Elep

{
  "runOn": [
    {
      "minServerVersion": "4.1.11"
    }
  ],
  "data": [
    {
      "_id": 1,
      "x": 11
    },
    {
      "_id": 2,
      "x": 22
    },
    {
      "_id": 3,
      "x": 33
    }
  ],
  "collection_name": "test_aggregate_merge",
  "tests": [
    {
      "description": "Aggregate with $merge",
      "operations": [
        {
          "object": "collection",
          "name": "aggregate",
          "arguments": {
            "pipeline": [
              {
                "$sort": {
                  "x": 1
                }
              },
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_test_collection"
                }
              }
            ]
          }
        }
      ],
      "expectations": [
        {
          "command_started_event": {
            "command": {
              "aggregate": "test_aggregate_merge",
              "pipeline": [
                {
                  "$sort": {
                    "x": 1
                  }
                },
                {
                  "$match": {
                    "_id": {
                      "$gt": 1
                    }
                  }
                },
                {
                  "$merge": {
                    "into": "other_test_collection"
                  }
                }
              ]
            }
          }
        }
      ],
      "outcome": {
        "collection": {
          "name": "other_test_collection",
          "data": [
            {
              "_id": 2,
              "x": 22
            },
            {
              "_id": 3,
              "x": 33
            }
          ]
        }
      }
    },
    {
      "description": "Aggregate with $merge and batch size of 0",
      "operations": [
        {
          "object": "collection",
          "name": "aggregate",
          "arguments": {
            "pipeline": [
              {
                "$sort": {
                  "x": 1
                }
              },
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_test_collection"
                }
              }
            ],
            "batchSize": 0
          }
        }
      ],
      "expectations": [
        {
          "command_started_event": {
            "command": {
              "aggregate": "test_aggregate_merge",
              "pipeline": [
                {
                  "$sort": {
                    "x": 1
                  }
                },
                {
                  "$match": {
                    "_id": {
                      "$gt": 1
                    }
                  }
                },
                {
                  "$merge": {
                    "into": "other_test_collection"
                  }
                }
              ],
              "cursor": {}
            }
          }
        }
      ],
      "outcome": {
        "collection": {
          "name": "other_test_collection",
          "data": [
            {
              "_id": 2,
              "x": 22
            },
            {
              "_id": 3,
              "x": 33
            }
          ]
        }
      }
    },
    {
      "description": "Aggregate with $merge and majority readConcern",
      "operations": [
        {
          "object": "collection",
          "name": "aggregate",
          "collectionOptions": {
            "readConcern": {
              "level": "majority"
            }
          },
          "arguments": {
            "pipeline": [
              {
                "$sort": {
                  "x": 1
                }
              },
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_test_collection"
                }
              }
            ]
          }
        }
      ],
      "expectations": [
        {
          "command_started_event": {
            "command": {
              "aggregate": "test_aggregate_merge",
              "pipeline": [
                {
                  "$sort": {
                    "x": 1
                  }
                },
                {
                  "$match": {
                    "_id": {
                      "$gt": 1
                    }
                  }
                },
                {
                  "$merge": {
                    "into": "other_test_collection"
                  }
                }
              ],
              "readConcern": {
                "level": "majority"
              }
            }
          }
        }
      ],
      "outcome": {
        "collection": {
          "name": "other_test_collection",
          "data": [
            {
              "_id": 2,
              "x": 22
            },
            {
              "_id": 3,
              "x": 33
            }
          ]
        }
      }
    },
    {
      "description": "Aggregate with $merge and local readConcern",
      "operations": [
        {
          "object": "collection",
          "name": "aggregate",
          "collectionOptions": {
            "readConcern": {
              "level": "local"
            }
          },
          "arguments": {
            "pipeline": [
              {
                "$sort": {
                  "x": 1
                }
              },
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_test_collection"
                }
              }
            ]
          }
        }
      ],
      "expectations": [
        {
          "command_started_event": {
            "command": {
              "aggregate": "test_aggregate_merge",
              "pipeline": [
                {
                  "$sort": {
                    "x": 1
                  }
                },
                {
                  "$match": {
                    "_id": {
                      "$gt": 1
                    }
                  }
                },
                {
                  "$merge": {
                    "into": "other_test_collection"
                  }
                }
              ],
              "readConcern": {
                "level": "local"
              }
            }
          }
        }
      ],
      "outcome": {
        "collection": {
          "name": "other_test_collection",
          "data": [
            {
              "_id": 2,
              "x": 22
            },
            {
              "_id": 3,
              "x": 33
            }
          ]
        }
      }
    },
    {
      "description": "Aggregate with $merge and available readConcern",
      "operations": [
        {
          "object": "collection",
          "name": "aggregate",
          "collectionOptions": {
            "readConcern": {
              "level": "available"
            }
          },
          "arguments": {
            "pipeline": [
              {
                "$sort": {
                  "x": 1
                }
              },
              {
                "$match": {
                  "_id": {
                    "$gt": 1
                  }
                }
              },
              {
                "$merge": {
                  "into": "other_test_collection"
                }
              }
            ]
          }
        }
      ],
      "expectations": [
        {
          "command_started_event": {
            "command": {
              "aggregate": "test_aggregate_merge",
              "pipeline": [
                {
                  "$sort": {
                    "x": 1
                  }
                },
                {
                  "$match": {
                    "_id": {
                      "$gt": 1
                    }
                  }
                },
                {
                  "$merge": {
                    "into": "other_test_collection"
                  }
                }
              ],
              "readConcern": {
                "level": "available"
              }
            }
          }
        }
      ],
      "outcome": {
        "collection": {
          "name": "other_test_collection",
          "data": [
            {
              "_id": 2,
              "x": 22
            },
            {
              "_id": 3,
              "x": 33
            }
          ]
        }
      }
    }
  ]
}