It would be nice to group tests in different tiers, so that when working on a new integration it's possible to focus on group of tests.

I can think of the following groups:
1) CRUD operations with one entity (not embedded)
2) CRUD with embedded
3) Associations
4) Queries
5) MassIndexer
6) ...

This could be expresses using JUnit suite or something similar.
The purpose is to make it easier to evaluate the feature that are missing and the sate of an integration.