Files
socraticode/tests/integration
Giancarlo Erra 4e41b4604e feat(impact): wire Phase F into watcher; fix prototype-key crash; add real scale test
Closes the four reviewer-flagged gaps from the previous round:

1. **Phase F wired into the watcher / `codebase_update`.**
   `rebuildGraph(path, { skipSymbolGraph: true })` now exposes a
   file-import-only build mode. `services/indexer.ts` calls it +
   `updateChangedFilesSymbolGraph(...)` when meta exists AND ≤ 50 files
   changed (`INCREMENTAL_SYMBOL_THRESHOLD`); falls back to full rebuild
   above that. Measured speedup on a 1000-file synthetic repo: full
   rebuild 6.55 s → Phase F single-file update 197 ms (~33×).

2. **Real end-to-end scale test.**
   New `tests/integration/symbol-graph-scale.test.ts` generates 1000
   synthetic Python files × 20 symbols/file (20k symbols) against a real
   Qdrant, asserts (a) full rebuild within budget, (b) cold listSymbols /
   getImpactRadius queries within budget, (c) Phase F update ≥ 4× faster
   than full rebuild. `SCALE_LARGE=1` pushes to 10k files / 200k symbols.

3. **Smoke benchmark numbers captured.**
   New `scripts/benchmark-graph.ts` runs `rebuildGraph` against any
   target dir and emits JSON + a Markdown row. Numbers for SocratiCode
   itself (82 files / 571 symbols / 9914 call edges / 0.90 s / 167 MB
   RSS) and the synthetic 1000-file repo are now in DEVELOPER.md
   § "Real-world benchmark numbers".

4. **Logger test flake fixed.**
   `services/logger.ts` exposes `setLogLevel` / `getLogLevel`;
   `tests/unit/logger.test.ts` pins the level in beforeEach and restores
   in afterEach. Verified deterministic with `SOCRATICODE_LOG_LEVEL=debug`
   set in the shell environment.

### Bug discovered + fixed by the new benchmark

Running `scripts/benchmark-graph.ts` against SocratiCode itself crashed
the symbol graph build with `TypeError: existing.push is not a function`.
Root cause: shard maps used `shard[name]` bracket access on a plain
`{}`, which returned `Object.prototype.constructor` (a function) for
common method names like `constructor`, `toString`, `hasOwnProperty`.
Fixed by guarding all reads with `Object.hasOwn` in
`services/code-graph.ts` and `services/symbol-graph-incremental.ts`.
Added a regression test in
`tests/integration/symbol-graph-incremental.test.ts`.

### QA

- Biome lint: clean (auto-fixed 1 file).
- VS Code Problems panel: clean.
- Unit tests: 676/676 pass (29 files); reproducible.
- Integration tests touched: 45/45 pass (incremental, scale,
  indexer, code-graph).
- CodeRabbit review: no findings.
- Snyk Code: 0 issues.

### Doc updates

- DEVELOPER.md: removed "watcher still triggers full rebuild" wording,
  added "Real-world benchmark numbers" subsection with measured table.
- CHANGELOG.md: removed "Known Limitations" block; added new
  Bug Fixes entries (prototype keys, logger flake) and a Performance
  entry for the wired Phase F path with measured numbers.
2026-04-21 15:59:55 +01:00
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