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277 lines
12 KiB
C++
277 lines
12 KiB
C++
// (C) Copyright Gennadiy Rozental 2001.
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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// See http://www.boost.org/libs/test for the library home page.
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//
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//!@file
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//!@brief Defines Unit Test Framework mono-state interfaces.
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//! The framework interfaces are based on Monostate design pattern.
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// ***************************************************************************
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#ifndef BOOST_TEST_FRAMEWORK_HPP_020805GER
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#define BOOST_TEST_FRAMEWORK_HPP_020805GER
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// Boost.Test
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#include <boost/test/detail/global_typedef.hpp>
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#include <boost/test/detail/fwd_decl.hpp>
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#include <boost/test/detail/throw_exception.hpp>
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#include <boost/test/utils/trivial_singleton.hpp>
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#include <boost/test/detail/suppress_warnings.hpp>
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// STL
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#include <stdexcept>
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//____________________________________________________________________________//
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namespace boost {
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/// Main namespace for the Unit Test Framework interfaces and implementation
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namespace unit_test {
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// ************************************************************************** //
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// ************** init_unit_test_func ************** //
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// ************************************************************************** //
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/// Test module initialization routine signature
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/// Different depending on whether BOOST_TEST_ALTERNATIVE_INIT_API is defined or not
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#ifdef BOOST_TEST_ALTERNATIVE_INIT_API
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typedef bool (*init_unit_test_func)();
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#else
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typedef test_suite* (*init_unit_test_func)( int, char* [] );
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#endif
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// ************************************************************************** //
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// ************** framework ************** //
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// ************************************************************************** //
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/// Namespace of the Unit Test Framework mono-state
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namespace framework {
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/// @name Unit Test Framework initialization and shutdown
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/// @{
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/// @brief This function performs initialization of the framework mono-state.
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///
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/// It needs to be called every time before the test is started.
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/// @param[in] init_func test module initialization routine
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/// @param[in] argc command line arguments collection
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/// @param[in] argv command line arguments collection
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BOOST_TEST_DECL void init( init_unit_test_func init_func, int argc, char* argv[] );
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/// This function applies all the decorators and figures out default run status. This argument facilitates an
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/// ability of the test cases to prepare some other test units (primarily used internally for self testing).
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/// @param[in] tu Optional id of the test unit representing root of test tree. If absent, master test suite is used
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BOOST_TEST_DECL void finalize_setup_phase( test_unit_id tu = INV_TEST_UNIT_ID);
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/// This function returns true when testing is in progress (setup is finished).
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BOOST_TEST_DECL bool test_in_progress();
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/// This function shuts down the framework and clears up its mono-state.
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///
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/// It needs to be at the very end of test module execution
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BOOST_TEST_DECL void shutdown();
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/// @}
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/// @name Test unit registration
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/// @{
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/// Provides both read and write access to current "leaf" auto test suite during the test unit registration phase.
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///
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/// During auto-registration phase the framework maintain a FIFO queue of test units being registered. New test units become children
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/// of the current "leaf" test suite and if this is test suite it is pushed back into queue and becomes a new leaf.
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/// When test suite registration is completed, a test suite is popped from the back of the queue. Only automatically registered test suites
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/// should be added to this queue. Master test suite is always a zero element in this queue, so if no other test suites are registered
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/// all test cases are added to master test suite.
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/// This function facilitates all three possible actions:
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/// - if no argument are provided it returns the current queue leaf test suite
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/// - if test suite is provided and no second argument are set, test suite is added to the queue
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/// - if no test suite are provided and last argument is false, the semantic of this function is similar to queue pop: last element is popped from the queue
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/// @param[in] ts test suite to push back to the queue
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/// @param[in] push_or_pop should we push ts to the queue or pop leaf test suite instead
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/// @returns a reference to the currently active/"leaf" test suite
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BOOST_TEST_DECL test_suite& current_auto_test_suite( test_suite* ts = 0, bool push_or_pop = true );
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/// This function add new test case into the global collection of test units the framework aware of.
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/// This function also assignes unique test unit id for every test case. Later on one can use this id to locate
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/// the test case if necessary. This is the way for the framework to maintain weak references between test units.
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/// @param[in] tc test case to register
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BOOST_TEST_DECL void register_test_unit( test_case* tc );
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/// This function add new test suite into the global collection of test units the framework aware of.
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/// This function also assignes unique test unit id for every test suite. Later on one can use this id to locate
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/// the test case if necessary. This is the way for the framework to maintain weak references between test units.
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/// @param[in] ts test suite to register
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BOOST_TEST_DECL void register_test_unit( test_suite* ts );
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/// This function removes the test unit from the collection of known test units and destroys the test unit object.
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/// This function also assigns unique test unit id for every test case. Later on one can use this id to located
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/// the test case if necessary. This is the way for the framework to maintain weak references between test units.
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/// @param[in] tu test unit to deregister
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BOOST_TEST_DECL void deregister_test_unit( test_unit* tu );
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// This function clears up the framework mono-state.
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/// After this call the framework can be reinitialized to perform a second test run during the same program lifetime.
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BOOST_TEST_DECL void clear();
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/// @}
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/// @name Test observer registration
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/// @{
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/// Adds new test execution observer object into the framework's list of test observers.
