diff --git a/ndnboost/test/impl/unit_test_log.ipp b/ndnboost/test/impl/unit_test_log.ipp
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+++ b/ndnboost/test/impl/unit_test_log.ipp
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+//  (C) Copyright Gennadiy Rozental 2005-2008.
+//  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/test for the library home page.
+//
+//  File        : $RCSfile$
+//
+//  Version     : $Revision: 57992 $
+//
+//  Description : implemets Unit Test Log
+// ***************************************************************************
+
+#ifndef BOOST_TEST_UNIT_TEST_LOG_IPP_012205GER
+#define BOOST_TEST_UNIT_TEST_LOG_IPP_012205GER
+
+// Boost.Test
+#include <ndnboost/test/unit_test_log.hpp>
+#include <ndnboost/test/unit_test_log_formatter.hpp>
+#include <ndnboost/test/unit_test_suite_impl.hpp>
+#include <ndnboost/test/execution_monitor.hpp>
+
+#include <ndnboost/test/detail/unit_test_parameters.hpp>
+
+#include <ndnboost/test/utils/basic_cstring/compare.hpp>
+
+#include <ndnboost/test/output/compiler_log_formatter.hpp>
+#include <ndnboost/test/output/xml_log_formatter.hpp>
+
+// Boost
+#include <ndnboost/scoped_ptr.hpp>
+#include <ndnboost/io/ios_state.hpp>
+typedef ::ndnboost::io::ios_base_all_saver io_saver_type;
+
+#include <ndnboost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace ndnboost {
+
+namespace unit_test {
+
+// ************************************************************************** //
+// **************             entry_value_collector            ************** //
+// ************************************************************************** //
+
+namespace ut_detail {
+
+entry_value_collector const&
+entry_value_collector::operator<<( lazy_ostream const& v ) const
+{
+    unit_test_log << v;
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+entry_value_collector const& 
+entry_value_collector::operator<<( const_string v ) const
+{
+    unit_test_log << v;
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+entry_value_collector::~entry_value_collector()
+{
+    if( m_last )
+        unit_test_log << log::end();
+}
+
+//____________________________________________________________________________//
+
+} // namespace ut_detail
+
+// ************************************************************************** //
+// **************                 unit_test_log                ************** //
+// ************************************************************************** //
+
+namespace {
+
+struct unit_test_log_impl {
+    // Constructor
+    unit_test_log_impl()
+    : m_stream( runtime_config::log_sink() )
+    , m_stream_state_saver( new io_saver_type( *m_stream ) )
+    , m_threshold_level( log_all_errors )
+    , m_log_formatter( new output::compiler_log_formatter )
+    {
+    }
+
+    // log data
+    typedef scoped_ptr<unit_test_log_formatter> formatter_ptr;
+    typedef scoped_ptr<io_saver_type>           saver_ptr;
+
+    std::ostream*       m_stream;
+    saver_ptr           m_stream_state_saver;
+    log_level           m_threshold_level;
+    formatter_ptr       m_log_formatter;
+
+    // entry data
+    bool                m_entry_in_progress;
+    bool                m_entry_started;
+    log_entry_data      m_entry_data;
+
+    // check point data
+    log_checkpoint_data m_checkpoint_data;
+
+    // helper functions
+    std::ostream&       stream()            { return *m_stream; }
+    void                set_checkpoint( const_string file, std::size_t line_num, const_string msg )
+    {
+        assign_op( m_checkpoint_data.m_message, msg, 0 );
+        m_checkpoint_data.m_file_name    = file;
+        m_checkpoint_data.m_line_num    = line_num;
+    }
+};
+
+unit_test_log_impl& s_log_impl() { static unit_test_log_impl the_inst; return the_inst; }
+
+} // local namespace
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_start( counter_t test_cases_amount )
+{
+    if( s_log_impl().m_threshold_level == log_nothing )
+        return;
+
+    s_log_impl().m_log_formatter->log_start( s_log_impl().stream(), test_cases_amount );
+
+    if( runtime_config::show_build_info() )
