data:
    - {_id: 1, x: 11}
tests:
    -
        description: "InsertOne with a non-existing document"
        operation:
            name: "insertOne"
            arguments:
                document: {_id: 2, x: 22}
        outcome:
            result:
                insertedId: 2
            collection:
                data:
                    - {_id: 1, x: 11}
                    - {_id: 2, x: 22}