boost_1_45_0/libs/iostreams/test/read_input_istream_test.hpp

// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
// (C) Copyright 2004-2007 Jonathan Turkanis
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)

// See http://www.boost.org/libs/iostreams for documentation.

#ifndef BOOST_IOSTREAMS_TEST_READ_INPUT_ISTREAM_HPP_INCLUDED
#define BOOST_IOSTREAMS_TEST_READ_INPUT_ISTREAM_HPP_INCLUDED

#include <fstream>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/test/test_tools.hpp>
#include "detail/temp_file.hpp"
#include "detail/verification.hpp"

void read_input_istream_test()
{
    using namespace std;
    using namespace boost;
    using namespace boost::iostreams;
    using namespace boost::iostreams::test;

    test_file test;      
    test_file test2;

    {
        test_file test2;
        ifstream src(test2.name().c_str());
        filtering_istream first(src, 0);
        ifstream second(test.name().c_str());
        BOOST_CHECK_MESSAGE(
            compare_streams_in_chars(first, second),
            "failed reading from filtering_istream based on an istream"
            "in chars with no buffer"
        );
    }

    {
        test_file test2;
        ifstream src(test2.name().c_str());
        filtering_istream first(src, 0);
        ifstream second(test.name().c_str());
        BOOST_CHECK_MESSAGE(
            compare_streams_in_chunks(first, second),
            "failed reading from filtering_istream based on an istream"
            "in chunks with no buffer"
        );
    }

    {
        test_file test2;
        ifstream src(test2.name().c_str());
        filtering_istream first(src);
        ifstream second(test.name().c_str());
        BOOST_CHECK_MESSAGE(
            compare_streams_in_chars(first, second),
            "failed reading from filtering_istream based on an istream"
            "in chars with large buffer"
        );
    }

    {
        test_file test2;
        ifstream src(test2.name().c_str());
        filtering_istream first(src);
        ifstream second(test.name().c_str());
        BOOST_CHECK_MESSAGE(
            compare_streams_in_chunks(first, second),
            "failed reading from filtering_istream based on an istream"
            "in chunks with large buffer"
        );
    }
}

#endif // #ifndef BOOST_IOSTREAMS_TEST_READ_INPUT_ISTREAM_HPP_INCLUDED