In myfaces-impl there is some test cases that works with myfaces-impl internals. It could be good to publish them on maven repo, so we can add them as dependency in other projects. The most useful class is org.apache.myfaces.view.facelets.FaceletTestCase. In this way we can create test cases that takes .xhtml files directly and construct component tree directly, saving a lot of time on testing.
The idea is, in the future if this stuff is useful for other projects, to put it in a separate module, but for now I think do it in this way will work fine.
Right now, myfaces-api tests jar is published on maven repo too.