/*

 * Copyright (c) 2019, 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.

 */

/*

 * @test

 * @bug 8221481

 * @modules java.base/java.net:+open java.base/sun.nio.ch:+open

 * @run testng CompareSocketOptions

 * @summary Compare the set of socket options supported by the old and new SocketImpls

 */

import java.io.IOException;

import java.net.ServerSocket;

import java.net.Socket;

import java.net.SocketImpl;

import org.testng.annotations.Test;

import static org.testng.Assert.*;

@Test

public class CompareSocketOptions {

    /**

     * Test that the old and new platform SocketImpl support the same set of

     * client socket options.

     */

    public void testClientSocketSupportedOptions() throws IOException {

        Socket s1 = new Socket(createOldSocketImpl(false)) { };

        Socket s2 = new Socket(createNewSocketImpl(false)) { };

        assertEquals(s1.supportedOptions(), s2.supportedOptions());

    }

    /**

     * Test that the old and new platform SocketImpl support the same set of

     * server socket options.

     */

    public void testServerSocketSupportedOptions() throws IOException {

        ServerSocket ss1 = new ServerSocket(createOldSocketImpl(true)) { };

        ServerSocket ss2 = new ServerSocket(createNewSocketImpl(true)) { };

        assertEquals(ss1.supportedOptions(), ss2.supportedOptions());

    }

    private static SocketImpl createOldSocketImpl(boolean server) {

        return newPlatformSocketImpl("java.net.PlainSocketImpl", server);

    }

    private static SocketImpl createNewSocketImpl(boolean server) {

        return newPlatformSocketImpl("sun.nio.ch.NioSocketImpl", server);

    }

    private static SocketImpl newPlatformSocketImpl(String name, boolean server) {

        try {

            var ctor = Class.forName(name).getDeclaredConstructor(boolean.class);

            ctor.setAccessible(true);

            return (SocketImpl) ctor.newInstance(server);

        } catch (Exception e) {

            fail("Should not get here", e);

            return null;

        }

    }

}