interface-prototype-constructor-set-receiver.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /webidl/ecmascript-binding/interface-prototype-constructor-set-receiver.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8">

<title>Interface.prototype.constructor is defined on [[Set]] receiver</title>

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

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

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

<script>

"use strict";

const testValue = Object.freeze(function() {});

test(() => {

  Location.prototype.constructor = testValue;

  assert_false(Location.prototype.propertyIsEnumerable("constructor"));

  HTMLDocument.prototype.constructor = testValue;

  assert_false(HTMLDocument.prototype.propertyIsEnumerable("constructor"));

  HTMLDivElement.prototype.constructor = testValue;

  assert_false(HTMLDivElement.prototype.propertyIsEnumerable("constructor"));

}, "Direct [[Set]] preserves [[Enumerable]]: false property attribute");

test(() => {

  window.constructor = testValue;

  assert_equals(window.constructor, testValue);

  assert_equals(Window.prototype.constructor, Window);

  navigator.constructor = testValue;

  assert_equals(navigator.constructor, testValue);

  assert_equals(Navigator.prototype.constructor, Navigator);

  const span = document.createElement("span");

  span.constructor = testValue;

  assert_equals(span.constructor, testValue);

  assert_equals(HTMLSpanElement.prototype.constructor, HTMLSpanElement);

}, "Prototype chain [[Set]] creates property on receiver");

</script>