1 files changed, 29 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-9-c-ii-8.js b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-9-c-ii-8.js
new file mode 100644
index 0000000000..16d476bb34
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-9-c-ii-8.js
@@ -0,0 +1,29 @@
+// 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 - element changed by callbackfn on
+    previous iterations is observed
+---*/
+
+var accessed = false;
+var obj = {
+  0: 11,
+  1: 12,
+  length: 2
+};
+
+function callbackfn(prevVal, curVal, idx, obj) {
+  accessed = true;
+  if (idx === 1) {
+    obj[idx - 1] = 8;
+  }
+  return curVal > 10;
+}
+
+assert.sameValue(Array.prototype.reduceRight.call(obj, callbackfn, 1), false, 'Array.prototype.reduceRight.call(obj, callbackfn, 1)');
+assert(accessed, 'accessed !== true');
+
+reportCompare(0, 0);