83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
// (C) Copyright 2008 CodeRage, LLC (turkanis at coderage dot com)
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// (C) Copyright 2004-2007 Jonathan Turkanis
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt.)
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// See http://www.boost.org/libs/iostreams for documentation.
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#include "detail/filters.hpp" // Must come before operations.hpp for VC6.
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#include <boost/iostreams/categories.hpp>
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#include <boost/iostreams/constants.hpp>
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#include <boost/iostreams/device/null.hpp>
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#include <boost/iostreams/operations.hpp>
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#include <boost/test/test_tools.hpp>
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#include <boost/test/unit_test.hpp>
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using namespace std;
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using namespace boost::iostreams;
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using namespace boost::iostreams::test;
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using boost::unit_test::test_suite;
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struct optimally_buffered_filter {
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typedef char char_type;
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struct category
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: input_filter_tag,
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optimally_buffered_tag
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{ };
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std::streamsize optimal_buffer_size() const
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{ return default_filter_buffer_size + 1; }
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};
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void buffer_size_test()
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{
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// Test device buffer sizes.
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(null_source()) == default_device_buffer_size,
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"wrong buffer size for sourcer"
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);
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(null_sink()) == default_device_buffer_size,
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"wrong buffer size for sink"
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);
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// Test filter buffer sizes.
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(toupper_filter()) == default_filter_buffer_size,
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"wrong buffer size for input filter"
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);
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(tolower_filter()) == default_filter_buffer_size,
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"wrong buffer size for output filter"
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);
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(toupper_multichar_filter())
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==
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default_filter_buffer_size,
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"wrong buffer size for multi-character input filter"
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);
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(tolower_multichar_filter())
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==
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default_filter_buffer_size,
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"wrong buffer size for multi-character output filter"
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);
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// Test custom buffer size.
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BOOST_CHECK_MESSAGE(
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optimal_buffer_size(optimally_buffered_filter())
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==
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optimally_buffered_filter().optimal_buffer_size(),
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"wrong buffer size for multi-character output filter"
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);
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}
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test_suite* init_unit_test_suite(int, char* [])
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{
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test_suite* test = BOOST_TEST_SUITE("buffer_size test");
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test->add(BOOST_TEST_CASE(&buffer_size_test));
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return test;
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}
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