I just posted a blog [1] showcasing how we can use the gotun[2] tool to test the MariaDB Fedora Layered image. Using a static binary like in this example can help us not to worry about dependencies in the Atomic host for tests.
[1] https://kushaldas.in/posts/testing-fedora-mariadb-layered-image-using-gotun.... [2] https://gotun.readthedocs.io/en/latest/
Kushal