1 files changed, 20 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-10-4.js b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-10-4.js
new file mode 100644
index 0000000000..9670ccae3d
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/reduce/15.4.4.21-10-4.js
@@ -0,0 +1,20 @@
+// 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 - subclassed array with length more than 1
+---*/
+
+foo.prototype = new Array(1, 2, 3, 4);
+
+function foo() {}
+var f = new foo();
+
+function cb(prevVal, curVal, idx, obj) {
+  return prevVal + curVal;
+}
+
+assert.sameValue(f.reduce(cb), 10, 'f.reduce(cb)');
+
+reportCompare(0, 0);