1 files changed, 42 insertions, 0 deletions
diff --git a/js/src/tests/non262/object/extensibility-02.js b/js/src/tests/non262/object/extensibility-02.js
new file mode 100644
index 0000000000..c61e367281
--- /dev/null
+++ b/js/src/tests/non262/object/extensibility-02.js
@@ -0,0 +1,42 @@
+/*
+ * Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/licenses/publicdomain/
+ * Contributor:
+ *   Jeff Walden <jwalden+code@mit.edu>
+ */
+
+var gTestfile = '15.2.3.4-01.js';
+//-----------------------------------------------------------------------------
+var BUGNUMBER = 492849;
+var summary = 'ES5: Implement Object.preventExtensions, Object.isExtensible';
+
+print(BUGNUMBER + ": " + summary);
+
+/**************
+ * BEGIN TEST *
+ **************/
+
+assertEq(typeof Object.isExtensible, "function");
+assertEq(Object.isExtensible.length, 1);
+
+var slowArray = [1, 2, 3];
+slowArray.slow = 5;
+var objs =
+  [{}, { 1: 2 }, { a: 3 }, [], [1], [, 1], slowArray, function a(){}, /a/];
+
+for (var i = 0, sz = objs.length; i < sz; i++)
+{
+  var o = objs[i];
+  assertEq(Object.isExtensible(o), true, "object " + i + " not extensible?");
+
+  var o2 = Object.preventExtensions(o);
+  assertEq(o, o2);
+
+  assertEq(Object.isExtensible(o), false, "object " + i + " is extensible?");
+}
+
+/******************************************************************************/
+
+reportCompare(true, true);
+
+print("All tests passed!");