Fix off by one error in FSM.player_died
Add tests related to timer in FSM.player_died
Fix off by one error in FSM.end_game
Add tests for FSM.execute and starting state of FSM
Remove setup and teardown duplication in tests
Improve stubbing in ship-spec
Add tests for postMove and fix typo in previous test
Add non-exhaustive tests for wrapPostMove
Add tests for preMove rotation
Add tests for acceleration of ship
Add test for setting visible attribute of bullet when firing
Add more tests for the ship's bullets