libs/iostreams/test/file_descriptor_test.cpp
// (C) Copyright Jonathan Turkanis 2004
// 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 <fstream>
#include <boost/iostreams/device/file_descriptor.hpp>
#include <boost/iostreams/stream.hpp>
#include <boost/test/test_tools.hpp>
#include <boost/test/unit_test.hpp>
#include "detail/temp_file.hpp"
#include "detail/verification.hpp"
using namespace boost;
using namespace boost::iostreams;
using namespace boost::iostreams::test;
using std::ifstream;
using boost::unit_test::test_suite;
void file_descriptor_test()
{
typedef stream<file_descriptor_source> fdistream;
typedef stream<file_descriptor_sink> fdostream;
typedef stream<file_descriptor> fdstream;
test_file test1;
test_file test2;
//--------------Test file_descriptor_source-------------------------------//
{
fdistream first(file_descriptor_source(test1.name()), 0);
ifstream second(test2.name().c_str());
BOOST_CHECK(first->is_open());
BOOST_CHECK_MESSAGE(
compare_streams_in_chars(first, second),
"failed reading from file_descriptor_source in chars with no buffer"
);
first->close();
BOOST_CHECK(!first->is_open());
}
{
fdistream first(file_descriptor_source(test1.name()), 0);
ifstream second(test2.name().c_str());
BOOST_CHECK(first->is_open());
BOOST_CHECK_MESSAGE(
compare_streams_in_chunks(first, second),
"failed reading from file_descriptor_source in chunks with no buffer"
);
first->close();
BOOST_CHECK(!first->is_open());
}
{
file_descriptor_source file(test1.name());
fdistream first(file);
ifstream second(test2.name().c_str());
BOOST_CHECK(first->is_open());
BOOST_CHECK_MESSAGE(
compare_streams_in_chars(first, second),
"failed reading from file_descriptor_source in chars with buffer"
);
first->close();
BOOST_CHECK(!first->is_open());
}
{
file_descriptor_source file(test1.name());
fdistream first(file);
ifstream second(test2.name().c_str());
BOOST_CHECK(first->is_open());
BOOST_CHECK_MESSAGE(
compare_streams_in_chunks(first, second),
"failed reading from file_descriptor_source in chunks with buffer"
);
first->close();
BOOST_CHECK(!first->is_open());
}
//--------------Test file_descriptor_sink---------------------------------//
{
temp_file temp;
file_descriptor_sink file(temp.name(), BOOST_IOS::trunc);
fdostream out(file, 0);
BOOST_CHECK(out->is_open());
write_data_in_chars(out);
out.close();
BOOST_CHECK_MESSAGE(
compare_files(test1.name(), temp.name()),
"failed writing to file_descriptor_sink in chars with no buffer"
);
file.close();
BOOST_CHECK(!file.is_open());
}
{
temp_file temp;
file_descriptor_sink file(temp.name(), BOOST_IOS::trunc);
fdostream out(file, 0);
BOOST_CHECK(out->is_open());
write_data_in_chunks(out);
out.close();
BOOST_CHECK_MESSAGE(
compare_files(test1.name(), temp.name()),
"failed writing to file_descriptor_sink in chunks with no buffer"
);
file.close();
BOOST_CHECK(!file.is_open());
}
{
temp_file temp;
file_descriptor_sink file(temp.name(), BOOST_IOS::trunc);
fdostream out(file);
BOOST_CHECK(out->is_open());
write_data_in_chars(out);
out.close();
BOOST_CHECK_MESSAGE(
compare_files(test1.name(), temp.name()),
"failed writing to file_descriptor_sink in chars with buffer"
);
file.close();
BOOST_CHECK(!file.is_open());
}
{
temp_file temp;
file_descriptor_sink file(temp.name(), BOOST_IOS::trunc);
fdostream out(file);
BOOST_CHECK(out->is_open());
write_data_in_chunks(out);
out.close();
BOOST_CHECK_MESSAGE(
compare_files(test1.name(), temp.name()),
"failed writing to file_descriptor_sink in chunks with buffer"
);
file.close();
BOOST_CHECK(!file.is_open());
}
//--------------Test file_descriptor--------------------------------------//
{
temp_file temp;
file_descriptor file( temp.name(),
BOOST_IOS::in |
BOOST_IOS::out |
BOOST_IOS::trunc |
BOOST_IOS::binary );
fdstream io(file, BUFSIZ);
BOOST_CHECK_MESSAGE(
test_seekable_in_chars(io),
"failed seeking within a file_descriptor, in chars"
);
}
{
temp_file temp;
file_descriptor file( temp.name(),
BOOST_IOS::in |
BOOST_IOS::out |
BOOST_IOS::trunc |
BOOST_IOS::binary );
fdstream io(file, BUFSIZ);
BOOST_CHECK_MESSAGE(
test_seekable_in_chunks(io),
"failed seeking within a file_descriptor, in chunks"
);
}
}
test_suite* init_unit_test_suite(int, char* [])
{
test_suite* test = BOOST_TEST_SUITE("file_descriptor test");
test->add(BOOST_TEST_CASE(&file_descriptor_test));
return test;
}