From 1ffebc774f158b39f74690c43a144783fd241b0d Mon Sep 17 00:00:00 2001
From: Jaybe <master@jaybe.dev>
Date: Fri, 14 Nov 2025 20:29:54 +0900
Subject: [PATCH] test(e2e): add exported-page a11y smoke (focus outline,
 skip-link tab order)

---
 tests/e2e/export-focus-outline.e2e.ts | 42 +++++++++++++++++++++++
 tests/e2e/export-tab-order.e2e.ts     | 49 +++++++++++++++++++++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 tests/e2e/export-focus-outline.e2e.ts
 create mode 100644 tests/e2e/export-tab-order.e2e.ts

diff --git a/tests/e2e/export-focus-outline.e2e.ts b/tests/e2e/export-focus-outline.e2e.ts
new file mode 100644
index 0000000..7f611fa
--- /dev/null
+++ b/tests/e2e/export-focus-outline.e2e.ts
@@ -0,0 +1,42 @@
+import { test, expect } from '@playwright/test'
+
+type WindowWithExport = Window & {
+  __exportPreview?: () => { html: string; css: string; js: string }
+}
+
+const builderUrl = '/en/builder'
+
+// Verify that focus outline tokens from CSS are applied in a real browser context
+// by focusing the submit button in the exported page and inspecting computed styles.
+test('Exported page shows 3px solid outline color on focused button', async ({ page, context }) => {
+  await page.goto(builderUrl)
+  // Minimal content to export
+  await page.getByTestId('card-hero').click()
+
+  await page.waitForFunction(() => Boolean((window as unknown as WindowWithExport).__exportPreview), { timeout: 5000 })
+  const exported = await page.evaluate(() => (window as unknown as WindowWithExport).__exportPreview?.() ?? null)
+  expect(exported).not.toBeNull()
+
+  const preview = await context.newPage()
+  await preview.setContent(exported!.html)
+  await preview.addStyleTag({ content: exported!.css })
+
+  const submit = preview.locator('button[type="submit"]')
+  await expect(submit).toHaveCount(1)
+  await submit.focus()
+
+  // Read computed style in the page context
+  const style = await preview.evaluate(() => {
+    const el = document.querySelector('button[type="submit"]') as HTMLElement | null
+    if (!el) return null
+    const cs = window.getComputedStyle(el)
+    return { outlineWidth: cs.outlineWidth, outlineStyle: cs.outlineStyle, outlineColor: cs.outlineColor }
+  })
+  expect(style).not.toBeNull()
+  // Expect 3px solid and brand color (#2563eb => rgb(37, 99, 235))
+  expect(style!.outlineWidth).toBe('3px')
+  expect(style!.outlineStyle).toBe('solid')
+  expect(style!.outlineColor.replace(/\s+/g, '')).toMatch(/rgb\(37,99,235\)|#2563eb/i)
+
+  await preview.close()
+})
diff --git a/tests/e2e/export-tab-order.e2e.ts b/tests/e2e/export-tab-order.e2e.ts
new file mode 100644
index 0000000..7a1e26b
--- /dev/null
+++ b/tests/e2e/export-tab-order.e2e.ts
@@ -0,0 +1,49 @@
+import { test, expect } from '@playwright/test'
+
+type WindowWithExport = Window & {
+  __exportPreview?: () => { html: string; css: string; js: string }
+}
+
+const builderUrl = '/en/builder'
+
+// Verify tab order after activating the skip-link: focus should move into <main>
+// Then the first Tab should reach a focusable descendant (e.g., form submit button)
+test('Skip-link Enter moves focus into main; next Tab reaches first focusable', async ({ page, context }) => {
+  await page.goto(builderUrl)
+  await page.getByTestId('card-hero').click()
+
+  await page.waitForFunction(() => Boolean((window as unknown as WindowWithExport).__exportPreview), { timeout: 5000 })
+  const exported = await page.evaluate(() => (window as unknown as WindowWithExport).__exportPreview?.() ?? null)
+  expect(exported).not.toBeNull()
+
+  const preview = await context.newPage()
+  await preview.setContent(exported!.html)
+  await preview.addStyleTag({ content: exported!.css })
+
+  const skip = preview.locator('a.skip-link')
+  await expect(skip).toHaveCount(1)
+  await skip.focus()
+  await expect(skip).toBeFocused()
+
+  // Activate skip-link
+  await preview.keyboard.press('Enter')
+
+  // Focus should be inside #main or on #main
+  const focusedInMain = await preview.evaluate(() => {
+    const main = document.getElementById('main')!
+    const active = document.activeElement as HTMLElement | null
+    if (!active) return false
+    return active === main || main.contains(active)
+  })
+  expect(focusedInMain).toBeTruthy()
+
+  // Press Tab and expect a focusable inside main (submit button) to receive focus
+  await preview.keyboard.press('Tab')
+  const isSubmitFocused = await preview.evaluate(() => {
+    const active = document.activeElement as HTMLElement | null
+    return !!active && active.tagName.toLowerCase() === 'button' && (active as HTMLButtonElement).type === 'submit'
+  })
+  expect(isSubmitFocused).toBeTruthy()
+
+  await preview.close()
+})