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silverwind 3223d919b0 test: fix flaky TestResourceIndex and reduce its runtime (#37847 )

The modernc SQLite driver (default since
https://github.com/go-gitea/gitea/pull/37562) returns `SQLITE_BUSY` once
the busy timeout is reached, unlike mattn which waited indefinitely.
`TestResourceIndex` fires many concurrent `NewIssue` writers, but SQLite
serializes all writers, so they queue on a single `BEGIN IMMEDIATE`
write lock. Under `-race` (modernc is much slower) the goroutines at the
back of the queue exceeded the hardcoded 5s test timeout, producing
`database is locked (5) (SQLITE_BUSY)`.

Changes:
- Reduce the concurrent inserts from 25 to 10. Since SQLite serializes
writers, the extra goroutines only deepen the busy-lock queue without
adding coverage. 10 still exercises concurrent index allocation while
cutting the test's `-race` runtime ~3x (2.76s to 0.86s locally).
- Share the busy-timeout constant: export `DefaultSQLiteBusyTimeout`
(20s, the production default) and reference it from the test engine
instead of the hardcoded `5000`.

Observed flake:
https://github.com/go-gitea/gitea/actions/runs/26394082930/job/77690496092

---
This PR was written with the help of Claude Opus 4.7

---------

Co-authored-by: Claude (Opus 4.7) <noreply@anthropic.com>

2026-05-26 05:06:54 +00:00

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Use make help to find available development targets
Run make fmt to format .go files, and run make lint-go to lint them
Run make lint-js to lint .ts files
Run make tidy after any go.mod changes
Run single go tests with go test -run '^TestName$' ./modulepath/
Run single js test files with pnpm exec vitest <path-filter>
Run single playwright e2e test files with GITEA_TEST_E2E_FLAGS='<filepath>' make test-e2e
Add the current year into the copyright header of new .go files
Ensure no trailing whitespace in edited files
Use Conventional Commits for commit messages and PR titles, e.g. type(scope): subject; ! before the colon if breaking. Use test type for test-only changes.
Never force-push, amend, or squash unless asked. Use new commits and normal push for pull request updates
Preserve existing code comments, do not remove or rewrite comments that are still relevant
Keep comments short, prefer same-line, explain why, never narrate code
Prefer unit tests over integration tests when logic is testable in isolation
Aim for sub-2s local runtime for integration and e2e tests
In TypeScript, use ! (non-null assertion) instead of ?./?? when a value is known to always exist
For CSS layout, prefer flex-* helpers over per-child tw-ml-* / tw-mr-* margins; fall back to tw-* utilities when specificity requires !important
Include authorship attribution in issue and pull request comments
Add Co-Authored-By lines to all commits, indicating name and model used

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