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/// Observer lifetime should exceed the the testing execution timeframe
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/// @param[in] to test observer object to add
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BOOST_TEST_DECL void register_observer( test_observer& to );
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/// Excldes the observer object form the framework's list of test observers
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/// @param[in] to test observer object to exclude
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BOOST_TEST_DECL void deregister_observer( test_observer& to );
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/// @}
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/// @name Assertion/uncaught exception context support
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/// @{
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/// Context accessor
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struct BOOST_TEST_DECL context_generator {
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context_generator() : m_curr_frame( 0 ) {}
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/// Is there any context?
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bool is_empty() const;
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/// Give me next frame; empty - last frame
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const_string next() const;
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private:
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// Data members
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mutable unsigned m_curr_frame;
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};
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/// Records context frame message.
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/// Some context frames are sticky - they can only explicitly cleared by specifying context id. Other (non sticky) context frames cleared after every assertion.
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/// @param[in] context_descr context frame message
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/// @param[in] sticky is this sticky frame or not
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/// @returns id of the newly created frame
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BOOST_TEST_DECL int add_context( lazy_ostream const& context_descr, bool sticky );
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/// Erases context frame (when test exits context scope)
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/// If context_id is passed clears that specific context frame identified by this id, otherwise clears all non sticky contexts.
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BOOST_TEST_DECL void clear_context( int context_id = -1 );
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/// Produces an instance of small "delegate" object, which facilitates access to collected context.
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BOOST_TEST_DECL context_generator get_context();
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/// @}
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/// @name Access to registered test units.
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/// @{
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/// This function provides access to the master test suite.
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/// There is only only master test suite per test module.
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/// @returns a reference the master test suite instance
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BOOST_TEST_DECL master_test_suite_t& master_test_suite();
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/// This function provides an access to the test case currently being executed.
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/// This function is only valid during test execution phase.
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/// @see current_test_case_id
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BOOST_TEST_DECL test_case const& current_test_case();
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/// This function provides an access to an id of the test case currently being executed.
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/// This function safer than current_test_case, cause if wont throw if no test case is being executed.
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/// @see current_test_case
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BOOST_TEST_DECL test_unit_id current_test_case_id(); /* safe version of above */
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/// This function provides access to a test unit by id and type combination. It will throw if no test unit located.
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/// @param[in] tu_id id of a test unit to locate
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/// @param[in] tu_type type of a test unit to locate
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/// @returns located test unit
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BOOST_TEST_DECL test_unit& get( test_unit_id tu_id, test_unit_type tu_type );
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/// This function template provides access to a typed test unit by id
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/// It will throw if you specify incorrect test unit type
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/// @tparam UnitType compile time type of test unit to get (test_suite or test_case)
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/// @param id id of test unit to get
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template<typename UnitType>
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inline UnitType& get( test_unit_id id )
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{
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return static_cast<UnitType&>( get( id, static_cast<test_unit_type>(UnitType::type) ) );
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}
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///@}
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/// @name Test initiation interface
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/// @{
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/// Initiates test execution
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/// This function is used to start the test execution from a specific "root" test unit.
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/// If no root provided, test is started from master test suite. This second argument facilitates an ability of the test cases to
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/// start some other test units (primarily used internally for self testing).
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/// @param[in] tu Optional id of the test unit or test unit itself from which the test is started. If absent, master test suite is used
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/// @param[in] continue_test true == continue test if it was already started, false == restart the test from scratch regardless
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BOOST_TEST_DECL void run( test_unit_id tu = INV_TEST_UNIT_ID, bool continue_test = true );
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/// Initiates test execution. Same as other overload
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BOOST_TEST_DECL void run( test_unit const* tu, bool continue_test = true );
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/// @}
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/// @name Test events dispatchers
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/// @{
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/// Reports results of assertion to all test observers
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BOOST_TEST_DECL void assertion_result( unit_test::assertion_result ar );
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/// Reports uncaught exception to all test observers
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BOOST_TEST_DECL void exception_caught( execution_exception const& );
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/// Reports aborted test unit to all test observers
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BOOST_TEST_DECL void test_unit_aborted( test_unit const& );
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/// @}
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namespace impl {
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// exclusively for self test
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BOOST_TEST_DECL void setup_for_execution( test_unit const& );
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BOOST_TEST_DECL void setup_loggers( );
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} // namespace impl
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// ************************************************************************** //
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// ************** framework errors ************** //
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// ************************************************************************** //
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/// This exception type is used to report internal Boost.Test framework errors.
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struct BOOST_TEST_DECL internal_error : public std::runtime_error {
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internal_error( const_string m ) : std::runtime_error( std::string( m.begin(), m.size() ) ) {}
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};
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//____________________________________________________________________________//
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/// This exception type is used to report test module setup errors.
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struct BOOST_TEST_DECL setup_error : public std::runtime_error {
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setup_error( const_string m ) : std::runtime_error( std::string( m.begin(), m.size() ) ) {}
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};
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#define BOOST_TEST_SETUP_ASSERT( cond, msg ) BOOST_TEST_I_ASSRT( cond, unit_test::framework::setup_error( msg ) )
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//____________________________________________________________________________//
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struct nothing_to_test {
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explicit nothing_to_test( int rc ) : m_result_code( rc ) {}
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int m_result_code;
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};
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//____________________________________________________________________________//
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} // namespace framework
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} // unit_test
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_FRAMEWORK_HPP_020805GER
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