[
  {
    "id": "$match example",
    "stage": "$match",
    "kind": "example",
    "pipeline": [
      {
        "$match": {
          "score": {
            "$gte": 10
          }
        }
      }
    ],
    "input": [
      {
        "score": 5
      },
      {
        "score": 12
      }
    ],
    "result": [
      {
        "score": 12
      }
    ]
  },
  {
    "id": "$match empty input",
    "stage": "$match",
    "kind": "empty input",
    "pipeline": [
      {
        "$match": {
          "score": {
            "$gte": 10
          }
        }
      }
    ],
    "input": [],
    "result": []
  },
  {
    "id": "$match invalid specification",
    "stage": "$match",
    "kind": "invalid specification",
    "pipeline": [
      {
        "$match": null
      }
    ],
    "input": [
      {
        "score": 5
      },
      {
        "score": 12
      }
    ],
    "error": "IllegalArgumentException",
    "message": "$match stage requires a condition object"
  },
  {
    "id": "$match null and missing",
    "stage": "$match",
    "kind": "null and missing",
    "pipeline": [
      {
        "$match": {
          "score": null
        }
      }
    ],
    "input": [
      {},
      {
        "score": null
      },
      {
        "score": 1
      }
    ],
    "result": [
      {},
      {
        "score": null
      }
    ]
  }
]