{
  "description": "estimatedDocumentCount",
  "schemaVersion": "1.0",
  "createEntities": [
    {
      "client": {
        "id": "client0",
        "useMultipleMongoses": false,
        "uriOptions": {
          "retryReads": false
        },
        "observeEvents": [
          "commandStartedEvent"
        ]
      }
    },
    {
      "database": {
        "id": "database0",
        "client": "client0",
        "databaseName": "edc-tests"
      }
    },
    {
      "collection": {
        "id": "collection0",
        "database": "database0",
        "collectionName": "coll0"
      }
    },
    {
      "collection": {
        "id": "collection1",
        "database": "database0",
        "collectionName": "coll1"
      }
    },
    {
      "collection": {
        "id": "collection0View",
        "database": "database0",
        "collectionName": "coll0view"
      }
    }
  ],
  "initialData": [
    {
      "collectionName": "coll0",
      "databaseName": "edc-tests",
      "documents": [
        {
          "_id": 1,
          "x": 11
        },
        {
          "_id": 2,
          "x": 22
        },
        {
          "_id": 3,
          "x": 33
        }
      ]
    }
  ],
  "tests": [
    {
      "description": "estimatedDocumentCount always uses count",
      "operations": [
        {
          "name": "estimatedDocumentCount",
          "object": "collection0",
          "expectResult": 3
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll0"
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    },
    {
      "description": "estimatedDocumentCount with maxTimeMS",
      "operations": [
        {
          "name": "estimatedDocumentCount",
          "object": "collection0",
          "arguments": {
            "maxTimeMS": 6000
          },
          "expectResult": 3
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll0",
                  "maxTimeMS": 6000
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    },
    {
      "description": "estimatedDocumentCount on non-existent collection",
      "operations": [
        {
          "name": "estimatedDocumentCount",
          "object": "collection1",
          "expectResult": 0
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll1"
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    },
    {
      "description": "estimatedDocumentCount errors correctly--command error",
      "runOnRequirements": [
        {
          "minServerVersion": "4.0.0",
          "topologies": [
            "single",
            "replicaset"
          ]
        },
        {
          "minServerVersion": "4.2.0",
          "topologies": [
            "sharded"
          ]
        }
      ],
      "operations": [
        {
          "name": "failPoint",
          "object": "testRunner",
          "arguments": {
            "client": "client0",
            "failPoint": {
              "configureFailPoint": "failCommand",
              "mode": {
                "times": 1
              },
              "data": {
                "failCommands": [
                  "count"
                ],
                "errorCode": 8
              }
            }
          }
        },
        {
          "name": "estimatedDocumentCount",
          "object": "collection0",
          "expectError": {
            "errorCode": 8
          }
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll0"
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    },
    {
      "description": "estimatedDocumentCount errors correctly--socket error",
      "runOnRequirements": [
        {
          "minServerVersion": "4.0.0",
          "topologies": [
            "single",
            "replicaset"
          ]
        },
        {
          "minServerVersion": "4.2.0",
          "topologies": [
            "sharded"
          ]
        }
      ],
      "operations": [
        {
          "name": "failPoint",
          "object": "testRunner",
          "arguments": {
            "client": "client0",
            "failPoint": {
              "configureFailPoint": "failCommand",
              "mode": {
                "times": 1
              },
              "data": {
                "failCommands": [
                  "count"
                ],
                "closeConnection": true
              }
            }
          }
        },
        {
          "name": "estimatedDocumentCount",
          "object": "collection0",
          "expectError": {
            "isError": true
          }
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll0"
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    },
    {
      "description": "estimatedDocumentCount works correctly on views",
      "runOnRequirements": [
        {
          "minServerVersion": "3.4.0"
        }
      ],
      "operations": [
        {
          "name": "dropCollection",
          "object": "database0",
          "arguments": {
            "collection": "coll0view"
          }
        },
        {
          "name": "createCollection",
          "object": "database0",
          "arguments": {
            "collection": "coll0view",
            "viewOn": "coll0",
            "pipeline": [
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              }
            ]
          }
        },
        {
          "name": "estimatedDocumentCount",
          "object": "collection0View",
          "expectResult": 2
        }
      ],
      "expectEvents": [
        {
          "client": "client0",
          "events": [
            {
              "commandStartedEvent": {
                "command": {
                  "drop": "coll0view"
                },
                "commandName": "drop",
                "databaseName": "edc-tests"
              }
            },
            {
              "commandStartedEvent": {
                "command": {
                  "create": "coll0view",
                  "viewOn": "coll0",
                  "pipeline": [
                    {
                      "$match": {
                        "_id": {
                          "$gt": 1
                        }
                      }
                    }
                  ]
                },
                "commandName": "create",
                "databaseName": "edc-tests"
              }
            },
            {
              "commandStartedEvent": {
                "command": {
                  "count": "coll0view"
                },
                "commandName": "count",
                "databaseName": "edc-tests"
              }
            }
          ]
        }
      ]
    }
  ]
}