| <script src="../../../resources/js-test-pre.js"></script> |
| <body> |
| <iframe src="../../content/test.mp4" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"></iframe> |
| <script type="text/javascript"> |
| |
| description("Testing that a media document initially starts with an audio layout and then transitions to a video layout."); |
| |
| window.jsTestIsAsync = true; |
| |
| let media; |
| |
| (function runTestIfReady() { |
| const iframe = document.querySelector("iframe"); |
| media = iframe.contentDocument.querySelector("video"); |
| |
| if (!media) { |
| setTimeout(runTestIfReady); |
| return; |
| } |
| |
| // Media initially is laid out as an audio element but then becomes a video. |
| shouldBeTrue("media.classList.contains('audio')"); |
| shouldBecomeEqual("media.classList.contains('video')", "true", () => { |
| debug(""); |
| iframe.remove(); |
| finishJSTest(); |
| }); |
| })(); |
| |
| </script> |
| <script src="../../../resources/js-test-post.js"></script> |
| </body> |
