1 files changed, 38 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-9.js b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-9.js
new file mode 100644
index 0000000000..199c15d30e
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-9.js
@@ -0,0 +1,38 @@
+// 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.filter
+es5id: 15.4.4.20-9-9
+description: >
+    Array.prototype.filter - modifications to length don't change
+    number of iterations
+---*/
+
+var called = 0;
+
+function callbackfn(val, idx, obj) {
+  called++;
+  return true;
+}
+
+var obj = {
+  1: 12,
+  2: 9,
+  length: 2
+};
+
+Object.defineProperty(obj, "0", {
+  get: function() {
+    obj.length = 3;
+    return 11;
+  },
+  configurable: true
+});
+
+var newArr = Array.prototype.filter.call(obj, callbackfn);
+
+assert.sameValue(newArr.length, 2, 'newArr.length');
+assert.sameValue(called, 2, 'called');
+
+reportCompare(0, 0);