load-balancer spec now explicitly requires that a TopologyDescriptionChangedEvent transitioning the topology from LoadBalanced to Unknown is emitted just before the TopologyClosedEvent is emitted.
sdam monitoring spec new explicitly requires that a TopologyDescriptionChangedEvent transitioning the topology to Unknown is emitted just before the TopologyClosedEvent is emitted.
load-balanced logging test asserts that TopologyDescriptionChangedEvent is emitted just before TopologyClosedEvent
Add monitoring tests to check for new behaviour across all topology types
Please complete the following before merging:
[x] Update changelog.
[x] Make sure there are generated JSON files from the YAML test files.
[x] Test changes in at least one language driver.
[x] Test these changes against all server versions and topologies (including standalone, replica set, sharded
clusters, and serverless).
What's changing?
TopologyDescriptionChangedEventtransitioning the topology fromLoadBalancedtoUnknownis emitted just before theTopologyClosedEventis emitted.TopologyDescriptionChangedEventtransitioning the topology toUnknownis emitted just before theTopologyClosedEventis emitted.TopologyDescriptionChangedEventis emitted just beforeTopologyClosedEventPlease complete the following before merging: