update release unit tests

Currently has confusing layout, isn't very comprehensive, and uses yaml package definition files.
Need to add include modules for testing also.

Start by locating the release unit tests and the YAML package definition files they use. Review the current test layout and coverage, then determine how include modules should be represented in the tests. Done means the layout is clearer, coverage is more comprehensive, and include modules are covered.

Written by the indexing model from the issue text.