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import { expect, test } from '@playwright/test'
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/**
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* 页签栏「点击后滚动居中」的判定回归 —— 针对 **ERP 应用**（不是组件库 playground）。
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*
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* 用户明确的规则：
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* - 点击的页签**左边还有被隐藏的** → 往前滚（居中）
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* - 点击的页签**右边还有被隐藏的** → 往后滚（居中）
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* - 自己被折叠了一部分 → 滚
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* - 自己完整可见、且左右邻域都没被隐藏 → 不滚
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*
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* 报障场景：右侧有多个被隐藏页签（C D F），A 完整可见，点 A 却纹丝不动；
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* 但用户点 A 正是因为「临近末尾，想看后面的」，此时必须滚。
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* 旧实现只看「自己是否完整可见」→ A 完整可见 → return → 不滚。
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*
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* 说明：本用例放在组件库的 e2e 工程里跑（那边已有 Playwright 配置），
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* 通过 ERP_URL 指向已启动的 ERP dev server，避免给 ERP 应用引入 Playwright 依赖。
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*
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* 运行：ERP_URL=http://localhost:5090 npx playwright test e2e/erp-tabbar-reveal.spec.ts
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*/
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const ERP_URL = process.env.ERP_URL ?? 'http://localhost:5090'
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/**
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* 打开足够多的页签，让页签栏溢出。
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*
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* ⚠️ 必须先清掉持久化的页签状态再开：appStore 把已打开页签 persist 到 localStorage，
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* 同一个 origin 下各用例会互相继承上一轮遗留的页签，页签集合随执行顺序变化 →
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* 几何随之改变 → 失败用例在几次运行间「轮换」，看起来像随机失败。
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* 清掉后每个用例都从同一套页签出发，结果才可复现。
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*/
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async function openManyTabs(page: import('@playwright/test').Page) {
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const routes = [
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'/ocean/booking',
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'/ocean/bill',
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'/ocean/schedule',
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'/air/booking',
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'/air/awb',
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'/container/ledger',
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'/container/tracking',
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'/finance/receivable',
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'/finance/payable',
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'/finance/statement',
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]
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// 先访问同源页面，才有权限清 localStorage
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await page.goto(`${ERP_URL}/`)
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await page.evaluate(() => {
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// 只清页签相关键，避免动到其他偏好（key 见 stores/app.ts: STORAGE_KEY）
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for (const key of Object.keys(localStorage)) {
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if (key.startsWith('g3erp:app')) localStorage.removeItem(key)
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}
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})
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await page.reload()
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await page.waitForTimeout(200)
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for (const path of routes) {
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await page.goto(`${ERP_URL}${path}`)
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await page.waitForTimeout(120)
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}
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}
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interface TabGeo {
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key: string
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left: number
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right: number
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fullyVisible: boolean
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}
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interface TabbarState {
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scrollLeft: number
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scrollWidth: number
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clientWidth: number
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overflowed: boolean
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tabs: TabGeo[]
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}
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async function readTabbarState(page: import('@playwright/test').Page): Promise<TabbarState | null> {
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return page.evaluate(() => {
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const track = document.querySelector('.layout-tabbar__track') as HTMLElement | null
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if (!track) return null
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const trackRect = track.getBoundingClientRect()
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const tabs = [...track.querySelectorAll('[data-tab-key]')] as HTMLElement[]
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return {
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scrollLeft: Math.round(track.scrollLeft),
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scrollWidth: track.scrollWidth,
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clientWidth: track.clientWidth,
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overflowed: track.scrollWidth > track.clientWidth,
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tabs: tabs.map((el) => {
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const r = el.getBoundingClientRect()
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return {
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key: el.dataset.tabKey ?? '',
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left: Math.round(r.left - trackRect.left),
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right: Math.round(r.right - trackRect.left),
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fullyVisible: r.left >= trackRect.left - 1 && r.right <= trackRect.right + 1,
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}
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}),
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}
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})
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}
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test.describe('ERP 页签点击后的滚动居中', () => {
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test('右侧还有被隐藏页签时，点一个完整可见的页签也必须滚动', async ({ page }) => {
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test.setTimeout(120_000)
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await openManyTabs(page)
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const state = await readTabbarState(page)
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expect(state, '页签栏应已渲染').not.toBeNull()
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expect(state!.overflowed, '页签应已溢出（否则本用例无意义）').toBe(true)
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// 诊断：打印实际几何，便于判断为何找不到目标页签
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// eslint-disable-next-line no-console
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console.log('[tabbar-geometry]', JSON.stringify(state, null, 2))
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// 找「自己完整可见、但右侧还有不可见页签」的页签 —— 报障场景。
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//
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// ⚠️ 必须取**最后一个**符合条件的，不能取第一个：
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// 靠最左的页签虽然也「右侧有隐藏」，但它已经在滚动起点，
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// 居中偏移为负、被 Math.max(0, ...) 钳成 0 → 不动是正确行为，用它测会误判。
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// 用户报障的真实场景是「临近末尾时点那一个」，所以取最右侧的合格页签。
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let idx = -1
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for (let i = 0; i < state!.tabs.length; i++) {
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const hasHiddenRight = state!.tabs.slice(i + 1).some((n) => !n.fullyVisible)
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if (state!.tabs[i].fullyVisible && hasHiddenRight) idx = i
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}
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expect(idx, '应存在「完整可见但右侧仍有隐藏页签」的页签').toBeGreaterThanOrEqual(0)
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const target = state!.tabs[idx]
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const before = state!.scrollLeft
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await page.click(`[data-tab-key="${target.key}"]`)
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await page.waitForTimeout(800) // 等平滑滚动结束
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const after = await readTabbarState(page)
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expect(
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after!.scrollLeft,
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`页签 ${target.key} 右侧还有隐藏页签，点击后必须滚动（滚动前 ${before}）`,
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).not.toBe(before)
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// 应被滚到接近居中
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const moved = after!.tabs.find((t) => t.key === target.key)!
