[ceph-users] Testing to simulate real-world usage scenarios

Hi everyone, how do you test features that are used by your users before updating/upgrading to a newer version of Ceph? For example, if you have users or customers using RBD images with special sets of permissions/caps, or users/customers using S3 with versioning... None of these should be broken by the new code. Do you use any framework, set of scripts, or anything else? So far, I have only found Teuthology for integration tests and then for S3 [https://github.com/ceph/s3-tests]. Thank you Michal