diff -r 000000000000 -r 6474c204b198 js/src/tests/test262/ch10/10.2/10.2.1/S10.2.1_A5.2_T1.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/tests/test262/ch10/10.2/10.2.1/S10.2.1_A5.2_T1.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,34 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/**
+ * If there is already a property of the variable object with the
+ * name of a declared variable, the value of the property and its attributes
+ * are not changed
+ *
+ * @path ch10/10.2/10.2.1/S10.2.1_A5.2_T1.js
+ * @description Checking existence of the variable object property with formal parameter
+ */
+
+//CHECK#1
+function f1(x){
+  var x;
+  
+  return typeof x;
+}
+
+if(!(f1(1) === "number")){
+  $PRINT('#1: f1(1) === "number"');
+}
+
+//CHECK#2
+function f2(x){
+  var x;
+  
+  return x;
+}
+
+if(!(f2(1) === 1)){
+  $PRINT('#1: f2(1) === 1');
+}
+