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<!DOCTYPE HTML>
<html>
<head>
<title>WebStorage Test: sessionStorage event - oldValue</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<h1>event_session_oldValue</h1>
<div id="log"></div>
<script>
async_test(function(t) {
sessionStorage.clear();
t.add_cleanup(function() { sessionStorage.clear() });
self.fail = t.step_func(function(msg) {
assert_unreached(msg);
t.done();
});
var expected = [null, 'user1', null]
function onStorageEvent(event) {
assert_equals(event.oldValue, expected.shift());
if (!expected.length) {
t.done();
}
}
window.addEventListener('storage', t.step_func(onStorageEvent), false);
var el = document.createElement("iframe");
el.setAttribute('id', 'ifrm');
el.setAttribute('src', 'resources/session_change_item_iframe.html');
document.body.appendChild(el);
}, "oldvalue property test of session event - Session event is fired due to an invocation of the setItem(), clear() methods.");
</script>
</body>
</html>
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