1 files changed, 45 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-iii-1-30.js b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-iii-1-30.js
new file mode 100644
index 0000000000..901d503f04
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-8-b-iii-1-30.js
@@ -0,0 +1,45 @@
+// 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 - element changed by getter on current
+    iterations is observed in subsequent iterations on an Array
+---*/
+
+var testResult = false;
+
+function callbackfn(prevVal, curVal, idx, obj) {
+  if (idx === 1) {
+    testResult = (curVal === 1);
+  }
+}
+
+var arr = [, , 2];
+var preIterVisible = false;
+
+Object.defineProperty(arr, "0", {
+  get: function() {
+    preIterVisible = true;
+    return 0;
+  },
+  configurable: true
+});
+
+Object.defineProperty(arr, "1", {
+  get: function() {
+    if (preIterVisible) {
+      return 1;
+    } else {
+      return 100;
+    }
+  },
+  configurable: true
+});
+
+arr.reduce(callbackfn);
+
+assert(testResult, 'testResult !== true');
+
+reportCompare(0, 0);