description: "deleteOne"

schemaVersion: "1.0"

createEntities:
  - client:
      id: &client client
      observeEvents:
        - commandStartedEvent
        - commandSucceededEvent
        - commandFailedEvent
  - database:
      id: &database database
      client: *client
      databaseName: &databaseName command-monitoring-tests
  - collection:
      id: &collection collection
      database: *database
      collectionName: &collectionName test

initialData:
  - collectionName: *collectionName
    databaseName: *databaseName
    documents:
      - { _id: 1, x: 11 }
      - { _id: 2, x: 22 }
      - { _id: 3, x: 33 }

tests:
  - description: "A successful deleteOne"
    operations:
      - name: deleteOne
        object: *collection
        arguments:
          filter: { _id: { $gt: 1 } }
    expectEvents:
      - client: *client
        events:
          - commandStartedEvent:
              command:
                delete: *collectionName
                deletes:
                  - { q: { _id: { $gt: 1 }}, limit: 1 }
                ordered: true
              commandName: delete
              databaseName: *databaseName
          - commandSucceededEvent:
              reply: { ok: 1, n: 1 }
              commandName: delete

  - description: "A successful deleteOne with write errors"
    operations:
      - name: deleteOne
        object: *collection
        arguments:
          filter: { _id: { $unsupported: 1 } }
        expectError:
          isClientError: false
    expectEvents:
      - client: *client
        events:
          - commandStartedEvent:
              command:
                delete: *collectionName
                deletes:
                  - { q: { _id: { $unsupported: 1 }}, limit: 1 }
                ordered: true
              commandName: delete
              databaseName: *databaseName
          - commandSucceededEvent:
              reply:
                ok: 1
                n: 0
                # The legacy version of this test included an assertion that writeErrors contained a single document
                # with index=0, a "code" value, and a non-empty "errmsg". However, writeErrors can contain extra fields
                # beyond these, and the unified format currently does not permit allowing extra fields in sub-documents,
                # so those assertions are not present here.
                writeErrors: { $$type: array }
              commandName: delete