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const trackCenter = after!.clientWidth / 2
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const tabCenter = (moved.left + moved.right) / 2
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expect(
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Math.abs(tabCenter - trackCenter),
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`被点页签应接近居中（实际偏离 ${Math.round(Math.abs(tabCenter - trackCenter))}px）`,
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).toBeLessThan(Math.max(140, after!.clientWidth * 0.3))
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})
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test('最后一个页签完整可见时不滚动（避免无谓抽动）', async ({ page }) => {
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test.setTimeout(120_000)
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await openManyTabs(page)
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await page.waitForSelector('.layout-tabbar__track', { state: 'attached' })
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await page.waitForTimeout(300)
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// 注意：轨道末尾有一段 24px 的纯占位 spacer（.layout-tabbar__spacer），
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// 它计入 scrollWidth，所以直接把 scrollLeft 设成 scrollWidth 时，
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// 最后一个页签距右缘还差 24px —— 不会被判为「完整可见」。
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// 这里按「最后一个页签的右边缘贴到轨道右缘」来滚，模拟用户手动滚到最右。
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await page.evaluate(() => {
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const track = document.querySelector('.layout-tabbar__track') as HTMLElement | null
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if (!track) return
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const tabs = [...track.querySelectorAll('[data-tab-key]')] as HTMLElement[]
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const last = tabs[tabs.length - 1]
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if (!last) return
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const trackRect = track.getBoundingClientRect()
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const lastRect = last.getBoundingClientRect()
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// 需要再往右滚的距离
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track.scrollLeft += lastRect.right - trackRect.right
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})
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await page.waitForTimeout(300)
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const state = await readTabbarState(page)
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const last = state!.tabs[state!.tabs.length - 1]
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expect(last.fullyVisible, '滚到最右后最后一个页签应完整可见').toBe(true)
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const before = state!.scrollLeft
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await page.click(`[data-tab-key="${last.key}"]`)
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await page.waitForTimeout(800)
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const after = await readTabbarState(page)
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expect(after!.scrollLeft, '末尾页签完整可见时不应滚动').toBe(before)
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})
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test('左侧还有被隐藏页签时，点击完整可见的页签也应往前滚', async ({ page }) => {
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test.setTimeout(120_000)
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await openManyTabs(page)
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// 等页签栏真的渲染出来再操作（openManyTabs 最后一次 goto 后可能还在挂载）
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await page.waitForSelector('.layout-tabbar__track', { state: 'attached' })
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await page.waitForTimeout(300)
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await page.evaluate(() => {
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const track = document.querySelector('.layout-tabbar__track') as HTMLElement | null
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if (track) track.scrollLeft = track.scrollWidth
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})
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await page.waitForTimeout(300)
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const state = await readTabbarState(page)
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expect(state, '页签栏应已渲染').not.toBeNull()
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// 取**第一个**符合条件的（最靠左、而又左侧有隐藏）：
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// 与用例 1 镜像 —— 那里取最右，这里取最左，才落在能产生有效偏移的位置
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let idx = -1
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for (let i = 0; i < state!.tabs.length; i++) {
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const hasHiddenLeft = state!.tabs.slice(0, i).some((n) => !n.fullyVisible)
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if (state!.tabs[i].fullyVisible && hasHiddenLeft) {
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idx = i
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break
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}
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}
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expect(idx, '应存在「完整可见但左侧仍有隐藏页签」的页签').toBeGreaterThanOrEqual(0)
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const target = state!.tabs[idx]
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const before = state!.scrollLeft
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await page.click(`[data-tab-key="${target.key}"]`)
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await page.waitForTimeout(800)
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const after = await readTabbarState(page)
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expect(
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after!.scrollLeft,
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`页签 ${target.key} 左侧还有隐藏页签，点击后应往前滚（滚动前 ${before}）`,
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).not.toBe(before)
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})
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})
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