[Testing Confirmation] Confirm current testing requirements

[stephen-crawford]

As part of the discussion around implementing an organization-wide testing policy, I am visiting each repo to see what tests they currently perform. I am conducting this work on GitHub so that it is easy to reference.

Looking at the Notifications repository, it appears there is

Repository	Unit Tests	Integration Tests	Backwards Compatibility Tests	Additional Tests	Link
Notifications				Link checker	#622

I don't see any requirements for testing. If there are any specific requirements could you respond to this issue to let me know?

From looking at the workflow file, it seems like the security-notifications-test-workflow.yml test is an integration test? Is this correct?

If there are any tests I missed or anything you think all repositories in OpenSearch should have for testing please respond to this issue with details.

[AWSHurneyt]

I believe we do have unit tests as well for this plugin?
https://github.com/opensearch-project/notifications/tree/main/notifications/notifications/src/test