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vercel__workflow/.changeset/idempotency-strategy-e2e.md
Pranay Prakash 4763a760bf test: e2e coverage for run-idempotency conflict-handling strategies (#2387)
* test: e2e coverage for run-idempotency conflict-handling strategies

Covers the patterns documented in foundations/idempotency:
- claim-only hook mutex: token claimed and held with no payload data,
  duplicate identifies the owner, token released after completion
- adopt the owner's result via conflict.returnValue
- signal the owner: duplicate forwards its payload via resumeHook
- supersede: duplicate cancels the owner and reclaims the token
- route-side resume-or-start retry pattern reaching the started run

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* test: fix adopt-owner-result race — gate owner completion on observed conflict

On slow runtimes the duplicate's first invocation could land after the
owner completed and released the token, making the duplicate a fresh
owner that waits forever for a payload (90s timeout across CI matrices).
Poll the duplicate's event log for hook_conflict before resuming the
owner, and widen the test timeout for the added gate budget.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* review: assert superseded owner's returnValue rejection; empty changeset

- Await run1.returnValue and assert WorkflowRunCancelledError so the
  cancellation is verified end-to-end and no rejection leaks from the
  supersede test.
- Test-only PR: use an empty changeset.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci: retrigger preview deployments (turbopack deployment for 2e9d000 wedged in esbuild hang)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* ci: bust poisoned turbo cache entry for nextjs-turbopack build

The 2e9d000 deployment's next build crashed in an esbuild hang but its
task (70724907c9dd3a29) was recorded into the turbo remote cache anyway,
so every subsequent build with the same input hash replays the broken
artifact (missing routes-manifest). Change a build input to force a
fresh execution.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

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Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
2026-06-12 23:08:43 -07:00

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