Would minimal tests for importKey/exportKey be worthwhile?

The subject line says it all. I don't have the time (or expertise) to
develop a full suite of tests for importKey and exportKey, but could test
the "happy paths" that should succeed without throwing errors.

Would this be worthwhile? I've already done this for everything but public
key algorithms. Adding them would be more work, so before I dive in, is it
even worth it? Or should we wait for someone who can build a more thorough
suite?

Charlie