[BUG-1402] Return HTTP 409 on version confict when creating & updating tenants - added relevant unit test

[prabhask5]

Description

Added new TenantsActionApiTest file to put api unit tests for the /api/tenants api call- additionally wrote new unit test to test for parallel PUT /tenant/{name} calls, that they successfully return a 409 call and retry the call.

• Category (Enhancement, New feature, Bug fix, Test fix, Refactoring, Maintenance, Documentation)
  Test fix

• Why these changes are required?
  There was no test that checked for the behavior mentioned in the linked ticket, so previously we didn't know if the issue still existed or not (it apparently was fixed before), to make sure this doesn't happen again for this particular case, I decided to write a concrete test for it.

• What is the old behavior before changes and new behavior after changes?
  Test was added, there's no behavior change?

Issues Resolved

• [BUG] Return HTTP 409 on version confict when creating & updating tenants #1402 - added unit test to cover bug in this issue

Testing

Added new tenant action unit test to test parallel tenant api calls.

Check List

• New functionality includes testing
• New functionality has been documented
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[prabhask5]

@peternied I'm getting the same error in these test where the CI tests cannot find package org.opensearch.test.framework, very confused on why this is happening since the local tests are working.

[cwperks]

Thank you @prabhask5. This PR looks good to me. I left a few comments to address and will approve once all comments have been addressed.

[DarshitChanpura]

There are some styling/import errors in CI. Could you please address those?
This PR looks good to me otherwise

[prabhask5]

@peternied I'm getting errors now that can't resolve import org.opensearch.security.dlic.rest.api.AbstractRestApiUnitTest;, is this a similar issue where I can't use this package outside of the rest/api folder?

[peternied]

@prabhask5 Please look into the test failures

[DarshitChanpura]

@prabhask5 Are you still working on this?

[peternied]

Doesn't look like this is being worked on anymore, going to close this out. Please feel free to reopen if you re-engage on this @prabhask5