test(chapter): [PKG-CHAPTER-HOVER-01] wait for stable fullscreen geometry

test/browser/chapter-hover.ts

@@ -0,0 +1,15 @@
+import type { Page } from '@playwright/test'
+import assert from 'node:assert/strict'
+import process from 'node:process'
+
+export async function hoverProgress(page: Page, percentage: number) {
+  const inner = page.locator('.art-control-progress-inner')
+  if (process.env.ARTPLAYER_CHAPTER_HOVER_BASELINE !== '1')
+    await inner.hover({ trial: true })
+  const box = await inner.boundingBox()
+  assert(box, 'Chapter progress must have a visible box')
+  const x = Math.round(box.x + box.width * percentage)
+  const y = box.y + box.height / 2
+  await page.mouse.move(x, y)
+  return { box, x, y }
+}