{
  "function": "violations",
  "cases": [
    {
      "name": "a-sane-state-has-no-violations",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": []
    },
    {
      "name": "no-apple-is-fine",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": null,
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": []
    },
    {
      "name": "a-pending-perpendicular-turn-is-fine",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Up",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": []
    },
    {
      "name": "a-one-cell-snake-is-fine",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": []
    },
    {
      "name": "a-game-over-state-can-be-sane",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 4,
              "y": 2
            },
            {
              "x": 3,
              "y": 2
            },
            {
              "x": 2,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "GameOver",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": []
    },
    {
      "name": "empty-snake",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-not-empty"
      ]
    },
    {
      "name": "head-off-the-right-edge",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 5,
              "y": 2
            },
            {
              "x": 4,
              "y": 2
            },
            {
              "x": 3,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-in-bounds"
      ]
    },
    {
      "name": "tail-above-the-board",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 1,
              "y": 1
            },
            {
              "x": 1,
              "y": 0
            },
            {
              "x": 1,
              "y": -1
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-in-bounds"
      ]
    },
    {
      "name": "head-on-its-own-body",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 2,
              "y": 3
            },
            {
              "x": 1,
              "y": 3
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 2,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-no-overlap"
      ]
    },
    {
      "name": "snake-with-a-gap",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 3,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-connected"
      ]
    },
    {
      "name": "snake-with-a-diagonal-step",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 1
            },
            {
              "x": 0,
              "y": 1
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-connected"
      ]
    },
    {
      "name": "apple-outside-the-board",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 5,
            "y": 0
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "apple-in-bounds"
      ]
    },
    {
      "name": "apple-on-the-head",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 2
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "apple-not-on-snake"
      ]
    },
    {
      "name": "apple-on-the-tail",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 0,
            "y": 2
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "apple-not-on-snake"
      ]
    },
    {
      "name": "pending-turn-straight-back",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Left",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "turn-not-reversed"
      ]
    },
    {
      "name": "pending-turn-straight-back-vertical",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Up",
          "nextDir": "Down",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "turn-not-reversed"
      ]
    },
    {
      "name": "several-violations-are-listed-in-order",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 5,
              "y": 2
            },
            {
              "x": 3,
              "y": 2
            },
            {
              "x": 3,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Left",
          "apple": {
            "x": 3,
            "y": 2
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-in-bounds",
        "snake-no-overlap",
        "snake-connected",
        "apple-not-on-snake",
        "turn-not-reversed"
      ]
    },
    {
      "name": "doubled-cell-counts-as-overlap-and-as-disconnected",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 2,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": null
        }
      ],
      "expected": [
        "snake-no-overlap",
        "snake-connected"
      ]
    },
    {
      "name": "a-queued-turn-is-fine",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Up",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": "Left"
        }
      ],
      "expected": []
    },
    {
      "name": "queued-turn-straight-back-from-the-pending-turn",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Up",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": "Down"
        }
      ],
      "expected": [
        "queued-not-reversed"
      ]
    },
    {
      "name": "reversed-pending-turn-and-reversed-queue-are-both-listed",
      "args": [
        {
          "width": 5,
          "height": 5,
          "snake": [
            {
              "x": 2,
              "y": 2
            },
            {
              "x": 1,
              "y": 2
            },
            {
              "x": 0,
              "y": 2
            }
          ],
          "dir": "Right",
          "nextDir": "Left",
          "apple": {
            "x": 4,
            "y": 4
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0,
          "queued": "Right"
        }
      ],
      "expected": [
        "turn-not-reversed",
        "queued-not-reversed"
      ]
    }
  ]
}