I think the people who are using or used "meta-test-family" (the
application to test module), has these kind of testing files.
But I faced an installation error on my Fedora 30.
https://github.com/fedora-modularity/meta-test-family/issues/245
Are you using "meta-test-family" now?
Does it work on your environment?
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Jun Aruga / He - His - Him