https://github.com/web-platform-tests/wpt
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Tip revision: 2839cd992b9bc44e54b2f1b229ead4c0d6b6712f authored by Aryeh Gregor on 12 April 2016, 13:36:58 UTC
Test DOMTokenList
Tip revision: 2839cd9
SetPrototypeOf-window.html
<!DOCTYPE html>
<meta charset=utf-8>
<title>Test for [[SetPrototypeOf]] with Windows</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>
<script>
test(function() {
  assert_throws(new TypeError, function() {
    Object.setPrototypeOf(window, window);
  }, "Setting the prototype should throw");
}, "Setting the prototype of a window to itself via setPrototypeOf");

test(function() {
  assert_throws(new TypeError, function() {
    window.__proto__ = window;
  }, "Setting the prototype should throw");
}, "Setting the prototype of a window to itself via __proto__");

test(function() {
  assert_throws(new TypeError, function() {
    Object.setPrototypeOf(window, Object.create(window));
  }, "Setting the prototype should throw");
}, "Setting the prototype of a window to something that has the window on " +
   "its proto chain via setPrototypeOf");

test(function() {
  assert_throws(new TypeError, function() {
    window.__proto__ = Object.create(window);
  }, "Setting the prototype should throw");
}, "Setting the prototype of a window to something that has the window on " +
   "its proto chain via __proto__");
</script>
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