1 files changed, 22 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-10-6.js b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-10-6.js
new file mode 100644
index 0000000000..f087b40433
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduceRight/15.4.4.22-10-6.js
@@ -0,0 +1,22 @@
+// 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.reduceright
+description: >
+    Array.prototype.reduceRight - subclassed array when initialvalue
+    provided
+---*/
+
+foo.prototype = new Array(0, 1, 2, 3);
+
+function foo() {}
+var f = new foo();
+
+function cb(prevVal, curVal, idx, obj) {
+  return prevVal + curVal;
+}
+
+assert.sameValue(f.reduceRight(cb, "4"), "43210", 'f.reduceRight(cb,"4")');
+
+reportCompare(0, 0);