test_window_getRegionalPrefsLocales.html

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<!DOCTYPE HTML>

<html>

<!--

https://bugzilla.mozilla.org/show_bug.cgi?id=1337234

-->

<head>

  <title>Test for Bug 1337234</title>

  <script src="chrome://mochikit/content/tests/SimpleTest/SimpleTest.js"></script>

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

</head>

<body>

<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1337234">Mozilla Bug 1337234</a>

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

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

<script>

const localeService =

  Cc["@mozilla.org/intl/localeservice;1"].getService(Ci.mozILocaleService);

let rpLocales = localeService.negotiateLanguages(window.getRegionalPrefsLocales(),

                                                 localeService.availableLocales);

ok(rpLocales.length, "getRegionalPrefsLocales returns at least one locale.");

is(rpLocales[0], "en-US", "The first regional prefs locale should resolve to en-US.");

</script>

</body>

</html>