<script src="../../../resources/js-test-pre.js"></script>
<script src="../resources/media-controls-loader.js" type="text/javascript"></script>
<body>
<video src="../../content/test.mp4" style="position: absolute; left: 0; top: 0; width: 400px;" autoplay controls muted playsinline></video>
<div id="shadow"></div>
<script type="text/javascript">

window.jsTestIsAsync = true;

description("Testing the <code>TracksSupport</code> behavior with no tracks.");

const media = document.querySelector("video");
const shadowRoot = window.internals.shadowRoot(media);

media.addEventListener("play", function() {
    media.pause();

    shouldBe("shadowRoot.querySelector('button.tracks').getBoundingClientRect().width", "0");

    debug("");
    media.remove();
    finishJSTest();
});

</script>
<script src="../../../resources/js-test-post.js"></script>
</body>