test: move waitForServiceWorker to test fixture

test-e2e/byte-range.test.ts

@@ -1,20 +1,12 @@
 import { test, expect } from '@playwright/test'
+import { waitForServiceWorker } from './fixtures/wait-for-service-worker.js'
 
 test.describe('byte-ranges', () => {
   test('should be able to get a single character', async ({ page }) => {
     await page.goto('http://localhost:3000', { waitUntil: 'networkidle' })
     // wait for service worker to load
-    await page.evaluate(async () => {
-      const registration = await window.navigator.serviceWorker.getRegistration()
+    await waitForServiceWorker(page)
 
-      if (registration?.active?.state === 'activated') {
-        return
-      }
-
-      await new Promise((resolve, reject) => {
-        window.navigator.serviceWorker.addEventListener('controllerchange', resolve)
-      })
-    })
     const partialText = await page.evaluate(async () => {
       const response = await fetch('/ipfs/bafkqaddimvwgy3zao5xxe3debi', { headers: { range: 'bytes=1-2' } })
       const text = await response.text()

test-e2e/fixtures/wait-for-service-worker.ts

@@ -0,0 +1,15 @@
+import type { Page } from '@playwright/test'
+
+export async function waitForServiceWorker (page: Page): Promise<void> {
+  await page.evaluate(async () => {
+    const registration = await window.navigator.serviceWorker.getRegistration()
+
+    if (registration?.active?.state === 'activated') {
+      return
+    }
+
+    await new Promise((resolve, reject) => {
+      window.navigator.serviceWorker.addEventListener('controllerchange', resolve)
+    })
+  })
+}