Add a test for proto cycle checking on Windows.

web-platform-tests · Jul 28, 2015 · a426a86 · a426a86
1 parent 12d3e15
commit a426a86
Showing 1 changed file with 17 additions and 0 deletions.
diff --git a/js/behaviours/SetPrototypeOf-window.html b/js/behaviours/SetPrototypeOf-window.html
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+<!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, Object.create(window));
+  }, "Setting prototype via setPrototypeOf");
+
+  assert_throws(new TypeError, function() {
+    window.__proto__ = Object.create(window);
+  }, "Setting prototype via __proto__");
+}, "Setting the prototype of a window to something that has the window on its proto chain should throw");
+</script>