/*
* Copyright 2013 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.handler.codec.http.websocketx;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.handler.codec.TooLongFrameException;
import io.netty.util.CharsetUtil;
import io.netty.util.ReferenceCountUtil;
import org.junit.Assert;
import org.junit.Test;
public class WebSocketFrameAggregatorTest {
private static final byte[] content1 = "Content1".getBytes(CharsetUtil.UTF_8);
private static final byte[] content2 = "Content2".getBytes(CharsetUtil.UTF_8);
private static final byte[] content3 = "Content3".getBytes(CharsetUtil.UTF_8);
private static final byte[] aggregatedContent = new byte[content1.length + content2.length + content3.length];
static {
System.arraycopy(content1, 0, aggregatedContent, 0, content1.length);
System.arraycopy(content2, 0, aggregatedContent, content1.length, content2.length);
System.arraycopy(content3, 0, aggregatedContent, content1.length + content2.length, content3.length);
}
@Test
public void testAggregationBinary() {
EmbeddedChannel channel = new EmbeddedChannel(new WebSocketFrameAggregator(Integer.MAX_VALUE));
channel.writeInbound(new BinaryWebSocketFrame(true, 1, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new BinaryWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
channel.writeInbound(new PingWebSocketFrame(Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new PongWebSocketFrame(Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new ContinuationWebSocketFrame(true, 0, Unpooled.wrappedBuffer(content3)));
Assert.assertTrue(channel.finish());
BinaryWebSocketFrame frame = channel.readInbound();
Assert.assertTrue(frame.isFinalFragment());
Assert.assertEquals(1, frame.rsv());
Assert.assertArrayEquals(content1, toBytes(frame.content()));
PingWebSocketFrame frame2 = channel.readInbound();
Assert.assertTrue(frame2.isFinalFragment());
Assert.assertEquals(0, frame2.rsv());
Assert.assertArrayEquals(content1, toBytes(frame2.content()));
PongWebSocketFrame frame3 = channel.readInbound();
Assert.assertTrue(frame3.isFinalFragment());
Assert.assertEquals(0, frame3.rsv());
Assert.assertArrayEquals(content1, toBytes(frame3.content()));
BinaryWebSocketFrame frame4 = channel.readInbound();
Assert.assertTrue(frame4.isFinalFragment());
Assert.assertEquals(0, frame4.rsv());
Assert.assertArrayEquals(aggregatedContent, toBytes(frame4.content()));
Assert.assertNull(channel.readInbound());
}
@Test
public void testAggregationText() {
EmbeddedChannel channel = new EmbeddedChannel(new WebSocketFrameAggregator(Integer.MAX_VALUE));
channel.writeInbound(new TextWebSocketFrame(true, 1, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new TextWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
channel.writeInbound(new PingWebSocketFrame(Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new PongWebSocketFrame(Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new ContinuationWebSocketFrame(true, 0, Unpooled.wrappedBuffer(content3)));
Assert.assertTrue(channel.finish());
TextWebSocketFrame frame = channel.readInbound();
Assert.assertTrue(frame.isFinalFragment());
Assert.assertEquals(1, frame.rsv());
Assert.assertArrayEquals(content1, toBytes(frame.content()));
PingWebSocketFrame frame2 = channel.readInbound();
Assert.assertTrue(frame2.isFinalFragment());
Assert.assertEquals(0, frame2.rsv());
Assert.assertArrayEquals(content1, toBytes(frame2.content()));
PongWebSocketFrame frame3 = channel.readInbound();
Assert.assertTrue(frame3.isFinalFragment());
Assert.assertEquals(0, frame3.rsv());
Assert.assertArrayEquals(content1, toBytes(frame3.content()));
TextWebSocketFrame frame4 = channel.readInbound();
Assert.assertTrue(frame4.isFinalFragment());
Assert.assertEquals(0, frame4.rsv());
Assert.assertArrayEquals(aggregatedContent, toBytes(frame4.content()));
Assert.assertNull(channel.readInbound());
}
@Test
public void textFrameTooBig() throws Exception {
EmbeddedChannel channel = new EmbeddedChannel(new WebSocketFrameAggregator(8));
channel.writeInbound(new BinaryWebSocketFrame(true, 1, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new BinaryWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content1)));
try {
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
Assert.fail();
} catch (TooLongFrameException e) {
// expected
}
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
channel.writeInbound(new ContinuationWebSocketFrame(true, 0, Unpooled.wrappedBuffer(content2)));
channel.writeInbound(new BinaryWebSocketFrame(true, 1, Unpooled.wrappedBuffer(content1)));
channel.writeInbound(new BinaryWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content1)));
try {
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
Assert.fail();
} catch (TooLongFrameException e) {
// expected
}
channel.writeInbound(new ContinuationWebSocketFrame(false, 0, Unpooled.wrappedBuffer(content2)));
channel.writeInbound(new ContinuationWebSocketFrame(true, 0, Unpooled.wrappedBuffer(content2)));
for (;;) {
Object msg = channel.readInbound();
if (msg == null) {
break;
}
ReferenceCountUtil.release(msg);
}
channel.finish();
}
private static byte[] toBytes(ByteBuf buf) {
byte[] bytes = new byte[buf.readableBytes()];
buf.readBytes(bytes);
buf.release();
return bytes;
}
}