Depends on D7441
It seems that this patch has no reviewers specified. If you are unsure who can review your patch, please check this wiki page and see if anyone can be added: https://phab.enlightenment.org/w/maintainers_reviewers/
After reading comments in D7441 I am changing my opinion; this can't be calculated entirely in place if we want to maintain this test as a time-saving method to avoid unnecessary optimization. Having a comment as @stefan_schmidt suggested would be good, and then we can also easily see if someone changes object sizes since they would have to update the tests.