更新换行算法和APP-PUSH

client/src/features/textWrap/golden/__tests__/golden.test.ts

@@ -0,0 +1,97 @@
+import { describe, expect, it } from 'vitest';
+
+import type { Token } from '../../core/types';
+import { normalizeWhitespace, tokenizeEN } from '../../core/index';
+import { segmentGraphemes } from '../../grapheme/index';
+import { wrapText } from '../../index';
+import { GOLDEN_CASES } from '../fixtures';
+
+function tokenizeTC(normalizedText: string): Token[] {
+  const { clusters } = segmentGraphemes(normalizedText, 'PREFERRED');
+  const tokens: Token[] = [];
+  let idx = 0;
+  for (const c of clusters) {
+    const start = idx;
+    idx += c.length;
+    tokens.push({ text: c, start, end: idx });
+  }
+  return tokens;
+}
+
+async function wrapTextHarness(args: {
+  text: string;
+  lang: 'TC' | 'EN';
+  context: 'APP' | 'WIDGET';
+  availableWidth: number;
+  maxLines: number;
+}): Promise<{ ok: true; lines: string[]; wrappedText: string } | { ok: false; detail: any }> {
+  const out = await wrapText({
+    text: args.text,
+    lang: args.lang,
+    context: args.context,
+    availableWidth: args.availableWidth,
+    maxLines: args.maxLines,
+    fontSpec: { fontFamily: 'PingFangSC-Regular', fontWeight: '400', fontSize: 16 },
+    measureWidthImpl: async ({ text }) => text.length,
+    contextProfile: `${args.context}|golden`,
+    lineMode: 'AUTO',
+    debug: true,
+  });
+
+  // wrapText 统一返回成功形态；若进入 SYSTEM_DEFAULT 等兜底，meta 会标记
+  return { ok: true, lines: out.lines, wrappedText: out.wrappedText };
+}
+
+describe('textWrap golden-tests', () => {
+  for (const c of GOLDEN_CASES) {
+    it(`golden:${c.id}`, async () => {
+      const res = await wrapTextHarness({
+        text: c.text,
+        lang: c.lang,
+        context: c.context,
+        availableWidth: c.availableWidth,
+        maxLines: c.maxLines,
+      });
+
+      if (!res.ok) {
+        throw new Error(`golden case failed: ${c.id}\n${JSON.stringify(res.detail, null, 2)}`);
+      }
+      if (res.ok) {
+        expect(res.lines).toEqual(c.expected.lines);
+        expect(res.wrappedText).toBe(c.expected.wrappedText);
+      }
+    });
+  }
+
+  it('property: 确定性（同输入多次调用一致）', async () => {
+    const args = { text: 'I am so tired', lang: 'EN' as const, context: 'APP' as const, availableWidth: 6, maxLines: 2 };
+    const a = await wrapTextHarness(args);
+    const b = await wrapTextHarness(args);
+    const c = await wrapTextHarness(args);
+    expect(a).toEqual(b);
+    expect(b).toEqual(c);
+  });
+
+  it('property: 近似单调性（availableWidth 变小不会让最大行宽变大）', async () => {
+    const base = { text: 'I am so tired', lang: 'EN' as const, context: 'APP' as const, maxLines: 2 };
+    const wide = await wrapTextHarness({ ...base, availableWidth: 20 });
+    const narrow = await wrapTextHarness({ ...base, availableWidth: 7 });
+
+    if (!wide.ok || !narrow.ok) {
+      throw new Error(`property failed: expected both ok\nwide=${JSON.stringify(wide)}\nnarrow=${JSON.stringify(narrow)}`);
+    }
+
+    const maxW = (lines: string[]) => Math.max(...lines.map((s) => s.length));
+    expect(maxW(narrow.lines)).toBeLessThanOrEqual(maxW(wide.lines));
+  });
+
+  it('property: maxLines 不变差（maxLines 增加不应从可解变无解）', async () => {
+    const base = { text: 'I am so tired', lang: 'EN' as const, context: 'APP' as const, availableWidth: 7 };
+    const a = await wrapTextHarness({ ...base, maxLines: 2 });
+    const b = await wrapTextHarness({ ...base, maxLines: 3 });
+
+    expect(a.ok).toBe(true);
+    expect(b.ok).toBe(true);
+  });
+});
+

client/src/features/textWrap/golden/fixtures.ts

@@ -0,0 +1,56 @@
+export type GoldenCase = {
+  id: string;
+  text: string;
+  lang: 'TC' | 'EN';
+  context: 'APP' | 'WIDGET';
+  availableWidth: number;
+  maxLines: number;
+  expected: { lines: string[]; wrappedText: string };
+};
+
+/**
+ * Golden fixtures（首版最小可运行集）
+ *
+ * 说明：
+ * - APP：测量 mock=string.length，因此 availableWidth 也是“字符数单位”
+ * - WIDGET：widthMode=APPROX，因此 availableWidth 是“token 数单位”
+ */
+export const GOLDEN_CASES: GoldenCase[] = [
+  {
+    id: 'en_app_simple_2lines',
+    text: 'I am so tired',
+    lang: 'EN',
+    context: 'APP',
+    availableWidth: 7,
+    maxLines: 2,
+    expected: { lines: ['I am so', 'tired'], wrappedText: 'I am so\ntired' },
+  },
+  {
+    id: 'en_app_punct_keyword',
+    text: 'but, still ok',
+    lang: 'EN',
+    context: 'APP',
+    availableWidth: 9,
+    maxLines: 2,
+    expected: { lines: ['but,', 'still ok'], wrappedText: 'but,\nstill ok' },
+  },
+  {
+    id: 'tc_app_punct_2lines',
+    text: '我好累，😮‍💨',
+    lang: 'TC',
+    context: 'APP',
+    availableWidth: 6,
+    maxLines: 2,
+    expected: { lines: ['我好累，', '😮‍💨'], wrappedText: '我好累，\n😮‍💨' },
+  },
+  {
+    id: 'tc_widget_approx_2lines',
+    text: '我好累',
+    lang: 'TC',
+    context: 'WIDGET',
+    availableWidth: 2,
+    maxLines: 2,
+    expected: { lines: ['我', '好累'], wrappedText: '我\n好累' },
+  },
+];
+