Add a new bibliographic framework code without setting the MARC structure. Run the MARC Bibliographic framework test. It should report that framework code as an error (not setup).
This is still valid.
This problematic, especially if there are several frameworks. One has to go through each one until the problem is found. It would be nice if the framework test reported the error and the framework. There should be a separate report for each framework. It would also be nice if a test could be run on a selected framework.