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// 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);
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