| <!DOCTYPE html> |
| <!-- |
| The test aligns with the spec on which behavior is deferred. The test asserts |
| that media resources are not loaded during prerendering, but it's possible the |
| spec will allow loading and only disallow playback. |
| --> |
| <title>Access to the Play of the Media is deferred</title> |
| <meta name="variant" content="?target_hint=_self"> |
| <meta name="variant" content="?target_hint=_blank"> |
| <meta name="timeout" content="long"> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <script src="/common/utils.js"></script> |
| <script src="../resources/utils.js"></script> |
| <script src="resources/utils.js"></script> |
| |
| <body> |
| <script> |
| setup(() => assertSpeculationRulesIsSupported()); |
| |
| function RunTest(type, description) { |
| promise_test(async t => { |
| const uid = token(); |
| const bc = new PrerenderChannel('test-channel', uid); |
| t.add_cleanup(_ => bc.close()); |
| |
| const gotMessage = new Promise(resolve => { |
| bc.addEventListener('message', e => { |
| resolve(e.data); |
| }, { |
| once: true |
| }); |
| }); |
| |
| const url = `resources/media-play.html?type=${type}&uid=${uid}&target_hint=${getTargetHint()}`; |
| window.open(url, '_blank', 'noopener'); |
| |
| const result = await gotMessage; |
| const expected = [ |
| { |
| event: 'started waiting Media.Play', |
| prerendering: true |
| }, |
| { |
| event: 'prerendering change', |
| prerendering: false |
| }, |
| { |
| event: 'fired loadedmetadata event after prerendering is activated', |
| prerendering: false |
| }, |
| { |
| event: 'finished waiting Media.Play', |
| prerendering: false |
| }, |
| ]; |
| |
| assert_equals(result.length, expected.length, `${type}`); |
| for (let i = 0; i < result.length; i++) { |
| assert_equals(result[i].event, expected[i].event, `event${i}`); |
| assert_equals(result[i].prerendering, expected[i].prerendering, |
| `prerendering${i}`); |
| } |
| |
| // Send a close signal to PrerenderEventCollector on the prerendered page. |
| new PrerenderChannel('close', uid).postMessage(''); |
| }, description); |
| } |
| |
| RunTest('audio', `play of the audio media should be deferred until the prerendered page is activated`); |
| |
| RunTest('video', `play of the video media should be deferred until the prerendered page is activated`); |
| </script> |
