From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0
---
dom/base/test/test_window_extensible.html | 46 +++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 dom/base/test/test_window_extensible.html
(limited to 'dom/base/test/test_window_extensible.html')
diff --git a/dom/base/test/test_window_extensible.html b/dom/base/test/test_window_extensible.html
new file mode 100644
index 000000000..5f9f09291
--- /dev/null
+++ b/dom/base/test/test_window_extensible.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html>
+<!--
+https://bugzilla.mozilla.org/show_bug.cgi?id=856384
+-->
+<head>
+ <meta charset="UTF-8">
+ <title>Test for Bug 856384</title>
+ <script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
+ <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
+</head>
+<body>
+<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=856384">Mozilla Bug 856384</a>
+<p id="display"></p>
+<div id="content" style="display: none">
+</div>
+<iframe name="constructor" src="about:blank"></iframe>
+<pre id="test">
+<script type="application/javascript">
+SimpleTest.waitForExplicitFinish();
+
+function run()
+{
+ is(Object.isExtensible(window), true, "Windows are extensible by default");
+
+ try
+ {
+ Object.preventExtensions(window);
+ throw "didn't throw";
+ }
+ catch (e)
+ {
+ is(e instanceof TypeError, true,
+ "preventExtensions(window) should throw a TypeError, instead got: " + e);
+ is(Object.isExtensible(window), true,
+ 'Windows are extensible after an extensibility "change" attempt');
+ }
+
+ SimpleTest.finish();
+}
+
+window.addEventListener("load", run, false);
+</script>
+</pre>
+</body>
+</html>
--
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