1 files changed, 23 insertions, 0 deletions
diff --git a/test/built-ins/String/prototype/S15.5.4_A1.js b/test/built-ins/String/prototype/S15.5.4_A1.js
new file mode 100644
index 000000000..1b69a4ebd
--- /dev/null
+++ b/test/built-ins/String/prototype/S15.5.4_A1.js
@@ -0,0 +1,23 @@
+// 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 object is itself not a String object (its [[Class]]
+    is "Object")
+es5id: 15.5.4_A1
+description: >
+    first we delete String.prototype.toString cause it overrides
+    Object prototype toString.  Object.prototype.toString returns
+    [object+[[class]]+]
+---*/
+
+delete String.prototype.toString;
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+if (String.prototype.toString() !== "[object "+"Object"+"]") {
+  $ERROR('#1: delete String.prototype.toString; String.prototype.toString() === "[object "+"Object"+"]". Actual: String.prototype.toString() ==='+String.prototype.toString() );
+}
+//
+//////////////////////////////////////////////////////////////////////////////