iostreams/test/stream_offset_32bit_test.cpp

52 lines
1.6 KiB
C++

/*
* 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.
* File: libs/iostreams/test/stream_offset_32bit_test.cpp
* Date: Sun Dec 23 21:11:23 MST 2007
* Copyright: 2007-2008 CodeRage, LLC
* Author: Jonathan Turkanis
* Contact: turkanis at coderage dot com
*
* Tests the functions defined in the header "boost/iostreams/positioning.hpp"
* with small (32-bit) file offsets.
*/
#include <boost/iostreams/positioning.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <boost/type_traits/is_integral.hpp>
using namespace std;
using namespace boost;
using namespace boost::iostreams;
using boost::unit_test::test_suite;
void stream_offset_32bit_test()
{
stream_offset small_file = 1000000;
stream_offset off = -small_file;
streampos pos = offset_to_position(off);
while (off < small_file)
{
BOOST_CHECK(off == position_to_offset(offset_to_position(off)));
BOOST_CHECK(pos == offset_to_position(position_to_offset(pos)));
off += 20000;
pos += 20000;
BOOST_CHECK(off == position_to_offset(offset_to_position(off)));
BOOST_CHECK(pos == offset_to_position(position_to_offset(pos)));
off -= 10000;
pos -= 10000;
}
}
test_suite* init_unit_test_suite(int, char* [])
{
test_suite* test = BOOST_TEST_SUITE("stream_offset 32-bit test");
test->add(BOOST_TEST_CASE(&stream_offset_32bit_test));
return test;
}