test: another attempt to fix sw test #2201

test/assets/serviceworkers/fetch/sw.html

@@ -1,4 +1,5 @@
 <link rel="stylesheet" href="./style.css">
 <script>
   window.registrationPromise = navigator.serviceWorker.register('sw.js');
+  window.activationPromise = new Promise(resolve => navigator.serviceWorker.oncontrollerchange = resolve);
 </script>

test/assets/serviceworkers/fetch/sw.js

@@ -1,3 +1,7 @@
 self.addEventListener('fetch', event => {
   event.respondWith(fetch(event.request));
 });
+
+self.addEventListener('activate', event => {
+  event.waitUntil(clients.claim());
+});

test/test.js

@@ -2855,7 +2855,7 @@ describe('Page', function() {
 
       // Load and re-load to make sure serviceworker is installed and running.
       await page.goto(server.PREFIX + '/serviceworkers/fetch/sw.html', {waitUntil: 'networkidle2'});
-      await page.evaluate(async() => await window.registrationPromise);
+      await page.evaluate(async() => await window.activationPromise);
       await page.reload();
 
       expect(responses.size).toBe(2);
@@ -3766,6 +3766,7 @@ describe('Page', function() {
     it('should report when a service worker is created and destroyed', async({page, server, browser}) => {
       await page.goto(server.EMPTY_PAGE);
       const createdTarget = new Promise(fulfill => browser.once('targetcreated', target => fulfill(target)));
+
       await page.goto(server.PREFIX + '/serviceworkers/empty/sw.html');
 
       expect((await createdTarget).type()).toBe('service_worker');