1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-b-14.js b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-b-14.js
new file mode 100644
index 0000000000..edbd8ad8b9
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-9-b-14.js
@@ -0,0 +1,36 @@
+// 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 - decreasing length of array in step 8
+    causes deleted index property not to be visited
+---*/
+
+var accessed = false;
+var testResult = true;
+
+function callbackfn(accum, val, idx, obj) {
+  accessed = true;
+  if (idx === 2) {
+    testResult = false;
+  }
+}
+
+var arr = [0, 1, 2, 3];
+
+Object.defineProperty(arr, "0", {
+  get: function() {
+    arr.length = 2;
+    return 0;
+  },
+  configurable: true
+});
+
+arr.reduce(callbackfn);
+
+assert(testResult, 'testResult !== true');
+assert(accessed, 'accessed !== true');
+
+reportCompare(0, 0);