this is the first attempt to update the test suite to Minitest 5. We are going to upgrade Ruby on Rails in Fedora 21 and RoR 4.1 uses the new Minitest so we upgraded it as well. We would love to see gems to use the new Minitest not to carry patches or sticking with the old one.
What this PR changes?
Update to Minitest 5
Thanks for submitting this pull request.
I have merged the change.