general { funcon-term: sequential ( check-true(is-equal(tuple reverse( ), tuple( ))) , check-true(is-equal(tuple reverse(1), tuple(1))) , check-true(is-equal(tuple reverse(1,2), tuple(2,1))) , check-true(is-equal(tuple reverse(1,2,3), tuple(3,2,1))) , print "OK" ); } tests { result-term : null-value; standard-out : ["OK"]; }