refactor testing

test/nuxt/index-page.spec.js

@@ -2,6 +2,8 @@ import { describe, it, expect } from 'vitest'
 import { mountSuspended, registerEndpoint } from '@nuxt/test-utils/runtime'
 import Index from '../../app/pages/index.vue'
 
+const wait = (ms = 150) => new Promise(r => setTimeout(r, ms))
+
 describe('index page', () => {
   it('renders map and uses cameras', async () => {
     registerEndpoint('/api/cameras', () => ({
@@ -11,7 +13,7 @@ describe('index page', () => {
     registerEndpoint('/api/pois', () => [])
     registerEndpoint('/api/me', () => null, { method: 'GET' })
     const wrapper = await mountSuspended(Index)
-    await new Promise(r => setTimeout(r, 150))
+    await wait()
     expect(wrapper.findComponent({ name: 'KestrelMap' }).exists()).toBe(true)
   })
 })