+        s_log_impl().m_log_formatter->log_build_info( s_log_impl().stream() );
+
+    s_log_impl().m_entry_in_progress = false;
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_finish()
+{
+    if( s_log_impl().m_threshold_level == log_nothing )
+        return;
+
+    s_log_impl().m_log_formatter->log_finish( s_log_impl().stream() );
+
+    s_log_impl().stream().flush();
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_aborted()
+{
+    BOOST_TEST_LOG_ENTRY( log_messages ) << "Test is aborted";
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_unit_start( test_unit const& tu )
+{
+    if( s_log_impl().m_threshold_level > log_test_units )
+        return;
+
+    if( s_log_impl().m_entry_in_progress )
+        *this << log::end();
+
+    s_log_impl().m_log_formatter->test_unit_start( s_log_impl().stream(), tu );
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_unit_finish( test_unit const& tu, unsigned long elapsed )
+{
+    if( s_log_impl().m_threshold_level > log_test_units )
+        return;
+
+    s_log_impl().m_checkpoint_data.clear();
+
+    if( s_log_impl().m_entry_in_progress )
+        *this << log::end();
+
+    s_log_impl().m_log_formatter->test_unit_finish( s_log_impl().stream(), tu, elapsed );
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_unit_skipped( test_unit const& tu )
+{
+    if( s_log_impl().m_threshold_level > log_test_units )
+        return;
+
+    if( s_log_impl().m_entry_in_progress )
+        *this << log::end();
+
+    s_log_impl().m_log_formatter->test_unit_skipped( s_log_impl().stream(), tu );
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::test_unit_aborted( test_unit const& )
+{
+    // do nothing
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::assertion_result( bool )
+{
+    // do nothing
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::exception_caught( execution_exception const& ex )
+{
+    log_level l =
+        ex.code() <= execution_exception::cpp_exception_error   ? log_cpp_exception_errors :
+        (ex.code() <= execution_exception::timeout_error        ? log_system_errors
+                                                                : log_fatal_errors );
+
+    if( l >= s_log_impl().m_threshold_level ) {
+        if( s_log_impl().m_entry_in_progress )
+            *this << log::end();
+
+        s_log_impl().m_log_formatter->log_exception( s_log_impl().stream(), s_log_impl().m_checkpoint_data, ex );
+    }
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::set_checkpoint( const_string file, std::size_t line_num, const_string msg )
+{
+    s_log_impl().set_checkpoint( file, line_num, msg );
+}
+
+//____________________________________________________________________________//
+
+char
+set_unix_slash( char in )
+{
+    return in == '\\' ? '/' : in;
+}
+    
+unit_test_log_t&
+unit_test_log_t::operator<<( log::begin const& b )
+{
+    if( s_log_impl().m_entry_in_progress )
+        *this << log::end();
+
+    s_log_impl().m_stream_state_saver->restore();
+
+    s_log_impl().m_entry_data.clear();
+
+    assign_op( s_log_impl().m_entry_data.m_file_name, b.m_file_name, 0 );
+
+    // normalize file name
+    std::transform( s_log_impl().m_entry_data.m_file_name.begin(), s_log_impl().m_entry_data.m_file_name.end(),
+                    s_log_impl().m_entry_data.m_file_name.begin(),
+                    &set_unix_slash );
+
+    s_log_impl().m_entry_data.m_line_num = b.m_line_num;
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+unit_test_log_t&
+unit_test_log_t::operator<<( log::end const& )
+{
+    if( s_log_impl().m_entry_in_progress )
+        s_log_impl().m_log_formatter->log_entry_finish( s_log_impl().stream() );
+
+    s_log_impl().m_entry_in_progress = false;
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+unit_test_log_t&
+unit_test_log_t::operator<<( log_level l )
+{
+    s_log_impl().m_entry_data.m_level = l;
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+ut_detail::entry_value_collector
+unit_test_log_t::operator()( log_level l )
+{
+    *this << l;
+
+    return ut_detail::entry_value_collector();
+}
+
+//____________________________________________________________________________//
+
