nashorn/test/script/basic/NASHORN-331.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-331 : Nan compares
 *
 * @test
 * @run
 */

print(undefined == null);
print(undefined != null);
print(undefined === null);
print(undefined !== null);
print(null == undefined);
print(null != undefined);
print(null === undefined);
print(null !== undefined);

var n = Math.NaN;
var x = 17;
print(x < n);
print(x > n);
print(x >= n);
print(x <= n);
print(x == n);
print(x != n);
print(x == n);
print(x !== n);

var u = undefined;
var y = 18;
print(x < u);
print(x > u);
print(x >= u);
print(x <= u);
print(x == u);
print(x != u);
print(x == u);
print(x !== u);