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// (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.
#include <algorithm> // equal.
#include <fstream>
#include <boost/iostreams/device/back_inserter.hpp>
#include <boost/iostreams/device/file.hpp>
#include <boost/iostreams/device/null.hpp>
#include <boost/iostreams/filtering_stream.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/iostreams/operations.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include "detail/filters.hpp"
#include "detail/temp_file.hpp"
#include "detail/verification.hpp"
using namespace std;
using namespace boost;
using namespace boost::iostreams;
using namespace boost::iostreams::test;
using boost::unit_test::test_suite;
void flush_test()
{
{
stream_buffer<null_sink> null;
null.open(null_sink());
BOOST_CHECK_MESSAGE(
iostreams::flush(null),
"failed flushing stream_buffer"
);
BOOST_CHECK_MESSAGE(
null.strict_sync(),
"failed strict-syncing stream_buffer with "
"non-flushable resource"
);
}
{
stream<null_sink> null;
null.open(null_sink());
BOOST_CHECK_MESSAGE(
iostreams::flush(null),
"failed flushing stream"
);
BOOST_CHECK_MESSAGE(
null.strict_sync(),
"failed strict-syncing stream with "
"non-flushable resource"
);
}
{
filtering_ostream null;
null.push(null_sink());
BOOST_CHECK_MESSAGE(
iostreams::flush(null),
"failed flushing filtering_ostream"
);
BOOST_CHECK_MESSAGE(
null.strict_sync(),
"failed strict-syncing filtering_ostream with "
"non-flushable resource"
);
}
{
filtering_ostream null;
null.push(tolower_filter());
null.push(null_sink());
BOOST_CHECK_MESSAGE(
iostreams::flush(null),
"failed flushing filtering_ostream with non-flushable filter"
);
BOOST_CHECK_MESSAGE(
!null.strict_sync(),
"strict-syncing filtering_ostream with "
"non-flushable filter succeeded"
);
}
{
vector<char> dest1;
vector<char> dest2;
filtering_ostream out;
out.set_auto_close(false);
out.push(flushable_output_filter());
// Write to dest1.
out.push(iostreams::back_inserter(dest1));
write_data_in_chunks(out);
out.flush();
// Write to dest2.
out.pop();
out.push(iostreams::back_inserter(dest2));
write_data_in_chunks(out);
out.flush();
BOOST_CHECK_MESSAGE(
dest1.size() == dest2.size() &&
std::equal(dest1.begin(), dest1.end(), dest2.begin()),
"failed flush filtering_ostream with auto_close disabled"
);
}
{
vector<char> dest1;
vector<char> dest2;
filtering_ostream out;
out.set_auto_close(false);
out.push(flushable_output_filter());
out.push(flushable_output_filter());
// Write to dest1.
out.push(iostreams::back_inserter(dest1));
write_data_in_chunks(out);
out.flush();
// Write to dest2.
out.pop();
out.push(iostreams::back_inserter(dest2));
write_data_in_chunks(out);
out.flush();
BOOST_CHECK_MESSAGE(
dest1.size() == dest2.size() &&
std::equal(dest1.begin(), dest1.end(), dest2.begin()),
"failed flush filtering_ostream with two flushable filters "
"with auto_close disabled"
);
}
}
test_suite* init_unit_test_suite(int, char* [])
{
test_suite* test = BOOST_TEST_SUITE("flush test");
test->add(BOOST_TEST_CASE(&flush_test));
return test;
}
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