boost/test/unit_test_log.hpp
// (C) Copyright Gennadiy Rozental 2001. // 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 /// @brief defines singleton class unit_test_log and all manipulators. /// unit_test_log has output stream like interface. It's implementation is /// completely hidden with pimple idiom // *************************************************************************** #ifndef BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER #define BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER // Boost.Test #include <boost/test/tree/observer.hpp> #include <boost/test/detail/global_typedef.hpp> #include <boost/test/detail/log_level.hpp> #include <boost/test/detail/fwd_decl.hpp> #include <boost/test/utils/wrap_stringstream.hpp> #include <boost/test/utils/lazy_ostream.hpp> // Boost // STL #include <iosfwd> // for std::ostream& #include <boost/test/detail/suppress_warnings.hpp> //____________________________________________________________________________// namespace boost { namespace unit_test { // ************************************************************************** // // ************** log manipulators ************** // // ************************************************************************** // namespace log { struct BOOST_TEST_DECL begin { begin( const_string fn, std::size_t ln ) : m_file_name( fn ) , m_line_num( ln ) {} const_string m_file_name; std::size_t m_line_num; }; struct end {}; } // namespace log // ************************************************************************** // // ************** entry_value_collector ************** // // ************************************************************************** // namespace ut_detail { class BOOST_TEST_DECL entry_value_collector { public: // Constructors entry_value_collector() : m_last( true ) {} entry_value_collector( entry_value_collector const& rhs ) : m_last( true ) { rhs.m_last = false; } ~entry_value_collector(); // collection interface entry_value_collector const& operator<<( lazy_ostream const& ) const; entry_value_collector const& operator<<( const_string ) const; private: // Data members mutable bool m_last; }; } // namespace ut_detail // ************************************************************************** // // ************** unit_test_log ************** // // ************************************************************************** // /// @brief Manages the sets of loggers, their streams and log levels /// /// The Boost.Test framework allows for having several formatters/loggers at the same time, each of which /// having their own log level and output stream. /// /// This class serves the purpose of /// - exposing an interface to the test framework (as a boost::unit_test::test_observer) /// - exposing an interface to the testing tools /// - managing several loggers /// /// @note Accesses to the functions exposed by this class are made through the singleton /// @c boost::unit_test::unit_test_log. /// /// Users/developers willing to implement their own formatter need to: /// - implement a boost::unit_test::unit_test_log_formatter that will output the desired format /// - register the formatter during a eg. global fixture using the method @c set_formatter (though the framework singleton). /// /// @warning this observer has a higher priority than the @ref boost::unit_test::results_collector_t. This means /// that the various @ref boost::unit_test::test_results associated to each test unit may not be available at the time /// the @c test_unit_start, @c test_unit_finish ... are called. /// /// @see /// - boost::unit_test::test_observer /// - boost::unit_test::unit_test_log_formatter class BOOST_TEST_DECL unit_test_log_t : public test_observer { public: // test_observer interface implementation virtual void test_start( counter_t test_cases_amount ); virtual void test_finish(); virtual void test_aborted(); virtual void test_unit_start( test_unit const& ); virtual void test_unit_finish( test_unit const&, unsigned long elapsed ); virtual void test_unit_skipped( test_unit const&, const_string ); virtual void test_unit_aborted( test_unit const& ); virtual void exception_caught( execution_exception const& ex ); virtual int priority() { return 2; } // log configuration methods //! Sets the stream for all loggers //! //! This will override the log sink/stream of all loggers, whether enabled or not. void set_stream( std::ostream& ); //! Sets the stream for specific logger //! //! @note Has no effect if the specified format is not found //! @par Since Boost 1.62 void set_stream( output_format, std::ostream& ); //! Returns a pointer to the stream associated to specific logger //! //! @note Returns a null pointer if the format is not found //! @par Since Boost 1.67 std::ostream* get_stream( output_format ) const; //! Sets the threshold level for all loggers/formatters. //! //! This will override the log level of all loggers, whether