improvise-5jna, improvise-0x9u, improvise-seik — three browser-page defects with
one shape: a thing that looks done from every check except running it.
improvise-5jna. `doc_name`/`doc_dirty`/`doc_stored_as` were projected by z754 and
painted by nothing. `render_surface.test.js` could not see it — it is a SUBSTRING
SEARCH over the page's source, so a field named by a function nothing calls reads
as painted, which is also how `model.minibuffer` shipped dead. So the guard is a
harness assertion that loads the page and reads `#doc-name`, proved by writing it
first (`element(s) not found`). The joining is `shell.js::documentTitle`, the
TUI's own `name (stored_as) [+]` minus the chrome; the `[+]` is a node test, not a
harness one, because this deployment persists on every accepted batch and clears
the flag in the same round trip, so the marker is transient. UNPAINTED is now
empty.
improvise-0x9u. From an EDITING state a cell click did nothing at all: the
mousedown moved focus, the input's blur ran `close`, `close` repainted,
`replaceChildren` destroyed the `<td>` the mousedown landed on, and no `click`
was ever dispatched. The old spec pressed Escape between the two clicks, so it
only ever clicked from a non-editing page — this repo's characteristic defect.
Worth recording: moving to `mousedown` is NECESSARY AND NOT SUFFICIENT, and the
first attempt failed the same assertion with the same symptom. Removing a focused
`<input>` fires `blur` SYNCHRONOUSLY, so `close` rebuilt the table from inside
itself and detached the `<td>` again. `close` therefore no longer repaints, the
`blur` arm checks `closed` first, and the handler `preventDefault()`s so no focus
change happens at all — otherwise the default action focuses `#grid` after
`input.focus()` and blurs the new editor. `close` restores the DRAWN text, since
nothing repaints behind it any more.
improvise-seik. `Client::viewport` was a wasm-bindgen door with no caller, kept
for a reason `web/app.js` falsified in the same wave. It is one letter from
`set_viewport` and fails SILENTLY — identical frame, forgotten window, every
cursor key an upstream black hole. Deleted, along with the exported `init()` free
function that duplicated `new Client()`. The guard is not the deletion:
`wasm_surface.test.js` now reads the generated `.d.ts` and requires every
declared method to be one `app.js` calls or to be named in `UNCALLED` with its
reason. Proved by injecting a spare `static viewport(...)` into the built `.d.ts`
and watching it fail by name.
Tests: 1405 Rust (unchanged), 27 node + 4 bundle (was 26 + 3), 24 chromium
harness (was 23).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FC2jVn8Au7E9JPkw6bwXXH
E2E and integration tests are rare and pin boundary contracts; unit tests
assume those contracts and test between them (user, 2026-09-20). The browser
half has four boundaries — RenderModel→DOM, JS→wasm, page→peer, worker→OPFS —
and everything between them needed no browser at all.
`web/shell.js` and `web/serial.js` are the seams: pure modules that RETURN A
DESCRIPTION rather than take a DOM double. `gridPlan(model)` answers every
question `gridTable` used to answer while creating elements — the data-row
index across group headers, what a group header spans, a null group label
against an empty one, an empty edit buffer against no editor — and `app.js` is
now a loop that builds elements from it. Painting stays untested by Node; what
to paint stopped being untestable.
26 tests in `node --test web/tests` (0.12s, no Rust toolchain, no wasm bundle,
no npm install), plus three in `web/tests/bundle/` that read the generated
.d.ts and so run in the browser job. Playwright goes from 29 tests/36.9s to
16/15.5s on one machine: `widgets.spec.js` and `pointer.spec.js` are gone,
replaced by `contract.spec.js`, which asserts that EVERY field the render model
projects reaches the screen. The four widgets those specs were written for were
one failure at one boundary, and one assertion catches the fifth.
It caught it: `doc_name`/`doc_dirty`/`doc_stored_as` reach no element
(improvise-5jna, already open). They are named in `UNPAINTED` with the ticket,
so the list is the debt written down rather than an exemption.
Thirteen faults injected into the Node suite and eight into the served page,
each watched to fail the test it names; the last of those was strengthened
because the first version passed. `web/assemble.sh` grew an import-completeness
guard whose own first version was blind to the multi-line import it exists for.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Edward Langley
Edward Langley