blob: ca639f4da2138c351c991ec1615130ce0b3bb520 [file] [log] [blame]
// 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.
// indexOf
/* Test behaviors when the prototype has elements */
(function() {
const iarr = [,3];
function indexOf(arr, val) {
return arr.indexOf(val);
}
assertEquals(-1, indexOf(iarr, 2));
assertEquals(1, indexOf(iarr, 3));
iarr.__proto__ = [2];
assertEquals(0, indexOf(iarr, 2));
})();
// This pollutes the Array prototype, so we should not run more tests
// in the same environment after this.
(function () {
var array = [,];
function indexOf(val) {
return array.indexOf(val);
}
assertEquals(indexOf(6), -1);
array.__proto__.push(6);
assertEquals(indexOf(6), 0);
})();