1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-ii-4.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-ii-4.js
new file mode 100644
index 0000000000..5d001f88a8
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-b-ii-4.js
@@ -0,0 +1,11 @@
+// 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 - search element is NaN
+---*/
+
+assert.sameValue([+NaN, NaN, -NaN].lastIndexOf(NaN), -1, '[+NaN, NaN, -NaN].lastIndexOf(NaN)');
+
+reportCompare(0, 0);