replicaset-emit-topology-changed-before-close.yml

description: "replicaset-emit-topology-description-changed-before-close"

schemaVersion: "1.20"

runOnRequirements:
  - topologies:
      - replicaset
    minServerVersion: "4.4" # awaitable hello

tests:
  - description: "Topology lifecycle"
    operations:
      - name: createEntities
        object: testRunner
        arguments:
          entities:
            - client:
                id: &client client
                observeEvents:
                  - topologyDescriptionChangedEvent
                  - topologyOpeningEvent
                  - topologyClosedEvent
      # ensure the topology has been fully discovered before closing the client.
      # expected events are initial server discovery and 3 server connect events.
      - name: waitForEvent
        object: testRunner
        arguments:
          client: *client
          event:
            topologyDescriptionChangedEvent: {}
          count: 4
      - name: close
        object: *client
    expectEvents:
      - client: *client
        eventType: sdam
        ignoreExtraEvents: false
        events:
          - topologyOpeningEvent: {}
          - topologyDescriptionChangedEvent: {} # unknown -> replset no primary
          - topologyDescriptionChangedEvent: {} # server connected
          - topologyDescriptionChangedEvent: {} # server connected
          - topologyDescriptionChangedEvent: {} # server connected
          - topologyDescriptionChangedEvent:  # replicaset -> unknown
              previousDescription:
                type: "ReplicaSetWithPrimary"
              newDescription:
                type: "Unknown"
          - topologyClosedEvent: {}