restriction-audio-setSinkId.https.tentative.https.html (1964B)
1 <!DOCTYPE html> 2 <title>Access to the setSinkId of the Audio 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="/common/utils.js"></script> 9 <script src="../resources/utils.js"></script> 10 <script src="resources/utils.js"></script> 11 12 <body> 13 <script> 14 setup(() => assertSpeculationRulesIsSupported()); 15 16 promise_test(async t => { 17 const uid = token(); 18 const bc = new PrerenderChannel('test-channel', uid); 19 t.add_cleanup(_ => bc.close()); 20 21 const gotMessage = new Promise(resolve => { 22 bc.addEventListener('message', e => { 23 resolve(e.data); 24 }, { 25 once: true 26 }); 27 }); 28 29 const url = `resources/audio-setSinkId.https.html?sinkId=default&uid=${uid}&target_hint=${getTargetHint()}`; 30 window.open(url, '_blank', 'noopener'); 31 32 const result = await gotMessage; 33 const expected = [ 34 { 35 event: 'started waiting Audio.setSinkId', 36 prerendering: true 37 }, 38 { 39 event: 'prerendering change', 40 prerendering: false 41 }, 42 { 43 event: 'finished waiting Audio.setSinkId', 44 prerendering: false 45 }, 46 ]; 47 // The spec, https://wicg.github.io/nav-speculation/prerendering.html#audio-output-patch, 48 // mentions selectAudioOutput() but this test uses setSinkId() function. 49 assert_equals(result.length, expected.length); 50 for (let i = 0; i < result.length; i++) { 51 assert_equals(result[i].event, expected[i].event, `event${i}`); 52 assert_equals(result[i].prerendering, expected[i].prerendering, 53 `prerendering${i}`); 54 } 55 56 // Send a close signal to PrerenderEventCollector on the prerendered page. 57 new PrerenderChannel('close', uid).postMessage(''); 58 }, `the access to the setSinkId of Audio API should be deferred until the 59 prerendered page is activated`); 60 </script>