mongo-python-driver/test/read_write_concern/operation/default-write-concern-4.2.json

{
  "description": "default-write-concern-4.2",
  "schemaVersion": "1.0",
  "runOnRequirements": [
    {
      "minServerVersion": "4.2"
    }
  ],
  "createEntities": [
    {
      "client": {
        "id": "client0",
        "observeEvents": [
          "commandStartedEvent"
        ]
      }
    },
    {
      "database": {
        "id": "database0",
        "client": "client0",
        "databaseName": "default-write-concern-tests",
        "databaseOptions": {
          "writeConcern": {}
        }
      }
    },
    {
      "collection": {
        "id": "collection0",
        "database": "database0",
        "collectionName": "coll",
        "collectionOptions": {
          "writeConcern": {}
        }
      }
    }
  ],
  "initialData": [
    {
      "collectionName": "coll",
      "databaseName": "default-write-concern-tests",
      "documents": [
        {
          "_id": 1,
          "x": 11
        },
        {
          "_id": 2,
          "x": 22
        }
      ]
    }
  ],
  "tests": [
    {
      "description": "Aggregate with $merge omits default write concern",
      "operations": [
        {
          "object": "collection0",
          "name": "aggregate",
          "arguments": {
            "pipeline": [
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_collection_name"
                }
              }
            ]
          }
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "aggregate": "coll",
                  "pipeline": [
                    {
                      "$match": {
                        "_id": {
                          "$gt": 1
                        }
                      }
                    },
                    {
                      "$merge": {
                        "into": "other_collection_name"
                      }
                    }
                  ],
                  "writeConcern": {
                    "$$exists": false
                  }
                }
              }
            }
          ]
        }
      ],
      "outcome": [
        {
          "collectionName": "other_collection_name",
          "databaseName": "default-write-concern-tests",
          "documents": [
            {
              "_id": 2,
              "x": 22
            }
          ]
        }
      ]
    }
  ]
}