75 lines
3.1 KiB
HTML
75 lines
3.1 KiB
HTML
<!doctype html>
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<meta charset=utf-8>
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<title>Indexed properties of the window object (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://webidl.spec.whatwg.org/#getownproperty">
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<link rel="help" href="https://webidl.spec.whatwg.org/#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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"use strict";
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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(function() {
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"use strict";
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assert_throws_js(TypeError, function() {
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window[0] = "foo";
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});
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assert_throws_js(TypeError, () => Object.defineProperty(window, 0, { value: "bar" }))
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assert_throws_js(TypeError, () => Object.defineProperty(window, 0, { get() { return "baz" } }))
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assert_throws_js(TypeError, () => Object.defineProperty(window, 0, { set(v) { return "qux" } }))
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assert_equals(window[0],
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document.getElementsByTagName("iframe")[0].contentWindow);
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assert_throws_js(TypeError, () => delete window[0]);
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});
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test(function() {
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"use strict";
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assert_throws_js(TypeError, function() {
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window[1] = "foo";
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});
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assert_throws_js(TypeError, () => Object.defineProperty(window, 1, { value: "bar" }))
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assert_throws_js(TypeError, () => Object.defineProperty(window, 1, { get() { return "baz" } }))
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assert_throws_js(TypeError, () => Object.defineProperty(window, 1, { set(v) { return "qux" } }))
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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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"use strict";
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assert_throws_js(TypeError, () => { window[4294967294] = 1; });
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assert_false(Reflect.set(window, 4294967294, 2));
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assert_false(Reflect.defineProperty(window, 4294967294, { value: 3 }));
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assert_throws_js(TypeError, () => Object.defineProperty(window, 4294967294, { get: () => 4 }));
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assert_equals(window[4294967294], undefined);
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assert_false(4294967294 in window);
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assert_true(delete window[4294967294]);
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}, "Borderline numeric key: 2 ** 32 - 2 is an index (strict mode)");
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test(function() {
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"use strict";
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window[4294967295] = 1;
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assert_equals(window[4294967295], 1);
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assert_true(Reflect.set(window, 4294967295, 2));
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assert_equals(window[4294967295], 2);
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assert_true(Reflect.defineProperty(window, 4294967295, { value: 3 }));
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assert_equals(window[4294967295], 3);
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Object.defineProperty(window, 4294967295, { get: () => 4 });
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assert_equals(window[4294967295], 4);
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assert_true(delete window[4294967295]);
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assert_false(4294967295 in window);
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}, "Borderline numeric key: 2 ** 32 - 1 is not an index (strict mode)");
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test(function() {
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"use strict";
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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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