test: chromium one shard.

Author: knightedcodemonkey

.github/workflows/playwright.yml

@@ -34,15 +34,10 @@ jobs:
       matrix:
         include:
           - browser: chromium
-            jobName: E2E (Playwright, chromium, shard 1/2)
-            workers: 1
+            jobName: E2E (Playwright, chromium)
+            workers: 2
             shardIndex: 1
-            shardTotal: 2
-          - browser: chromium
-            jobName: E2E (Playwright, chromium, shard 2/2)
-            workers: 1
-            shardIndex: 2
-            shardTotal: 2
+            shardTotal: 1
           - browser: webkit
             jobName: E2E (Playwright, webkit, shard 1/4)
             workers: 1

playwright/helpers/app-test-helpers.ts

@@ -316,15 +316,33 @@ export const ensureDiagnosticsDrawerOpen = async (page: Page) => {
   const isExpanded = await toggle.getAttribute('aria-expanded')
 
   if (isExpanded !== 'true') {
+    const waitForExpanded = async () => {
+      await expect
+        .poll(async () => {
+          return toggle.getAttribute('aria-expanded')
+        })
+        .toBe('true')
+    }
+
     try {
       await toggle.click({ timeout: 2_000 })
+      await waitForExpanded()
     } catch {
       /* WebKit can report pointer interception from the drawer during transitions. */
-      await toggle.focus()
-      await page.keyboard.press('Enter')
+      try {
+        await toggle.focus()
+        await page.keyboard.press('Enter')
+        await waitForExpanded()
+      } catch {
+        /* Fallback for intermittent top-layer/actionability issues. */
+        await toggle.evaluate(element => {
+          if (element instanceof HTMLButtonElement) {
+            element.click()
+          }
+        })
+        await waitForExpanded()
+      }
     }
-
-    await expect(toggle).toHaveAttribute('aria-expanded', 'true')
   }
 
   await expect(page.getByRole('complementary', { name: 'Diagnostics' })).toBeVisible()