enabled or not. void set_threshold_level( log_level ); //! Sets the threshold/log level of a specific format //! //! @note Has no effect if the specified format is not found //! @par Since Boost 1.62 void set_threshold_level( output_format, log_level ); //! Add a format to the set of loggers //! //! Adding a logger means that the specified logger is enabled. The log level is managed by the formatter itself //! and specifies what events are forwarded to the underlying formatter. //! @par Since Boost 1.62 void add_format( output_format ); //! Sets the format of the logger //! //! This will become the only active format of the logs. void set_format( output_format ); //! Returns the logger instance for a specific format. //! //! @returns the logger/formatter instance, or @c (unit_test_log_formatter*)0 if the format is not found. //! @par Since Boost 1.62 unit_test_log_formatter* get_formatter( output_format ); //! Sets the logger instance //! //! The specified logger becomes the unique active one. The custom log formatter has the //! format @c OF_CUSTOM_LOGGER. If such a format exists already, its formatter gets replaced by the one //! given in argument. //! //! The log level and output stream of the new formatter are taken from the currently active logger. In case //! several loggers are active, the order of priority is CUSTOM, HRF, XML, and JUNIT. //! If (unit_test_log_formatter*)0 is given as argument, the custom logger (if any) is removed. //! //! @note The ownership of the pointer is transfered to the Boost.Test framework. This call is equivalent to //! - a call to @c add_formatter //! - a call to @c set_format(OF_CUSTOM_LOGGER) //! - a configuration of the newly added logger with a previously configured stream and log level. void set_formatter( unit_test_log_formatter* ); //! Adds a custom log formatter to the set of formatters //! //! The specified logger is added with the format @c OF_CUSTOM_LOGGER, such that it can //! be futher selected or its stream/log level can be specified. //! If there is already a custom logger (with @c OF_CUSTOM_LOGGER), then //! the existing one gets replaced by the one given in argument. //! The provided logger is added with an enabled state. //! If (unit_test_log_formatter*)0 is given as argument, the custom logger (if any) is removed and //! no other action is performed. //! //! @note The ownership of the pointer is transfered to the Boost.Test framework. //! @par Since Boost 1.62 void add_formatter( unit_test_log_formatter* the_formatter ); // test progress logging void set_checkpoint( const_string file, std::size_t line_num, const_string msg = const_string() ); // entry logging unit_test_log_t& operator<<( log::begin const& ); // begin entry unit_test_log_t& operator<<( log::end const& ); // end entry unit_test_log_t& operator<<( log_level ); // set entry level unit_test_log_t& operator<<( const_string ); // log entry value unit_test_log_t& operator<<( lazy_ostream const& ); // log entry value ut_detail::entry_value_collector operator()( log_level ); // initiate entry collection private: // Implementation helpers bool log_entry_start(output_format log_format); void log_entry_context( log_level l ); void clear_entry_context(); // Singleton BOOST_TEST_SINGLETON_CONS( unit_test_log_t ) }; // unit_test_log_t BOOST_TEST_SINGLETON_INST( unit_test_log ) // helper macros #define BOOST_TEST_LOG_ENTRY( ll ) \ (::boost::unit_test::unit_test_log \ << ::boost::unit_test::log::begin( BOOST_TEST_L(__FILE__), __LINE__ ))(ll) \ /**/ } // namespace unit_test } // namespace boost // ************************************************************************** // // ************** Unit test log interface helpers ************** // // ************************************************************************** // // messages sent by the framework #define BOOST_TEST_FRAMEWORK_MESSAGE( M ) \ (::boost::unit_test::unit_test_log \ << ::boost::unit_test::log::begin( \ "boost.test framework", \ __LINE__ )) \ ( ::boost::unit_test::log_messages ) \ << BOOST_TEST_LAZY_MSG( M ) \ /**/ #define BOOST_TEST_MESSAGE( M ) \ BOOST_TEST_LOG_ENTRY( ::boost::unit_test::log_messages ) \ << BOOST_TEST_LAZY_MSG( M ) \ /**/ //____________________________________________________________________________// #define BOOST_TEST_PASSPOINT() \ ::boost::unit_test::unit_test_log.set_checkpoint( \ BOOST_TEST_L(__FILE__), \ static_cast<std::size_t>(__LINE__) ) \ /**/ //____________________________________________________________________________// #define BOOST_TEST_CHECKPOINT( M ) \ ::boost::unit_test::unit_test_log.set_checkpoint( \ BOOST_TEST_L(__FILE__), \ static_cast<std::size_t>(__LINE__), \ (::boost::wrap_stringstream().ref() << M).str() ) \ /**/ //____________________________________________________________________________// #include <boost/test/detail/enable_warnings.hpp> #endif // BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER