1 // (C) Copyright Gennadiy Rozental 2001.
2 // Distributed under the Boost Software License, Version 1.0.
3 // (See accompanying file LICENSE_1_0.txt or copy at
4 // http://www.boost.org/LICENSE_1_0.txt)
6 // See http://www.boost.org/libs/test for the library home page.
9 /// @brief defines singleton class unit_test_log and all manipulators.
10 /// unit_test_log has output stream like interface. It's implementation is
11 /// completely hidden with pimple idiom
12 // ***************************************************************************
14 #ifndef BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER
15 #define BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER
18 #include <boost/test/tree/observer.hpp>
20 #include <boost/test/detail/global_typedef.hpp>
21 #include <boost/test/detail/log_level.hpp>
22 #include <boost/test/detail/fwd_decl.hpp>
24 #include <boost/test/utils/wrap_stringstream.hpp>
25 #include <boost/test/utils/lazy_ostream.hpp>
30 #include <iosfwd> // for std::ostream&
32 #include <boost/test/detail/suppress_warnings.hpp>
34 //____________________________________________________________________________//
39 // ************************************************************************** //
40 // ************** log manipulators ************** //
41 // ************************************************************************** //
45 struct BOOST_TEST_DECL begin {
46 begin( const_string fn, std::size_t ln )
51 const_string m_file_name;
52 std::size_t m_line_num;
59 // ************************************************************************** //
60 // ************** entry_value_collector ************** //
61 // ************************************************************************** //
65 class BOOST_TEST_DECL entry_value_collector {
68 entry_value_collector() : m_last( true ) {}
69 entry_value_collector( entry_value_collector const& rhs ) : m_last( true ) { rhs.m_last = false; }
70 ~entry_value_collector();
72 // collection interface
73 entry_value_collector const& operator<<( lazy_ostream const& ) const;
74 entry_value_collector const& operator<<( const_string ) const;
81 } // namespace ut_detail
83 // ************************************************************************** //
84 // ************** unit_test_log ************** //
85 // ************************************************************************** //
87 /// @brief Manages the sets of loggers, their streams and log levels
89 /// The Boost.Test framework allows for having several formatters/loggers at the same time, each of which
90 /// having their own log level and output stream.
92 /// This class serves the purpose of
93 /// - exposing an interface to the test framework (as a boost::unit_test::test_observer)
94 /// - exposing an interface to the testing tools
95 /// - managing several loggers
97 /// @note Accesses to the functions exposed by this class are made through the singleton
98 /// @c boost::unit_test::unit_test_log.
100 /// Users/developers willing to implement their own formatter need to:
101 /// - implement a boost::unit_test::unit_test_log_formatter that will output the desired format
102 /// - register the formatter during a eg. global fixture using the method @c set_formatter (though the framework singleton).
104 /// @warning this observer has a higher priority than the @ref boost::unit_test::results_collector_t. This means
105 /// that the various @ref boost::unit_test::test_results associated to each test unit may not be available at the time
106 /// the @c test_unit_start, @c test_unit_finish ... are called.
109 /// - boost::unit_test::test_observer
110 /// - boost::unit_test::unit_test_log_formatter
111 class BOOST_TEST_DECL unit_test_log_t : public test_observer {
113 // test_observer interface implementation
114 virtual void test_start( counter_t test_cases_amount );
115 virtual void test_finish();
116 virtual void test_aborted();
118 virtual void test_unit_start( test_unit const& );
119 virtual void test_unit_finish( test_unit const&, unsigned long elapsed );
120 virtual void test_unit_skipped( test_unit const&, const_string );
121 virtual void test_unit_aborted( test_unit const& );
122 virtual void test_unit_timed_out( test_unit const& );
124 virtual void exception_caught( execution_exception const& ex );
126 virtual int priority() { return 2; }
128 // log configuration methods
129 //! Sets the stream for all loggers
131 //! This will override the log sink/stream of all loggers, whether enabled or not.
132 void set_stream( std::ostream& );
134 //! Sets the stream for specific logger
136 //! @note Has no effect if the specified format is not found
137 //! @par Since Boost 1.62
138 void set_stream( output_format, std::ostream& );
140 //! Returns a pointer to the stream associated to specific logger
142 //! @note Returns a null pointer if the format is not found
143 //! @par Since Boost 1.67
144 std::ostream* get_stream( output_format ) const;
147 //! Sets the threshold level for all loggers/formatters.
149 //! This will override the log level of all loggers, whether enabled or not.
150 void set_threshold_level( log_level );
152 //! Sets the threshold/log level of a specific format
154 //! @note Has no effect if the specified format is not found
155 //! @par Since Boost 1.62
156 void set_threshold_level( output_format, log_level );
158 //! Add a format to the set of loggers
160 //! Adding a logger means that the specified logger is enabled. The log level is managed by the formatter itself
161 //! and specifies what events are forwarded to the underlying formatter.
162 //! @par Since Boost 1.62
163 void add_format( output_format );
165 //! Sets the format of the logger
167 //! This will become the only active format of the logs.
168 void set_format( output_format );
170 //! Returns the logger instance for a specific format.
172 //! @returns the logger/formatter instance, or @c (unit_test_log_formatter*)0 if the format is not found.
173 //! @par Since Boost 1.62
174 unit_test_log_formatter* get_formatter( output_format );
176 //! Sets the logger instance
178 //! The specified logger becomes the unique active one. The custom log formatter has the
179 //! format @c OF_CUSTOM_LOGGER. If such a format exists already, its formatter gets replaced by the one
180 //! given in argument.
182 //! The log level and output stream of the new formatter are taken from the currently active logger. In case
183 //! several loggers are active, the order of priority is CUSTOM, HRF, XML, and JUNIT.
184 //! If (unit_test_log_formatter*)0 is given as argument, the custom logger (if any) is removed.
186 //! @note The ownership of the pointer is transfered to the Boost.Test framework. This call is equivalent to
187 //! - a call to @c add_formatter
188 //! - a call to @c set_format(OF_CUSTOM_LOGGER)
189 //! - a configuration of the newly added logger with a previously configured stream and log level.
190 void set_formatter( unit_test_log_formatter* );
192 //! Adds a custom log formatter to the set of formatters
194 //! The specified logger is added with the format @c OF_CUSTOM_LOGGER, such that it can
195 //! be futher selected or its stream/log level can be specified.
196 //! If there is already a custom logger (with @c OF_CUSTOM_LOGGER), then
197 //! the existing one gets replaced by the one given in argument.
198 //! The provided logger is added with an enabled state.
199 //! If (unit_test_log_formatter*)0 is given as argument, the custom logger (if any) is removed and
200 //! no other action is performed.
202 //! @note The ownership of the pointer is transfered to the Boost.Test framework.
203 //! @par Since Boost 1.62
204 void add_formatter( unit_test_log_formatter* the_formatter );
206 // test progress logging
207 void set_checkpoint( const_string file, std::size_t line_num, const_string msg = const_string() );
210 unit_test_log_t& operator<<( log::begin const& ); // begin entry
211 unit_test_log_t& operator<<( log::end const& ); // end entry
212 unit_test_log_t& operator<<( log_level ); // set entry level
213 unit_test_log_t& operator<<( const_string ); // log entry value
214 unit_test_log_t& operator<<( lazy_ostream const& ); // log entry value
216 ut_detail::entry_value_collector operator()( log_level ); // initiate entry collection
219 // Implementation helpers
220 bool log_entry_start(output_format log_format);
221 void log_entry_context( log_level l );
222 void clear_entry_context();
225 BOOST_TEST_SINGLETON_CONS( unit_test_log_t )
226 }; // unit_test_log_t
228 BOOST_TEST_SINGLETON_INST( unit_test_log )
231 #define BOOST_TEST_LOG_ENTRY( ll ) \
232 (::boost::unit_test::unit_test_log \
233 << ::boost::unit_test::log::begin( BOOST_TEST_L(__FILE__), __LINE__ ))(ll) \
236 } // namespace unit_test
239 // ************************************************************************** //
240 // ************** Unit test log interface helpers ************** //
241 // ************************************************************************** //
243 // messages sent by the framework
244 #define BOOST_TEST_FRAMEWORK_MESSAGE( M ) \
245 (::boost::unit_test::unit_test_log \
246 << ::boost::unit_test::log::begin( \
247 "boost.test framework", \
249 ( ::boost::unit_test::log_messages ) \
250 << BOOST_TEST_LAZY_MSG( M ) \
254 #define BOOST_TEST_MESSAGE( M ) \
255 BOOST_TEST_LOG_ENTRY( ::boost::unit_test::log_messages ) \
256 << BOOST_TEST_LAZY_MSG( M ) \
259 //____________________________________________________________________________//
261 #define BOOST_TEST_PASSPOINT() \
262 ::boost::unit_test::unit_test_log.set_checkpoint( \
263 BOOST_TEST_L(__FILE__), \
264 static_cast<std::size_t>(__LINE__) ) \
267 //____________________________________________________________________________//
269 #define BOOST_TEST_CHECKPOINT( M ) \
270 ::boost::unit_test::unit_test_log.set_checkpoint( \
271 BOOST_TEST_L(__FILE__), \
272 static_cast<std::size_t>(__LINE__), \
273 (::boost::wrap_stringstream().ref() << M).str() ) \
276 //____________________________________________________________________________//
278 #include <boost/test/detail/enable_warnings.hpp>
280 #endif // BOOST_TEST_UNIT_TEST_LOG_HPP_071894GER