test_localStorageKeyOrder.html

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<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<title>localStorage key order test</title>

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

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

<!--

  Check we preserve order of keys in localStorage when

  keys are just modified. When a new key is added or

  a key is removed order is again unspecified.

-->

<script type="text/javascript">

function startTest()

try

    var keyNames = new Array;

    localStorage.a = "1";

    localStorage.b = "2";

    localStorage.c = "3";

    localStorage.d = "4";

    localStorage.e = "5";

    is(localStorage.a, "1", "a = 1");

    is(localStorage.b, "2", "b = 2");

    is(localStorage.c, "3", "c = 3");

    is(localStorage.d, "4", "d = 4");

    is(localStorage.e, "5", "e = 5");

    is(localStorage.length, 5, "length = 5");

    for (var i = 0; i < localStorage.length; ++i)

      keyNames[i] = localStorage.key(i);

    localStorage.a = "10";

    localStorage.b = "20";

    localStorage.c = "30";

    localStorage.d = "40";

    localStorage.e = "50";

    is(localStorage.a, "10", "a = 10");

    is(localStorage.b, "20", "b = 20");

    is(localStorage.c, "30", "c = 30");

    is(localStorage.d, "40", "d = 40");

    is(localStorage.e, "50", "e = 50");

    is(localStorage.length, 5, "length = 5");

    for (var i = 0; i < localStorage.length; ++i)

      is(keyNames[i], localStorage.key(i), "key "+keyNames[i]+" on same index");

    keyNamesStringify = "[\"" + keyNames.join("\",\"") + "\"]";

    frame.location = "http://mochi.test:8888/tests/dom/tests/mochitest/localstorage/frameOrder.html?" +

      keyNamesStringify;

  catch (ex)

    localStorage.clear();

    throw ex;

SimpleTest.waitForExplicitFinish();

</script>

</head>

<body onload="startTest();">

  <iframe src="" name="frame"></frame>

</body>

</html>