<!DOCTYPE HTML> <html> <!-- https://bugzilla.mozilla.org/show_bug.cgi?id=1242594 --> <head> <meta charset='utf-8'> <title>Bug 1242594 - Unbind a video element with HTMLTrackElement should not remove the TextTrack</title> <script type="text/javascript" src="/MochiKit/MochiKit.js"></script> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/> </head> <body> <p id="display"></p> <div id="content"> </div> <pre id="test"> <script class="testbody" type="text/javascript"> SimpleTest.waitForExplicitFinish(); var video = document.createElement("video"); video.src = "seek.webm"; video.preload = "auto"; var trackElement = document.createElement("track"); trackElement.src = "basic.vtt"; trackElement.kind = "subtitles"; document.getElementById("content").appendChild(video); video.appendChild(trackElement); // Bug 1242599, access video.textTracks.length immediately after // the track element binds into the media element. is(video.textTracks.length, 1, "Video should have one TextTrack."); var parent = video.parentNode; parent.removeChild(video); is(video.textTracks.length, 1, "After unbind the video element, should have one TextTrack."); parent.appendChild(video); is(video.textTracks.length, 1, "After bind the video element, should have one TextTrack."); SimpleTest.finish(); </script> </pre> </body> </html>