+bool
+unit_test_log_t::log_entry_start()
+{
+    if( s_log_impl().m_entry_in_progress ) 
+        return true;
+
+    switch( s_log_impl().m_entry_data.m_level ) {
+    case log_successful_tests:
+        s_log_impl().m_log_formatter->log_entry_start( s_log_impl().stream(), s_log_impl().m_entry_data,
+                                                       unit_test_log_formatter::BOOST_UTL_ET_INFO );
+        break;
+    case log_messages:
+        s_log_impl().m_log_formatter->log_entry_start( s_log_impl().stream(), s_log_impl().m_entry_data,
+                                                       unit_test_log_formatter::BOOST_UTL_ET_MESSAGE );
+        break;
+    case log_warnings:
+        s_log_impl().m_log_formatter->log_entry_start( s_log_impl().stream(), s_log_impl().m_entry_data,
+                                                       unit_test_log_formatter::BOOST_UTL_ET_WARNING );
+        break;
+    case log_all_errors:
+    case log_cpp_exception_errors:
+    case log_system_errors:
+        s_log_impl().m_log_formatter->log_entry_start( s_log_impl().stream(), s_log_impl().m_entry_data,
+                                                       unit_test_log_formatter::BOOST_UTL_ET_ERROR );
+        break;
+    case log_fatal_errors:
+        s_log_impl().m_log_formatter->log_entry_start( s_log_impl().stream(), s_log_impl().m_entry_data,
+                                                       unit_test_log_formatter::BOOST_UTL_ET_FATAL_ERROR );
+        break;
+    case log_nothing:
+    case log_test_units:
+    case invalid_log_level:
+        return false;
+    }
+
+    s_log_impl().m_entry_in_progress = true;
+
+    return true;
+}
+
+//____________________________________________________________________________//
+
+unit_test_log_t&
+unit_test_log_t::operator<<( const_string value )
+{
+    if( s_log_impl().m_entry_data.m_level >= s_log_impl().m_threshold_level && !value.empty() && log_entry_start() )
+        s_log_impl().m_log_formatter->log_entry_value( s_log_impl().stream(), value );
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+unit_test_log_t&
+unit_test_log_t::operator<<( lazy_ostream const& value )
+{
+    if( s_log_impl().m_entry_data.m_level >= s_log_impl().m_threshold_level && !value.empty() && log_entry_start() )
+        s_log_impl().m_log_formatter->log_entry_value( s_log_impl().stream(), value );
+
+    return *this;
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::set_stream( std::ostream& str )
+{
+    if( s_log_impl().m_entry_in_progress )
+        return;
+
+    s_log_impl().m_stream = &str;
+    s_log_impl().m_stream_state_saver.reset( new io_saver_type( str ) );
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::set_threshold_level( log_level lev )
+{
+    if( s_log_impl().m_entry_in_progress || lev == invalid_log_level )
+        return;
+
+    s_log_impl().m_threshold_level = lev;
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::set_format( output_format log_format )
+{
+    if( s_log_impl().m_entry_in_progress )
+        return;
+
+    if( log_format == CLF )
+        set_formatter( new output::compiler_log_formatter );
+    else
+        set_formatter( new output::xml_log_formatter );
+}
+
+//____________________________________________________________________________//
+
+void
+unit_test_log_t::set_formatter( unit_test_log_formatter* the_formatter )
+{
+    s_log_impl().m_log_formatter.reset( the_formatter );
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************            unit_test_log_formatter           ************** //
+// ************************************************************************** //
+
+void
+unit_test_log_formatter::log_entry_value( std::ostream& ostr, lazy_ostream const& value )
+{
+    log_entry_value( ostr, (wrap_stringstream().ref() << value).str() );
+}
+
+//____________________________________________________________________________//
+
+} // namespace unit_test
+
+} // namespace ndnboost
+
+//____________________________________________________________________________//
+
+#include <ndnboost/test/detail/enable_warnings.hpp>
+
+#endif // BOOST_TEST_UNIT_TEST_LOG_IPP_012205GER