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/* vim: set sw=4 sts=4 et foldmethod=syntax : */

/*
 * Copyright (c) 2008, 2011 Ciaran McCreesh
 *
 * This file is part of the Paludis package manager. Paludis is free software;
 * you can redistribute it and/or modify it under the terms of the GNU General
 * Public License version 2, as published by the Free Software Foundation.
 *
 * Paludis 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
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include <paludis/util/tail_output_stream.hh>
#include <paludis/util/join.hh>
#include <paludis/util/wrapped_forward_iterator.hh>

#include <gtest/gtest.h>

using namespace paludis;

TEST(TailOutputStream, Works)
{
    TailOutputStream s(5);

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(false));
        EXPECT_EQ("", join(a->begin(), a->end(), "/"));
    }

    s << "one" << std::endl;

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(false));
        EXPECT_EQ("one", join(a->begin(), a->end(), "/"));
    }

    s << "two" << std::endl;
    s << "three" << std::endl;
    s << "four" << std::endl;
    s << "five" << std::endl;

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(false));
        EXPECT_EQ("one/two/three/four/five", join(a->begin(), a->end(), "/"));
    }

    s << "six" << std::endl;

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(true));
        EXPECT_EQ("two/three/four/five/six", join(a->begin(), a->end(), "/"));
    }

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(false));
        EXPECT_EQ("", join(a->begin(), a->end(), "/"));
    }

    s << "seven" << std::endl;
    s << "eight" << std::endl;

    {
        std::shared_ptr<const Sequence<std::string> > a(s.tail(false));
        EXPECT_EQ("seven/eight", join(a->begin(), a->end(), "/"));
    }
}