1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-2.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-2.js
new file mode 100644
index 0000000000..025ec6cb7a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-3-2.js
@@ -0,0 +1,20 @@
+// 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 return -1 when value of 'length' is a
+    boolean (value is true)
+---*/
+
+var obj = {
+  0: 0,
+  1: 1,
+  length: true
+};
+
+assert.sameValue(Array.prototype.lastIndexOf.call(obj, 0), 0, 'Array.prototype.lastIndexOf.call(obj, 0)');
+assert.sameValue(Array.prototype.lastIndexOf.call(obj, 1), -1, 'Array.prototype.lastIndexOf.call(obj, 1)');
+
+reportCompare(0, 0);