<!DOCTYPE HTML> <html> <head> <title>Test basic functionality of VideoPlaybackQuality</title> <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script> <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> </head> <body> <pre id="test"> <script class="testbody" type="text/javascript"> SimpleTest.waitForExplicitFinish(); function test() { var video = document.createElement("video"); ok(!video.getVideoPlaybackQuality, "getVideoPlaybackQuality should be hidden behind a pref"); var accessThrows = false; try { video.getVideoPlaybackQuality(); } catch (e) { accessThrows = true; } ok(accessThrows, "getVideoPlaybackQuality should be hidden behind a pref"); SimpleTest.finish(); } addLoadEvent(function() { SpecialPowers.pushPrefEnv({"set": [ ["media.mediasource.enabled", false], ] }, test); }); </script> </pre> </body> </html>