Enable running rspec on autorepeat with an empty spec.
Kick it off with an acceptance test and a stubbed solution.

Intention: Create fast a basic structure that I can adept and flesh out later.
Start to remove the stub
Identify the moves and their results
Include the repetition
Handle all (rudimentary) commands in the loop.
Cleanup
Enable backward movement.
Enable turning left and right.
Progress on running in every direction
Complete running in every direction
Clean up tests
Cleanup: Extract turning
Cleanup: Extract rolling
Cleanup: D'oh, forget attr_reader!
Try to extract a direction class
Cleanup: Complete extraction of Direction class
Cleanup: Make Direction objects immutable
Cleanup: Separate test and production code
Enable starting in any direction