1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-a-9.js b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-a-9.js
new file mode 100644
index 0000000000..4d49dddf43
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/lastIndexOf/15.4.4.15-8-a-9.js
@@ -0,0 +1,31 @@
+// 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 -  properties can be added to
+    prototype after current position are visited on an Array-like
+    object
+---*/
+
+var arr = {
+  length: 9
+};
+
+Object.defineProperty(arr, "4", {
+  get: function() {
+    Object.defineProperty(Object.prototype, "1", {
+      get: function() {
+        return Infinity;
+      },
+      configurable: true
+    });
+    return 0;
+  },
+  configurable: true
+});
+
+assert.sameValue(Array.prototype.lastIndexOf.call(arr, Infinity), 1, 'Array.prototype.lastIndexOf.call(arr, Infinity)');
+
+reportCompare(0, 0);