The Travis CI build pipeline for rubygem-simp-rspec-puppet-facts runs bundle exec rake spec, but the task currently doesn't do anything and exits with a 0 (success) because there are no tests.
There are two classes of tests in the repository that aren't run, however.:
rake syntax:facts — easy to add to Travis CI
rake beaker — many OSes (seen with rake -T beaker:), but more difficult to run under Travis CI.
It might be possible to use the nodeset environment variables to get Travis CI to test them using docker
As a low LOE, the pipeline should at least test the factset syntax.