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// (C) Copyright Jonathan Turkanis 2005
// 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.
#include <boost/iostreams/detail/ios.hpp>
#include <boost/iostreams/positioning.hpp>
#include <boost/integer_traits.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include <iostream>
using namespace std;
using namespace boost;
using namespace boost::iostreams;
using boost::unit_test::test_suite;
//void extrema_test_test()
//{
// stream_offset minoff = integer_traits<stream_offset>::const_min;
// stream_offset maxoff = integer_traits<stream_offset>::const_max;
//
// BOOST_CHECK(minoff == position_to_offset(offset_to_position(minoff)));
// BOOST_CHECK(0 == position_to_offset(offset_to_position(0)));
// BOOST_CHECK(maxoff == position_to_offset(offset_to_position(maxoff)));
//}
void large_file_test()
{
stream_offset large_file = 100 * 1024 * 1024 * 1024; // 100GB.
stream_offset first = -large_file - (-large_file) % 10000000;
stream_offset last = large_file - large_file % 10000000;
for (stream_offset off = first; off < last; off += 10000000)
{
BOOST_CHECK(off == position_to_offset(offset_to_position(off)));
}
}
void small_file_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("positioning test");
//test->add(BOOST_TEST_CASE(&extrema_test_test));
test->add(BOOST_TEST_CASE(&large_file_test));
test->add(BOOST_TEST_CASE(&small_file_test));
return test;
}
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