Tests in Robot Simulator are overly prescriptive

[cstby]

The robot simulator exercise contains two tests that cause problems for students.

(deftest can-turn-right
  (is (= :north (robot-simulator/turn-right :west))))

(deftest can-turn-left
  (is (= :west  (robot-simulator/turn-left :north))))

A completely valid approach would be for turn-left and turn-right to accept a robot as input and produce a robot as output. However, the tests preclude this approach to solving the exercise. I would advocate for removing these tests.

[bobbicodes]

@cstby I like the way you're thinking. Would removing just those 2 deftests do the trick?

[tasxatzial]

I agree, these two tests don't really serve any purpose. I can sync with the current specs and use the correct way to test if the robot turns correctly.

@bobbicodes I'll PR this.