1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-15.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-15.js
new file mode 100644
index 0000000000..5e0bea2c89
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-15.js
@@ -0,0 +1,14 @@
+// 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 a string
+    containing a negative number
+---*/
+
+assert.sameValue([0, "-2", 2].lastIndexOf("-2", "-2"), 1, '[0, "-2", 2].lastIndexOf("-2", "-2")');
+assert.sameValue([0, 2, "-2"].lastIndexOf("-2", "-2"), -1, '[0, 2, "-2"].lastIndexOf("-2", "-2")');
+
+reportCompare(0, 0);