it can fail for now, but we will want to support it
This versioning situation sucks.
It is impossible to run our tests on both Rails 3.2 and Rails 4: 1. Rails 3.2 relies on test/unit, which is MiniTest 4. 2. Rails 4 relies on MiniTest 5. 3. MiniTest 5 is not compatible with test/unit. 😢 😢 😢