...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::unit_test::progress_monitor_t — This class implements test observer interface and updates test progress as test units finish or get aborted.
// In header: <boost/test/progress_monitor.hpp> class progress_monitor_t : public test_observer, public singleton< progress_monitor_t > { };