1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_holey-sloppy-arguments.js b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_holey-sloppy-arguments.js
new file mode 100644
index 0000000000..5f8cbfaab4
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Array/prototype/concat/Array.prototype.concat_holey-sloppy-arguments.js
@@ -0,0 +1,21 @@
+// Copyright (c) 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+
+/*---
+esid: sec-array.prototype.concat
+description: Array.prototype.concat holey sloppy arguments
+includes: [compareArray.js]
+features: [Symbol.isConcatSpreadable]
+---*/
+var args = (function(a) {
+  return arguments;
+})(1, 2, 3);
+delete args[1];
+args[Symbol.isConcatSpreadable] = true;
+assert.compareArray([1, void 0, 3, 1, void 0, 3], [].concat(args, args),
+  '[1, void 0, 3, 1, void 0, 3] must return the same value returned by [].concat(args, args)'
+);
+
+reportCompare(0, 0);