anchor.diff:      call test_newton_refine(success)
       call test_locate_point(success)
       call test_elevate_nodes(success)
  +    call test_get_curvature(success)
   
     end subroutine curve_all_tests
   
  
positive.code: 
    end subroutine test_elevate_nodes
  
  end module test_curve
  
negative.code:        test_evaluate_curve_barycentric, test_evaluate_multi, &
         test_specialize_curve, test_evaluate_hodograph, test_subdivide_nodes, &
         subdivide_points_check, test_newton_refine, test_locate_point, &
         test_elevate_nodes, test_get_curvature
    public curve_all_tests
  
  contains
  