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PaperClipAI/server
Devin Foley 6008482aab fix(decisions): remove clock race from sweep-expiry tests (#10701)
## Thinking Path

> - Paperclip is the open source app people use to manage AI agents for
work.
> - The decisions service lets agents propose decisions with a TTL, and
a sweep expires them.
> - Four sweep tests create decisions that expire 5 ms in the future,
then race the service's own clock read.
> - On a loaded CI runner more than 5 ms routinely elapse before
validation, so `create` itself rejects the decision and the test fails
on unrelated PRs.
> - This pull request makes the expiry deterministic: create with a
comfortable future TTL, then move `expiresAt` into the past directly in
the store.
> - The benefit is that the decisions suite stops failing intermittently
and stops blocking unrelated PRs.

## Linked Issues or Issue Description

No open issue exists; the defect is described here following the bug
template.

**What happened?**

`decisions-service.test.ts` fails intermittently in CI with `expiresAt
must be within 30 days` in `bounds expiration work to the configured
batch size` and `falls back to the default sweep batch size for invalid
configuration`. The failure hits unrelated PRs — for example the `PR`
workflow runs for #10699 failed three times on this suite while the same
suite passes locally.

**Steps to reproduce**

1. Run `pnpm vitest run src/__tests__/decisions-service.test.ts` on a
machine under load (or add a ~10 ms delay inside
`decisionService.create` before the expiry validation).
2. The test builds `expiresAt: new Date(Date.now() + 5)`; by the time
`create` validates, `expiresAt.getTime() <= Date.now()` is true.
3. `create` throws `expiresAt must be within 30 days` (the past-expiry
branch of the validator) and the test fails before the sweep runs.

**Expected behavior**

The sweep tests exercise expiry deterministically and never depend on
fewer than 5 ms elapsing between two clock reads in different modules.

**Paperclip version**

master (`717684ad8f`); the tests landed with the decisions desk workflow
in #10672.

**Deployment mode**

Not deployment-specific — CI and local test runs.

## What Changed

- `server/src/__tests__/decisions-service.test.ts`: added two helpers —
`nearFutureExpiry()` (a 60 s TTL that passes validation with a wide
margin) and `expireDecisionNow(id)` (moves the stored `expiresAt` into
the past). The four affected tests create decisions with the future TTL,
force-expire them through the store, and drop the 10 ms sleeps. The
sweep observes the same expired state as before with no scheduler-timing
dependence.

## Verification

- `cd server && pnpm vitest run src/__tests__/decisions-service.test.ts`
— five consecutive local runs, 31/31 passing each.
- No production code changed; the diff is test-only.

## Risks

- Low risk: test-only change. The force-expire helper writes the store
directly, which is the same technique other TTL suites use to avoid
sleeping through real time.

## Model Used

Claude Fable 5 (`claude-fable-5`, Anthropic) via Claude Code — extended
thinking, tool use; diagnosis, fix, and verification runs.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have searched GitHub for duplicate or related PRs and linked
them above
- [x] I have either (a) linked existing issues with `Fixes: #` / `Closes
#` / `Refs #` OR (b) described the issue in-PR following the relevant
issue template
- [x] I have not referenced internal/instance-local Paperclip issues or
links (only public GitHub `#NNN` / `github.com/paperclipai/paperclip`
URLs)
- [x] My branch name describes the change (e.g. `docs/...`, `fix/...`)
and contains no internal Paperclip ticket id or instance-derived details
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [ ] All Paperclip CI gates are green
- [ ] Greptile is 5/5 with no open P2s, recommendations, or follow-ups
- [x] I will address all Greptile and reviewer comments before
requesting merge
2026-08-02 12:11:35 -07:00
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