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<!DOCTYPE HTML>
<html>
<head>
<title>WebStorage Test: Storage - enumerate and built-in properties</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<div id="log"></div>
<script>
["localStorage", "sessionStorage"].forEach(function(name) {
test(function() {
assert_true(name in window, name + " exist");
var storage = window[name];
storage.clear();
Storage.prototype.prototypeTestKey = "prototypeTestValue";
storage.foo = "bar";
storage.fu = "baz";
storage.batman = "bin suparman";
storage.bar = "foo";
storage.alpha = "beta";
storage.zeta = "gamma";
const enumeratedArray = Object.keys(storage);
enumeratedArray.sort(); // Storage order is implementation-defined.
const expectArray = ["alpha", "bar", "batman", "foo", "fu", "zeta"];
assert_array_equals(enumeratedArray, expectArray);
// 'prototypeTestKey' is not an actual storage key, it is just a
// property set on Storage's prototype object.
assert_equals(storage.length, 6);
assert_equals(storage.getItem("prototypeTestKey"), null);
assert_equals(storage.prototypeTestKey, "prototypeTestValue");
}, name + ": enumerate a Storage object and get only the keys as a result and the built-in properties of the Storage object should be ignored");
test(function() {
const storage = window[name];
storage.clear();
storage.setItem("foo", "bar");
storage.baz = "quux";
storage.setItem(0, "alpha");
storage[42] = "beta";
for (let prop in storage) {
if (!storage.hasOwnProperty(prop))
continue;
const desc = Object.getOwnPropertyDescriptor(storage, prop);
assert_true(desc.configurable);
assert_true(desc.enumerable);
assert_true(desc.writable);
}
const keys = Object.keys(storage);
keys.sort(); // Storage order is implementation-defined.
assert_array_equals(keys, ["0", "42", "baz", "foo"]);
const values = Object.values(storage);
values.sort(); // Storage order is implementation-defined.
assert_array_equals(values, ["alpha", "bar", "beta", "quux"]);
}, name + ": test enumeration of numeric and non-numeric keys");
});
</script>
</body>
</html>
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