/*

 * Copyright (c) 2018, 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

 * @build DummyWebSocketServer

 * @run testng/othervm

 *      -Djdk.internal.httpclient.websocket.debug=true

 *       SendTest

 */

import org.testng.annotations.AfterTest;

import org.testng.annotations.Test;

import java.io.IOException;

import java.net.http.WebSocket;

import java.nio.ByteBuffer;

import java.util.concurrent.CompletableFuture;

import java.util.concurrent.TimeUnit;

import java.util.concurrent.TimeoutException;

import static java.net.http.HttpClient.newHttpClient;

import static java.net.http.WebSocket.NORMAL_CLOSURE;

import static org.testng.Assert.assertEquals;

import static org.testng.Assert.assertFalse;

import static org.testng.Assert.assertThrows;

import static org.testng.Assert.assertTrue;

public class SendTest {

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

    private DummyWebSocketServer server;

    private WebSocket webSocket;

    @AfterTest

    public void cleanup() {

        server.close();

        webSocket.abort();

    }

    @Test

    public void sendMethodsThrowNPE() throws IOException {

        server = new DummyWebSocketServer();

        server.open();

        webSocket = newHttpClient().newWebSocketBuilder()

                .buildAsync(server.getURI(), new WebSocket.Listener() { })

                .join();

        assertThrows(NPE, () -> webSocket.sendText(null, false));

        assertThrows(NPE, () -> webSocket.sendText(null, true));

        assertThrows(NPE, () -> webSocket.sendBinary(null, false));

        assertThrows(NPE, () -> webSocket.sendBinary(null, true));

        assertThrows(NPE, () -> webSocket.sendPing(null));

        assertThrows(NPE, () -> webSocket.sendPong(null));

        assertThrows(NPE, () -> webSocket.sendClose(NORMAL_CLOSURE, null));

        webSocket.abort();

        assertThrows(NPE, () -> webSocket.sendText(null, false));

        assertThrows(NPE, () -> webSocket.sendText(null, true));

        assertThrows(NPE, () -> webSocket.sendBinary(null, false));

        assertThrows(NPE, () -> webSocket.sendBinary(null, true));

        assertThrows(NPE, () -> webSocket.sendPing(null));

        assertThrows(NPE, () -> webSocket.sendPong(null));

        assertThrows(NPE, () -> webSocket.sendClose(NORMAL_CLOSURE, null));

    }

    // TODO: request in onClose/onError

    // TODO: throw exception in onClose/onError

    // TODO: exception is thrown from request()

    @Test

    public void sendCloseCompleted() throws IOException {

        server = new DummyWebSocketServer();

        server.open();

        webSocket = newHttpClient().newWebSocketBuilder()

                .buildAsync(server.getURI(), new WebSocket.Listener() { })

                .join();

        webSocket.sendClose(NORMAL_CLOSURE, "").join();

        assertTrue(webSocket.isOutputClosed());

        assertEquals(webSocket.getSubprotocol(), "");

        webSocket.request(1); // No exceptions must be thrown

    }

    @Test

    public void sendClosePending() throws Exception {

        server = Support.notReadingServer();

        server.open();

        webSocket = newHttpClient().newWebSocketBuilder()

                .buildAsync(server.getURI(), new WebSocket.Listener() { })

                .join();

        ByteBuffer data = ByteBuffer.allocate(65536);

        for (int i = 0; ; i++) { // fill up the send buffer

            System.out.printf("begin cycle #%s at %s%n",

                              i, System.currentTimeMillis());

            try {

                webSocket.sendBinary(data, true).get(10, TimeUnit.SECONDS);

                data.clear();

            } catch (TimeoutException e) {

                break;

            } finally {

                System.out.printf("end cycle #%s at %s%n",

                                  i, System.currentTimeMillis());

            }

        }

        CompletableFuture<WebSocket> cf = webSocket.sendClose(NORMAL_CLOSURE, "");

        // The output closes even if the Close message has not been sent

        assertFalse(cf.isDone());

        assertTrue(webSocket.isOutputClosed());

        assertEquals(webSocket.getSubprotocol(), "");

    }

    @Test

    public void abortPendingSendBinary() throws Exception {

        server = Support.notReadingServer();

        server.open();

        webSocket = newHttpClient()

                .newWebSocketBuilder()

                .buildAsync(server.getURI(), new WebSocket.Listener() { })

                .join();

        ByteBuffer data = ByteBuffer.allocate(65536);

        CompletableFuture<WebSocket> cf = null;

        for (int i = 0; ; i++) {  // fill up the send buffer

            System.out.printf("begin cycle #%s at %s%n",

                              i, System.currentTimeMillis());

            try {

                cf = webSocket.sendBinary(data, true);

                cf.get(5, TimeUnit.SECONDS);

                data.clear();

            } catch (TimeoutException e) {

                break;

            } finally {

                System.out.printf("end cycle #%s at %s%n",

                                  i, System.currentTimeMillis());

            }

        }

        webSocket.abort();

        assertTrue(webSocket.isOutputClosed());

        assertTrue(webSocket.isInputClosed());

        Support.assertFails(IOException.class, cf);

    }

    @Test

    public void abortPendingSendText() throws Exception {

        server = Support.notReadingServer();

        server.open();

        webSocket = newHttpClient()

                .newWebSocketBuilder()

                .buildAsync(server.getURI(), new WebSocket.Listener() { })

                .join();

        String data = Support.stringWith2NBytes(32768);

        CompletableFuture<WebSocket> cf = null;

        for (int i = 0; ; i++) {  // fill up the send buffer

            System.out.printf("begin cycle #%s at %s%n",

                              i, System.currentTimeMillis());

            try {

                cf = webSocket.sendText(data, true);

                cf.get(5, TimeUnit.SECONDS);

            } catch (TimeoutException e) {

                break;

            } finally {

                System.out.printf("end cycle #%s at %s%n",

                                  i, System.currentTimeMillis());

            }

        }

        webSocket.abort();

        assertTrue(webSocket.isOutputClosed());

        assertTrue(webSocket.isInputClosed());

        Support.assertFails(IOException.class, cf);

    }

}