<!DOCTYPE HTML>
<html>
<head>
  <meta charset="utf-8">
  <title>meta viewport viewport-fit test</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
  <meta name="viewport" content="viewport-fit=cover">
  <script src="viewport_helpers.js"></script>
</head>
<body>
  <p>viewport-fit=cover</p>
  <script type="application/javascript">
    "use strict";

    add_task(async function test1() {
      await SpecialPowers.pushPrefEnv(scaleRatio(1.0));

      let viewportFit = SpecialPowers.getDOMWindowUtils(window).getViewportFitInfo();
      is(viewportFit, "cover", "viewport-fit is cover correctly");

      let elements = document.getElementsByTagName("meta");
      for (let meta of elements) {
        if (meta.getAttribute("name") == "viewport") {
          meta.setAttribute("content", "viewport-fit=contain");
        }
      }

      viewportFit = SpecialPowers.getDOMWindowUtils(window).getViewportFitInfo();
      is(viewportFit, "contain", "viewport-fit is contain correctly");
    });
  </script>
</body>
</html>
