[libvirt] libvirt changes/certification questions

Hi I am new to open source development and had a question about libvirt/KVM support in the linux kernel. In general since many people are contributing to the library, are there any 'standardized regressions or certification tests' available that make sure that that the existing libvirt infrastructure does not break with new changes? More particular, how does one make sure that given kernel version is compatible with a given library drop? Thank you -- Udayan