test_bug513439.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=513439

-->

<head>

  <title>Test for Bug 513439</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=513439">Mozilla Bug 513439</a>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

<script type="application/javascript">

/** Test for Bug 513439 */

SimpleTest.waitForExplicitFinish();

SpecialPowers.pushPrefEnv({set: [["layout.css.devPixelsPerPx", "2"]]}, () => {

  is(window.devicePixelRatio, 2, "devPixelsPerPx wasn't set correctly");

  SpecialPowers.pushPrefEnv({set: [["layout.css.devPixelsPerPx", "1.5"]]}, () => {

    is(window.devicePixelRatio, 1.5, "devPixelsPerPx wasn't set correctly");

    SimpleTest.finish();

});

});

</script>

</pre>

</body>

</html>