1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-23.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-23.js
new file mode 100644
index 0000000000..5b47483aba
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-23.js
@@ -0,0 +1,31 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-array.prototype.lastindexof
+description: >
+    Array.prototype.lastIndexOf - value of 'fromIndex' is an object
+    that has an own valueOf method that returns an object and toString
+    method that returns a string
+---*/
+
+var toStringAccessed = false;
+var valueOfAccessed = false;
+
+var fromIndex = {
+  toString: function() {
+    toStringAccessed = true;
+    return '1';
+  },
+
+  valueOf: function() {
+    valueOfAccessed = true;
+    return {};
+  }
+};
+
+assert.sameValue([0, true].lastIndexOf(true, fromIndex), 1, '[0, true].lastIndexOf(true, fromIndex)');
+assert(toStringAccessed, 'toStringAccessed !== true');
+assert(valueOfAccessed, 'valueOfAccessed !== true');
+
+reportCompare(0, 0);