//
//  ========================================================================
//  Copyright (c) 1995-2020 Mort Bay Consulting Pty Ltd and others.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.spdy.frames;

import java.nio.ByteBuffer;

import org.eclipse.jetty.io.MappedByteBufferPool;
import org.eclipse.jetty.spdy.StandardCompressionFactory;
import org.eclipse.jetty.spdy.api.SPDY;
import org.eclipse.jetty.spdy.api.SynInfo;
import org.eclipse.jetty.spdy.generator.Generator;
import org.eclipse.jetty.spdy.parser.Parser;
import org.eclipse.jetty.util.Fields;
import org.junit.Assert;
import org.junit.Test;

public class SynStreamGenerateParseTest
{
    @Test
    public void testGenerateParse() throws Exception
    {
        byte flags = SynInfo.FLAG_CLOSE;
        int streamId = 13;
        int associatedStreamId = 11;
        byte priority = 3;
        short slot = 5;
        Fields headers = new Fields();
        headers.put("a", "b");
        headers.put("c", "d");
        SynStreamFrame frame1 = new SynStreamFrame(SPDY.V2, flags, streamId, associatedStreamId, priority, slot, headers);
        Generator generator = new Generator(new MappedByteBufferPool(), new StandardCompressionFactory().newCompressor());
        ByteBuffer buffer = generator.control(frame1);

        Assert.assertNotNull(buffer);

        TestSPDYParserListener listener = new TestSPDYParserListener();
        Parser parser = new Parser(new StandardCompressionFactory().newDecompressor());
        parser.addListener(listener);
        parser.parse(buffer);
        ControlFrame frame2 = listener.getControlFrame();

        Assert.assertNotNull(frame2);
        Assert.assertEquals(ControlFrameType.SYN_STREAM, frame2.getType());
        SynStreamFrame synStream = (SynStreamFrame)frame2;
        Assert.assertEquals(SPDY.V2, synStream.getVersion());
        Assert.assertEquals(streamId, synStream.getStreamId());
        Assert.assertEquals(associatedStreamId, synStream.getAssociatedStreamId());
        Assert.assertEquals(flags, synStream.getFlags());
        Assert.assertEquals(priority, synStream.getPriority());
        Assert.assertEquals(slot, synStream.getSlot());
        Assert.assertEquals(headers, synStream.getHeaders());
    }

    @Test
    public void testGenerateParseOneByteAtATime() throws Exception
    {
        byte flags = SynInfo.FLAG_CLOSE;
        int streamId = 13;
        int associatedStreamId = 11;
        byte priority = 3;
        short slot = 5;
        Fields headers = new Fields();
        headers.put("a", "b");
        headers.put("c", "d");
        SynStreamFrame frame1 = new SynStreamFrame(SPDY.V2, flags, streamId, associatedStreamId, priority, slot, headers);
        Generator generator = new Generator(new MappedByteBufferPool(), new StandardCompressionFactory().newCompressor());
        ByteBuffer buffer = generator.control(frame1);

        Assert.assertNotNull(buffer);

        TestSPDYParserListener listener = new TestSPDYParserListener();
        Parser parser = new Parser(new StandardCompressionFactory().newDecompressor());
        parser.addListener(listener);
        while (buffer.hasRemaining())
            parser.parse(ByteBuffer.wrap(new byte[]{buffer.get()}));
        ControlFrame frame2 = listener.getControlFrame();

        Assert.assertNotNull(frame2);
        Assert.assertEquals(ControlFrameType.SYN_STREAM, frame2.getType());
        SynStreamFrame synStream = (SynStreamFrame)frame2;
        Assert.assertEquals(SPDY.V2, synStream.getVersion());
        Assert.assertEquals(streamId, synStream.getStreamId());
        Assert.assertEquals(associatedStreamId, synStream.getAssociatedStreamId());
        Assert.assertEquals(flags, synStream.getFlags());
        Assert.assertEquals(priority, synStream.getPriority());
        Assert.assertEquals(slot, synStream.getSlot());
        Assert.assertEquals(headers, synStream.getHeaders());
    }
}
