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<head>
<title>sessionStorage basic test</title>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
<script type="text/javascript">
var expectedEvents = [
"empty,null,",
"empty,,null",
"key1,null,value1",
"key1,value1,null",
"key1,null,value1",
"key2,null,value2",
"key2,value2,value2-2",
"key1,value1,value1-2",
"key2,value2-2,null",
"null,null,null"
];
function setup() {
sessionStorage.clear();
SimpleTest.executeSoon(startTest);
}
function startTest()
{
// Initially check the sessionStorage is empty
is(sessionStorage.length, 0, "The storage is empty [1]");
is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("nonexisting"), null, "Nonexisting item is null (getItem())");
is(sessionStorage.nonexisting, undefined, "Nonexisting item is undefined (array access)");
is(sessionStorage.nonexisting, undefined, "Nonexisting item is undefined (property access)");
sessionStorage.removeItem("nonexisting"); // Just check there is no exception
is(typeof sessionStorage.getItem("nonexisting"), "object", "getItem('nonexisting') is object");
is(typeof sessionStorage.nonexisting, "undefined", "['nonexisting'] is undefined");
is(typeof sessionStorage.nonexisting, "undefined", "nonexisting is undefined");
is(typeof sessionStorage.getItem("nonexisting2"), "object", "getItem('nonexisting2') is object");
is(typeof sessionStorage.nonexisting2, "undefined", "['nonexisting2'] is undefined");
is(typeof sessionStorage.nonexisting2, "undefined", "nonexisting2 is undefined");
var sessionStorageCopy = sessionStorage;
function onStorageChanged(e) {
if (e.storageArea == sessionStorageCopy) {
ok(expectedEvents.length, "Not more then expected events encountered");
var receivedEvent = e.key + "," + e.oldValue + "," + e.newValue;
is(receivedEvent, expectedEvents.shift(), "Expected event data: " + receivedEvent);
}
}
// Listen for MozSessionStorageChanged
SpecialPowers.addChromeEventListener("MozSessionStorageChanged", onStorageChanged, true);
// add an empty-value key
sessionStorage.setItem("empty", "");
is(sessionStorage.getItem("empty"), "", "Empty value (getItem())");
is(sessionStorage.empty, "", "Empty value (array access)");
is(sessionStorage.empty, "", "Empty value (property access)");
is(typeof sessionStorage.getItem("empty"), "string", "getItem('empty') is string");
is(typeof sessionStorage.empty, "string", "['empty'] is string");
is(typeof sessionStorage.empty, "string", "empty is string");
sessionStorage.removeItem("empty");
is(sessionStorage.length, 0, "The storage has no keys");
is(sessionStorage.getItem("empty"), null, "empty item is null (getItem())");
is(sessionStorage.empty, undefined, "empty item is undefined (array access)");
is(sessionStorage.empty, undefined, "empty item is undefined (property access)");
is(typeof sessionStorage.getItem("empty"), "object", "getItem('empty') is object");
is(typeof sessionStorage.empty, "undefined", "['empty'] is undefined");
is(typeof sessionStorage.empty, "undefined", "empty is undefined");
// add one key, check it is there
sessionStorage.setItem("key1", "value1");
is(sessionStorage.length, 1, "The storage has one key-value pair");
is(sessionStorage.key(0), "key1");
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");
// check all access method give the correct result
// and are of the correct type
is(sessionStorage.getItem("key1"), "value1", "getItem('key1') == value1");
is(sessionStorage.key1, "value1", "['key1'] == value1");
is(sessionStorage.key1, "value1", "key1 == value1");
is(typeof sessionStorage.getItem("key1"), "string", "getItem('key1') is string");
is(typeof sessionStorage.key1, "string", "['key1'] is string");
is(typeof sessionStorage.key1, "string", "key1 is string");
// remove the previously added key and check the storage is empty
sessionStorage.removeItem("key1");
is(sessionStorage.length, 0, "The storage is empty [2]");
is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("key1"), null, "\'key1\' removed");
is(typeof sessionStorage.getItem("key1"), "object", "getItem('key1') is object");
is(typeof sessionStorage.key1, "undefined", "['key1'] is undefined");
is(typeof sessionStorage.key1, "undefined", "key1 is undefined");
// add one key, check it is there
sessionStorage.setItem("key1", "value1");
is(sessionStorage.length, 1, "The storage has one key-value pair");
is(sessionStorage.key(0), "key1");
is(sessionStorage.getItem("key1"), "value1");
// add a second key
sessionStorage.setItem("key2", "value2");
is(sessionStorage.length, 2, "The storage has two key-value pairs");
is(sessionStorage.getItem("key1"), "value1");
is(sessionStorage.getItem("key2"), "value2");
var firstKey = sessionStorage.key(0);
var secondKey = sessionStorage.key(1);
ok((firstKey == 'key1' && secondKey == 'key2') ||
(firstKey == 'key2' && secondKey == 'key1'),
'key() API works.');
// change the second key
sessionStorage.setItem("key2", "value2-2");
is(sessionStorage.length, 2, "The storage has two key-value pairs");
is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved
is(sessionStorage.key(1), secondKey);
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("key1"), "value1");
is(sessionStorage.getItem("key2"), "value2-2");
// change the first key
sessionStorage.setItem("key1", "value1-2");
is(sessionStorage.length, 2, "The storage has two key-value pairs");
is(sessionStorage.key(0), firstKey); // After key value changes the order must be preserved
is(sessionStorage.key(1), secondKey);
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(2), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("key1"), "value1-2");
is(sessionStorage.getItem("key2"), "value2-2");
// remove the second key
sessionStorage.removeItem("key2");
is(sessionStorage.length, 1, "The storage has one key-value pair");
is(sessionStorage.key(0), "key1");
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("key1"), "value1-2");
// Clear the storage
sessionStorage.clear();
is(sessionStorage.length, 0, "The storage is empty [3]");
is(sessionStorage.key(0), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(-1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.key(1), null, "key() should return null for out-of-bounds access");
is(sessionStorage.getItem("nonexisting"), null, "Nonexisting item is null");
is(sessionStorage.getItem("key1"), null, "key1 removed");
is(sessionStorage.getItem("key2"), null, "key2 removed");
sessionStorage.removeItem("nonexisting"); // Just check there is no exception
sessionStorage.removeItem("key1"); // Just check there is no exception
sessionStorage.removeItem("key2"); // Just check there is no exception
SimpleTest.executeSoon(function () {
SpecialPowers.removeChromeEventListener("MozSessionStorageChanged", onStorageChanged, true);
is(expectedEvents.length, 0, "received the correct number of events");
sessionStorage.clear();
SimpleTest.finish();
});
}
SimpleTest.waitForExplicitFinish();
</script>
</head>
<body onload="setup();">
</body>
</html>