boost/test/tree/observer.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 abstract interface for test observer
// ***************************************************************************
#ifndef BOOST_TEST_TEST_OBSERVER_HPP_021005GER
#define BOOST_TEST_TEST_OBSERVER_HPP_021005GER
// Boost.Test
#include <boost/test/detail/fwd_decl.hpp>
#include <boost/test/detail/global_typedef.hpp>
#include <boost/test/detail/config.hpp>
#include <boost/test/detail/suppress_warnings.hpp>
//____________________________________________________________________________//
namespace boost {
namespace unit_test {
// ************************************************************************** //
// ************** test_observer ************** //
// ************************************************************************** //
/// @brief Generic test observer interface
///
/// This interface is used by observers in order to receive notifications from the
/// Boost.Test framework on the current execution state.
///
/// Several observers can be running at the same time, and it is not unusual to
/// have interactions among them. The @ref test_observer::priority member function allows the specification
/// of a particular order among them (lowest priority executed first, except specified otherwise).
///
class BOOST_TEST_DECL test_observer {
public:
//! Called before the framework starts executing the test cases
//!
//! @param[in] number_of_test_cases indicates the number of test cases. Only active
//! test cases are taken into account.
virtual void test_start( counter_t /* number_of_test_cases */ ) {}
//! Called after the framework ends executing the test cases
//!
//! @note The call is made with a reversed priority order.
virtual void test_finish() {}
//! Called when a critical error is detected
//!
//! The critical errors are mainly the signals sent by the system and caught by the Boost.Test framework.
//! Since the running binary may be in incoherent/instable state, the test execution is aborted and all remaining
//! tests are discarded.
//!
//! @note may be called before test_observer::test_unit_finish()
virtual void test_aborted() {}
//! Called before the framework starts executing a test unit
//!
//! @param[in] test_unit the test being executed
virtual void test_unit_start( test_unit const& /* test */) {}
//! Called at each end of a test unit.
//!
//! @param elapsed duration of the test unit in microseconds.
virtual void test_unit_finish( test_unit const& /* test */, unsigned long /* elapsed */ ) {}
virtual void test_unit_skipped( test_unit const& tu, const_string ) { test_unit_skipped( tu ); }
virtual void test_unit_skipped( test_unit const& ) {} ///< backward compatibility
//! Called when a test unit indicates a fatal error.
//!
//! A fatal error happens when
//! - a strong assertion (with @c REQUIRE) fails, which indicates that the test case cannot continue
//! - an unexpected exception is caught by the Boost.Test framework
virtual void test_unit_aborted( test_unit const& ) {}
virtual void assertion_result( unit_test::assertion_result ar )
{
switch( ar ) {
case AR_PASSED: assertion_result( true ); break;
case AR_FAILED: assertion_result( false ); break;
case AR_TRIGGERED: break;
default: break;
}
}
//! Called when an exception is intercepted
//!
//! In case an exception is intercepted, this call happens before the call
//! to @ref test_unit_aborted in order to log
//! additional data about the exception.
virtual void exception_caught( execution_exception const& ) {}
//! The priority indicates the order at which this observer is initialized
//! and tore down in the UTF framework. The order is lowest to highest priority.
virtual int priority() { return 0; }
protected:
//! Deprecated
virtual void assertion_result( bool /* passed */ ) {}
BOOST_TEST_PROTECTED_VIRTUAL ~test_observer() {}
};
} // namespace unit_test
} // namespace boost
#include <boost/test/detail/enable_warnings.hpp>
#endif // BOOST_TEST_TEST_OBSERVER_HPP_021005GER