When running the tests via rake/hoe (for example, with the `rake test` command), Rake invokes ruby and loads minitest/autorun before invoking the any of the actual test suite files. On the other hand, when running the tests outside of rake/hoe, the test suite's helper.rb loads the RR gem before loading minitest/autorun. This ordering causes the test suite to fail because it cannot recognize the "mock()" function from RR. Switch the ordering so that minitest/autorun loads before rr. This allows the test suite to pass in both cases.