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// Copyright 2018 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.
/* Test behaviors when the prototype has elements */
// reduce
(function () {
var array = [, 3];
function accumulate (prev, cur, curIdx, arr) { arr[curIdx] = cur + prev; }
function reduce() {
array.reduce(accumulate);
}
reduce();
assertEquals(array, [,3]);
array.__proto__.push(3);
reduce();
assertEquals(array, [, 6]);
assertEquals(Object.getOwnPropertyDescriptor(array, 0), undefined);
})();
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