1 files changed, 25 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-2-4.js b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-2-4.js
new file mode 100644
index 0000000000..5fb88cd893
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-2-4.js
@@ -0,0 +1,25 @@
+// 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.reduceright
+description: >
+    Array.prototype.reduceRight - 'length' is own data property that
+    overrides an inherited data property on an Array
+---*/
+
+var accessed = false;
+var arrProtoLen;
+
+function callbackfn(prevVal, curVal, idx, obj) {
+  accessed = true;
+  return obj.length === 2;
+}
+
+arrProtoLen = Array.prototype.length;
+Array.prototype.length = 0;
+
+assert([12, 11].reduceRight(callbackfn, 11), '[12, 11].reduceRight(callbackfn, 11) !== true');
+assert(accessed, 'accessed !== true');
+
+reportCompare(0, 0);