restriction-background-sync.https.html (2670B)
1 <!DOCTYPE html> 2 <title>Access to the Background Sync API is deferred</title> 3 <meta name="variant" content="?target_hint=_self"> 4 <meta name="variant" content="?target_hint=_blank"> 5 <meta name="timeout" content="long"> 6 <script src="/resources/testharness.js"></script> 7 <script src="/resources/testharnessreport.js"></script> 8 <script src="/resources/testdriver.js"></script> 9 <script src="/resources/testdriver-vendor.js"></script> 10 <script src="/common/utils.js"></script> 11 <script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script> 12 <script src="../resources/utils.js"></script> 13 <script src="resources/utils.js"></script> 14 15 <body> 16 <script> 17 setup(() => assertSpeculationRulesIsSupported()); 18 19 promise_test(async t => { 20 const uid = token(); 21 const bc = new PrerenderChannel('test-channel', uid); 22 t.add_cleanup(_ => bc.close()); 23 24 const gotMessage = new Promise(resolve => { 25 bc.addEventListener('message', e => { 26 resolve(e.data); 27 }, { 28 once: true 29 }); 30 }); 31 32 // We grant the permission here to make a more discerning test because 33 // periodicSync.register() waits until the permission is granted, which 34 // is deferred during prerendering so the test would trivially pass without 35 // the permission. 36 await test_driver.set_permission({name: 'periodic-background-sync'}, 'granted'); 37 38 // Install the service worker first to test periodicSync.register in the 39 // prerendering page. 40 const scope = `resources/`; 41 const script = `resources/do-nothing-worker.js`; 42 const registration = 43 await service_worker_unregister_and_register(t, script, scope); 44 t.add_cleanup(() => registration.unregister()); 45 await wait_for_state(t, registration.installing, 'activated'); 46 47 const url = `resources/background-sync.https.html?uid=${uid}&target_hint=${getTargetHint()}`; 48 window.open(url, '_blank', 'noopener'); 49 50 const result = await gotMessage; 51 const expected = [ 52 {event: 'started waiting periodicSync.register', prerendering: true}, 53 {event: 'prerendering change', prerendering: false}, 54 {event: 'finished waiting periodicSync.register', prerendering: false}, 55 ]; 56 assert_equals(result.length, expected.length); 57 for (let i = 0; i < result.length; i++) { 58 assert_equals(result[i].event, expected[i].event, `event[${i}]`); 59 assert_equals(result[i].prerendering, expected[i].prerendering, 60 `prerendering[${i}]`); 61 } 62 63 // Send a close signal to PrerenderEventCollector on the prerendered page. 64 new PrerenderChannel('close', uid).postMessage(''); 65 }, `The access to the Background Sync API should be deferred until the 66 prerendered page is activated`); 67 </script>