IndexedDB: Add IndexedDB implementation of EventCacheStore::load_last_chunk

[mgoldenberg]

Background

This pull request is part of a series of pull requests to add a full IndexedDB implementation of the EventCacheStore (see #4617, #4996, #5090, #5138, #5226, #5274, #5343). This particular pull request focuses on providing an implementation of EventCacheStore::load_last_chunk.

Changes

The primary change is the addition of EventCacheStore::load_last_chunk, as well as tests for ensuring this is functioning correctly.

There are also a number of additions to IndexeddbEventCacheStoreTransaction which support the implementation of EventCacheStore::load_last_chunk.

• get_chunk_by_next_chunk_id
• get_chunks_count_in_room
• get_max_chunk_id

These are simply typed wrappers around the generic functions in IndexeddbEventCacheStoreTransaction.

Future Work

• Add remaining implementations of EventCacheStore functions without relying on MemoryStore.

---

• Public API changes documented in changelogs (optional)

Signed-off-by: Michael Goldenberg m@mgoldenberg.net

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.79%. Comparing base (d68895f) to head (26eec01).
Report is 1 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

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- Coverage   88.79%   88.79%   -0.01%     
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  Files         334      334              
  Lines       91143    91143              
  Branches    91143    91143              
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- Hits        80928    80927       -1     
- Misses       6390     6391       +1     
  Partials     3825     3825              

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