/*

 * 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.

 *

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 */

/*

 * @test

 * @bug 8224477

 * @summary Basic test for java.net.SocketImpl default behavior

 * @run testng TestDefaultBehavior

 */

import java.io.IOException;

import java.io.InputStream;

import java.io.OutputStream;

import java.net.InetAddress;

import java.net.SocketAddress;

import java.net.SocketImpl;

import java.net.SocketOption;

import java.util.Set;

import org.testng.annotations.Test;

import static java.lang.Boolean.*;

import static java.net.StandardSocketOptions.*;

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.expectThrows;

public class TestDefaultBehavior {

    static final Class<NullPointerException> NPE = NullPointerException.class;

    static final Class<UnsupportedOperationException> UOE = UnsupportedOperationException.class;

    @Test

    public void socketImpl() {

        CustomSocketImpl csi = new CustomSocketImpl();

        assertEquals(csi.supportedOptions().size(), 0);

        expectThrows(NPE, () -> csi.setOption(null, null));

        expectThrows(NPE, () -> csi.setOption(null, 1));

        expectThrows(UOE, () -> csi.setOption(SO_RCVBUF, 100));

        expectThrows(UOE, () -> csi.setOption(SO_KEEPALIVE, TRUE));

        expectThrows(UOE, () -> csi.setOption(SO_KEEPALIVE, FALSE));

        expectThrows(UOE, () -> csi.setOption(FAKE_SOCK_OPT, TRUE));

        expectThrows(UOE, () -> csi.setOption(FAKE_SOCK_OPT, FALSE));

        expectThrows(UOE, () -> csi.setOption(SO_KEEPALIVE, TRUE));

        expectThrows(NPE, () -> csi.getOption(null));

        expectThrows(UOE, () -> csi.getOption(SO_RCVBUF));

        expectThrows(UOE, () -> csi.getOption(SO_KEEPALIVE));

        expectThrows(UOE, () -> csi.getOption(FAKE_SOCK_OPT));

    }

    static final SocketOption<Boolean> FAKE_SOCK_OPT = new SocketOption<>() {

        @Override public String name() { return "FAKE_SOCK_OPT"; }

        @Override public Class<Boolean> type() { return Boolean.class; }

    };

    // A SocketImpl that delegates the three new-style socket option

    // methods to the default java.net.SocketImpl implementation.

    static class CustomSocketImpl extends SocketImpl {

        @Override

        public <T> void setOption(SocketOption<T> name, T value) throws IOException {

            super.setOption(name, value);

        }

        @Override

        public Set<SocketOption<?>> supportedOptions() {

            return super.supportedOptions();

        }

        @Override

        public <T> T getOption(SocketOption<T> name) throws IOException {

            return super.getOption(name);

        }

        // --

        @Override protected void create(boolean stream) { }

        @Override protected void connect(String host, int port) { }

        @Override protected void connect(InetAddress address, int port) { }

        @Override protected void connect(SocketAddress address, int timeout)  { }

        @Override protected void bind(InetAddress host, int port) { }

        @Override protected void listen(int backlog) { }

        @Override protected void accept(SocketImpl s)  { }

        @Override protected InputStream getInputStream() { return null; }

        @Override protected OutputStream getOutputStream() { return null; }

        @Override protected int available() { return 0; }

        @Override protected void close() { }

        @Override protected void sendUrgentData(int data)  { }

        @Override public void setOption(int optID, Object value) { }

        @Override public Object getOption(int optID) { return null; }

    }

}