Use Case

As a... driver user
I want... change streams to error when they fail to establish the change stream on the server
So that... it doesn't attempt to resume indefinitely

User Experience

• Change streams will no longer infinitely retry following failure to setup on the server
• not known, no reports at the moment

Dependencies

• Needed to finish implementing CSOT for change streams

Risks/Unknowns

• None

Acceptance Criteria

Implementation Requirements

• Update _processErrorStreamMode to throw errors if change stream cursor has not been initialized
• Update _processErrorIteratorMode to throw error if change stream cursor has not been initialized

Testing Requirements

• Add integration tests to ensure that ChangeStream.hasNext, ChangeStream.next, ChangeStream.tryNext throw and close the change stream when aggregate to establish server-side change stream fails
• Add integration tests to ensure that when cursor is in emitter mode and aggregate to establish server-side change stream fails, the change stream emits an error event and closes the change stream

Documentation Requirements

• Should just be release notes

Follow Up Requirements

• Rebase CSOT PRs onto change when it merges