1 files changed, 23 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/preventExtensions/15.2.3.10-3-5.js b/js/src/tests/test262/built-ins/Object/preventExtensions/15.2.3.10-3-5.js
new file mode 100644
index 0000000000..c234615332
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/preventExtensions/15.2.3.10-3-5.js
@@ -0,0 +1,23 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.2.3.10-3-5
+description: >
+    Object.preventExtensions - indexed properties cannot be added into
+    a String object
+---*/
+
+var strObj = new String();
+var preCheck = Object.isExtensible(strObj);
+Object.preventExtensions(strObj);
+assert.throws(TypeError, function() {
+  Object.defineProperty(strObj, "0", {
+    value: "c"
+  });
+});
+assert(preCheck, 'preCheck !== true');
+assert.sameValue(strObj.hasOwnProperty("0"), false, 'strObj.hasOwnProperty("0")');
+assert.sameValue(typeof strObj[0], "undefined", 'typeof strObj[0]');
+
+reportCompare(0, 0);