From ff34b6c28e5b0b1679606d3a1aa0b950c8e80dd7 Mon Sep 17 00:00:00 2001
From: Dudu-0223 <fsyo0223@gmail.com>
Date: Sun, 30 Aug 2026 16:12:43 +0800
Subject: [PATCH] test(web): pin expanded snapshots to bottom

---
 apps/web/tests/scaffold.ts | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/apps/web/tests/scaffold.ts b/apps/web/tests/scaffold.ts
index ffdc5a747a..de15103c84 100644
--- a/apps/web/tests/scaffold.ts
+++ b/apps/web/tests/scaffold.ts
@@ -1196,10 +1196,14 @@ export async function captureExpandedTurnProcessAria(
   try {
     if (options.scrollToBottom === true) {
       const backToBottom = page.getByRole('button', { name: 'Back to bottom', exact: true })
-      if (await backToBottom.isVisible()) {
-        await backToBottom.click()
-        await expect.poll(() => backToBottom.count(), { timeout: 10_000 }).toBe(0)
-      }
+      const scroll = page.locator('[data-conversation-scroll]')
+      await expect.poll(async () => {
+        const distanceFromBottom = await scroll.evaluate((host) => {
+          host.scrollTop = host.scrollHeight
+          return host.scrollHeight - host.clientHeight - host.scrollTop
+        })
+        return Math.abs(distanceFromBottom) <= 1 && await backToBottom.count() === 0
+      }, { timeout: 10_000 }).toBe(true)
     }
     return await captureStableAria(page, selector, workspaceCwd)
   } finally {