1 files changed, 32 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-6.js b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-6.js
new file mode 100644
index 0000000000..4086e87b1a
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/filter/15.4.4.20-9-6.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
+es5id: 15.4.4.20-9-6
+description: >
+    Array.prototype.filter visits deleted element in array after the
+    call when same index is also present in prototype
+---*/
+
+function callbackfn(val, idx, obj)
+{
+  delete srcArr[2];
+  delete srcArr[4];
+  if (val > 0)
+    return true;
+  else
+    return false;
+}
+
+Array.prototype[4] = 5;
+var srcArr = [1, 2, 3, 4, 5];
+var resArr = srcArr.filter(callbackfn);
+delete Array.prototype[4];
+
+// only one element deleted
+assert.sameValue(resArr.length, 4, 'resArr.length');
+assert.sameValue(resArr[0], 1, 'resArr[0]');
+assert.sameValue(resArr[3], 5, 'resArr[3]');
+
+reportCompare(0, 0);