Some features test the factory_girl_rails integration with minitest-rails.
Other features just test normal integration with rails generators.
When minitest-rails is *always* in our gemfiles, minitest's generator
gets run during the features which generate new rails apps.
Because minitest doesnt support namespaced models, this fails. But, also,
we don't actually want to run minitest during anything other than the specific
areas where we are testing that integration.
Thus, we need the gem present on the system, but not in the gemfiles during
any times other than when it's pulled in specifically by those features.
This allows us to test factory_girl_rails against each minor release of
Rails 3. To run the full suite, run
$ bundle exec rake
To view all the rake tasks Appraisal provides, run
$ bundle exec rake -T appraisal
