/*

 * 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-256 : should be able to delete global builtin objects like JSON, Math etc.

 *

 * @test

 * @run

 */

function deleteAndCheck(name) {

    if (! (delete this[name])) {

        fail("cannot delete " + name);

    } else {

        if (typeof this[name] !== 'undefined') {

            fail(name + " is not undefined after delete!");

        }

    }

}

deleteAndCheck("Object");

deleteAndCheck("Function");

deleteAndCheck("Array");

deleteAndCheck("Boolean");

deleteAndCheck("Date");

deleteAndCheck("JSON");

deleteAndCheck("JSAdapter");

deleteAndCheck("Math");

deleteAndCheck("Number");

deleteAndCheck("RegExp");

deleteAndCheck("String");

deleteAndCheck("Error");

deleteAndCheck("Error");

deleteAndCheck("RangeError");

deleteAndCheck("ReferenceError");

deleteAndCheck("SyntaxError");

deleteAndCheck("TypeError");

deleteAndCheck("URIError");

function deleteFailCheck(name) {

    if (delete this[name]) {

        fail("can delete " + name);

    } else {

        if (typeof this[name] === 'undefined') {

            fail(name + " was deleted!");

        }

    }

}

deleteFailCheck("NaN");

deleteFailCheck("Infinity");

if (delete undefined) {

    fail("can delete 'undefined'");

}