fix(e24): review round 4 — a test that pinned nothing, and prose still ahead of the code

Round 4 reviewed round 3's commit. Nothing in production behaviour was wrong; what was wrong
was the round's own test and its comments, which is the failure class this loop keeps
finding.

- The new NavigationProvider case named after the `&& !channelViewRef.current` clause never
  reached it. With storage cleared and a bare URL the provider lands on "home" (E24's own
  default), not "feed", so asking for "feed" was an ordinary page change and the guard's
  first conjunct short-circuited. Deleting the clause left all 828 tests green — a dead nav
  control (the rail's own module stops closing an open channel page) with no red anywhere.
  The test now asserts the precondition and calls `setPage` with the page that IS current.
- Both new Home cases rejected a promise and then asserted after one fixed macrotask.
  React-query notifies through `notifyManager`'s own `setTimeout(0)`, registered after any
  timer the test schedules, so the assertion raced it; two reviewers measured intermittent
  reds. They poll for a signal that the rejection LANDED instead — the reroll button
  releasing, which is also the honest one for the empty-answer case, where the empty state is
  already on screen while the press is in flight and asserting it early would pass either way.
- `buryUnder`'s comment still opened with "one rule for both entry points" ten lines above the
  paragraph saying the rule is complete only for one of them, listed the non-reporting palette
  rows without `openChannel` — which has its own `replaceState` no-push branch and is reached
  from PlayerModal too — and pointed at a ROADMAP.md this repository does not contain.
- `history.dom.test.ts`'s header claimed its layers close by genuine Backs only, which two of
  its own tests contradict; and `CommandPalette.ordering.dom.test.tsx` still claimed to be
  "the only assertion in the suite" doing what the file corrected in round 3 also does. Round
  3's message said that pair was handled and only one side had been.

The provider test was re-mutation-checked (dropping the clause now goes red), and both
hardened Home tests still go red against their own reverts. Seven consecutive full runs green.
Gate: ruff, ruff format, 3x tsc, eslint (0 errors), prettier, knip, vitest 828, pytest 1005.
This commit is contained in:
2026-09-09 01:02:22 +02:00
parent 59efc8f2e8
commit d832bb19ce
6 changed files with 63 additions and 35 deletions
@@ -1,8 +1,10 @@
// @vitest-environment jsdom
//
// ONE test, ONE file, on purpose. This is the close→reclaim→run ordering contract of the palette
// (see closeThenNavigate), and it is the only assertion in the suite that drives a real
// useBackToClose entry through a real programmatic history.back().
// (see closeThenNavigate), and it ASSERTS on a real useBackToClose entry driven through a real
// programmatic history.back() — which is why it cannot share module state with anything. (It is not
// the only place in the suite where an unstubbed back() fires; history.burial.dom.test.ts is the
// other file that asserts on one, and any test rendering a real Modal can let one go.)
//
// It cannot live in CommandPalette.dom.test.tsx. jsdom gives a test FILE a single session history,
// and history.ts's overlay bookkeeping is module-global, so the sibling tests there leave an