[
  {
    "id": "$skip example",
    "stage": "$skip",
    "kind": "example",
    "pipeline": [
      {
        "$skip": 1
      }
    ],
    "input": [
      {
        "x": 1
      },
      {
        "x": 2
      }
    ],
    "result": [
      {
        "x": 2
      }
    ]
  },
  {
    "id": "$skip empty input",
    "stage": "$skip",
    "kind": "empty input",
    "pipeline": [
      {
        "$skip": 1
      }
    ],
    "input": [],
    "result": []
  },
  {
    "id": "$skip invalid specification",
    "stage": "$skip",
    "kind": "invalid specification",
    "pipeline": [
      {
        "$skip": null
      }
    ],
    "input": [
      {
        "x": 1
      },
      {
        "x": 2
      }
    ],
    "error": "IllegalArgumentException",
    "message": "$skip stage requires a numeric argument"
  },
  {
    "id": "$skip negative count",
    "stage": "$skip",
    "kind": "negative count",
    "pipeline": [
      {
        "$skip": -1
      }
    ],
    "input": [
      {
        "x": 1
      }
    ],
    "error": "IllegalArgumentException",
    "message": "$skip cannot be negative"
  },
  {
    "id": "$skip zero count",
    "stage": "$skip",
    "kind": "zero count",
    "pipeline": [
      {
        "$skip": 0
      }
    ],
    "input": [
      {
        "x": 1
      }
    ],
    "result": [
      {
        "x": 1
      }
    ]
  }
]