test(bundle): drive the merge queue's failed state read, refused enqueue and refused dequeue through dist/index.js

[hivecommons-hive]

Test Improvement

Adds the three merge-queue outcomes dist/index.js did not reach, as cases in the existing on a branch that requires a merge queue describe of __tests__/bundle/bundle.test.ts:

• a GraphQL errors[] answer on the state read (a GHES without the queue fields) → one ::warning:: containing falling back to a direct merge, then the REST merge; exit 0
• an enqueue refused with Resource not accessible by integration → exit 1, errors contain the token may not enqueue and automatic-merging.md#merge-queues; no PUT merge
• unlabeled lgtm on the bot's own entry when the dequeue is refused → ::warning::could not dequeue pr #1: …, the skip reason does not say (dequeued), exit 0

To route these, MergeQueueFixture in __tests__/bundle/fakeGithub.ts gains queryError and dequeueError alongside enqueueError, mirroring testUtils.ts. Assertions are fragments, as tideMergeQueue.test.ts:224 does.

The separate mergeQueueFailures.test.ts (14 cases, copied expectRequests/mergeablePr/labeledLgtm/runPullRequest, local routeGraphql/stateOf) was dropped on review: the other 11 cases map to rows of tideMergeQueue.test.ts / mergeQueue.test.ts.

Verification on main @ a270568: npx eslint, npx tsc --noEmit, npx vitest run __tests__/bundle/bundle.test.ts -t "merge queue" — 9 pass (6 existing + 3).

Related Issue

Closes #269

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Filed by quality agent (hold-gated mode). Human review required.

[hivecommons-hive]

Important

Held for human review by the hive's ACMM level gate.

This PR was opened by the "quality" agent while Hive policy required a human checkpoint for that agent. Non-outreach agents are held at ACMM L3–L5; the outreach agent is always held because it publishes project-facing communication.

Hive will keep the hold label until a human removes it. Operators can make a deliberate one-off release during an ACMM level change with release_level_holds=true, but level changes never release this hold automatically.

[jeefy]

11 of the 14 tests repeat rows already in tideMergeQueue.test.ts / mergeQueue.test.ts (and three make the same requests as existing bundle.test.ts tests), the file copies bundle.test.ts's helpers, and it pins full strings with toEqual.

1. Keep only the three outcomes dist/ doesn't reach yet: a GraphQL errors[] state read → one warning + REST merge (L127), a forbidden enqueue → exit 1 with the permissions hint (L215), and a refused dequeue → warning, exit 0 (L270). Drop the rest (L112, L142, L155, L194–208, L230, L242, L255, L285, L301); each maps to an existing unit test row.
2. Don't copy the config-read list, expectRequests, mergeablePr, labeledLgtm, runPullRequest (L15–78). Either put the three cases in bundle.test.ts's merge-queue describe, or import from the shared __tests__/bundle/helpers.ts in #273. Prefer adding queryError/dequeueError to MergeQueueFixture (as testUtils.ts does) over the local routeGraphql/stateOf.
3. Assert fragments: errors.some(e => e.includes('the token may not enqueue')), 'automatic-merging.md#merge-queues', and warnings.some(w => w.includes('falling back to a direct merge')), as tideMergeQueue.test.ts:224 does.

[hivecommons-hive]

Addressed all three: only the three outcomes remain (state-read errors[] → warning + REST merge, forbidden enqueue → exit 1 with the permissions hint, refused dequeue → warning, exit 0), placed in bundle.test.ts's merge-queue describe; MergeQueueFixture gained queryError/dequeueError instead of the local routeGraphql/stateOf; assertions are fragments. Separate file deleted. Rebased on main @ a270568.

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🐝 Hive Agent: quality | Instance: hosted-available-lke648397-260827-5q9t | SHA: 257d2b9

— hive: agent=quality backend=copilot model=claude-fable-5.1 copilot=1.0.88

[jeefy]

Asks addressed, thanks.

[jeefy]

/kind cleanup
/lgtm
/approve
/hold cancel