1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/S15.5.3.1_A4.js b/js/src/tests/test262/built-ins/String/prototype/S15.5.3.1_A4.js
new file mode 100644
index 0000000000..a4e7014e42
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/S15.5.3.1_A4.js
@@ -0,0 +1,33 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: The String.prototype property has the attribute ReadOnly
+es5id: 15.5.3.1_A4
+description: Checking if varying the String.prototype property fails
+includes: [propertyHelper.js]
+---*/
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (!(String.hasOwnProperty('prototype'))) {
+  throw new Test262Error('#1: String.hasOwnProperty(\'prototype\') return true. Actual: ' + String.hasOwnProperty('prototype'));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+var __obj = String.prototype;
+
+verifyNotWritable(String, "prototype", null, function() {
+  return "shifted";
+});
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#2
+if (String.prototype !== __obj) {
+  throw new Test262Error('#2: __obj = String.prototype; String.prototype = function(){return "shifted";}; String.prototype === __obj. Actual: String.prototype ===' + String.prototype);
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);