test(ActionList): add parent re-render stress test

Author: hectahertz

packages/react/src/ActionList/ActionList.stress.dev.stories.tsx

@@ -48,3 +48,31 @@ export const SingleSelect = () => {
     />
   )
 }
+
+export const ParentRerender = () => {
+  return (
+    <StressTest
+      componentName="ActionList"
+      title="Parent Re-render"
+      description="Parent re-renders without changing item props. Tests context memoization: without useMemo on context values, all items re-render even though nothing changed for them."
+      totalIterations={totalIterations}
+      renderIteration={() => {
+        return (
+          <>
+            <ActionList selectionVariant="single" showDividers role="menu" aria-label="Project">
+              {projects.map((project, index) => (
+                <ActionList.Item key={index} role="menuitemradio" selected={index === 0} aria-checked={index === 0}>
+                  <ActionList.LeadingVisual>
+                    <TableIcon />
+                  </ActionList.LeadingVisual>
+                  {project.name}
+                  <ActionList.Description variant="block">{project.scope}</ActionList.Description>
+                </ActionList.Item>
+              ))}
+            </ActionList>
+          </>
+        )
+      }}
+    />
+  )
+}