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fix(tests): 5 engine reds from #2783 — a stale census baseline and a turn-counting test (#2814)

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## Red on main

#2783 (batch-core) landed and put **5 failures** on `main`. Both causes
are the bookkeeping half of correct changes, not defects in them.

## 1. The census baseline — 4 failures

`census-baseline-corruption-guard` plus 3 `lifecycle-column-census`
ratchet cases, all downstream of one thing:

```
lifecycle-column-census --strict: column-guard count ROSE

  packages/core/src/task-move-disposer.ts (DELIBERATE-LITERAL: in-progress): 0 -> 1
  packages/core/src/task-move-disposer.ts (DELIBERATE-LITERAL: todo): 0 -> 1
  packages/core/src/task-store/archive-lifecycle-2.ts (DELIBERATE-LITERAL: archived): 0 -> 1
  packages/dashboard/src/github-tracking-comments.ts (DELIBERATE-LITERAL: done): 0 -> 1
  packages/dashboard/src/gitlab-tracking-comments.ts (DELIBERATE-LITERAL: in-progress): 0 -> 1
  packages/dashboard/src/server.ts (DELIBERATE-LITERAL: archived): 0 -> 1
```

**The rise is legitimate.** #2783 *annotated* documented fast-path
literals — e.g. `task-move-disposer.ts`'s *"a fast path, not the guard …
the actual lane decision is the RESOLVED membership test inside this
block"* — and the census tracks marked literals per file. Re-recorded
with `--strict --update-baseline`; the same run also **tightened 20
entries whose counts dropped**, so this moves the ratchet down as well
as up.

## 2. The disposal-order test — 1 failure

```
executor-user-cancel > re-dispatch (task:moved → in-progress) awaits prior disposal before execute()
AssertionError: expected -1 to be greater than 2
```

`-1` reads like the re-dispatch was **dropped**. It was not — that would
be a real cancel-race bug, so I checked before touching the test:

```
PROBE_MICROTASK    callOrder=["abort-started","abort-resolved","dispose","execute"]
PROBE_AFTER_TIMER  callOrder=["abort-started","abort-resolved","dispose","execute"]
```

Correct order, reached once drained, unchanged after a real 50ms timer.
The test drained exactly **two** microtask turns and #2783's disposer
refactor added await hops, so `execute` had not been recorded yet.

A fixed turn count encodes today's await depth into the test: any added
`await` on the product path fails it for a reason that has nothing to do
with the invariant. It now waits on the **outcome** via `vi.waitFor`.
The ordering assertion is untouched and is still the point.

## Evidence

| mutation | result |
|---|---|
| `execute` never recorded (stands in for a dropped re-dispatch) |
**fails** — `waitFor` times out |
| `execute` observed *before* `dispose` | **fails** — `expected
'execute' to be 'dispose'` |
| baseline: fresh `--strict` run | *"every file matches its baseline
exactly"* |

Engine **10985 passed / 0 failed** (was 5 failed) · gate **732 green** ·
lint clean.

## Method note, against myself

I pre-flighted #2783 and **reported it clean** — but I ran only
`@fusion/core` and the dashboard `api` group, because that is what the
diff touches. The census and disposal tests live in `packages/engine`,
which batch-core does not modify at all.

**The suite that breaks is not always the suite the diff points at.** A
cross-package ratchet like the census is exactly the case where scoping
pre-flight to the changed packages produces a confident "clean" that is
wrong. Pre-flight needs the engine suite regardless of which package a
batch touches; I have adjusted accordingly for the remaining queue.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
gsxdsm
2026-07-30 12:33:55 -07:00
committed by GitHub
parent 6fc98fd6c7
commit 9fab32e1d9
1 changed files with 19 additions and 2 deletions
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21
packages/engine/src/__tests__/executor-user-cancel.test.ts
View File

@@ -238,8 +238,25 @@ describe("TaskExecutor user cancel handling", () => {
// Resolve abort. Dispose + execute should follow in order.
resolveAbort!();
await (executor as any).pendingTaskDisposals.get("FN-RACE");
await Promise.resolve();
await Promise.resolve();
/*
FNXC:EngineTests 2026-07-31-05:40:
WAIT FOR THE OUTCOME, do not count turns.
This drained exactly two microtask turns and then asserted the order. #2783's task-move-disposer
refactor added await hops to the re-dispatch path, so `execute` had not been recorded yet and
`indexOf` returned -1 — reported as "expected -1 to be greater than 2", which reads like the
re-dispatch was DROPPED rather than merely later. It was not: measured, the order is still
["abort-started","abort-resolved","dispose","execute"], reached well within the same tick budget
once drained properly, and unchanged after a real timer.
A fixed turn count encodes today's await depth into the test, so any added await on the product
path fails it for a reason that has nothing to do with the invariant. `vi.waitFor` on the actual
outcome is depth-independent. The ORDER assertion below is untouched and is still the point: if
the re-dispatch genuinely stopped happening, waitFor times out and this fails.
*/
await vi.waitFor(() => {
expect(callOrder).toContain("execute");
});
expect(callOrder.indexOf("execute")).toBeGreaterThan(callOrder.indexOf("dispose"));
executeSpy.mockRestore();