test(record-index): add coverage for tag location call for various indexes

[suryaprasanna]

Describe the issue this Pull Request addresses

This PR adds test coverage for various Indexes functionality, specifically testing tag location and partition path updates for RECORD_INDEX. The existing test suite did not cover the scenario where records are updated with a new partition path after initial insertion, which is a critical feature for record-level indexing.

Summary and Changelog

Added testTagLocationDuringUpdatesAndFailures unit test that verifies:

• Tag location returns no known locations when index is empty
• Records are not tagged after write but before commit (uncommitted state)
• Records are correctly tagged after commit is complete
• Index correctly handles updates where partition path changes for existing records
• Index distinguishes between existing records (with known locations) and new inserts when both are present in the same batch

Impact

No user-facing changes. This is a test-only addition that improves coverage for the RECORD_INDEX feature, specifically validating partition path updates which were not previously tested.

Risk Level

none - Test-only change with no impact on production code.

Documentation Update

None

Contributor's checklist

• Read through contributor's guide
• Enough context is provided in the sections above
• Adequate tests were added if applicable

[hudi-bot]

CI report:

• 1d495eb Azure: FAILURE

Bot commands

@hudi-bot supports the following commands:

• @hudi-bot run azure re-run the last Azure build