{
  "exercise": "pascals-triangle",
  "version": "1.2.0",
  "comments": [
    "Expectations are represented here as an array of arrays.",
    "How you represent this idiomatically in your language is up to you.",
    "An expectation of -1 indicates some sort of failure should occur"
  ],
  "cases": [
    {
      "description": "Given a count, return a collection of that many rows of pascal's triangle",
      "cases": [
        {
          "description": "zero rows",
          "property": "rows",
          "count": 0,
          "expected": []
        },
        {
          "description": "single row",
          "property": "rows",
          "count": 1,
          "expected": [[1]]
        },
        {
          "description": "two rows",
          "property": "rows",
          "count": 2,
          "expected": [[1], [1, 1]]
        },
        {
          "description": "three rows",
          "property": "rows",
          "count": 3,
          "expected": [[1], [1, 1], [1, 2, 1]]
        },
        {
          "description": "four rows",
          "property": "rows",
          "count": 4,
          "expected": [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1]]
        },
        {
          "description": "five rows",
          "property": "rows",
          "count": 5,
          "expected": [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1]]
        },
        {
          "description": "six rows",
          "property": "rows",
          "count": 6,
          "expected": [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1], [1, 5, 10, 10, 5, 1]]
        },
        {
          "description": "ten rows",
          "property": "rows",
          "count": 10,
          "expected": [[1], [1, 1], [1, 2, 1], [1, 3, 3, 1], [1, 4, 6, 4, 1], [1, 5, 10, 10, 5, 1], [1, 6, 15, 20, 15, 6, 1], [1, 7, 21, 35, 35, 21, 7, 1], [1, 8, 28, 56, 70, 56, 28, 8, 1], [1, 9, 36, 84, 126, 126, 84, 36, 9, 1]]
        },
        {
          "description": "negative rows",
          "property": "rows",
          "count": -1,
          "expected": -1
        }
      ]
    }
  ]
}