| <!DOCTYPE html> |
| <html> |
| <head> |
| <meta charset="utf-8"> |
| <title>HTMLMediaElement GC</title> |
| <script src="../../resources/testharness.js"></script> |
| <script src="../../resources/testharnessreport.js"></script> |
| <script src="../../resources/gc.js"></script> |
| <script> |
| let stream; |
| async function createMediaElement(setToNull) |
| { |
| const video = document.createElement('video'); |
| if (!stream) |
| stream = await navigator.mediaDevices.getUserMedia({audio:true}); |
| video.srcObject = stream; |
| video.onclick = () => { }; |
| await video.play().then(() => { }, () => { }); |
| await video.pause(); |
| if (setToNull) |
| video.srcObject = null; |
| await new Promise(resolve => setTimeout(resolve, 0)); |
| } |
| |
| promise_test(async (test) => { |
| if (!window.internals) |
| return; |
| await createMediaElement(false); |
| gc(); |
| assert_equals(internals.mediaElementCount, 1); |
| }, "Keep alive a video element with a live srcObject"); |
| |
| promise_test(async (test) => { |
| if (!window.internals) |
| return; |
| assert_equals(internals.mediaElementCount, 1, "test 1"); |
| await createMediaElement(true); |
| let counter = 0; |
| while (++counter < 100) { |
| gc(); |
| if (internals.mediaElementCount === 1) |
| break; |
| assert_equals(internals.mediaElementCount, 2, "test 2"); |
| await new Promise(resolve => setTimeout(resolve, 50)); |
| } |
| assert_equals(internals.mediaElementCount, 1, "test 3"); |
| }, "GC a video element with a live srcObject, then srcObject set to null"); |
| </script> |
| </head> |
| <body> |
| </body> |
| </html> |
