mongodb 0.9.1

The official MongoDB driver for Rust (currently in alpha)
Documentation 
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runOn:
    -
        minServerVersion: "4.1.11"

data:
    - { _id: 1, x: 1, y: 1, t: {u: {v: 1}} }
    - { _id: 2, x: 2, y: 1 }

collection_name: &collection_name "test"
database_name: &database_name "crud-tests"

tests:
  -
    description: "UpdateOne using pipelines"
    operations:
      -
        name: "updateOne"
        arguments:
            filter: { _id: 1 }
            update: [ { $replaceRoot: { newRoot: "$t" } }, { $addFields: { foo: 1 } } ]
        result:
          matchedCount: 1
          modifiedCount: 1
          upsertedCount: 0
    expectations:
      -
        command_started_event:
          command:
            update: *collection_name
            updates:
              -
                q: { _id: 1 }
                u: [ { $replaceRoot: { newRoot: "$t" } }, { $addFields: { foo: 1 } } ]
          command_name: update
          database_name: *database_name
    outcome:
      collection:
        data:
          - { _id: 1, u: {v: 1}, foo: 1 }
          - { _id: 2, x: 2, y: 1 }
  -
    description: "UpdateMany using pipelines"
    operations:
      -
        name: "updateMany"
        arguments:
            filter: {}
            update: [ { $project: { x: 1 } }, { $addFields: { foo: 1 } } ]
        result:
          matchedCount: 2
          modifiedCount: 2
          upsertedCount: 0
    expectations:
      -
        command_started_event:
          command:
            update: *collection_name
            updates:
              -
                q: { }
                u: [ { $project: { x: 1 } }, { $addFields: { foo: 1 } } ]
                multi: true
          command_name: update
          database_name: *database_name
    outcome:
      collection:
        data:
          - { _id: 1, x: 1, foo: 1 }
          - { _id: 2, x: 2, foo: 1 }
  -
    description: "FindOneAndUpdate using pipelines"
    operations:
      -
        name: "findOneAndUpdate"
        arguments:
            filter: { _id: 1 }
            update: [ { $project: { x: 1 } }, { $addFields: { foo: 1 } } ]
    expectations:
      -
        command_started_event:
          command:
            findAndModify: *collection_name
            update:
              - $project: { x: 1 }
              - $addFields: { foo: 1 }
          command_name: findAndModify
          database_name: *database_name
    outcome:
      collection:
        data:
          - { _id: 1, x: 1, foo: 1 }
          - { _id: 2, x: 2, y: 1 }
  -
    description: "UpdateOne in bulk write using pipelines"
    operations:
      -
        name: "bulkWrite"
        arguments:
          requests:
            -
              name: "updateOne"
              arguments:
                filter: { _id: 1 }
                update: [ { $replaceRoot: { newRoot: "$t" } }, { $addFields: { foo: 1 } } ]
        result:
          matchedCount: 1
          modifiedCount: 1
          upsertedCount: 0
    expectations:
      -
        command_started_event:
          command:
            update: *collection_name
            updates:
              -
                q: { _id: 1 }
                u: [ { $replaceRoot: { newRoot: "$t" } }, { $addFields: { foo: 1 } } ]
          command_name: update
          database_name: *database_name
    outcome:
      collection:
        data:
          - { _id: 1, u: {v: 1}, foo: 1 }
          - { _id: 2, x: 2, y: 1 }
  -
    description: "UpdateMany in bulk write using pipelines"
    operations:
      -
        name: "bulkWrite"
        arguments:
          requests:
            -
              name: "updateMany"
              arguments:
                filter: {}
                update: [ { $project: { x: 1 } }, { $addFields: { foo: 1 } } ]
        result:
          matchedCount: 2
          modifiedCount: 2
          upsertedCount: 0
    expectations:
      -
        command_started_event:
          command:
            update: *collection_name
            updates:
              -
                q: { }
                u: [ { $project: { x: 1 } }, { $addFields: { foo: 1 } } ]
                multi: true
          command_name: update
          database_name: *database_name
    outcome:
      collection:
        data:
          - { _id: 1, x: 1, foo: 1 }
          - { _id: 2, x: 2, foo: 1 }