Create new instance of Game, test failed
Create class Game, test passed
Roll one ball in the gutter. Test failed - has no method roll
Created method roll(). Test passed
Roll all 20 balls in the gutter. Test failed - has no method score
Created @totalScore and score() to accumulate and return the total score. Test passed
Roll all ones. Test passed
Added a helper method for generating score sequence
Roll spare in the first frame followed by 3 pins. Test failed.