1 files changed, 31 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-2.js b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-2.js
new file mode 100644
index 0000000000..f53cc471bd
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-2.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.reduce
+description: >
+    Array.prototype.reduce - modifications to length don't change
+    number of iterations in step 9
+---*/
+
+function callbackfn(prevVal, curVal, idx, obj) {
+  return idx;
+}
+
+var obj = {
+  3: 12,
+  4: 9,
+  length: 4
+};
+
+Object.defineProperty(obj, "2", {
+  get: function() {
+    obj.length = 10;
+    return 11;
+  },
+  configurable: true
+});
+
+assert.sameValue(Array.prototype.reduce.call(obj, callbackfn), 3, 'Array.prototype.reduce.call(obj, callbackfn)');
+
+reportCompare(0, 0);