window-named-properties.html

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This WPT test may be referenced by the following Test IDs:
- /html/browsers/the-window-object/named-access-on-the-window-object/window-named-properties.html - WPT Dashboard Interop Dashboard

<!doctype html>

<meta charset=utf-8>

<title>Changes to named properties of the window object</title>

<link rel="author" title="Ms2ger" href="ms2ger@gmail.com">

<link rel="author" title="Boris Zbarsky" href="bzbarsky@mit.edu">

<link rel="help" href="https://html.spec.whatwg.org/multipage/#window">

<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-window-nameditem">

<link rel="help" href="https://webidl.spec.whatwg.org/#named-properties-object">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<div id=log></div>

<iframe name="bar"></iframe>

<iframe name="baz"></iframe>

<iframe name="baz"></iframe>

<iframe name="constructor"></iframe>

<iframe id="quux"></iframe>

<script>

function assert_data_propdesc(pd, Writable, Enumerable, Configurable) {

  assert_equals(typeof pd, "object");

  assert_equals(pd.writable, Writable);

  assert_equals(pd.enumerable, Enumerable);

  assert_equals(pd.configurable, Configurable);

test(function() {

  assert_true("bar" in window, "bar not in window");

  assert_equals(window["bar"],

                document.getElementsByTagName("iframe")[0].contentWindow);

}, "Static name");

test(function() {

  assert_true("quux" in window, "quux not in window");

  assert_equals(window["quux"],

                document.getElementsByTagName("iframe")[4]);

}, "Static id");

test(function() {

  assert_true("bar" in Window.prototype, "bar in Window.prototype");

  assert_false(Window.prototype.hasOwnProperty("bar"), "Window.prototype.hasOwnProperty(\"bar\")");

  var gsp = Object.getPrototypeOf(Object.getPrototypeOf(window));

  assert_true("bar" in gsp, "bar in gsp");

  assert_true(gsp.hasOwnProperty("bar"), "gsp.hasOwnProperty(\"bar\")");

  assert_data_propdesc(Object.getOwnPropertyDescriptor(gsp, "bar"),

                       true, false, true);

}, "Static name on the prototype");

test(function() {

  assert_equals(window.constructor, Window);

  assert_false(window.hasOwnProperty("constructor"), "window.constructor should not be an own property.");

  var proto = Object.getPrototypeOf(window);

  assert_equals(proto.constructor, Window);

  assert_true("constructor" in proto, "constructor in proto");

  assert_data_propdesc(Object.getOwnPropertyDescriptor(proto, "constructor"),

                       true, false, true);

  var gsp = Object.getPrototypeOf(proto);

  assert_true("constructor" in gsp, "constructor in gsp");

  assert_false(gsp.hasOwnProperty("constructor"), "gsp.hasOwnProperty(\"constructor\")");

  assert_equals(Object.getOwnPropertyDescriptor(gsp, "constructor"), undefined);

}, "constructor");

test(function() {

  var gsp = Object.getPrototypeOf(Object.getPrototypeOf(window));

  assert_equals(gsp.baz, document.getElementsByTagName("iframe")[1].contentWindow);

}, "duplicate property names")

var t = async_test("Dynamic name")

var t2 = async_test("Ghost name")

t.step(function() {

  var iframe = document.getElementsByTagName("iframe")[0];

  iframe.setAttribute("srcdoc", "<script>window.name='foo'<\/script>");

  iframe.onload = function() {

    t.step(function() {

      assert_true("foo" in window, "foo not in window");

      assert_equals(window["foo"], iframe.contentWindow);

});

    t.done();

    t2.step(function() {

      assert_false("bar" in window, "bar still in window");

      assert_equals(window["bar"], undefined);

});

    t2.done();

};

});

</script>