1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-4-6.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-4-6.js
new file mode 100644
index 0000000000..a306208a54
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-4-6.js
@@ -0,0 +1,22 @@
+// 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 returns -1 if 'length' is 0
+    (subclassed Array, length overridden with obj with valueOf)
+---*/
+
+var i = Array.prototype.lastIndexOf.call({
+  length: {
+    valueOf: function() {
+      return 0;
+    }
+  }
+}, 1);
+
+
+assert.sameValue(i, -1, 'i');
+
+reportCompare(0, 0);