diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch13/13.0/S13_A12_T1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch13/13.0/S13_A12_T1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * Function declarations in global or function scope are {DontDelete}
+ *
+ * @path ch13/13.0/S13_A12_T1.js
+ * @description Checking if deleting a function that is declared in global scope fails
+ */
+
+ALIVE="Letov is alive"
+
+function __func(){
+    return ALIVE;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (delete __func) {
+	$ERROR('#1: delete __func returning false');
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (__func() !== ALIVE) {
+	$ERROR('#2: __func() === ALIVE. Actual: __func() ==='+__func());
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+