jesse-ux
f8e607c29a
Home() useState 66->52, useRef 41->39. Shell-facing fields merge into one object; subtree state lives in useRectificationSurface. Chat props 20->7. Growth contract rebaselined. Zero behavior/copy change.
55 lines
2.1 KiB
TypeScript
55 lines
2.1 KiB
TypeScript
import assert from "node:assert/strict";
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import { readFileSync } from "node:fs";
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import test from "node:test";
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const pageSource = readFileSync(new URL("../src/app/page.tsx", import.meta.url), "utf8");
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// Measured 2026-09-16 after home-state-lowering on origin/staging @ 3b17c1b2.
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// Line count: (pageSource.match(/\n/g) ?? []).length, same as `wc -l` = 1931.
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// Hook counts use \buseState[<(] / \buseRef[<(] so `useState<Type>(` is not missed.
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// Former caps were useState 66 / useRef 41 / lines 1951 on freeze-metric @ 51a65d92.
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// This round moved 14 rectification useStates out of Home (15 → 1 shell object)
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// and 2 rectification refs into useRectificationSurface.
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const PAGE_LINE_COUNT_BASELINE = 1931;
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const PAGE_LINE_COUNT_CAP = PAGE_LINE_COUNT_BASELINE + 150;
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const HOME_USE_STATE_CAP = 52;
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const HOME_USE_REF_CAP = 39;
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const USE_STATE_RE = /\buseState[<(]/g;
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const USE_REF_RE = /\buseRef[<(]/g;
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function homeSource(source: string): string {
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const marker = "export default function Home(";
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const start = source.indexOf(marker);
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assert.notEqual(start, -1, "page.tsx must export default function Home(");
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return source.slice(start);
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}
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function countMatches(source: string, pattern: RegExp): number {
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return source.match(new RegExp(pattern.source, "g"))?.length ?? 0;
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}
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test("Home() useState count must not grow", () => {
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const n = countMatches(homeSource(pageSource), USE_STATE_RE);
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assert.ok(
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n <= HOME_USE_STATE_CAP,
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`Home() has ${n} useState calls; cap is ${HOME_USE_STATE_CAP}. Extracted hooks and child components should own their own state.`,
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);
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});
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test("Home() useRef count must not grow", () => {
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const n = countMatches(homeSource(pageSource), USE_REF_RE);
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assert.ok(
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n <= HOME_USE_REF_CAP,
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`Home() has ${n} useRef calls; cap is ${HOME_USE_REF_CAP}. Do not rewrite state as refs to dodge the useState freeze.`,
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);
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});
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test("page.tsx line count stays within the coarse guardrail", () => {
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const n = (pageSource.match(/\n/g) ?? []).length;
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assert.ok(
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n <= PAGE_LINE_COUNT_CAP,
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`page.tsx has ${n} lines; cap is ${PAGE_LINE_COUNT_CAP} (${PAGE_LINE_COUNT_BASELINE} baseline + 150).`,
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);
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});
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