{
  "data": [
    {
      "_id": 1,
      "y": [
        {
          "b": 3
        },
        {
          "b": 1
        }
      ]
    },
    {
      "_id": 2,
      "y": [
        {
          "b": 0
        },
        {
          "b": 1
        }
      ]
    }
  ],
  "minServerVersion": "3.5.6",
  "tests": [
    {
      "description": "UpdateMany when no documents match arrayFilters",
      "operation": {
        "name": "updateMany",
        "arguments": {
          "filter": {},
          "update": {
            "$set": {
              "y.$[i].b": 2
            }
          },
          "arrayFilters": [
            {
              "i.b": 4
            }
          ]
        }
      },
      "outcome": {
        "result": {
          "matchedCount": 2,
          "modifiedCount": 0,
          "upsertedCount": 0
        },
        "collection": {
          "data": [
            {
              "_id": 1,
              "y": [
                {
                  "b": 3
                },
                {
                  "b": 1
                }
              ]
            },
            {
              "_id": 2,
              "y": [
                {
                  "b": 0
                },
                {
                  "b": 1
                }
              ]
            }
          ]
        }
      }
    },
    {
      "description": "UpdateMany when one document matches arrayFilters",
      "operation": {
        "name": "updateMany",
        "arguments": {
          "filter": {},
          "update": {
            "$set": {
              "y.$[i].b": 2
            }
          },
          "arrayFilters": [
            {
              "i.b": 3
            }
          ]
        }
      },
      "outcome": {
        "result": {
          "matchedCount": 2,
          "modifiedCount": 1,
          "upsertedCount": 0
        },
        "collection": {
          "data": [
            {
              "_id": 1,
              "y": [
                {
                  "b": 2
                },
                {
                  "b": 1
                }
              ]
            },
            {
              "_id": 2,
              "y": [
                {
                  "b": 0
                },
                {
                  "b": 1
                }
              ]
            }
          ]
        }
      }
    },
    {
      "description": "UpdateMany when multiple documents match arrayFilters",
      "operation": {
        "name": "updateMany",
        "arguments": {
          "filter": {},
          "update": {
            "$set": {
              "y.$[i].b": 2
            }
          },
          "arrayFilters": [
            {
              "i.b": 1
            }
          ]
        }
      },
      "outcome": {
        "result": {
          "matchedCount": 2,
          "modifiedCount": 2,
          "upsertedCount": 0
        },
        "collection": {
          "data": [
            {
              "_id": 1,
              "y": [
                {
                  "b": 3
                },
                {
                  "b": 2
                }
              ]
            },
            {
              "_id": 2,
              "y": [
                {
                  "b": 0
                },
                {
                  "b": 2
                }
              ]
            }
          ]
        }
      }
    }
  ]
}
 
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