/*
* Copyright 2012 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;
import io.netty.buffer.ByteBuf;
import io.netty.channel.embedded.EmbeddedChannel;
import io.netty.util.CharsetUtil;
import io.netty.util.ReferenceCountUtil;
import org.junit.Test;
import static io.netty.buffer.Unpooled.*;
import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
public class LineBasedFrameDecoderTest {
@Test
public void testDecodeWithStrip() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(8192, true, false));
ch.writeInbound(copiedBuffer("first\r\nsecond\nthird", CharsetUtil.US_ASCII));
ByteBuf buf = ch.readInbound();
assertEquals("first", buf.toString(CharsetUtil.US_ASCII));
ByteBuf buf2 = ch.readInbound();
assertEquals("second", buf2.toString(CharsetUtil.US_ASCII));
assertNull(ch.readInbound());
ch.finish();
ReferenceCountUtil.release(ch.readInbound());
buf.release();
buf2.release();
}
@Test
public void testDecodeWithoutStrip() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(8192, false, false));
ch.writeInbound(copiedBuffer("first\r\nsecond\nthird", CharsetUtil.US_ASCII));
ByteBuf buf = ch.readInbound();
assertEquals("first\r\n", buf.toString(CharsetUtil.US_ASCII));
ByteBuf buf2 = ch.readInbound();
assertEquals("second\n", buf2.toString(CharsetUtil.US_ASCII));
assertNull(ch.readInbound());
ch.finish();
ReferenceCountUtil.release(ch.readInbound());
buf.release();
buf2.release();
}
@Test
public void testTooLongLine1() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(16, false, false));
try {
ch.writeInbound(copiedBuffer("12345678901234567890\r\nfirst\nsecond", CharsetUtil.US_ASCII));
fail();
} catch (Exception e) {
assertThat(e, is(instanceOf(TooLongFrameException.class)));
}
ByteBuf buf = ch.readInbound();
ByteBuf buf2 = copiedBuffer("first\n", CharsetUtil.US_ASCII);
assertThat(buf, is(buf2));
assertThat(ch.finish(), is(false));
buf.release();
buf2.release();
}
@Test
public void testTooLongLine2() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(16, false, false));
assertFalse(ch.writeInbound(copiedBuffer("12345678901234567", CharsetUtil.US_ASCII)));
try {
ch.writeInbound(copiedBuffer("890\r\nfirst\r\n", CharsetUtil.US_ASCII));
fail();
} catch (Exception e) {
assertThat(e, is(instanceOf(TooLongFrameException.class)));
}
ByteBuf buf = ch.readInbound();
ByteBuf buf2 = copiedBuffer("first\r\n", CharsetUtil.US_ASCII);
assertThat(buf, is(buf2));
assertThat(ch.finish(), is(false));
buf.release();
buf2.release();
}
@Test
public void testTooLongLineWithFailFast() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(16, false, true));
try {
ch.writeInbound(copiedBuffer("12345678901234567", CharsetUtil.US_ASCII));
fail();
} catch (Exception e) {
assertThat(e, is(instanceOf(TooLongFrameException.class)));
}
assertThat(ch.writeInbound(copiedBuffer("890", CharsetUtil.US_ASCII)), is(false));
assertThat(ch.writeInbound(copiedBuffer("123\r\nfirst\r\n", CharsetUtil.US_ASCII)), is(true));
ByteBuf buf = ch.readInbound();
ByteBuf buf2 = copiedBuffer("first\r\n", CharsetUtil.US_ASCII);
assertThat(buf, is(buf2));
assertThat(ch.finish(), is(false));
buf.release();
buf2.release();
}
@Test
public void testDecodeSplitsCorrectly() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(8192, false, false));
assertTrue(ch.writeInbound(copiedBuffer("line\r\n.\r\n", CharsetUtil.US_ASCII)));
ByteBuf buf = ch.readInbound();
assertEquals("line\r\n", buf.toString(CharsetUtil.US_ASCII));
ByteBuf buf2 = ch.readInbound();
assertEquals(".\r\n", buf2.toString(CharsetUtil.US_ASCII));
assertFalse(ch.finishAndReleaseAll());
buf.release();
buf2.release();
}
@Test
public void testFragmentedDecode() throws Exception {
EmbeddedChannel ch = new EmbeddedChannel(new LineBasedFrameDecoder(8192, false, false));
assertFalse(ch.writeInbound(copiedBuffer("huu", CharsetUtil.US_ASCII)));
assertNull(ch.readInbound());
assertFalse(ch.writeInbound(copiedBuffer("haa\r", CharsetUtil.US_ASCII)));
assertNull(ch.readInbound());
assertTrue(ch.writeInbound(copiedBuffer("\nhuuhaa\r\n", CharsetUtil.US_ASCII)));
ByteBuf buf = ch.readInbound();
assertEquals("huuhaa\r\n", buf.toString(CharsetUtil.US_ASCII));
ByteBuf buf2 = ch.readInbound();
assertEquals("huuhaa\r\n", buf2.toString(CharsetUtil.US_ASCII));
assertFalse(ch.finishAndReleaseAll());
buf.release();
buf2.release();
}
}