Adding tests to create and verify an object-store directory

[mayankkunwar]

https://issues.redhat.com/browse/QUARKUS-679

[Sgitario]

If this property is only effective for XA transactions, this should be noted in the documentation.
What about using "quarkus.datasource.jdbc.transactions=XA"?

[mayankkunwar]

We create object-store when needed, not for every transaction, object-store would be created. I am not sure what to document, whenever there is a need of object-store internal to JTA-transaction we create it, otherwise we don't.

The issue was to just set the path of object-store whenever it is created.

[rsvoboda]

@mayankkunwar I think Jose's concern is that this test is not using Quarkus application with the "real" scenario but just focuses on the minimal code needed to trigger creation of the object-store directory.

Agree that more "real" scenario would be good addition to the test coverage so that Quarkus users can make easy use of it. For some developers it can a bit frightening when the need for transactions appears in their project and it is always nice to have good test/example to look into.

Should be that more "real" scenario addressed in this PR or it is fine to create followup GH issue to address it later?
@Sgitario / @mayankkunwar wdyt?

[mayankkunwar]

@rsvoboda Thanks for the clarification. I think there is already a issue created #9623 . Maybe we could add these tests as part of the mentioned issue?

[rsvoboda]

+1, I'm going to add approval for this PR