<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="width: 320px; height: 240px;" controls></video>
<div id="shadow"></div>
<script type="text/javascript">

window.jsTestIsAsync = true;

description("Testing the <code>MuteSupport</code> behavior by using the media API.");

const shadowRoot = document.querySelector("div#shadow").attachShadow({ mode: "open" });
const media = document.querySelector("video");
const mediaController = createControls(shadowRoot, media, null);

shouldBeFalse("mediaController.controls.muteButton.muted");

let numberOfEvents = 0;
media.addEventListener("volumechange", function() {
    debug("");
    debug("volumechange event was dispatched");

    numberOfEvents++;

    if (numberOfEvents == 1) {
        shouldBeTrue("media.muted");
        shouldBeTrue("mediaController.controls.muteButton.muted");
        media.muted = false;
    } else if (numberOfEvents == 2) {
        shouldBeFalse("media.muted");
        shouldBeFalse("mediaController.controls.muteButton.muted");
        debug("");
        shadowRoot.host.remove();
        media.remove();
        finishJSTest();
    }
});

media.muted = true;

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