37 lines
1.2 KiB
HTML
37 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<meta charset="utf-8">
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<title>window.Interface is defined on [[Set]] receiver</title>
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<link rel="help" href="https://webidl.spec.whatwg.org/#define-the-global-property-references">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script>
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"use strict";
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const testValue = Object.freeze(function() {});
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test(() => {
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window.Window = testValue;
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assert_false(window.propertyIsEnumerable("Window"));
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window.History = testValue;
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assert_false(window.propertyIsEnumerable("History"));
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window.HTMLDivElement = testValue;
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assert_false(window.propertyIsEnumerable("HTMLDivElement"))
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}, "Direct [[Set]] preserves [[Enumerable]]: false property attribute");
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test(() => {
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const heir = Object.create(window);
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heir.Location = testValue;
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assert_equals(heir.Location, testValue);
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assert_not_equals(window.Location, testValue);
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heir.HTMLDocument = testValue;
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assert_equals(heir.HTMLDocument, testValue);
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assert_not_equals(window.HTMLDocument, testValue);
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heir.HTMLPreElement = testValue;
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assert_equals(heir.HTMLPreElement, testValue);
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assert_not_equals(window.HTMLPreElement, testValue);
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}, "Prototype chain [[Set]] creates property on receiver");
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</script>
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