[$] How many kernel test frameworks?

The kernel self-test framework (kselftest) has been a part of the kernel for some time now; a relatively recentproposal for a kernel unit-testing framework,called KUnit,has left some wondering why both exist. In a lengthy discussion thread aboutKUnit, the justification for adding another testingframework to the kernel was debated. While there are different use casesfor kselftest and KUnit, there was concern about fragmenting the kernel-testinglandscape.