1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Object/isFrozen/15.2.3.12-2-a-12.js b/js/src/tests/test262/built-ins/Object/isFrozen/15.2.3.12-2-a-12.js
new file mode 100644
index 0000000000..d188de24d1
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Object/isFrozen/15.2.3.12-2-a-12.js
@@ -0,0 +1,17 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+es5id: 15.2.3.12-2-a-12
+description: Object.isFrozen - 'O' is a String object
+---*/
+
+var obj = new String("abc");
+
+obj.len = 100;
+
+Object.preventExtensions(obj);
+
+assert.sameValue(Object.isFrozen(obj), false, 'Object.isFrozen(obj)');
+
+reportCompare(0, 0);