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// Boost.Test
#include <colour_log_formatter.h>
#include <boost/test/unit_test_suite_impl.hpp>
#include <boost/test/framework.hpp>
#include <boost/test/utils/basic_cstring/io.hpp>
#include <boost/test/utils/lazy_ostream.hpp>

// Boost
#include <boost/version.hpp>

// STL
#include <iostream>
#include <string>

#include <dpl/colors.h>

// ************************************************************************** //
// **************            colour_log_formatter            ************** //
// ************************************************************************** //

using namespace boost::unit_test;
namespace CCHECKER {

namespace {

const_string
test_phase_identifier()
{
    return framework::is_initialized()
            ? const_string( framework::current_test_case().p_name.get() )
            : BOOST_TEST_L( "Test setup" );
}

const_string
get_basename(const const_string &file_name) {
    return basename(file_name.begin());
}

std::string
get_basename(const std::string &file_name) {
    return basename(file_name.c_str());
}

} // local namespace

//____________________________________________________________________________//

void
colour_log_formatter::log_start(
        std::ostream& output,
        counter_t test_cases_amount )
{
    if( test_cases_amount > 0 )
        output  << "Running " << test_cases_amount << " test "
                << (test_cases_amount > 1 ? "cases" : "case") << "...\n";
}

//____________________________________________________________________________//

void
colour_log_formatter::log_finish( std::ostream& ostr )
{
    ostr.flush();
}

//____________________________________________________________________________//

void
colour_log_formatter::log_build_info( std::ostream& output )
{
    output  << "Platform: " << BOOST_PLATFORM            << '\n'
            << "Compiler: " << BOOST_COMPILER            << '\n'
            << "STL     : " << BOOST_STDLIB              << '\n'
            << "Boost   : " << BOOST_VERSION/100000      << "."
                            << BOOST_VERSION/100 % 1000  << "."
                            << BOOST_VERSION % 100       << std::endl;
}

//____________________________________________________________________________//

void
colour_log_formatter::test_unit_start(
        std::ostream& output,
        test_unit const& tu )
{
    if (tu.p_type_name->find(const_string("suite")) == 0) {
        output << "Starting test " << tu.p_type_name << " \"" << tu.p_name << "\"" << std::endl;
    } else {
        output << "Running test " << tu.p_type_name << " \"" << tu.p_name << "\"" << std::endl;
    }
}

//____________________________________________________________________________//

void
colour_log_formatter::test_unit_finish(
        std::ostream& output,
        test_unit const& tu,
        unsigned long elapsed )
{
    if (tu.p_type_name->find(const_string("suite")) == 0) {
        output << "Finished test " << tu.p_type_name << " \"" << tu.p_name << "\""<< std::endl;
        return;
    }
    std::string color = CCHECKER::Colors::Text::GREEN_BEGIN;
    std::string status = "OK";
    if (m_isTestCaseFailed) {
        color = CCHECKER::Colors::Text::RED_BEGIN;
        status = "FAIL";
    }
    output << "\t" << "[   " << color << status << CCHECKER::Colors::Text::COLOR_END << "   ]";


    output << ", " << CCHECKER::Colors::Text::CYAN_BEGIN << "time: ";
    if( elapsed > 0 ) {
        if( elapsed % 1000 == 0 )
            output << elapsed/1000 << "ms";
        else
            output << elapsed << "mks";
    } else {
        output << "N/A";
    }

    output << CCHECKER::Colors::Text::COLOR_END << std::endl;
    m_isTestCaseFailed = false;
}

//____________________________________________________________________________//

void
colour_log_formatter::test_unit_skipped(
        std::ostream& output,
        test_unit const& tu )
{
    output  << "Test " << tu.p_type_name << " \"" << tu.p_name << "\"" << "is skipped" << std::endl;
}

//____________________________________________________________________________//

void
colour_log_formatter::log_exception(
        std::ostream& output,
        log_checkpoint_data const& checkpoint_data,
        boost::execution_exception const& ex )
{
    boost::execution_exception::location const& loc = ex.where();
    output << '\t' << CCHECKER::Colors::Text::BOLD_YELLOW_BEGIN << get_basename(loc.m_file_name)
            << '(' << loc.m_line_num << "), ";

    output << "fatal error in \""
            << (loc.m_function.is_empty() ? test_phase_identifier() : loc.m_function ) << "\": ";

    output << CCHECKER::Colors::Text::COLOR_END << ex.what();

    if( !checkpoint_data.m_file_name.is_empty() ) {
        output << '\n';
        output << "\tlast checkpoint : " << get_basename(checkpoint_data.m_file_name)
                << '(' << checkpoint_data.m_line_num << ")";
        if( !checkpoint_data.m_message.empty() )
            output << ": " << checkpoint_data.m_message;
    }

    output << std::endl;
    m_isTestCaseFailed = true;
}

//____________________________________________________________________________//

void
colour_log_formatter::log_entry_start(
        std::ostream& output,
        log_entry_data const& entry_data,
        log_entry_types let )
{
    switch( let ) {
        case BOOST_UTL_ET_INFO:
            output << '\t' << entry_data.m_file_name << '(' << entry_data.m_line_num << "), ";
            output << "info: ";
            break;
        case BOOST_UTL_ET_MESSAGE:
            break;
        case BOOST_UTL_ET_WARNING:
            output << '\t' << get_basename(entry_data.m_file_name) << '(' << entry_data.m_line_num << "), ";
            output << "warning in \"" << test_phase_identifier() << "\": ";
            break;
        case BOOST_UTL_ET_ERROR:
            output << '\t' << CCHECKER::Colors::Text::BOLD_YELLOW_BEGIN <<  get_basename(entry_data.m_file_name)
                << '(' << entry_data.m_line_num << "), ";
            output << "error in \"" << test_phase_identifier() << "\": ";
            m_isTestCaseFailed = true;
            break;
        case BOOST_UTL_ET_FATAL_ERROR:
            output << '\t' << CCHECKER::Colors::Text::BOLD_YELLOW_BEGIN <<  get_basename(entry_data.m_file_name)
                << '(' << entry_data.m_line_num << "),  ";
            output <<  " fatal error in \"" << test_phase_identifier() << "\": ";
            m_isTestCaseFailed = true;
            break;
    }
    output << CCHECKER::Colors::Text::COLOR_END;
}

//____________________________________________________________________________//

void
colour_log_formatter::log_entry_value(
        std::ostream& output,
        const_string value )
{
    output << value;
}

//____________________________________________________________________________//

void
colour_log_formatter::log_entry_value(
        std::ostream& output,
        lazy_ostream const& value )
{
    output << value;
}

//____________________________________________________________________________//

void
colour_log_formatter::log_entry_finish(
        std::ostream& output )
{
    output << std::endl;
}

//____________________________________________________________________________//

//____________________________________________________________________________//

} // namespace CCHECKER

//____________________________________________________________________________//