Backport Sanity test to 1.x branch

[DarshitChanpura]

Backport sanity tests introduced in #1958.

This change isn't a simple backport as it involves modifying build.gradle as significant changes were made to it moving from 1.x to 2.x.

[stephen-crawford]

[Triage] Thank you @DarshitChanpura, this seems like a good issue that will be addressed to allow for backporting to 1.3 as well.

[stephen-crawford]

@DarshitChanpura, I can help pick this up.

[peternied]

I don't think we can 'backport' these tests. I think we need to reauthor these tests in a way that will work in the 1.X ecosystem.

Have we considered replacing OpenSearchRestTestCase and creating a task triggered by scripts/integtest.sh that can send those parameters into the test cases?

[DarshitChanpura]

Have we considered replacing OpenSearchRestTestCase and creating a task triggered by scripts/integtest.sh that can send those parameters into the test cases?

That is how these tests are configured currently [1][2]

[1] https://github.com/DarshitChanpura/security/blob/main/src/test/java/org/opensearch/security/sanity/tests/SecurityRestTestCase.java
[2] https://github.com/DarshitChanpura/security/blob/main/README.md#test-and-build

[peternied]

@DarshitChanpura The linked example uses OpenSearchRestTestCase, I mean completely replacing the base class with an alternative that is viable in the 1.x branch. Maybe we have to write it from scratch or modify the existing base test class used by the security plugin