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<head>
<script>
if (window.testRunner)
testRunner.dumpAsText();
function test(message, success)
{
var li = document.createElement("li");
var text = document.createTextNode(message + ': ' + (success ? 'PASS' : 'FAIL'));
li.appendChild(text);
document.getElementById("console").appendChild(li);
}
function runTest()
{
var languages = internals.userPreferredLanguages();
test('internals.userPreferredLanguages returns a non-empty array', languages.length);
languages.unshift("first-language");
languages.push("last-language");
internals.setUserPreferredLanguages(languages);
var newLanguages = internals.userPreferredLanguages();
var sameContents = newLanguages.length == languages.length;
if (sameContents) {
for (var i = 0; i < newLanguages.length; i++) {
if (newLanguages[i] != languages[i]) {
sameContents = false;
break;
}
}
}
test('internals.userPreferredLanguages is mutable, and returns the same value passed to it', sameContents);
}
</script>
</head>
<body onload="runTest()">
<p>This test verifies that internals.userPreferredLanguages returns a mutable Array of the user's preferred languages.</p>
<ul id="console"></ul>
</body>
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