j, 0+1j, -1+0j, 0-1j,
                           0-1j, -1+0j, 0+1j, 1+0j)

        src = gr.vector_source_i(src_data)
        op = digital.chunks_to_symbols_ic(const)

        dst = gr.vector_sink_c()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

    def test_if_004(self):
        const = [-3, -1, 1, 3]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (-3, -1, 1, 3,
                            3, 1, -1, -3)

        src = gr.vector_source_i(src_data)
        op = digital.chunks_to_symbols_if(const)

        dst = gr.vector_sink_f()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

    def test_sc_005(self):
        const = [ 1+0j, 0+1j,
                 -1+0j, 0-1j]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (1+0j, 0+1j, -1+0j, 0-1j,
                           0-1j, -1+0j, 0+1j, 1+0j)

        src = gr.vector_source_s(src_data)
        op = digital.chunks_to_symbols_sc(const)

        dst = gr.vector_sink_c()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

    def test_sf_006(self):
        const = [-3, -1, 1, 3]
        src_data = (0, 1, 2, 3, 3, 2, 1, 0)
        expected_result = (-3, -1, 1, 3,
                            3, 1, -1, -3)

        src = gr.vector_source_s(src_data)
        op = digital.chunks_to_symbols_sf(const)

        dst = gr.vector_sink_f()
        self.tb.connect(src, op)
        self.tb.connect(op, dst)
        self.tb.run()

        actual_result = dst.data()
        self.assertEqual(expected_result, actual_result)

if __name__ == '__main__':
    gr_unittest.run(test_chunks_to_symbols, "test_chunks_to_symbols.xml")