f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d
73%

Ran 14 Jul 2026 07:04PM UTC

Jobs 2

Files 215

Run time 1min

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Committed 14 Jul 2026 07:03PM UTC coverage: 68.764% (+0.4%) from 68.356%

Build # f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d

Build Type

push

github

Committed by

web-flow

Commit Message

Add behavioral tests for Olivine IndexUpdate mutations (bedrock-zsw) (#78)

## Summary
- Adds `index_update_test.exs` with 14 behavioral tests for
`Olivine.IndexUpdate` (coverage 91.3% → 95.6%)
- Covers pending-operation merging, multi-page `clear_range`
(middle-page deletion, id recycling, chain repair), page-0 protection,
chain-following edge cases, empty-page handling, statistics tracking
(both the ≤10 direct path and >10 MapSet path), and atomic mutations on
missing/existing keys

## Findings
- The `0 in middle_page_ids` branch of `clear_range`
(index_update.ex:203-215) is **unreachable through the public API**:
chain traversal uses `next_id == 0` as the end-of-chain sentinel, so
page 0 can never be visited as a successor. Documented in a test
comment; an independent audit confirmed the reasoning. Follow-up ticket
recommends removing or coveralls-ignoring the dead branch.
- `clear_range` increments `keys_removed` unconditionally while per-page
set/clear stats are gated on `track_statistics` — the tests document
this asymmetry; may merit its own review.

## Test plan
- 14/14 new tests green at multiple seeds; full suite (2313 tests, 158
properties) green
- Independently audited by a separate reviewer pass: no defects found

Ticket: bedrock-zsw

Coverage Stats

5387 of 7834 relevant lines covered (68.76%)

1970.95 hits per line

Coverage Regressions

Lines	Coverage	∆	File
4	87.18	-1.47%	lib/bedrock/data_plane/transaction.ex

Jobs

ID	Job ID	Ran	Files	Coverage
1	f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d.1	14 Jul 2026 07:04PM UTC	215	68.73	GitHub Action Run
2	f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d.2	14 Jul 2026 07:04PM UTC	215	68.71	GitHub Action Run

bedrock-kv / bedrock / f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d
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bedrock-kv / bedrock / f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d 73%

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bedrock-kv / bedrock / f36dbb125a6ccdafcd6cf7db9da30e0276b06a6d
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