1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-6.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-6.js
new file mode 100644
index 0000000000..80cc1a0171
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-5-6.js
@@ -0,0 +1,16 @@
+// 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 when 'fromIndex' isn't passed
+---*/
+
+var arr = [0, 1, 2, 3, 4];
+//'fromIndex' will be set as 4 if not passed by default
+
+assert.sameValue(arr.lastIndexOf(0), arr.lastIndexOf(0, 4), 'arr.lastIndexOf(0)');
+assert.sameValue(arr.lastIndexOf(2), arr.lastIndexOf(2, 4), 'arr.lastIndexOf(2)');
+assert.sameValue(arr.lastIndexOf(4), arr.lastIndexOf(4, 4), 'arr.lastIndexOf(4)');
+
+reportCompare(0, 0);