test_tools.cpp

boost库提供标准的C++ API 配合dev c++使用,功能更加强大

        return res;
    }

    void            check_and_fill( extended_predicate_value& res )
    {
        if( !res.p_predicate_value.get() )
            *(res.p_message) << "Output content: \"" << m_synced_string << '\"';
    }
};

//____________________________________________________________________________//

output_test_stream::output_test_stream( std::string const& pattern_file_name, bool match_or_save )
: m_pimpl( new Impl )
{
    if( !pattern_file_name.empty() )
        m_pimpl->m_pattern_to_match_or_save.open( pattern_file_name.c_str(), match_or_save ? std::ios::in : std::ios::out );

    m_pimpl->m_match_or_save = match_or_save;
}

//____________________________________________________________________________//

output_test_stream::output_test_stream( c_string_literal pattern_file_name, bool match_or_save )
: m_pimpl( new Impl )
{
    if( pattern_file_name && pattern_file_name[0] != '\0' )
        m_pimpl->m_pattern_to_match_or_save.open( pattern_file_name, match_or_save ? std::ios::in : std::ios::out );

    m_pimpl->m_match_or_save = match_or_save;
}

//____________________________________________________________________________//

output_test_stream::~output_test_stream()
{
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::is_empty( bool flush_stream )
{
    sync();

    result_type res( m_pimpl->m_synced_string.empty() );

    m_pimpl->check_and_fill( res );

    if( flush_stream )
        flush();

    return res;
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::check_length( std::size_t length_, bool flush_stream )
{
    sync();

    result_type res( m_pimpl->m_synced_string.length() == length_ );

    m_pimpl->check_and_fill( res );

    if( flush_stream )
        flush();

    return res;
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::is_equal( c_string_literal arg, bool flush_stream )
{
    sync();

    result_type res( m_pimpl->m_synced_string == arg );

    m_pimpl->check_and_fill( res );

    if( flush_stream )
        flush();

    return res;
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::is_equal( std::string const& arg, bool flush_stream )
{
    sync();

    result_type res( m_pimpl->m_synced_string == arg );

    m_pimpl->check_and_fill( res );

    if( flush_stream )
        flush();

    return res;
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::is_equal( c_string_literal arg, std::size_t n, bool flush_stream )
{
    sync();

    result_type res( m_pimpl->m_synced_string == std::string( arg, n ) );

    m_pimpl->check_and_fill( res );

    if( flush_stream )
        flush();

    return res;
}

//____________________________________________________________________________//

extended_predicate_value
output_test_stream::match_pattern( bool flush_stream )
{
    sync();

    result_type result( true );

    if( !m_pimpl->m_pattern_to_match_or_save.is_open() ) {
        result = false;
        *(result.p_message) << "Couldn't open pattern file for " 
            << ( m_pimpl->m_match_or_save ? "reading" : "writing");
    }
    else {
        if( m_pimpl->m_match_or_save ) {
            for ( std::string::size_type i = 0; i < m_pimpl->m_synced_string.length(); ++i ) {
                char c = m_pimpl->get_char();

                result = !m_pimpl->m_pattern_to_match_or_save.fail() && 
                         !m_pimpl->m_pattern_to_match_or_save.eof() && 
                         (m_pimpl->m_synced_string[i] == c);

                if( !result ) {
                    std::string::size_type suffix_size  = std::min( m_pimpl->m_synced_string.length() - i,
                                                                    static_cast<std::string::size_type>(5) );

                    // try to log area around the mismatch 
                    *(result.p_message) << "Mismatch at position " << i << '\n'
                        << "..." << m_pimpl->m_synced_string.substr( i, suffix_size ) << "..." << '\n'
                        << "..." << c;

                    std::string::size_type counter = suffix_size;
                    while( --counter ) {
                        char c = m_pimpl->get_char();

                        if( m_pimpl->m_pattern_to_match_or_save.fail() || 
                            m_pimpl->m_pattern_to_match_or_save.eof() )
                            break;

                        *(result.p_message) << c;
                    }

                    *(result.p_message) << "...";

                    // skip rest of the bytes. May help for further matching
                    m_pimpl->m_pattern_to_match_or_save.ignore( m_pimpl->m_synced_string.length() - i - suffix_size);
                    break;
                }
            }
        }
        else {
            m_pimpl->m_pattern_to_match_or_save.write( m_pimpl->m_synced_string.c_str(), 
                                                       static_cast<std::streamsize>( m_pimpl->m_synced_string.length() ) );
            m_pimpl->m_pattern_to_match_or_save.flush();
        }
    }

    if( flush_stream )
        flush();

    return result;
}

//____________________________________________________________________________//

void
output_test_stream::flush()
{
    m_pimpl->m_synced_string.erase();

#ifndef BOOST_NO_STRINGSTREAM
    str( std::string() );
#else
    seekp( 0, std::ios::beg );
#endif
}

//____________________________________________________________________________//

std::size_t
output_test_stream::length()
{
    sync();

    return m_pimpl->m_synced_string.length();
}

//____________________________________________________________________________//

void
output_test_stream::sync()
{
#ifdef BOOST_NO_STRINGSTREAM
    m_pimpl->m_synced_string.assign( str(), pcount() );
    freeze( false );
#else
    m_pimpl->m_synced_string = str();
#endif
}

//____________________________________________________________________________//

} // namespace test_toolbox

} // namespace boost

// ***************************************************************************
//  Revision History :
//  
//  $Log: test_tools.cpp,v $
//  Revision 1.25  2003/12/01 00:42:37  rogeeff
//  prerelease cleaning
//

// ***************************************************************************

// EOF