{
  "function": "update",
  "cases": [
    {
      "name": "tick-moves-the-snake",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0
        },
        {
          "tag": "Tick"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 1,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 2,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "Playing",
        "frame": 0
      }
    },
    {
      "name": "tick-eating-respawns-apple",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 1,
            "y": 0
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0
        },
        {
          "tag": "Tick"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 1,
            "y": 0
          },
          {
            "x": 0,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 1,
          "y": 1
        },
        "seed": 1831565813,
        "score": 1,
        "status": "Playing",
        "frame": 0
      }
    },
    {
      "name": "tick-into-wall-is-game-over",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 2,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 0,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0
        },
        {
          "tag": "Tick"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 2,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 0,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "GameOver",
        "frame": 0
      }
    },
    {
      "name": "tick-while-paused-does-nothing",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Paused",
          "frame": 0
        },
        {
          "tag": "Tick"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 0,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 2,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "Paused",
        "frame": 0
      }
    },
    {
      "name": "turn-sets-next-dir",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0
        },
        {
          "tag": "Turn",
          "dir": "Down"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 0,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Down",
        "apple": {
          "x": 2,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "Playing",
        "frame": 0
      }
    },
    {
      "name": "turn-against-direction-is-ignored",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Playing",
          "frame": 0
        },
        {
          "tag": "Turn",
          "dir": "Left"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 0,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 2,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "Playing",
        "frame": 0
      }
    },
    {
      "name": "turn-while-paused-is-ignored",
      "args": [
        {
          "width": 3,
          "height": 2,
          "snake": [
            {
              "x": 0,
              "y": 0
            }
          ],
          "dir": "Right",
          "nextDir": "Right",
          "apple": {
            "x": 2,
            "y": 1
          },
          "seed": 0,
          "score": 0,
          "status": "Paused",
          "frame": 0
        },
        {
          "tag": "Turn",
          "dir": "Down"
        }
      ],
      "expected": {
        "width": 3,
        "height": 2,
        "snake": [
          {
            "x": 0,
            "y": 0
          }
        ],
        "dir": "Right",
        "nextDir": "Right",
        "apple": {
          "x": 2,
          "y": 1
        },
        "seed": 0,
        "score": 0,
        "status": "Paused",
        "frame": 0
      }
    }
  ]
}