nashorn/test/script/basic/NASHORN-182.js

/*
 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/**
 * NASHORN-182 :  Array.prototype.reduce does not exit early when a getter function throws error.
 *
 * @test
 * @run
 */

function callback(prev, cur, idx, obj) {
    fail("callback with " + idx);
}

// array-like object
var obj = { 1: 1, 2: 2, length: 3 };

Object.defineProperty(obj, "0", {
    get: function () {
        throw new RangeError("exception from getter for '0'");
    },
 });

obj.reduce = Array.prototype.reduce;

try {
    obj.reduce(callback);
    fail("should have thrown RangeError");
} catch (ex) {
    if (! (ex instanceof RangeError)) {
        fail("RangeException expected, got " + ex);
    }
}