rem: void push_back_action_test(boost::unit_test_framework::test_suite* test)
add: void push_back_action_test()
context: void push_back_action_test(boost::unit_test_framework::test_suite* test){    test->add( BOOST_TEST_CASE(push_back_test< std::deque<std::string> > ) );    test->add( BOOST_TEST_CASE(push_back_test< std::vector<std::string> > ) );}