{
  "description": "server selection for load-balanced clusters",
  "schemaVersion": "1.3",
  "runOnRequirements": [
    {
      "topologies": [
        "load-balanced"
      ]
    }
  ],
  "createEntities": [
    {
      "client": {
        "id": "client0",
        "useMultipleMongoses": true,
        "observeEvents": [
          "commandStartedEvent"
        ]
      }
    },
    {
      "database": {
        "id": "database0",
        "client": "client0",
        "databaseName": "database0Name"
      }
    },
    {
      "collection": {
        "id": "collection0",
        "database": "database0",
        "collectionName": "coll0",
        "collectionOptions": {
          "readPreference": {
            "mode": "secondaryPreferred"
          }
        }
      }
    }
  ],
  "initialData": [
    {
      "collectionName": "coll0",
      "databaseName": "database0Name",
      "documents": []
    }
  ],
  "tests": [
    {
      "description": "$readPreference is sent for load-balanced clusters",
      "operations": [
        {
          "name": "find",
          "object": "collection0",
          "arguments": {
            "filter": {}
          }
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "find": "coll0",
                  "filter": {},
                  "$readPreference": {
                    "mode": "secondaryPreferred"
                  }
                },
                "commandName": "find",
                "databaseName": "database0Name"
              }
            }
          ]
        }
      ]
    }
  ]
}