1 files changed, 26 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/String/prototype/lastIndexOf/S15.5.4.8_A1_T9.js b/js/src/tests/test262/built-ins/String/prototype/lastIndexOf/S15.5.4.8_A1_T9.js
new file mode 100644
index 0000000000..942f54a2a4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/String/prototype/lastIndexOf/S15.5.4.8_A1_T9.js
@@ -0,0 +1,26 @@
+// Copyright 2009 the Sputnik authors.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+info: String.prototype.lastIndexOf(searchString, position)
+es5id: 15.5.4.8_A1_T9
+description: >
+    Call lastIndexOf(searchString, position) function with
+    function(){}() argument of string object
+---*/
+
+var __obj = {
+  valueOf: function() {},
+  toString: void 0
+};
+
+//////////////////////////////////////////////////////////////////////////////
+//CHECK#1
+//since ToString(undefined) evaluates to "undefined" indexOf(undefined) evaluates to indexOf("undefined")
+if (new String(__obj).lastIndexOf(function() {}()) !== 0) {
+  throw new Test262Error('#1: __obj = {valueOf:function(){}, toString:void 0}; new String(__obj).lastIndexOf(function(){}()) === 0. Actual: ' + new String(__obj).lastIndexOf(function() {}()));
+}
+//
+//////////////////////////////////////////////////////////////////////////////
+
+reportCompare(0, 0);