bowling/canonical-data.json rewritten

{
  "exercise":"bowling",
  "version":"0.1.0",
  "comments":[
    "Students should implement roll and score methods.",
    "Roll should accept a single integer.",
    "Score should return the game's final score, when possible",
    "For brevity the tests display all the rolls in an array;",
    "each element of the rolls array should be passed to the roll method",
    "The final tests define situations where the score can not be returned",
    "The expection for these tests is -1, indicating an error",
    "In these cases you should expect an error as is idiomatic for your language",
    "When to error is also left up to your implementation. There are two options",
    "  - Error as soon as an invalid roll is made",
    "  - Error when scoring a game with an invalid roll",
    "You can also error in both cases."
  ],
  "group":[
    {
      "description":"returns the final score of a bowling game",
      "group":[
        {
          "score":{
            "description":"should be able to score a game with all zeros",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":0
          }
        },
        {
          "score":{
            "description":"should be able to score a game with no strikes or spares",
            "rolls":[3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6, 3, 6],
            "expected":90
          }
        },
        {
          "score":{
            "description":"a spare followed by zeros is worth ten points",
            "rolls":[6, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":10
          }
        },
        {
          "score":{
            "description":"points scored in the roll after a spare are counted twice",
            "rolls":[6, 4, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":16
          }
        },
        {
          "score":{
            "description":"consecutive spares each get a one roll bonus",
            "rolls":[5, 5, 3, 7, 4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":31
          }
        },
        {
          "score":{
            "description":"a spare in the last frame gets a one roll bonus that is counted once",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 7],
            "expected":17
          }
        },
        {
          "score":{
            "description":"a strike earns ten points in a frame with a single roll",
            "rolls":[10, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":10
          }
        },
        {
          "score":{
            "description":"points scored in the two rolls after a strike are counted twice as a bonus",
            "rolls":[10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":26
          }
        },
        {
          "score":{
            "description":"consecutive strikes each get the two roll bonus",
            "rolls":[10, 10, 10, 5, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":81
          }
        },
        {
          "score":{
            "description":"a strike in the last frame gets a two roll bonus that is counted once",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 7, 1],
            "expected":18
          }
        },
        {
          "score":{
            "description":"rolling a spare with the two roll bonus does not get a bonus roll",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 7, 3],
            "expected":20
          }
        },
        {
          "score":{
            "description":"strikes with the two roll bonus do not get bonus rolls",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 10],
            "expected":30
          }
        },
        {
          "score":{
            "description":"a strike with the one roll bonus after a spare in the last frame does not get a bonus",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3, 10],
            "expected":20
          }
        },
        {
          "score":{
            "description":"all strikes is a perfect game",
            "rolls":[10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10],
            "expected":300
          }
        },
        {
          "score":{
            "description":"rolls can not score negative points",
            "rolls":[-1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"a roll can not score more than 10 points",
            "rolls":[11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"two rolls in a frame can not score more than 10 points",
            "rolls":[5, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"bonus roll after a strike in the last frame can not score more than 10 points",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 11],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"two bonus rolls after a strike in the last frame can not score more than 10 points",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 5, 6],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"two bonus rolls after a strike in the last frame can score more than 10 points if one is a strike",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 6],
            "expected":26
          }
        },
        {
          "score":{
            "description":"the second bonus rolls after a strike in the last frame can not be a strike if the first one is not a strike",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 6, 10],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"second bonus roll after a strike in the last frame can not score than 10 points",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10, 11],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"an unstarted game can not be scored",
            "rolls":[],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"an incomplete game can not be scored",
            "rolls":[0, 0],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"a game with more than ten frames can not be scored",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"bonus rolls for a strike in the last frame must be rolled before score can be calculated",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"both bonus rolls for a strike in the last frame must be rolled before score can be calculated",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 10],
            "expected":-1
          }
        },
        {
          "score":{
            "description":"bonus roll for a spare in the last frame must be rolled before score can be calculated",
            "rolls":[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, 3],
            "expected":-1
          }
        }
     ]
    }
 ]
}