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50 lines
2.1 KiB
HTML
50 lines
2.1 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Indexed properties of the window object (non-strict mode)</title>
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<link rel="author" title="Ms2ger" href="ms2ger@gmail.com">
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<link rel="help" href="https://html.spec.whatwg.org/multipage/#window">
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<link rel="help" href="https://html.spec.whatwg.org/multipage/#dom-window-item">
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<link rel="help" href="https://heycam.github.io/webidl/#getownproperty">
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<link rel="help" href="https://heycam.github.io/webidl/#defineownproperty">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<div id=log></div>
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<iframe></iframe>
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<script>
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test(function() {
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assert_false("-1" in window, "-1 not in window");
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assert_equals(window[-1], undefined);
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window[-1] = "foo";
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assert_equals(window[-1], "foo");
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});
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test(() => {
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const desc = Object.getOwnPropertyDescriptor(window, "0");
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assert_true(desc.configurable);
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assert_true(desc.enumerable);
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assert_false(desc.writable);
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}, "Ensure indexed properties have the correct configuration");
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test(function() {
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window[0] = "foo";
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assert_throws(new TypeError(), () => Object.defineProperty(window, 0, { value: "bar" }))
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assert_throws(new TypeError(), () => Object.defineProperty(window, 0, { get() { return "baz" } }))
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assert_throws(new TypeError(), () => Object.defineProperty(window, 0, { set() { return "quz" } }))
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assert_equals(window[0],
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document.getElementsByTagName("iframe")[0].contentWindow);
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assert_equals(delete window[0], false);
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});
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test(function() {
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window[1] = "foo";
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assert_throws(new TypeError(), () => Object.defineProperty(window, 1, { value: "bar" }))
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assert_throws(new TypeError(), () => Object.defineProperty(window, 1, { get() { return "baz" } }))
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assert_throws(new TypeError(), () => Object.defineProperty(window, 1, { set(v) { return "quz" } }))
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assert_equals(window[1], undefined);
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assert_equals(Object.getOwnPropertyDescriptor(window, 1), undefined);
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assert_equals(delete window[1], true);
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});
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test(function() {
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var proto = Window.prototype;
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[-1, 0, 1].forEach(function(idx) {
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assert_false(idx in proto, idx + " in proto");
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});
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});
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</script>
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