1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-2-3.js b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-2-3.js
new file mode 100644
index 0000000000..674169313a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-2-3.js
@@ -0,0 +1,32 @@
+// 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
+description: >
+    Array.prototype.filter applied to Array-like object, 'length' is
+    an own data property that overrides an inherited data property
+---*/
+
+function callbackfn(val, idx, obj) {
+  return obj.length === 2;
+}
+
+var proto = {
+  length: 3
+};
+
+var Con = function() {};
+Con.prototype = proto;
+
+var child = new Con();
+child.length = 2;
+child[0] = 12;
+child[1] = 11;
+child[2] = 9;
+
+var newArr = Array.prototype.filter.call(child, callbackfn);
+
+assert.sameValue(newArr.length, 2, 'newArr.length');
+
+reportCompare(0, 0);