LayoutTests/media/modern-media-controls/volume-support/volume-support-media-api.html

<script src="../../../resources/js-test-pre.js"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/scheduler.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/layout-node.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/layout-item.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/buttons-container.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/icon-service.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/start-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/icon-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/play-pause-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/skip-back-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/airplay-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/pip-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/fullscreen-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/mute-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/tracks-button.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/slider.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/volume-slider.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/scrubber.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/time-label.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/time-control.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/placard.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/airplay-placard.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/pip-placard.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/media-controls.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/macos-media-controls.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/controls/macos-inline-media-controls.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/media-controller-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/elapsed-time-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/mute-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/playback-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/remaining-time-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/scrubbing-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/skip-back-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/start-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/volume-support.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/media/media-controller.js" type="text/javascript"></script>
<script src="../../../../Source/WebCore/Modules/modern-media-controls/main.js" type="text/javascript"></script>
<body>
<video src="../../content/test.mp4" style="width: 320px; height: 240px;"></video>
<div id="shadow"></div>
<script type="text/javascript">

window.jsTestIsAsync = true;

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

iconService.directoryPath = "../../../../Source/WebCore/Modules/modern-media-controls/images";

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

shouldBe("mediaController.controls.volumeSlider.value", "1");

media.addEventListener("volumechange", () => {
    shouldBe("mediaController.controls.volumeSlider.value", "0.5");
    debug("");
    shadowRoot.host.remove();
    media.remove();
    finishJSTest();
});

media.volume = 0.5;

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