#!/usr/bin/perl -w

# Copyright 2009, 2010, 2011 Kevin Ryde

# This file is part of Chart.
#
# Chart 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.
#
# Chart 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 Chart.  If not, see <http://www.gnu.org/licenses/>.


use 5.008;
use strict;
use warnings;
use Test::More tests => 1;

use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings() }

require App::Chart::Gtk2::IndicatorModel;

#-----------------------------------------------------------------------------
# visible_func_hide_empty_parents()

{
  my $func = Gtk2::Ex::TreeModelFilterBits::visible_func_hide_empty_parents
    (sub {});
  Scalar::Util::weaken ($func);
  is ($func, undef,
      'visible_func_hide_empty_parents() destroyed by weakening');
}

exit 0;